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现在完成时否定句结构

2023-07-19 10:22:05
拌三丝

否定句结构:主语+have/has+not+动词的过去分词。肯定句结构:主语+have/has+过去分词。疑问句结构:Have/Has+主语+过去分词。

现在完成时

现在完成时( The Present Perfect Tense)是过去的动作或状态持续到现在,对现在造成的影响,可能持续发生下去。在英语时态中,“时”指动作发生的时间,“态”指动作的样子和状态。

完成时态的构成分为两部分:一是助动词,二是实义动词的过去分词-ed。具体来说,用助动词have/has表示“时”,以表明动作发生的时间是在过去、现在还是将来;用过去分词来表示动作的“态”,以表明该动作已经完成,而且对现在有一定的影响。

它的构成是:主语+助动词(have/has)+动词的过去分词。(done)

动词过去分词变化规则

规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。五点变化规则:

(1)一般动词,在词尾直接加“-ed”。

work---worked,visit---visited

(2)以不发音的“e、ue”结尾的动词,只在词尾加“-d”。

live---lived

(3)以“辅音字母+y”结尾的动词,将"y"变为"i",再加“-ed”。

study—studied,cry—cried,try—tried

(4)“重读闭音节”结尾,且末尾只有一个辅音字母(w、y、x除外),辅音字母前只有一个元音字母,先双写该辅音字母,再加“-ed”。

stop—stopped,plan—planned

特例:有两类动词本身应该直接加“-ed”,但由于历史习惯,依旧要双写最后一个字母,再加“-ed”。以“元音字母+l”非重读结尾的规则动词变过去分词也要双写“l",再加“-ed”。例如cancel→cancelled,dial→dialled。另外还有一些以非重读闭音节结尾的规则动词变过去分词也要双写最后一个辅音字母,再加“-ed”。例如:kidnap→kidnapped,worship→worshipped。而上述两种情况在美国一般却直接加“-ed”。

(5)以c结尾的动词,要变c为ck,再加“-ed”。

picnic→picnicked,traffic→trafficked

英语过去分词变化规则

动词过去式和过去分词法则(一)、不规则动词过去式和过去分词 动词的过去式和过去分词是初中英语教学中的重点,而有些动词的不规则变化是这些重点中的难点,但这些不规则变化也不是毫无规律可循的.现将初中英语中一些常用的不规则动词变化介绍如下.一、原形、过去式和过去分词的词形和读音都相同的单词,结尾字母一般是t或d.如:cut-cut-cut,hit-hit-hit,put-put-put,cost-cost-cost,let-let-let,shut-shut-shut,set-set-set,hurt-hurt-hurt,spread-spread-spread 特殊:动词read的过去式和过去分词虽然词形与原形一致,read-read-read,但发音分别是[ri:d]-[red]-[red].二、有些动词的过去分词与原形是一样的.如:come-came-come,become-became-become,run-ran-run,overcome-overcame-overcome三、有些动词的过去式和过去分词相同.如:1.把单词结尾的字母d改为t.如:lend-lent-lent,spend-spent-spent,send-sent-sent2.改变单词中间元音字母.如:sit-sat-sat,win-won-won,shine-shone-shone,hold-held-held3.以eep结尾的动词,把eep改为ept.如:keep-kept-kept,sleep-slept-slept,sweep-swept-swept4.过去式和过去分词都以augh或ough结尾的动词.如:buy-bought-bought,fight-fought-fought,think-thought-thought,bring-brought-brought,teach-taught-taught,catch-caught-caught5.有的以ay结尾的动词,在过去式和过去分词中把ay变成aid.如:say-said-said,lay-laid-laid,pay-paid-paid6.另有一些其它形式的变化.如:have-had-had,learn-learnt-learnt,leave-left-left,lose-lost-lost,make-made-made,meet-met-met,feel-felt-felt四、有些动词原形中含有字母i,在过去式中变i为a,在过去分词中变i为u.如:五、以字母ow或aw结尾的动词,在变成过去式时,通常把元音字母变成e,在变成过去分词时,通常只在词尾加n.如:blow- blew- blown,draw-drew-drawn,grow-grew-grown,throw-threw-thrown,know-knew-known六、有些动词的过去分词是在原形词尾加n或en,变成以en结尾的单词.如:rise-rose-risen,give-gave-given,take-took-taken,fall-fell-fallen,drive-drove-driven,eat-ate-eaten特殊:write-wrote-written,speak-spoke-spoken,ride-rode-ridden,get-got-gotten(二)、动词过去式和过去分词的变化规则动词过去式和过去分词有规则变化和不规则变化两种.1) 规则变化 情况 例词 读音与说明 动词原形 过去式 过去分词 一般在动词原形后加-ed look call open need looked called opened needed looked [lukt] called [kC:ld] opened [5EupEnd] needed [ni:did] ①-ed在清辅音音素后 发音为〔t〕,在浊辅音后发音为〔d〕,在元音后发音也为[d] ②-ed在〔t]、〔d〕 后发音为[id] ③但fix的过去式和过去
2023-07-18 17:20:592

一般动词的过去分词变化规则

动词的过去分词变化规则: 1、一般在动词原形后加-ed 原形。 2、以-e结尾的动词直接加-d。 3、以辅音字母加y结尾的动词,变y为i, 再加-ed。 4、以元音字母加y结尾的词,直接加-ed。 5、末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加-ed。 扩展资料   动词过去分词与动词过去式的区别:   1、定义不同:   动词的过去式是一个动词,单独作谓语。不能与助动词、情态动词连用。它的`词性与动词的第三人称单数一样。 动词的过去式可分为规则动词和不规则动词。   2、用法不同:   动词的过去分词是动词的一种非谓语形式,也叫非限定性动词。不能独立作谓语,只能与助动词一起构成谓语。如:“have/has/had +过去分词”构成完成时态;“be+过去分词”构成被动语态等。   它相当于一个形容词或副词,在句中起一个形容词或副词的作用,可作表语、定语、补语等。它的作用与现在分词doing类似。过去分词表的意义是被动或完成。   3、词性不同:   过去式和过去分词最主要的区别是:过去式是一个动词,而过去分词是一个动词的非谓语形式,相当于一个形容词或副词。
2023-07-18 17:21:241

过去分词的变化规则

规则动词过去分词构成规则:1、一般动词,在词尾直接加“-ed”。(然而要注意的是,过去分词并不是过去式)work——worked——worked,visit——visited——visited2、以不发音的“e”结尾的动词,只在词尾加“d”。live——lived——lived3、以“辅音字母+y”结尾的动词,将"y"变为"i",再加“-ed”。study—studied—studied,cry—cried—cried,try—tried—tried,fry—fried—fried.4、重读闭音节结尾,末尾只有一个辅音字母(r、y、x除外),先双写该辅音字母,再加“-ed”。stop—stopped—stopped,drop—dropped—dropped常用过去分词be(am,is,are) (是)was,were beenbegin(开始)began begundrink(喝)drank drunkring(铃响)rang rungsing(唱)sang sungswim(游泳)swam swumblow(吹)blew blowndraw(画)drew drawn
2023-07-18 17:21:341

动词过去分词形式变化规则

动词过去分词形式变化规则是: 1、一般在动词原形词尾加ed。 2、以不发音的e结尾的动词加d。 3、末尾只有一个辅音字母的重读闭音节词,先双写这个辅音字母,再加ed。 4、结尾是“辅音字母+y”的动词,先变y为i再加ed。 扩展资料   (1)一般动词,在词尾直接加“-ed ”。(然而要注意的是,过去分词并不是过去式)   work---worked---worked,visit---visited---visited   (2)以不发音的.“e”结尾的动词,只在词尾加“d ”。   live---lived---lived   (3)以“辅音字母 + y ”结尾的动词,将 "y" 变为 "i" ,再加“-ed”。   study—studied—studied,cry—cried—cried,try—tried—tried,fry—fried—fried。
2023-07-18 17:21:481

过去分词的变化规则

过去分词的变化规则:一般在动词原形后加ed;以e结尾的动词直接加d;以辅音字母加y结尾的词,直接加ed。分规则变化和不规则变化两种。不规则变化需逐个记忆,规则变化遵循以下原则:(1)一般情况下,在动词后加ed构成:work/worked,stay/stayed,shout/shouted等。(2)在以-e结尾动词后只加d:close/closed,like/liked,live/lived,smile/smiled等。(3)以辅音字母加y结尾的动词,应将y改为i再加-ed:study/studied,carry/carried等。(4)以重读闭音节或r音节结尾且末尾只有一个辅音字母动词,要双写末尾的辅音字母再加-ed:stop/stopped,admit/admitted,refer/referred,prefer/preferred等。【注】(1)以字母l结尾的动词,若末尾一个音节为重读音节,则必须双写l再加-ed,如control/controlled,但若末尾一个音节为非重读音节,则可双写l(英国英语)或不双写l(美国英语),如travel/travel(l)ed。(2)动词picnic(野餐)的过去式和过去分词是picnicked,不是picniced。(3)词尾-ed读音规则是:在清辅音后读作[t],元音和浊辅音后读作[d],在辅音[t]或[d]后读作[id]。
2023-07-18 17:21:571

过去分词的变化规则

关于过去分词的变化规则这个问题有如下解答。过去分词的变化规则一般在动词原形后加ed;以e结尾的动词直接加d;以辅音字母加y结尾的动词,变y为i,再加ed;以元音字母加y结尾的词,直接加ed。1、过去分词属于非谓语动词,只含有“状态”信息,不含有“时间”信息,内涵上表示“完成、和被动”。过去分词没有时间内涵,所以不能独立做谓语动词,因此不是一个完整独立的时态。过去式有了时间内涵,可以独立做谓语动词,因此是一个完整独立的时态。2、现在分词表示的意义是主动和进行。过去分词表示的意义是被动和完成。分词单独作定语修饰名词时,通常放在名词前面。分词短语作定语修饰名词时,通常放在名词后面,意义上相当于一个定语从句。3、现在分词作表语,通常表示主语所具有的特征。过去分词作表语,通常表示主语所处的状态。分词或分词短语作状语时可转换成相应的状语从句。分词单独作状语,可转换成一个相应的状语从句。以上为过去分词变化规则。
2023-07-18 17:22:141

动词过去分词的变化规则

动词过去分词的变化规则因动词类别不同而不同。以下是一些常见的规则:1、以辅音字母+y结尾的动词,去掉y变为i,再加-ed,如:cry—cried.2、以e结尾的动词,直接加-ed,如:love—loved.3、 以重读闭音节结尾的单词,最后一个辅音字母要双写,再加-ed,如:stop—stopped.4、 其他动词,直接加-ed,如:play—played。当然也有一些无规则变化的动词,比如:go—gone、see—seen、do—done等。动词过去分词用法的例子:形成完成时态:这种时态通常用来表明动作已经完成或已经发生过,并且可能会对现在或未来产生影响。例如:1、have eaten breakfast already. (我已经吃过早饭了。)2、They have visited the museum twice. (他们已经两次参观了博物馆。)形成被动语态:这种语态用来强调动作的受事者而非执行者。例如:1、The book was written by Jane Austen. (这本书是珍·奥斯汀写的。)2、The flowers were planted by my sister. (这些花是我妹妹种的。)用作形容词:这种形式可以用作形容词来描述或修饰名词或代词。例如:1、The broken vase was on the table. (摔破的花瓶放在桌子上。)2、The excited children ran to the playground. (兴奋的孩子们跑到了游乐场。) 形成非谓语动词:这种形式可以用来表示主语的行为或状态,通常与情态动词或主动语态一起使用。例如:1、She should have studied harder. (她应该更努力地学习。)2、We want to have finished the project by Friday. (我们希望在周五之前完成这个项目。)
2023-07-18 17:22:341

动词的过去式和过去分词的变化规则?

规则变化一般在词尾加ed以不发音字母e结尾 只加d以辅音字母加y结尾,把y改为I 再加ed以重读闭音节结尾且只有一个辅音字母,双写辅音字母再加ed
2023-07-18 17:22:562

过去分词的规则有哪些呢?

一般过去时变化规则(1) 一般在动词后加-ed。如:play—played, offer—offered, weigh—weighed,Destroy— destroyed, sign—signed.(2) 在以字母e结尾的动词后,只加-d。如:like—liked, provide—provided, hate — hated, date—dated。(3) 在以“辅音字母+y”结尾的动词后,则改y为i,再加ed。如:supply—supplied, fly—flied, study— studied.(4) 在以单短元音的重读闭音节结尾且末尾只有一个辅音字母的动词后,双写最后一个辅音字母,再加-ed。如:plan—planned, refer—referred, regret—regretted, ban—banned.
2023-07-18 17:23:051

动词的过去分词变化规律?

日语动词过去时变化规则:一、一类动词的变形:词尾带る、つ、う的假名,去掉る、つ、う+った。词尾带む、ぬ、ぶ的假名,去掉む、ぬ、ぶ+んた。词尾带く、ぐ的假名,去掉く、ぐ+いた。二、二类动词的变形:词尾为い段、え段的假名+る,去掉词尾直接加た。三、三类动词变形:する的过去时是した。来(く)る的过去时是来(き)た特殊单词变形:行く的过去时是行った。以上是日语的简体形。敬语形变化规则:一、一类动词的变形:词尾带う段的,把う段改成い段,再加ました。二、二类动词的变化:二类动词可直接去る,再加ました。三、三类动词的变形:する的过去时是しました。来(く)る的过去时是来(き)ました。
2023-07-18 17:23:352

规则的过去分词怎么变

2023-07-18 17:23:441

英语 动词变过去分词的规律?

一、规则变化1、 一般情况下,动词词尾加-ed,如:work—worked play—played want—wanted ask—asked2、 以不发音的-e结尾动词,动词词尾加-d,如:live—lived move—moved taste—tasted3、 以“辅音字母+y”结尾的动词,把y改成i,加—ed,如:study—studies try—tried copy—copied carry—carried4、 重读闭音节动词,双写词尾辅音字母,再加—ed,如:stop—stopped 二、不规则变化的过去分词要硬记你的采纳我的动力很高兴能够帮助你
2023-07-18 17:23:511

动词过去分词的规则变化规律和不规则变化

规则动词的过去式变化如下:一般情况下,动词词尾加-ed,如:workedplayedwantedacted以不发音的-e结尾动词,动词词尾加-d,如:livedmoveddecideddeclinedhopedjudgedraisedwiped以辅音字母+y结尾的动词,把-y变为-i再加-ed,如:studiedtriedcopiedjustifiedcriedcarriedembodiedemptied以一个辅音字母结尾的重读闭音节动词,双写词尾辅音字母,再加-ed,如:stoppedbeggedfretteddraggeddroppedplanneddotteddripped注:不规则动词的过去式变化规律性不强,须多加记忆。go-wentmake-madeget-gotbuy-boughtcome-camefly-flew动词过去式,过去分词不规则变化AB型cancouldshallshouldwillwouldmaymightAAA型costcostcostcutcutcuthithithithurthurthurtletletletmustmustmustputputputsetsetsetshutshutshutreadreadreadAAB型beatbeatbeatenABA型becomebecamebecomecomecamecomerunranrunABB型bringbroughtbroughtbuyboughtboughtthinkthoughtthoughtcatchcaughtcaughtteachtaughttaughtbuildbuiltbuiltlendlentlentsendsentsentspendspentspentdigdugdughanghunghungfeelfeltfeltkeepkeptkeptsleepsleptsleptsweepsweptsweptleaveleftleftsmellsmeltsmeltspillspiltspiltlaylaidlaidpaypaidpaidsaysaidsaidsellsoldsoldtelltoldtoldsitsatsatspitspatspatstandstoodstoodunderstandunderstoodunderstoodlearnlearntlearntmeanmeantmeantspoilspoiltspoiltshineshoneshonewinwonwonhavehadhadmakemademadehearheardheardfindfoundfoundholdheldheldABC型beginbeganbegundrinkdrankdrunkringrangrungsingsangsungsinksanksunkswimswamswumblowblewblownflyflewflowngrowgrewgrownknowknewknownthrowthrewthrowndrawdrewdrawnshowshowedshownbreakbrokebrokenchoosechosechosenforgetforgotforgottenfreezefrozefrozenspeakspokespokenwakewokewokendrivedrovedriveneatateeatenfallfellfallengivegavegivenhidehidhiddenrideroderiddenriseroserisentaketooktakenmistakemistookmistakenwritewrotewrittenam,iswasbeenarewerebeendodiddonegowentgonelielaylainseesawseenwearworeworn易错型showshowedshowndrawdrewdrawnfallfellfallenfeelfeltfeltholdheldheldhelphelpedhelpedthinkthoughtthoughtthankthankedthankedtaketooktakentalktalkedtalkedgetgotgotforgetforgotforgottenmeetmetmetmeanmeantmeanthithithithidehidhiddenringrangrungbringbroughtbroughteatateeatenbeatbeatbeatenlielaylainlaylaidlaidfindfoundfoundfoundfoundedfoundedbuyboughtboughtbringbroughtbroughtlearnlearntlearnthearheardheard
2023-07-18 17:23:581

动词过去分词构成规则

过去分词的变化规则:一般在动词原形后加ed;以e结尾的动词直接加d;以辅音字母加y结尾的动词,变y为i,再加ed;以元音字母加y结尾的词,直接加ed。 扩展资料   动词的过去式和过去分词的`变化规则有五种,详细如下:   1、一般在动词原形后加-ed。   例:look;looked;looked;call;called;called   注意:-ed在清辅音音素后 发音为[t],在浊辅音后发音为[d],在元音后发音也为[d],-ed在[t]、[d]后发音为[id] needed[ni:did].   2、以-e结尾的动词直接加-d。   例:move;moved;moved;phone;phoned;phoned   3、以辅音字母加y结尾的动词,变y为i,再加-ed。   例:study;studied;studied   4、以元音字母加y结尾的词,直接加-ed。   例:play;played;played   5、末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加-ed。   例:stop;stopped;stopped   常用过去分词   be(am,is,are) (是)was,were been   begin(开始) began begun   drink(喝) drank drunk   ring(铃响) rang rung   sing (唱) sang sung
2023-07-18 17:24:041

动词的变化规则有哪些

动词的变化规则有: 1、一般在动词原形后加-ed 原形。 2、以-e结尾的动词直接加-d。 3、以辅音字母加y结尾的动词,变y为i, 再加-ed。 4、以元音字母加y结尾的词,直接加-ed。 5、末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加-ed。 扩展资料   动词过去分词与动词过去式的区别:   1、定义不同   动词的过去式是一个动词,单独作谓语。不能与助动词、情态动词连用。它的词性与动词的第三人称单数一样。 动词的过去式可分为规则动词和不规则动词。   2、用法不同   动词的过去分词是动词的一种非谓语形式,也叫非限定性动词。不能独立作谓语,只能与助动词一起构成谓语。如:“have/has/had +过去分词”构成完成时态;“be+过去分词”构成被动语态等。   它相当于一个形容词或副词,在句中起一个形容词或副词的作用,可作表语、定语、补语等。它的作用与现在分词doing类似。过去分词表的意义是被动或完成。   3、词性不同   过去式和过去分词最主要的区别是:过去式是一个动词,而过去分词是一个动词的非谓语形式,相当于一个形容词或副词。   动词过去分词变化规则:   规则动词的过去分词的构成规则与规则动词的.过去式的构成规则相同。五点变化规则:   (1)一般动词,在词尾直接加“-ed ”。   work---worked,visit---visited   (2)以不发音的“e、ue”结尾的动词,只在词尾加“-d ”。   live---lived   (3)以“辅音字母+ y ”结尾的动词,将"y"变为"i",再加“-ed”。   study—studied,cry—cried,try—tried   (4)“重读闭音节”结尾,且末尾只有一个辅音字母(w、y、x除外),辅音字母前只有一个元音字母,先双写该辅音字母,再加“-ed”。   stop—stopped,plan—planned   特例:有两类动词本身应该直接加“-ed”,但由于历史习惯,依旧要双写最后一个字母,再加“-ed”。以“元音字母+l”非重读结尾的规则动词变过去分词也要双写“l",再加“-ed”。例如cancel→cancelled,dial→dialled。另外还有一些以非重读闭音节结尾的规则动词变过去分词也要双写最后一个辅音字母,再加“-ed”。例如:kidnap→kidnapped,worship→worshipped。而上述两种情况在美国一般却直接加“-ed”。   (5)以c结尾的动词,要变c为ck,再加“-ed”。   picnic→picnicked,traffic→trafficked
2023-07-18 17:24:131

求过去式与过去分词的区别和变化规律

1) AAA型(动词原形、过去式、过去分词同形) cost(花费) cost cost cut(割) cut cut hit(打) hit hit hurt 伤害) hurt hurt let(让) let let put(放) put put read (读) read read (2) AAB型(动词原形与过去式同形) beat(跳动) beat beaten (3) ABA型(动词原形与过去分词同形) become(变成) became become come(来) came come run(跑) ran run (4) ABB型(过去式与过去分词同形) dig(挖) dug dug get(得到) got got hang(吊死) hanged hanged hang(悬挂) hung hung hold(抓住) held held shine(照耀) shone shone sit(坐) sat sat win (赢) won won meet(遇见) met met keep (保持) kept kept sleep(睡) slept slept sweep(扫) swept swept feel(感觉) felt felt smell(闻) smelt smelt leave(离开) left left build(建设) built built lend(借出) lent lent send (传送) sent sent spend(花费) spent spent lose (丢失) lost lost burn (燃烧) burnt burnt learn(学习) learnt learnt mean(意思是) meant meant catch(抓住) caught caught teach(教) taught taught bring(带来) brought brought fight (战斗) fought fought buy(买) bought bought think(想) thought thought hear (听见) heard heard sell(卖) sold sold tell(告诉) told told say(说) said said find(找到) found found have/has(有) had had make(制造) made made stand(站) stood stood understand明白understood understood (5) ABC型(动词原形、过去式与过去分词三者不同形) begin(开始) began begun drink(喝) drank drunk ring(铃响) rang rung sing (唱) sang sung swim(游泳) swam swum blow(吹) blew blown draw (画) drew drawn fly(飞) flew flown grow(生长) grew grown know(知道) knew known throw(投掷) threw thrown show(出示) showed shown break(打破) broke broken choose(选择) chose chosen forget(忘记) forgot forgotten (forgot) speak(说,讲) spoke spoken wake(醒) woke woke drive(驾驶) drove driven eat(吃) ate eaten fall(落下) fell fallen give(给) gave given rise(升高) rose risen take(取) took taken mistake(弄错) mistook mistaken ride(骑) rode ridden write(写) wrote written do(做) did done go(去) went gone lie(平躺) lay lain see(看见) saw seen wear (穿) wore worn be ( am, is, are )(是)was, were been我是……
2023-07-18 17:24:363

动词过去式和过去分词不规则变化的规律

不规则变化那里有规律?有规律就不叫不规则了顶多是有几个类似单词变化相似罢了eep-ept keep-kept sweep-swept
2023-07-18 17:24:592

什么叫做过去分词

一般是由动词加“-ed”构成,不规则动词的过去分词可见不规则动词表。过去分词属于类动词,有以下几种用法:1、及物动词的过去分词作表语,与句子的主语是被动关系,表示主语的状态,不但表示被动,还强调已完成了;2、不及物动词的过去分词作表语,与句子的主语是主动关系,表示主语的状态,同样强调动作的完成;3、有些过去分词作表语时,构成的谓语很接近被动结构。
2023-07-18 17:25:0914

动词的过去式与动词的过去分词的变化规则是否一样?

不一样,有规则的..有不规则的.规则的大部分就是它的过去式,不规则的有很多的变化方式.你可以去到一些网站看看,记住不规则的过去分词.
2023-07-18 17:26:011

过去式和过去分词有什么不同

规则动词的过去分词一般是由动词加ed构成(具体规则见后),不规则动词的过去分词见不规则动词表。 过去分词则属于类动词: 1. 及物动词的过去分词作表语,与句子的主语是被动关系,表示主语的状态,不但表示被动,还表示已完成了。 The cup is broken. 茶杯破了。 2. 不及物动词的过去分词作表语,与句子的主语是主动关系,表示主语的状态,只表示动作的完成。 He is retired. 他已退休。 3. 有些过去分词作表语时,构成的谓语很接近被动结构。目录Past Participle构成规则当过去分词作为表语当过去分词作为定语当过去分词作为状语当过去分词作为宾语补主语with +宾语+过去分词"的结构过去分词不规则变化表Past Participle 构成规则 当过去分词作为表语 当过去分词作为定语 当过去分词作为状语 当过去分词作为宾语补主语 with +宾语+过去分词"的结构过去分词不规则变化表展开编辑本段Past Participle无内容编辑本段构成规则  构成:主语+have/has+动词的过去分词(done)   1.规则动词:规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则:   (1)、一般动词,在词尾直接加“ ed ”。(然而要注意的是,过去分词并不是过去式)   work---worked---worked,visit---visited---visited   (2)、以“ e ”结尾的动词,只在词尾加“ d ”。   live---lived   (3)、以“辅音字母 + y ”结尾的动词,将 "y" 变为 "i" ,再加“ ed ”。   study---studied---studied,cry---cried---cried,   (4)、重读闭音节结尾,末尾只有一个辅音字母,先双写该辅音字母,再加“ ed ”。   stop---stopped---stopped,drop---dropped--dropped   2 、不规则动词,见不规则表当过去分词作为表语  The city is surrounded on three sides by mountains. 这座城市三面环山。   【注意】过去分词作表语与被动语态的区别:过去分词作表语,主要是表示主语的状态,而被动语态则表示动作。   (1) The cup was broken by my little sister yesterday. 茶杯是昨天我小妹打碎的。(是被动语态,表示动作)   (2) The library is now closed. 图书馆关门了。(过去分词作表语)   【注意】过去分词表示被动或完成,V-ing 形式表示主动或进行.有些动词如 interest,bore,worry,surprise,frighten 等通常用其过去分词形式来修饰人,用 -ing 形式来修饰物.。   (3) The book is interesting and I"m interested in it. 这本书很有趣,我对它很感兴趣。当过去分词作为定语  作定语的过去分词相当于形容词,其逻辑主语就是它所修饰的名词.及物动词的过去分词作定语,既表被动又表完成;不及物动词的过去分词作定语,只表完成。   1. 过去分词用作定语,如果是单个的,常置于其所修饰的名词之前。   We must adapt our thinking to the changed conditions. 我们必须使我们的思想适应改变了的情况。   2. 过去分词短语用作定语时,一般置于其所修饰的名词之后,其意义相当于一个定语从句,但较从句简洁,多用于书面语中。   The concert given by their friends was a success.他们朋友举行的音乐会大为成功。   3.过去分词短语有时也可用作非限制性定语,前后常有逗号。   The meeting,attended by over five thousand people,welcomed the great hero. 他们举行了欢迎英雄的大会,到会的有五千多人。   4. 用来修饰人的过去分词有时可以转移到修饰非人的事物,这种过去分词在形式上虽不直接修饰人,但它所修饰的事物仍与人直接有关。   The boy looked up with a pleased expression. 男孩带着满意的表情举目而视。当过去分词作为状语  1. 过去分词作状语表示被动的和完成的动作。   (1) Written in a hurry,this article was not so good! 因为写得匆忙,这篇文章不是很好。   【注意】written 为过去分词作状语,表示这篇文章是被写的,而且已经被写. 值得注意的是,有些过去分词因来源于系表结构,作状语时不表被动而表主动.这样的过去分词及短语常见的有: lost (迷路); seated (坐); hidden (躲); stationed (驻扎); lost / absorbed in (沉溺于); born (出身于); dressed in (穿着); tired of (厌烦)。   (2) Lost / Absorbed in deep thought,he didn"t hear the sound.因为沉溺于思考之中,所以他没听到那个声音。   2. 过去分词作状语时其逻辑主语为主句的主语,此时应注意人称一致;   (1) Given another hour,I can also work out this problem.   再给我一个小时,我也能解这道题.(given 为过去分词作状语,它的逻辑主语为主句主语 I,即 I 被再给一个小时。)   (2)_ Seen from the top of the hill,the city looks more beautiful to us.   从山顶看城市,城市显得更漂亮。(seen 为过去分词作状语,表"被看",由语境可知,它的逻辑主语必须是城市,而不是"我们",因为"我们"应主动看城市。)   【注意】如果过去分词作状语时,前面再加逻辑主语,主句的主语就不再是分词的逻辑主语,这种带逻辑主语的过去分词结构实际上属于独立主格结构。   (1) The signal given,the bus started. 信号一发出,汽车就开动了。(the signal 是 given 的逻辑主语,因此主句主语 the bus 就不是given 的逻辑主语。   (2) Her head held high,she went by. 她把头昂得高高地从这儿走了过去。(her head 是 held high 的逻辑主语,因此主句主语 she 就不再是held high 的逻辑主语。)   3. 过去分词作状语来源于状语从句.   (1) Caught in a heavy rain,he was all wet. 因为淋了一场大雨,所以他全身湿透了。 (caught in a heavy rain 为过去分词短语作原因状语,它来源于原因状语从句Because he was caught in a heavy rain.)   (2)_Grown in rich soil,these seeds can grow fast. 如果种在肥沃的土壤里,这些种子能长得很快。( grown in rich soil 为过去分词作条件状语,它来源于条件状语从句If these seeds are grown in rich soil.   【注意】状语从句改成过去分词作状语时有时还可保留连词,构成"连词+过去分词"结构作状语。   When given a medical examination,you should keep calm. 当你做体格检查时要保持镇定。   4. 过去分词作状语的位置.过去分词可放在主句前作句首状语,后面有逗号与主句隔开;也可放在主句后面,前面有逗号与主句隔开。   He stood there silently,moved to tears. = Moved to tears,he stood there silently. 他静静地站在那里,被感动得热泪盈眶。当过去分词作为宾语补主语  (一)能够接过去分词作宾补的动词有以下四类:   1. 表示感觉或心理状态的动词.如:see,watch,observe,look at,hear,listen to,feel,notice,think等。   (1) I heard the song sung in English. 我听到有人用英语唱过这首歌。(过去分词sung的动作显然先于谓语动作heard;)   (2)_He found his hometown greatly changed. 他发现他的家乡变化很大。(过去分词changed的动作显然先于谓语动作found)   2. 表示"致使"意义的动词.如:have,make,get,keep,leave等。   (1) I"ll have my hair cut tomorrow. 明天我要理发。   (2) He got his tooth pulled out yesterday. 他昨天把牙拔了。   (3) Don"t leave those things undone. 要把那些事情做完。   3. 表示思维活动的动词如consider, know, think等后。如:   (1) I consider the matter settled. 我认为这件事解决了。   (2) I thought myself wronged somehow in the bargain. 我认为自己在这场交易中有受愚弄了。   4. 表示爱憎,意愿的动词如want, wish, like, hate等后。如:   (1) I wanted two tickets reserved. 我要预定两张机票。   (2) He didn"t wish it mentioned. 他不愿这事被提起。   【注意】过去分词所表示的动作一定和宾语有逻辑上的动宾关系。   (二)使役动词have接过去分词作宾补有两种情况。   1. 过去分词所表示的动作由他人完成。   He had his money stolen.他的钱给偷了。(被别人偷去了)   2. 过去分词所表示的动作由句中的主语所经历.如: He had his leg broken.他的腿断了。 (自己的经历)with +宾语+过去分词"的结构  此结构中,过去分词用作介词with的宾语补足语.这一结构通常在句中作时间,方式,条件,原因等状语。   (1) The murderer was brought in,with his hands tied behind his back. 凶手被带进来了,他的双手被绑在背后。(表方式)   (2) With water heated,we can see the steam. 水一被加热,我们就会看到水蒸气。(表条件)   (3) With the matter settled,we all went home. 事情得到解决,我们都回家了。(表原因)   (4)_She stood in front of him,with her eyes fixed on his face. 她站在他面前,眼睛注视着他。   (5) He stood for an instant with his hand still raised. 他仍然举着手站了一会儿。过去分词不规则变化表编辑本段过去分词不规则变化表  一、A—A—A型,即原形、过去式和过去分词三者都相同。(共7个)   cost—cost—cost cut—cut—cut hit—hit—hit hurt—hurt—hurt let—let—let put—put—put read—read—read   二、A—B—B型,即过去式、过去分词相同。(共41个)   1.过去式和过去分词都含有 -ought。(4个)   bring—brought—brought buy—bought—bought think—thought—thought fight-fought-fought   2.词尾有-ild,-end时,只需把d变为t。(4个)   build—built—built lend—lent— lent send—sent—sent spend—spent— spent   3.过去式、过去分词都含有 -aught。(2个)   catch—caught—caught teach—taught—taught   4.把-eep、-eel变为-ept、-elt。(4个)   keep—kept—kept sleep—slept—slept sweep— swept—swept   5.把-ell变为-old。(2个)   tell—told—told sell—sold—sold   6.把-ell、-ill变为-elt或-ilt。(4个)   smell—smelt—smelt spell—spelt—spelt feel—felt— felt spill—spilt—spilt   7.把-eed、-ead、-eet变为-ed或-et。(4个)   feed-fed-fed lead-led-led speed-sped-sped meet-met-met   7.过去式、过去分词都在原形词尾加t。(3个)   learn—learnt—learnt mean—meant—meant spoil—spoilt—spoilt   8.过去式、过去分词词尾去y变-id(4个)   say—said—said pay—paid—paid lay—laid—laid hear—heard—heard   9.改变元音字母。(11个)   meet—met—met get—got—got sit—sat—sat find—found—found hold—held—held spit—spat—spat shine—shone—shone win—won—won hang—hung—hung dig— dug—dug lose—lost—lost   10.改变辅音字母。(1个)   make—made—made   11.改变元、辅音字母。(4个)   leave—left—left stand—stood—stood have(has)— had—had understand—understood—understood   三、A—B—C型,即原形、过去式、过去分词都不相同。(共37个)   1.i—a—u变化。(7个)   begin—began—begun drink—drank—drunk sing— sang—sung ring—rang—rung swim—swam—swum sink— sank—sunk spring-sprang-sprung   2.词尾为-ow,-aw时,过去式将其变为-ew,过去分词在其原形后加n。(5个)   blow—blew—blown draw—drew—drawn grow— grew—grown know—knew—known throw—threw—thrown(show除外)   3.词尾为“i+辅(1个)+e”,过去式将i变为o,过去分词多在原形后加n,若那个辅音字母为d或t,须双写d或t后加n。(4个)(give,hide除外)   drive—drove—driven write—wrote—written ride— rode—ridden rise—rose—risen   4.过去分词在过去式后加n。(1个)   wake—woke— woken   5.过去分词由过去式加-ten构成。(2个)   get-got-gotten forget—forgot—forgotten   6.过去分词由原形加(e)n构成。(6个)   be—was(were)—been eat—ate—eaten fall—fell—fallen give—gave—given see—saw—seen hide—hid—hidden(hid)   7.词尾为-ake时,过去式将其变为-ook,过去分词在原形词后加-n。(2个)   take—took—taken mistake—mistook—mistaken   8.原形、过去式和过去分词都不相同。(6个)   do—did—done fly—flew—flown go—went—gone lie—lay—lain show—showed—shown wear—wore—worn   9.词尾为-eak时,过去式将其变为-oke,过去分词在原形词后加-n。(2个)   break—broke—broken speak—spoke—spoken   10.词中间为“oo+辅(1个)+e”或“ee+辅(1个)+e”,过去式将oo、ee变为o,过去分词在原形词后加-n。(2个)   choose—chose—chosen freeze—froze—frozen   四、A—A—B型,即过去式和原形相同。(1个)   beat—beat—beaten   五、A—B—A型,即过去分词和原形相同。(3个)   1.词中间为“o+辅(1个)+e”时,过去式将o变为a。(2个)   come—came—come become—became—become   2.u—a—u变化。(1个)   run— ran—run   六、情态动词型,只有原形和过去式,没有过去分词。(4个)   can—could may—might will—would shall—should   动词原形 过去式 过去分词   arise arose arisen   awake awoke/awaked awoken   be was/were been   bear bore borne(携带)/born(出生)   beat beat beaten   become became become   begin began begun   befall befell befallen   bend bent bent   bet bet bet   bind bound bound   bite bit bitten/bit   bleed bled bled   blend blended blent   bless blessed blest   blow blew blown   break broke broken   breed bred bred   bring brought brought   broadcast broadcast/broadcasted broadcast/broadcasted   build built built   burn burnt/burned burnt/burned   burst burst burst   buy bought bought   cast cast cast   catch caught caught   choose chose chosen   cleave clove/cleft cloven/cleft   cling clung clung   clothe clothed/clad clothed/clad   come came come   cost cost cost   creep crept crept   crow crowed/crew crowed   cut cut cut   dare dared/durst dared   deal dealt dealt   dig dug dug   do did done   draw drew drawn   dream dreamt/dreamed dreamt/dreamed   drink drank drunk   drive drove driven   dwell dwelt dwelt   eat ate eaten   fall fell fallen   feed fed fed   feel felt felt   fight fought fought   find found found   flee fled fled   fling flung flung   fly flew flown   forbid forbade/forbad forbidden   forecast forecast/forecasted forecast/forecasted   forget forgot forgotten   forgive forgave forgiven   freeze froze frozen   gainsay gainsaid gainsaid   get got gotten   gild gilded/gilt gilded   gird girded/girt girded/girt   give gave given   go went gone
2023-07-18 17:26:082

动词的过去分词怎么写?

还有好多特殊的 比如done.
2023-07-18 17:26:174

动词变过去分词的时候什么样的词最后一个字母要双写

重读闭音节,一个辅音字母结尾即:1.元音字母非字母本音的音节重读2.一个(不是两个、三个)辅音字母结尾
2023-07-18 17:26:322

现在分词变化规则是什么?

现在分词变化规则如下:1、 一般在词尾加-ing(一般-ing)。例如: going,playing,knowing。2、 以不发音的字母e结尾,先去e再加-ing。例如:making,arriving,coming。3、 以重读闭音节结尾,且词尾只有一个辅音字母时,先双写这个辅音字母,再加-ing(重闭单辅先双写)。例如:running,stopping,preferring。4、 以-ie结尾,先将-ie改成y,再加-ing。例如:tying,dying,lying。口诀:现在进行ing,以e 结尾要去e,除去几个特殊词,系住tie-tying死去die-dying要躺下lie-lying,直接ie变成y。现在分词的用法现在分词和过去分词作定语,其逻辑主语都是它们所修饰的词。被修饰词和动词之间表“主动关系”用现在分词,表“被动关系”用过去分词。现在分词作定语,表示主语的性质、特征等,过去分词作定语,表示主语的状态或者内心感受等。现在分词和过去分词作状语,其逻辑主语是句子的主语,表主动关系时用现在分词,表被动关系时,用过去分词。
2023-07-18 17:26:401

英语的过去分词和过去式的区别是什么?

过去式和过去分词最主要的区别是:过去分词表的意义是被动或完成。 而过去式和过去分词最主要的区别是:过去式是一个动词,而过去分词是一个动词的非谓语形式,相当于一个形容词或副词1、过去式是一个动词,单独作谓语。不能与助动词、情态动词连用。它的词性与动词的第三人称单数一样。2、过去分词是动词的一种非谓语形式,也叫非限定性动词。
2023-07-18 17:27:0910

英语中什么时候用过去分词,什么时候用过去式

过去式不明思议就是发生在过去的事情比如我昨天去了公园就是iwenttotheparkyesterday。过去式应该很容易理解。过去分词有多种用法主要用于完成时中在完成时中就是已经完成的事情并且对现在可能有什么影响的事情现在完成时是have/has+done过去完成时是had+done
2023-07-18 17:28:026

过去分词变化规则

规则变化是与过去式相同,只有不规则变化才会有+en或+n的情况,只不过这种情况在不规则变化中比较常见罢了。
2023-07-18 17:28:302

常用不规则过去式和过去分词的英语单词有哪些?

初中英语中一些常用的不规则动词变化介绍如下:   一、原形、过去式和过去分词的词形和读音都相同的单词,结尾字母一般是t或d.如:   cut-cut-cut, hit-hit-hit, put-put-put, cost-cost-cost, let-let-let, shut-shut-shut, set-set-set, hurt-hurt-hurt, spread-spread-spread   特殊:动词read的过去式和过去分词虽然词形与原形一致,read-read-read,但发音分别是[ri:d]-[red]-[red].   二、有些动词的过去分词与原形是一样的.如:   come-came-come, become-became-become, run-ran-run, overcome-overcame-overcome   三、有些动词的过去式和过去分词相同.如:   1. 把单词结尾的字母d改为t.如:   lend-lent-lent, spend-spent-spent, send-sent-sent   2. 改变单词中间元音字母.如:   sit-sat-sat, win-won-won, shine-shone-shone, hold-held-held   3. 以eep结尾的动词,把eep改为ept.如:   keep-kept-kept, sleep-slept-slept, sweep-swept-swept   4. 过去式和过去分词都以augh或ough结尾的动词.如:   buy-bought-bought, fight-fought-fought, think-thought-thought, bring-brought-brought, teach-taught-taught, catch-caught-caught   5. 有的以ay结尾的动词,在过去式和过去分词中把ay变成aid.如:   say-said-said, lay-laid-laid, pay-paid-paid   6. 另有一些其它形式的变化.如:   have-had-had, learn-learnt-learnt, leave-left-left, lose-lost-lost, make-made-made, meet-met-met, feel-felt-felt   四、有些动词原形中含有字母i,在过去式中变i为a,在过去分词中变i为u.如:   五、以字母ow或aw结尾的动词,在变成过去式时,通常把元音字母变成e,在变成过去分词时,通常只在词尾加n.如:   blow- blew- blown, draw-drew-drawn, grow-grew-grown, throw-threw-thrown, know-knew-known   六、有些动词的过去分词是在原形词尾加n或en,变成以en结尾的单词.如:   rise-rose-risen, give-gave-given, take-took-taken, fall-fell-fallen, drive-drove-driven, eat-ate-eaten   特殊: write-wrote-written, speak-spoke-spoken, ride-rode-ridden, get-got-gotten
2023-07-18 17:28:411

正常的变过去式和过去分词是在动词后加什么啊? 都是加ed么?还是不一样?

动词的过去式和过去分词变化规则有以下几条: 规则动词通常是在动词后加-ed构成, 以e结尾的动词后加-d, 以辅音字母加y结尾的动词,把 y 改成 i 再加 ed, 不规则动词变化不同,需特殊记忆.
2023-07-18 17:28:531

过去分词结构应该是什么样子的??规则的动词,它的后面应该是加ed 还是en后成为过去分词分词??

过去分词结构就是规则动词加ed的结构。
2023-07-18 17:29:012

正常的变过去式和过去分词是在动词后加什么啊? 都是加ed么?还是不一样?

动词的过去式和过去分词变化规则有以下几条: 规则动词通常是在动词后加-ed构成, 以e结尾的动词后加-d, 以辅音字母加y结尾的动词,把 y 改成 i 再加 ed, 不规则动词变化不同,需特殊记忆.
2023-07-18 17:29:231

动词过去分词和 现在分词的变化规则

过去分词有特殊的不规则动词,需要背,规则动词直接加ed现在分词都是后面加ing
2023-07-18 17:29:392

hang 的过去式和过去分词是什么

hunghanged过去式和现在分词都一样,两种意思都可以用。 希望这些可以帮到你。
2023-07-18 17:30:463

过去式过去分词变化规则

过去式和过去分词是英语中表示过去时间的两种形式,它们的变化规则有一些共同之处,但也有一些不同,具体如下:一、一般规则1,对于大多数动词,过去式的构成是在动词原形后面加上-ed或-d。2,过去分词的构成也是在动词原形后面加上-ed或-d。三、双写结尾字母规则(一)如果动词原形以一个辅音字母结尾,并且重读音节在最后一个音节之前,过去式和过去分词的构成是双写这个辅音字母,然后再加上-ed。例如:stop→stopped;plan→planned(二)抛弃字母e规则:1,如果动词原形以字母e结尾,过去式的构成是去掉末尾的e,然后再加上-ed。2,过去分词的构成是去掉末尾的e,然后再加上-ed。例如:love→loved;dance→danced四、变元音规则1,如果动词原形以辅音字母+y结尾,过去式的构成是将y变为i,然后再加上-ed。2,过去分词的构成是将y变为i,然后再加上-ed。例如:carry→carried;study→studied五、不规则动词有一些常用的动词的过去式和过去分词形式是不规则的,需要单独记忆。例如:go→went→gone;be→was/were→been六、总结过去式和过去分词的构成有一定的规律可循,大多数情况下是在动词原形后面加上-ed或-d;但也有例外,比如双写结尾字母、抛弃字母e、变元音等。此外,还有一些常用动词的过去式和过去分词形式是不规则的,需要特别记忆。七、拓展知识现在进行时和现在分词的构成规则与过去式和过去分词的规则相似。现在进行时的构成是在动词原形后面加上-ing;现在分词的构成也是在动词原形后面加上-ing。
2023-07-18 17:31:171

动词变化规则 动词的三单 过去式 过去分词 现在分词 的变化规则

动词的变化规则及发音规律 一, 动词第三人称单数的变化规则及发音规律 动词原形变第三人称单数的规则与发音规律同名词单数变复数大致相同,请认真观察. 1、大多数动词在词尾加“S”在清辅音后发音为[s],在浊辅音及元音后发音为 [z].如: ①stop-stops [s] ; make-makes [s] ②read-reads [z] ; play-plays [z] 2、以辅音字母加“y”结尾的,要先将“y”变为“i”,然后在加“es”读[iz] 如: fly-flies [z]; carry-carries [z] study-studies [z]; worry-worries 3、以“s, x, ch, sh”结尾的,在词尾加“es”,发音为[iz] 如: teach-teaches [iz]; watch-watches [iz] 4、以“o”结尾的动词,加“es”,读[z] 如: go-goes [z] do-does [z] 下面几个动词变为单数时,原词的元音部分的发音发生了较大的变化,请注意记忆. 如: 1、do [du:]-does [dz] 2、say [sei]-says [sez] 以不发音字母“e”结尾的开音节词,如果尾音是[s],[z]时,加“s”后字母“e”发音, 与所加“s” 一起读做[iz]. 如: close-closes [iz] 二、对比词形变化中原词词尾变化之异同: 变“y”为“”现象 双写最后辅音字母现象 例词: ①baby-babies ②carry-carries ③study-studying 二,规则动词的过去式变化如下: 一般情况下,动词词尾加 -ed ,如: worked played wanted acted 以不发音的 -e 结尾动词,动词词尾加 -d,如: lived moved decided declined hoped judged raised wiped 以辅音字母 + y结尾的动词,把-y变为-i 再加-ed,如: studied tried copied justified cried carried embodied emptied 以一个辅音字母结尾的重读闭音节动词,双写词尾辅音字母,再加 -ed,如: stopped begged fretted dragged dropped planned dotted dripped 注:不规则动词的过去式变化规律性不强,须多加记忆. go - went make - made get - got buy - bought come - came fly-flew 动词过去式,过去分词不规则变化 AB型 can could shall should will would may might AAA型 cost cost cost cut cut cut hit hit hit hurt hurt hurt let let let must must must put put put set set set shut shut shut read read read AAB型 beat beat beaten ABA型 become became become come came come run ran run ABB型 bring brought brought buy bought bought think thought thought catch caught caught teach taught taught build built built lend lent lent send sent sent spend spent spent dig dug dug hang hung hung feel felt felt keep kept kept sleep slept slept sweep swept swept leave left left smell smelt smelt spill spilt spilt lay laid laid pay paid paid say said said sell sold sold tell told told sit sat sat spit spat spat stand stood stood understand understood understood learn learnt learnt mean meant meant spoil spoilt spoilt shine shone shone win won won have had had make made made hear heard heard find found found hold held held ABC型 begin began begun drink drank drunk ring rang rung sing sang sung sink sank sunk swim swam swum blow blew blown fly flew flown grow grew grown know knew known throw threw thrown draw drew drawn show showed shown break broke broken choose chose chosen forget forgot forgotten freeze froze frozen speak spoke spoken wake woke woken drive drove driven eat ate eaten fall fell fallen give gave given hide hid hidden ride rode ridden rise rose risen take took taken mistake mistook mistaken write wrote written am,is was been are were been do did done go went gone lie lay lain see saw seen wear wore worn 易错型 show showed shown draw drew drawn fall fell fallen feel felt felt hold held held help helped helped think thought thought thank thanked thanked take took taken talk talked talked get got got forget forgot forgotten meet met met mean meant meant hit hit hit hide hid hidden ring rang rung bring brought brought eat ate eaten beat beat beaten lie lay lain lay laid laid find found found found founded founded buy bought bought bring brought brought learn learnt learnt hear heard heard 三, 动词过去式和过去分词的变化规则 动词过去式和过去分词有规则变化和不规则变化两种. 1) 规则变化 情况 例词 读音与说明 动词原形 过去式 过去分词 一般在动词原形后加-ed look call open need looked called opened needed looked called opened needed ①-ed在清辅音音素后 发音为〔t〕,在浊辅音后发音为〔d〕,在元音后发音也为[d] ②-ed在〔t]、〔d〕 后发音为[id] ③但fix的过去式和过去 分词x不双写,为fixed. 以-e结尾的动词加-d move phone phoned hope hoped agree agreed 以辅音字母加y结尾的动词,变y为i, 再加-ed study carry try studied studied carried studied carried tried 以原音字母加y结尾的词,直接加-ed play enjoy stay enjoyed stayed play played 末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加-ed stop plan fit stopped planned fitted stopped planned fitted 以-r音节结尾的词,双写r字母, 再加-ed prefer refer preferred referred preferred referred 2) 不规则变化 英语中有些动词的过去式和过去分词形式变化不规则,可分为五种情况. 1.动词原形、过去式和过去分词完全同形. 例: 原形 过去式 过去分词 cut(切) hit(打) cast(扔) hurt(伤害) put(放) let(让) shut(关) cost(花费) set(放) rid(清除) cut hit cast hurt put let shut cost set rid cut hit cast hurt put let shut cost set rid 2.过去式与过去分词完全同形. 例: 原形 过去式 过去分词 find(找到) pay(支付) leave(离开) lend(借出) meet(遇见) keep(保持) lose(丢失) teach(教) sit(坐) lead(引导) win(赢)除) found paid left lent met kept lost taught sat led won found paid left lent met kept lost taught sat led won 3.动词原形与过去分词同形 例: 原形 过去式 过去分词 come(来) run(跑) become(成为) came ran became come run become 4.动词原形、过去式、过去分词形式完全不同. 例: 原形 过去式 过去分词 give(给) fly(飞) drink(喝) see(看见) go(去) know(知道) wear(穿) speak(说) gave flew drank saw went knew wore spoke given flown drunk seen gone known worn spoken 5.过去式和过去分词有两种形式 例: 原形 过去式 过去分词 burn(燃烧) burned burnt burned burnt learn(学习) learned learnt learned learnt smell(闻) smelled smelt smelled smelt spell (拼写) spelled spelt spelled spelt shine (照射) shined shone shined shone leap (跳) leaped leapt leaped leapt 提示 a. beat的过去式与原形同形: 比:beat(打击) beat(过去式) beaten(过去分词) b. lie有规则变化和不规则变化两种,含义不同 比:lie lied, lied(说谎) lay, lain(躺,位于) c. hang 有规则变化和不规则变化两种,含义不同 比:hang hanged, hanged(处绞刑) hung, hung(挂,吊) d. welcome(欢迎)一词是规则动词,不可误用为不规则动词 比:welcome welcomed, welcomed(正) welcome, welcome(误) e.不要将不规则动词误用为规则动词 比:hit(打) hit, hit(正) hitted, hitted(误) 四, 现在分词的变化规则 规则 动词原形 现在分词及发音 一般在动词原形词尾加-ing,-ing发音为 [iN] go push play carry going pushing playing carrying 以不发音的e结尾的动词,先去掉e,再加-ing take write leave taking writing leaving 重读闭音节结尾的动词,如果词尾只有一个辅音字母,要将该辅音字母双写,再加-ing cut stop fit begin forget cutting stopping fitting beginning forgetting 以ie结尾的动词,要把ie改为y,再加-ing lie die tie lying dying tying
2023-07-18 17:31:441

英语过去分词变化的规律

英语不规则动词的变化规律一、A—A—A型,即原形、过去式和过去分词三者都相同。(共9个) cost—cost—cost cut—cut—cut hit—hit—hit hurt—hurt—hurt let—let— let put—put—put read—read—read set—set—set shut—shut—shut 二、A—B—B型,即过去式、过去分词相同。(共41个) 1 过去式和过去分词都含有 -ought。(3个) bring—brought—brought buy— bought—bought think—thought— thought 2 词尾有-ild,-end时,只需把d变为t。(4个) build—built—built lend—lent— lent send—sent—sent spend—spent— spent 3.过去式、过去分词都含有 -aught。(2个) catch—caught—caught teach—taught—taught 4.把-eep变为-ept。(3个) keep—kept—kept sleep—slept—slept sweep— swept—swept 5 把-ell变为-old。(2个) tell—told—told sell—sold—sold 6.过去式、过去分词都含有-elt或-ilt。(4个) smell—smelt—smelt spell—spelt—spelt feel—felt— felt spill—spilt—spilt 7.过去式、过去分词都在原形词尾加t。(3个) learn—learnt—learnt mean—meant—meant spoil—spoilt—spoilt 8.过去式、过去分词词尾是d。(4个) say—said—said pay—paid—paid lay—laid—laid hear—heard—heard 9.改变元音字母。(11个) meet—met—met get—got—got sit—sat—sat find— found—found hold—held—held spit—spat—spat shine— shone—shone win—won—won hang—hung—hung dig— dug—dug lose—lost—lost 10.改变辅音字母。(1个) make—made—made 11 改变元、辅音字母。(4个) leave—left—left stand—stood—stood have(has)— had—had understand—understood—understood 三、A—B—C型,即原形、过去式、过去分词都不相同。(共35个) 1 i—a—u变化。(6个) begin—began—begun drink—drank—drunk sing— sang—sung ring—rang—rung swim—swam—swum sink— sank—sunk 2 词尾为-ow,-aw时,过去式将其变为-ew,过去分词在其原形后加n。(5个) blow—blew—blown draw—drew—drawn grow— grew—grown know—knew—known throw—threw—thrown(show除外) 3 词尾为“i+辅(1个)+e”,过去式将i变为o,过去分词多在原形后加n,若那个辅音字母为d或t,须双写d或t后加n。(4个)(give,hide除外) drive—drove—driven write—wrote—written ride— rode—ridden rise—rose—risen 4 过去分词在过去式后加(e)n。(5个) break—broke—broken choose—chose—chosen freeze—froze—frozen speak—spoke—spoken wake—woke— woken 5 过去分词由过去式加-ten构成。(1个) forget—forgot—forgotten 6 过去分词由原形加(e)n构成。(6个) be—was(were)—been eat—ate—eaten fall—fell—fallen give—gave—given see—saw—seen hide—hid—hidden(hid) 7 词尾为-ake时,过去式将其变为-ook,过去分词在原形词后加-n。(2个) take—took—taken mistake—mistook—mistaken 8 原形、过去式和过去分词都不相同。(6个) do—did—done fly—flew—flown go—went—gone lie—lay—lain show—showed—shown wear—wore—worn 四、A—A—B型,即过去式和原形相同。(1个) beat—beat—beaten 五、A—B—A型,即过去分词和原形相同。(3个) come—came—come become—became—become run— ran—run 六、情态动词型,只有原形和过去式,没有过去分词。(4个) can—could may—might will—would shall—should
2023-07-18 17:31:531

过去分词不规则变化表

1、ow过去o变e,过去分词加个n。2、ake过去多半变成ook,过去分词加个n。3、in,im过去i变a,过去分词i变u。4、以辅音字母加y结尾的动词,变y为i,,再加-ed。5、一般在动词原形后加-ed 原形。
2023-07-18 17:32:001

有不规则动词变化表,那规则的动词的过去分词该怎么变呢????变过去式和过去分词又有什么区别呢?

一般的过去式和过去分词直接加ed.过去时用在一般过去时,过去分词用在完成时或被动句中。
2023-07-18 17:32:114

动词过去分词的规则变化规律和不规则变化

规则动词的过去式变化如下:一般情况下,动词词尾加-ed,如:workedplayedwantedacted以不发音的-e结尾动词,动词词尾加-d,如:livedmoveddecideddeclinedhopedjudgedraisedwiped以辅音字母+y结尾的动词,把-y变为-i再加-ed,如:studiedtriedcopiedjustifiedcriedcarriedembodiedemptied以一个辅音字母结尾的重读闭音节动词,双写词尾辅音字母,再加-ed,如:stoppedbeggedfretteddraggeddroppedplanneddotteddripped注:不规则动词的过去式变化规律性不强,须多加记忆。go-wentmake-madeget-gotbuy-boughtcome-camefly-flew动词过去式,过去分词不规则变化AB型cancouldshallshouldwillwouldmaymightAAA型costcostcostcutcutcuthithithithurthurthurtletletletmustmustmustputputputsetsetsetshutshutshutreadreadreadAAB型beatbeatbeatenABA型becomebecamebecomecomecamecomerunranrunABB型bringbroughtbroughtbuyboughtboughtthinkthoughtthoughtcatchcaughtcaughtteachtaughttaughtbuildbuiltbuiltlendlentlentsendsentsentspendspentspentdigdugdughanghunghungfeelfeltfeltkeepkeptkeptsleepsleptsleptsweepsweptsweptleaveleftleftsmellsmeltsmeltspillspiltspiltlaylaidlaidpaypaidpaidsaysaidsaidsellsoldsoldtelltoldtoldsitsatsatspitspatspatstandstoodstoodunderstandunderstoodunderstoodlearnlearntlearntmeanmeantmeantspoilspoiltspoiltshineshoneshonewinwonwonhavehadhadmakemademadehearheardheardfindfoundfoundholdheldheldABC型beginbeganbegundrinkdrankdrunkringrangrungsingsangsungsinksanksunkswimswamswumblowblewblownflyflewflowngrowgrewgrownknowknewknownthrowthrewthrowndrawdrewdrawnshowshowedshownbreakbrokebrokenchoosechosechosenforgetforgotforgottenfreezefrozefrozenspeakspokespokenwakewokewokendrivedrovedriveneatateeatenfallfellfallengivegavegivenhidehidhiddenrideroderiddenriseroserisentaketooktakenmistakemistookmistakenwritewrotewrittenam,iswasbeenarewerebeendodiddonegowentgonelielaylainseesawseenwearworeworn易错型showshowedshowndrawdrewdrawnfallfellfallenfeelfeltfeltholdheldheldhelphelpedhelpedthinkthoughtthoughtthankthankedthankedtaketooktakentalktalkedtalkedgetgotgotforgetforgotforgottenmeetmetmetmeanmeantmeanthithithithidehidhiddenringrangrungbringbroughtbroughteatateeatenbeatbeatbeatenlielaylainlaylaidlaidfindfoundfoundfoundfoundedfoundedbuyboughtboughtbringbroughtbroughtlearnlearntlearnthearheardheard
2023-07-18 17:33:001

八年级下册英语过去分词变化规律

人教版初中英语动词不规则变化表(完整版)不规则动词分为几个类型,每个类型中又分若干组,每组中各词变化形式的共同点,以帮助记忆。 1. A---A---A型(现在式、过去式和过去分词同形) 动词原形(现在式)过去式 过去分词cost cost cost 花费cut cut cut 割,切hit hit hit 打let let let 让put put put 放下read read read 读hurt hurt hurt 伤 2. A---A---B型(现在式和过去式同形)动词原形(现在式)过去式 过去分词beat beat beaten 打 3. A---B---A型(现在式和过去分词同形) 动词原形(现在式)过去式 过去分词come came come 来become became become 变run ran run 跑 4. A ---B ---B型 (1)在动词原形后加一个辅音字母d或t构成过去式或过去分词。动词原形(现在式)过去式 过去分词burn burnt burnt 燃烧learn learned/learnt learned/learnt 学习mean meant meant 意思hear heard heard 听见 (2)把动词原形的最后一个辅音字母“d”改为“t” 构成过去式或过去分词。动词原形(现在式)过去式 过去分词build built built 建筑lend lent lent 借给lose lost lost 失去send sent sent 送spend spent spent 花费(3)其他动词原形(现在式)过去式 过去分词pay paid paid 付lay laid laid 下蛋say said said 说bring brought brought 带来buy bought bought 买think thought thought 想sleep slept slept 睡keep kept kept 保持sweep swept swept 扫stand stood stood 站understand understood understood 明白win won won 得胜shine shone/shined shone/shined 发光catch caught caught 抓住teach taught taught 教feel felt felt 觉得fight fought fought 战斗find found found 发现get got got/gotten 得到hang hanged/ hung hanged/hung 绞死 / 挂have had had 有hold held held 盛,握leave left left 离开make made made 制造meet met met 遇见sell sold sold 卖shoot shot shot 射击tell told told 告诉smell smelt/smelled smelt/smelled 嗅,闻sit sat sat 坐dig dug dug 挖5.A---B---C型(现在式、过去式和过去分词都不相同) (1)在动词原形后加-n或-en构成过去分词。动词原形(现在式)过去式 过去分词eat ate eaten 吃fall fell fallen 落下steal stole stolen 偷give gave given 给freeze froze frozen 冻结take took taken 拿see saw seen 看见write wrote written 写ride rode ridden 骑drive drove driven 驾驶throw threw thrown 抛,扔blow blew blown 吹grow grew grown 生长know knew known 知道fly flew flown 飞draw drew drawn 拉,绘画show showed shown 展示 (2)过去式加-n或-en构成过去分词。动词原形(现在式)过去式 过去分词speak spoke spoken 说话break broke broken 破碎,折断wake waked/ woke waked/waken 醒choose chose chosen 选择forget forgot forgotten 忘记(3)变单词在重读音节中的元音字母“i”分别为“a”(过去式)和“u”(过去分词)。动词原形(现在式)过去式 过去分词begin began begun 开始ring rang rung 按铃sing sang sung 唱sink sank sunk 沉swim swam swum 游泳drink drank drunk 饮(4)其他不规则动词的变化。动词原形(现在式)过去式 过去分词be(am, is) was/ were been 是be(are) were been 是do did done 做go went gone 去lie lay lain 躺wear wore worn 穿动词过去式和过去分词的变化规则动词过去式和过去分词有规则变化和不规则变化两种。1) 规则变化一般在动词原形后加-edcall called open opened need needed发音规则①-ed在清辅音音素后发音为〔t〕,在浊辅音后发音为〔d〕,在元音后发音也为[d] ②-ed在〔t]、〔d〕后发音为[id]注意但fix的过去式和过去分词x不双写,为fixed.2)以-e结尾的动词加-dphone phoned hope hoped agree agreed3)以辅音字母加y结尾的动词,变y为i,再加-edstudied studied carried carried try tried4)以原音字母加y结尾的词,直接加-edenjoy enjoyed stay stayed play played5)末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加-ed stopplan planned fit fitted stop stopped6)以-r音节结尾的词,双写r字母,再加-ed preferrefer referred prefer preferred
2023-07-18 17:33:081

英语的过去式和过去分词的变化规律是怎么样的

一、A—A—A型,即原形、过去式和过去分词三者都相同.(共9个) cost—cost—cost cut—cut—cut hit—hit—hit hurt—hurt—hurt let—let— let put—put—put read—read—read set—set—set shut—shut—shut 二、A—B—B型,即过去式、过去分词相同.(共41个) 1 过去式和过去分词都含有 -ought.(3个) bring—brought—brought buy— bought—bought think—thought— thought 2 词尾有-ild,-end时,只需把d变为t.(4个) build—built—built lend—lent— lent send—sent—sent spend—spent— spent 3.过去式、过去分词都含有 -aught.(2个) catch—caught—caught teach—taught—taught 4.把-eep变为-ept.(3个) keep—kept—kept sleep—slept—slept sweep— swept—swept 5 把-ell变为-old.(2个) tell—told—told sell—sold—sold 6.过去式、过去分词都含有-elt或-ilt.(4个) smell—smelt—smelt spell—spelt—spelt feel—felt— felt spill—spilt—spilt 7.过去式、过去分词都在原形词尾加t.(3个) learn—learnt—learnt mean—meant—meant spoil—spoilt—spoilt 8.过去式、过去分词词尾是d.(4个) say—said—said pay—paid—paid lay—laid—laid hear—heard—heard 9.改变元音字母.(11个) meet—met—met get—got—got sit—sat—sat find— found—found hold—held—held spit—spat—spat shine— shone—shone win—won—won hang—hung—hung dig— dug—dug lose—lost—lost 10.改变辅音字母.(1个) make—made—made 11 改变元、辅音字母.(4个) leave—left—left stand—stood—stood have(has)— had—had understand—understood—understood 三、A—B—C型,即原形、过去式、过去分词都不相同.(共35个) 1 i—a—u变化.(6个) begin—began—begun drink—drank—drunk sing— sang—sung ring—rang—rung swim—swam—swum sink— sank—sunk 2 词尾为-ow,-aw时,过去式将其变为-ew,过去分词在其原形后加n.(5个) blow—blew—blown draw—drew—drawn grow— grew—grown know—knew—known throw—threw—thrown(show除外) 3 词尾为“i+辅(1个)+e”,过去式将i变为o,过去分词多在原形后加n,若那个辅音字母为d或t,须双写d或t后加n.(4个)(give,hide除外) drive—drove—driven write—wrote—written ride— rode—ridden rise—rose—risen 4 过去分词在过去式后加(e)n.(5个) break—broke—broken choose—chose—chosen freeze—froze—frozen speak—spoke—spoken wake—woke— woken 5 过去分词由过去式加-ten构成.(1个) forget—forgot—forgotten 6 过去分词由原形加(e)n构成.(6个) be—was(were)—been eat—ate—eaten fall—fell—fallen give—gave—given see—saw—seen hide—hid—hidden(hid) 7 词尾为-ake时,过去式将其变为-ook,过去分词在原形词后加-n.(2个) take—took—taken mistake—mistook—mistaken 8 原形、过去式和过去分词都不相同.(6个) do—did—done fly—flew—flown go—went—gone lie—lay—lain show—showed—shown wear—wore—worn 四、A—A—B型,即过去式和原形相同.(1个) beat—beat—beaten 五、A—B—A型,即过去分词和原形相同.(3个) come—came—come become—became—become run— ran—run 六、情态动词型,只有原形和过去式,没有过去分词.(4个) can—could may—might will—would shall—should
2023-07-18 17:33:171

动词由原形变为过去分词的规则变化是怎样

动词过去式和过去分词的变化规则动词过去式和过去分词有规则变化和不规则变化两种。1)规则变化情况例词读音与说明动词原形过去式过去分词一般在动词原形后加-edlookcallopenneedlookedcalledopenedneededlooked[lukt]called[kC:ld]opened[5EupEnd]needed[ni:did]①-ed在清辅音音素后发音为〔t〕,在浊辅音后发音为〔d〕,在元音后发音也为[d]②-ed在〔t]、〔d〕后发音为[id]③但fix的过去式和过去分词x不双写,为fixed.以-e结尾的动词加-dmovephonehopeagreemovedphonedhopedagreedmoved[mu:vd]phoned[fEund]hoped[hEupt]agreed[E5^ri:d]以辅音字母加y结尾的动词,变y为i,再加-edstudycarrytrystudiedstudiedcarriedstudied[5stQdid]carried[5kArid]tried[traid]以原音字母加y结尾的词,直接加-edplayenjoystayplayedenjoyedstayedplayed[pleid]enjoyed[in5dVCid]stayed[steid]末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加-edstopplanfitstoppedplannedfittedstopped[stCpt]planned[plAnd]fitted[5fitid]以-r音节结尾的词,双写r字母,再加-edpreferreferpreferredreferredpreferred[prI`f:d]referred[ri5fE:]
2023-07-18 17:33:251

常用动词的过去式和过去分词表

英语动词过去式和过去分词表:如图所示英语动词过去式的变化规则规则动词的过去式变化如下:(1)一般情况下,动词词尾加 ed ,如:worked played wanted acted(2)以不发音的 e 结尾动词,动词词尾加 d,如:lived moved decided declined hoped judged raised wiped(3)以辅音字母 + y结尾的动词,把y变为i 再加ed,如:studied tried copied justified cried carried embodied emptied(4)以一个辅音字母结尾的重读闭音节动词,双写词尾辅音字母,再加 ed,如:stopped begged fretted dragged dropped planned dotted dripped不规则动词的过去式变化规律性不强,须多加记忆:go - went,make - made,get - got ,buy - bought ,come - came ,fly-flew ,is/am-was,are-were ,see-saw ,bring-brought,do-did,teach-taught, think-thought, say-said,sit-sat,put-put,grow-grew,take-took,catch-caught,co
2023-07-18 17:33:341

过去式与过去分词单词表(不规则)

过去试: 过去分词amareis waswere beenbear bore bornbeat beat beatenbecome became becomebegin began begunblow blew blownbreak broke brokenbring brought broughtbuild built builtburn burnt burntbuy bought boughtcan couldcatch caught caughtchoose chose chosencome came comecost cost costcut cut cutdig dug dugdo did donedraw drew drawndrink drank drunkdrive drove driveneat ate eatenfall fell fallenfeed fed fedfeel felt feltfight fought foughtfind found foundfly flew flownforget forgot forgettenfreeze froze frozenget got gotgive gave givengo went gonegrow grew grownhang hung hunghave had hadhear heard heardhide hid hiddenhit hit hithold held heldhurt hurt hurtkeep kept keptkneel knelt kneltknow knew knownlay laid laidlean leant leantleave left leftlet let letlie lay lainlose lost lostmake made mademay mightmean meant meantmeet meet metmelt melted meltedpay paid paidput put putread read readride rode riddenring rang rungrise rose risenrun ran runsay said saidsee saw seensell sold soldsend sent sentsew sewed sewnshake shook shakenshine shone shoneshow showed shownshut shut shutsing sang sungsink sank sunksit sat satsleep slept sleptsmell smelt smeltspeak spoke spokenspeed sped spedspell spelt speltspend spent spentspin spun spunspread spread spreadspring sprang sprungstand stood stoodsteal stole stolenstick stuck stucksweat sweated sweatedsweep swept sweptswim swam swumswing swung swungtake took takenteach taught taughttell told toldthink thought thoughtthrow threw thrownunderstand understood understoodwake woke wokenwear wore wornwin won wonwrite wrote written只有这些
2023-07-18 17:33:535

过去分词不规则变化表

过去分词不规则变化表如下:一、过去式与过去分词相同(1)AAA型1.bet 打赌 bet bet2.cast 抛 cast cast3.cost 花费 cost cost(2)XTT型1.bend 使弯曲 bent bent2.lend 借贷 lent lent3.mean 意思是 meant meant(3)ought/aught型1.buy 买 bought bought2.bring 拿来 brought brought3.catch 捕捉 caught caught(4)XDD型1.hear 听到 heard heard2.lay 放下,下蛋 laid laid3.lie 撒谎 lied lied(5)XOO型1.win 获胜 won won2.get 得到,变得 got got3.shoot 射击 shot shot(6)XUU型1.dig 挖 dug dug2.hang 悬挂,绞死 hung / hanged hung/ hanged3.stick 刺,粘贴 stuck stuck二、过去式与过去分词不同(1)XAU型1.drink 喝 drank dunk2.ring 打电话,响铃 rang rung3.run 跑 ran run(2)XN型1.draw 画,拉,拖 drew drawn2.fly 飞 flew flown3.grow 成长,种植 grew grown(3)XEN型1.write 书写 wrote written2.wake 叫醒 woke woken3.undertake 承担,从事 undertook undertaken(4)其它型1.become 变成 became become2.come 来 came come3.overcome 战胜;克服 overcame overcome
2023-07-18 17:34:091

找英文歌

【Anaesthesia】Maximilian Hecker强烈推荐 【Summer Days In Bloom】Maximilian Hecker力推!【i remember】郭采洁 我喜欢睡觉前听这首歌【Tommai mai rub sak tee】Lydia(泰语)听听这个泰国女孩的声音吧。 【Disguise】Lene marlin 【When You Say Nothing At All】Ronan Keating有个校内好友也推荐过呢。 【valder fields】Tamas Wells很柔。 【seven years】Norah Jones觉得她的声音像阳光打在身上一样舒服。【the saltwater room】Owl City有人说,这首歌有夏天的感觉,是挺清爽,力推! 【do you know】Enrique Iglesias (The Ping Pong Son)这首歌有乒乓球的声音,棒! 【touch my body】Mariah Carey玛利亚凯莉,神一样的女人。。 【I"m Yours】Jason Mraz; 【Solo】Kate Havnevik一定要听,节奏不是很快。 【my lucky day】Lene marlin ‘Everything will be ok"……因为这句我喜欢上这首歌。 【Unforgivable Sinner】Lene marlin前奏是辽大澡堂之歌。O(∩_∩)o… 【Sitting Down Here】Lene marlin 【whatever it takes】Lene marlin 【7 days】Craig David 【Beautiful Girls】Sean kingston这个还有歌女声版本 但还是喜欢这个版本。。 【so yesterday】Hilary Duff去年的这个时候就是在听这首歌,又找出来了。很好听哦~ 【to all the girls】Aaron Carter【Sealed With A Kiss Brian Hylan】乡村音乐 【someone"s watching over me】Hilary Duff这是她在电影《劲歌飞扬》里唱的。励志哦~ 【It"s Amazing】Jem 【I"m Gonna Getcha Good】Shania Twain 【Love Is Color-Blind】Sarah Connor有网友说之前没推荐她~她的歌都慢未完待续了~~:o(∩_∩)o...o(∩_∩)o...哈哈
2023-07-18 17:32:364

一光年到底等于多少米

光速299,792,458m/s乘以时间一年时间(秒)等于9460730472580800米
2023-07-18 17:32:422

推荐我一些很好听的英文歌曲

anyone of us,tailk
2023-07-18 17:32:445

好听的英文歌?谢谢,最好是男歌手,,

Babyface-Loneliness这是Babyface的经典歌曲,超好听JustinBieber-Baby,OneTime,FavoriteGirl这三首歌都很不错,是来自加拿大现在超红的16岁少年JustinBieber唱的Muse-SupermassiveBlackHole这首歌是来自英国著名的摇滚乐队Muse,这首也是国人相对比较熟悉的一首,因为是暮色的插曲,在歌曲中主唱MattewBellamy展现了华丽的假音
2023-07-18 17:32:272

一光年等于多少千米?多少米?

1光年=9460528404879.3588126千米=9,460,730,472,580,800米光年是长度单位,用来计量光在宇宙真空中沿直线传播了一年时间的距离,一般被用于衡量天体间的时空距离,“年”是时间单位,但“光年”虽有个“年”字却不是时间单位,而是天文学上一种计量天体时空距离的单位。宇宙中天体间的距离很远很远,如果采用我们日常使用的米、千米(公里)作计量单位,那计量天体距离的数字动辄十几位、几十位,很不方便。于是天文学家就创造了一种新的计量单位——光年,即光在真空中用去一年时间所走过的距离。距离=速度×时间,光速约为每秒30万千米(每秒299,792,458米),1光年为9,460,730,472,580,800米。读作:九千四百六十兆七千三百零四亿七千二百五十八万零八百米。扩展资料一、光年与天文学中其它常用长度单位的换算:距地球约110亿光年;一秒差距约等于3.26光年;一光年约等于63240天文单位。二、光年的实例1676年以前,人们普遍相信光的传播是不需要时间的。1676年,丹麦科学家O.C.罗默首先作出了光的传播需要时间的设想。1671年,罗默开始观测木星的卫星(木卫一)。他发现木星掩卫的时间(由木卫一躲到木星背对地球的一面开始到它再次出现在地球上可观测到的区域之间的时间间隔)并不是一个定值。当木星离地球较远时,掩卫过程所用的时间更长。1675年,法国的天文学家乔凡尼·多美尼科·卡西尼开始设想这种现象产生的原因可能是光的传播需要时间。然而,他在不久后就放弃了这个想法。当时担任卡西尼的科学助手的罗默则没有放弃。他坚持假设光的速度是有限的,并计算出以光的速度,要穿越相当于地球公转轨道直径的距离需要22分钟的时间。以今天的数据来看,他的结果等价于说光的速度是214000公里每秒(罗默当年对地球公转轨道的直径计算有误)。但是直到18世纪上半叶,主流科学界才逐渐接受了光速有限的想法。1728年,英国天文学家詹姆斯·布拉德雷给出了另一种测量光速的方法,得出光的速度大约是301000公里每秒。1838年,德国天文学家弗里德里希·威廉·贝塞尔首先使用“光年”一词,作为天文学测量上的单位。他测量出天鹅座61与地球之间的距离是10.3光年。太阳与最近的恒星半人马座α星相距43万亿千米,人类观察到的最远的星星,是这个数字的30多亿倍。这种情况下使用光年就容易多了,太阳到半人马座α星的距离为4.545光年,与最亮的恒星天狼星为8.6光年。与牛郎星和织女星的距离分别为16.63和26.3光年,与参宿七的距离为850光年,银河系的跨度达10万光年。目前人类探知的最遥远的星,距离地球已达150亿光年——人类观测到此光已是150亿年前的事情了。另外,为了方便起见,科学家把地球到太阳的平均距离定义为“1天文单位”。用这个单位来度量太阳系的距离就方便多了。太阳与地球的距离为1天文单位,与水星为0.4天文单位,与金星为0.7天文单位,与冥王星为40天文单位,等等。参考资料来源:百度百科—光年
2023-07-18 17:32:261

好听的英文歌,求推荐啊~~

everything will be all right.
2023-07-18 17:31:594