蕾哈娜的《爱如谎言》的歌词

是<<I have nothing>>。 演唱者: JYJ I Have Nothing Share my life, take me for what I am Cause I"ll never change all my colours for you Take my love, I"ll never ask for too much Just all that you are and everything that you do I don"t really need to look very much further I don"t want to have to go where you don"t follow I won"t hold it back again, this passion inside Can"t run from myself There"s nowhere to hide Don"t make me close one more door I don"t wanna hurt anymore Stay in my arms if you dare Or must I imagine you there Don"t walk away from me... I have nothing, nothing, nothing If I don"t have you, you you ,you, you You see through, right to the heart of me You break down my walls with the strength of you love I never knew love like I"ve known it with you Will a memory survive, one I can hold on to I don"t really need to look very much further I don"t want to have to go where you don"t follow I won"t hold it back again, this passion inside Can"t run from myself There"s nowhere to hide (Your love I"ll remember forever) Don"t make me close one more door I don"t wanna hurt anymore Stay in my arms if you dare Or must I imagine you there Don"t walk away from me... I have nothing, nothing, nothing Don"t make me close one more door I don"t wanna hurt anymore Stay in my arms if you dare Or must I imagine you there Don"t walk away from me... Don"t walk away from me... Don"t walk away from me... I have nothing, nothing, nothing If I don"t have you, you If I don"t have you Oh~~~ Oh~~~中文：I have nothing (我一无所有） i have nothing 一无所有 Share my life, take me for what I am 请你融入我的生活，快来认识纯真的我 Cause I"ll never change all my colours for you 我从没有在你面前掩饰什么 Take my love, I"ll never ask for too much 请你来爱我，我想知道也不多 Just all that you are and everything that you do 只想知道完全的你和每天都在做什么 I don"t really need to look very much further 我不需要考虑的更多 I don"t want to have to go where you don"t follow 也不会强迫自己去做什么 I won"t hold it back again, this passion inside 我不会再压抑自己内心的激情 Can"t run from myself 也不会再逃避自己的心 There"s nowhere to hide 因为我已经无处可逃 (Your love I"ll remember forever) 我将永远记得你的爱 Don"t make me close one more door 不要让我又再次退却 I don"t wanna hurt anymore 我并不想伤害任何人 Stay in my arms if you dare 如果害怕就躲到我怀里来 Or must I imagine you there 我一直告诉自己你就在我怀里 Don"t walk away from me... 千万别离开我 I have nothing, nothing, nothing If I don"t have you, you you ,you, you If I don"t have you 如果我失去了你， 如果我失去了你，你，你，你，你 我将一无所有 You see through, right to the heart of me 你已经看穿了我，直捣进我的心房 You break down my walls with the strength of you love 你用那坚韧的爱击碎了我的心墙 I never knew love like I"ve known it with you 以前不知道什么叫爱，是你让我明白 Will a memory survive, one I can hold on to 如果记忆可以永存，就让我来证明这点

Her name is Whitney Houston. Is this the song you wanted? This is one of her most famous songs.I Will Always Love You If IShould stayI would only be in your waySo I"ll goBut I knowI"ll think of you every step ofthe wayAnd I...Will alwaysLove you, oohhWill alwaysLove youYouMy darling youMmm-mmBittersweetMemoriesThat is all I"m taking with meSo good-byePlease don"t cryWe both know I"m not what youYou needAnd I...Will always love youI...Will always love youYou, ooh(Instrumental/Sax solo)I hopelife treats you kindAnd I hopeyou have all you"ve dreamed ofAnd I wish you joyand happinessBut above all thisI wish you loveAnd I...Will always love youI...Will always love you*Repeat*I, I will always loveYou....YouDarling I love youI"ll alwaysI"ll alwaysLoveYou..OoohOoohhh

i have nothing 一无所有 Share my life, take me for what I am 请你融入我的生活，快来认识纯真的我 Cause I"ll never change all my colours for you我从没有在你面前掩饰什么 Take my love, I"ll never ask for too much 请你来爱我，我想知道也不多 Just all that you are and everything that you do只想知道完全的你和每天都在做什么 I don"t really need to look very much further 我不需要考虑的更多 I don"t want to have to go where you don"t follow 也不会强迫自己去做什么 I won"t hold it back again, this passion inside 我不会再压抑自己内心的激情Can"t run from myself 也不会再逃避自己的心 There"s nowhere to hide 因为我已经无处可逃 (Your love I"ll remember forever) 我将永远记得你的爱Don"t make me close one more door 不要让我又再次退却I don"t wanna hurt anymore 我并不想伤害任何人 Stay in my arms if you dare 如果害怕就躲到我怀里来Or must I imagine you there 我一直告诉自己你就在我怀里 Don"t walk away from me... 千万别离开我 I have nothing, nothing, nothing If I don"t have you, you you ,you, you If I don"t have you 如果我失去了你， 如果我失去了你，你，你，你，你 我将一无所有 You see through, right to the heart of me 你已经看穿了我，直捣进我的心房 You break down my walls with the strength of you love 你用那坚韧的爱击碎了我的心墙 I never knew love like I"ve known it with you 以前不知道什么叫爱，是你让我明白Will a memory survive, one I can hold on to 如果记忆可以永存，就让我来证明这点

Whitney Houston - I Have NothingShare my life, take me for what I am"Cause I"ll never change all my colors for youTake my love, I"ll never ask for too muchJust all that you are and everything that you doI don"t really need to look very much furtherI don"t want to have to go where you don"t followI won"t hold it back again, this passion insideI can"t run from myself, there"s nowhere to hideDon"t make me close one more doorI don"t wanna hurt anymoreStay in my arms if you dareOr must I imagine you thereDon"t walk away from meI have nothing, nothing, nothingIf I don"t have you, you, you, you, youI don"t really need to look very much furtherI don"t want to have to go where you don"t followI won"t hold it back again, this passion insideI can"t run from myself, there"s nowhere to hideI don"t really need to look very much furtherI don"t want to have to go where you don"t followI won"t hold it back again, this passion insideI can"t run from myself, there"s nowhere to hideYou see through, right to the heart of meYou break down my walls with the strength of your loveI never knew love like I"ve known it with youWill a memory survive, one I can hold on toI don"t really need to look very much furtherI don"t want to have to go where you don"t followI won"t hold it back again, this passion insideI can"t run from myself, there"s nowhere to hideYour love I"ll remember foreverOh, don"t make me close one more doorI don"t wanna hurt anymoreStay in my arms if you dareOr must I imagine you thereDon"t walk away from meI have nothing, nothing, nothingDon"t make me close one more doorI don"t wanna hurt anymoreStay in my arms if you dareOr must I imagine you thereDon"t walk away from me, noDon"t walk away from meDon"t you dare walk away from meI have nothing, nothing, nothingIf I don"t have you, youIf I don"t have you, oh you

建议多听多哼哼就会了

有链接么？

歌曲名:Nothing Without You歌手:Bo Bice专辑:The Real ThingTake these hands and lift them upFor I have not the strength to praise You near enoughFor I have nothing, I have nothing without YouTake my voice and pour it outLet it sing the songs of mercy I have foundFor I have nothing, I have nothing without YouChorus:Bebo NormanAll my soul needsIs all Your love to cover me,So all the world will seeThat I have nothing without YouTake my body and build it upMay it be broken as an offering of loveFor I have nothing, I have nothing without YouAll my soul needsIs all Your love to cover meSo all the world will seeFor I have nothing, I love YouWith all my heartWith all my soulWith all my mindAnd all the strength I can findTake my time here on earthAnd let it glorify all that You are worthFor I am nothing, I am nothing, I am nothing without Youhttp://music.baidu.com/song/886143

nothing to lose，易烊千玺的。网易云没有，qq音乐有。我在找这首歌，找着找着就到你这了，看看我们找的是不是同一首。

if i ain"t got you - Alicia Keys ?

oh no [00:17.03]take what you need 拿走一切你需要的 [00:21.55]cuz i can"t hold my breath 因为我不能控制自己的呼吸 [00:30.69]say what you feel 说出你真正的感觉 [00:35.29]cuz i"ve got nothing left 因为我已经设么都没有了 [00:44.64]i made a promise to myself last night 我昨晚上对自己许下诺言 [00:51.27]i"m gunna keep it if it"s wrong or right 我愿意一直保留它，不管对错 [00:56.63]and if i lose it all 如果我把它全部失去了 [01:00.32]there"d be nothing left to lose 然后这里就没什么可以再失去的了 [01:03.26]and i would take the fall 我也愿意承担这个打击 “fall 再这里不好翻 也有痛苦的意思” [01:07.56]"coz no way you are out there 因为你已经不在那里了 [01:10.15]breathing in someone that i follow 这个句子不好翻， 大概意思是 跟随着我相信的人 [01:13.98]it"s a chance i"ll take even if i break 这是一个就算会让我受到伤害也一定要得到的机会 [01:18.09]and i"ll lose it all 我将会失去它，一切 [01:20.84]if i lose it all 如果真得如此 [01:27.27]wouldn"t matter anyway don"t change then 还不如一切都不要改变 [01:32.58]a thing that you want 意见你想要看见的事 [01:42.08]time pass away 时间会过的 [01:46.85]time is all i"ve got 只有时间是我拥有的 [01:52.83]if my heart still tried watching you 如果我的心仍然跟随着你 [01:59.67]there"ll be one less thing i have to do那我将少做一样事 [02:04.72]and if i lose it all 如果我失去它所有 [02:08.86]there"d be nothing left to lose 同上[02:15.94]"coz no way you are out there 同上 [02:19.59]breathing in someone that i follow [02:23.56]its a chance i"ll take even if i break 同上 [02:26.89]and i"ll lose it all 同上 [02:30.20]if i lose it all 同上 [02:35.17]and have you will be waiting when 那你还是否会等 [02:37.68]i fall in too younglow to get it out 我爱上你而且无法自拔 [02:40.86]i believe you"ll find me there 我相信你到时候能发现我在那里 [02:46.16]you"ll find me there 你会的 [02:49.82]and if i lose it all 同上 [02:54.06]there"d be nothing left to lose 同上 [02:56.66]and i would take the fall 同上 [03:00.80]"coz no way you are out there 同上 [03:03.46]breathing in someone that i follow 同上 [03:07.19]its a chance i"ll take even if i break 同上 [03:10.84]and i"ll lose it all 同上 [03:13.99]if i lose it all 同上 [03:17.29]and if i lose it all 同上 [03:21.49]there"d be nothing left to lose 同上 [03:24.19]and i would take the fall 同上 [03:28.29]"coz no way you are out there 同上 [03:30.98]breathing in someone that i follow 同上 [03:34.81]its a chance i"ll take even if i break 同上 [03:38.15]and i"ll lose it all 同上 [03:41.31]if i lose it all 同上 [03:48.04]wouldn"t matter anyway 不管怎样都无所谓了

if i had to live my life without you near me the days would all be empty the nights would seem so long you i see forever oh so clearly i might have been in love before but i"ve never felt this strong our dreams are young and we both know they take us where we want to go hold me now touch me now i don"t want to live without you nothing"s gonna change my love for you you oughta know by now how much i love you one thing you can be sure of i never ask for more than your love nothing"s gonna change my love for you you oughta know by now how much i love you the world may change my whole life through but nothing"s gonna change my love for you if the road ahead is not so easy our love will lead the way for us like a guiding star i"ll be there for you if you should need me you don"t have to change a thing i love you just the way you are so come with me and share the view i help you see forever too hold me now touch me now i don"t want to live without you nothing"s gonna change my love for you you oughta know by now how much i love you one thing you can be sure of i never ask for more than your love nothing"s gonna change my love for you you oughta know by now how much i love you the world may change my whole life through but nothing"s gonna change my love for you nothing"s gonna change my love for you you oughta know by now how much i love you one thing you can be sure of i never ask for more than your love nothing"s gonna change my love for you you oughta know by now how much i love you the world may change my whole life through but nothing"s gonna change my love for you

歌曲名:Coming Undone (Stegnation Remix) (Acid Planet Remix -- Holland)歌手:Korn专辑:Live & UngluedComing UndoneAlbum : See You On The Other Sidekeep holdin on whenmy brain"s tickin like a bombcuz the black parts are goneI"m back to get mesweet little wordsunlike nothing i have heardsing along mocking birdyou dont affect methats rightthe labyrinth"s of my heartdestroyand deliver itwaitI"m coming undoneI"m lateI"m coming undonetoo lateI"m coming undonewhat loves so strong so delicatewaitI"m starting to suffocatecan someone antisipateI"m coming undonewhat loves so strong so delicatechoke, choke againI got my demons from my friendsgetting me in the endthey"re out to get mesince i was youngI"ve touched the sorrow on the toungeand the sweet sugar gundoes not protect methats righttake it between my eyesdestroymake it tick nowwaitI"m coming undoneI"m lateI"m coming undonetoo lateI"m coming undonewhat loves so strong so delicatewaitI"m starting to suffocatecan someone antisipateI"m coming undonewhat loves so strong so delicateI"mtrying to hold it togetherhead is like an elevatorlooks like i"m not getting betternot getting betterwaitI"m coming undoneI"m lateI"m coming undonetoo lateI"m coming undonewhat loves so strong so delicatewaitI"m starting to suffocatecan someone anticipateI"m coming undonewhat loves so strong so delicatehttp://music.baidu.com/song/2590134

We just laugh about it －You"ve been all around the world －then search for life －and have been lying on the bad time flow to mine －unless like you are always first to ask －daddy used to say that after this is a chat －yeah yeah yeah yeah －we are always gonna make it －we never have to fake it －and nothing is gonna break it －we just laugh about it －we just laugh about it －we are always gonna make it －we never have to fake it －and nothing is gonna break it －we just laugh about it －we just laugh about it －you go all around the world i go and see －you believe in being where i like to dream －still we never see to go outside the way －every night you back query honey, how is your day －yeah yeah yeah yeah －(we and you) －we are always gonna make it －(keep it true) －we never have to fake it －(i love you) －and nothing is gonna break it －we just laugh about it －we just laugh about it －(we and you) －we are always gonna make it －(keep it true) －we never have to fake it －(i love you) －and nothing is gonna break it －we just laugh about ithttp://224.cachefile17.rayfile.com/9140/zh-cn/preview/b018e93202a10bf321e007ddd2ab40fc/preview.mp3

Nothing"sgonnastopus没有什么可以阻止我们（此处为题目，可以翻译为“不可阻挡”）Lookin"inyoureyesIseeaparadise.在你的眼中，我看到天堂，ThisworldthatI"vefoundistoogoodtobetrue我发现这世界是如此美好，近似虚幻，Standin"herebesideyou,wantsomuchtogiveyou伫立你身傍，多想付出一切给你，ThisloveinmyheartthatI"mfeelin"foryou这是我感觉到的心中对你的爱。Let"emsaywe"recrazy,Idon"tcareaboutthat就让他们说我疯狂吧，我不在乎，Putyourhandinmyhand,baby,don"teverlookback放你的手在我的手心，不要回眸，Lettheworldaroundusjustfallapart就让周边的世界土崩瓦解，Baby,wecanmakeitifwe"reheart-to-heart亲爱的，只要我们心心相印，我们就能做到。Andwecanbuildthisdreamtogether我们可以一起构建梦想，Standingstrongforever伫立永远，Nothing"sgonnastopusnow现在没有什么可以阻止我们，Andifthisworldrunsoutoflovers即使这世界相爱者不复存在，We"llstillhaveeachother我们仍将相互拥有。Nothing"sgonnastopus,nothing"sgonnastopusnow,whoano没有什么可以阻止我们，没有什么可以阻止我们。哦，没有！I"msogladIfoundyou,I"mnotgonnaloseyou发现了你我如此高兴，我不想失去你，Whateverittakes,Iwillstayherewithyou不管付出任何代价，我都将与你同在一起，Takeyoutothegoodtimes,seeyouthroughthebadtimes与你分享美好时光，伴你读过艰难时刻，WhateverittakesiswhatI"mgonnado不管付出任何代价，这就是我要做的。Let"emsaywe"recrazy,whatdotheyknow?就让他们说我们疯狂吧，他们知道什么？Putyourarmsaroundme,baby,don"teverletgo搂紧我在你的臂弯，不要让我离开，Lettheworldaroundusjustfallapart就让周边的世界土崩瓦解，Baby,wecanmakeitifwe"reheart-to-heart亲爱的，只要我们心心相印，我们就能做到。Andwecanbuildthisdreamtogether我们可以一起构建梦想，Standingstrongforever伫立永远，Nothing"sgonnastopusnow现在没有什么可以阻止我们，Andifthisworldrunsoutoflovers即使这世界相爱者不复存在，We"llstillhaveeachother我们仍将相互拥有。Nothing"sgonnastopus,nothing"sgonnastopusnow,whoano没有什么可以阻止我们，没有什么可以阻止我们。哦，没有！AllthatIneedisyou我所需要的就是你，AllthatIeverneed我所需要的，AllthatIwanttodo我想做的，Isholdyouforever,foreverandever就是永远抱紧你，永远，永远。Andwecanbuildthisdreamtogether我们可以一起构建梦想，Standingstrongforever伫立永远，Nothing"sgonnastopusnow现在没有什么可以阻止我们，Andifthisworldrunsoutoflovers即使这世界相爱者不复存在，We"llstillhaveeachother我们仍将相互拥有。Nothing"sgonnastopus,nothing"sgonnastopusnow,whoano没有什么可以阻止我们，没有什么可以阻止我们。Buildthisdreamtogether一起构建梦想，Standingstrongforever伫立永远，Nothing"sgonnastopusnow现在没有什么可以阻止我们，Andifthisworldrunsoutoflovers即使这世界相爱者不复存在，We"llstillhaveeachother我们仍将相互拥有。Nothing"sgonnastopusnow没有什么可以阻止我们。Andwecanbuildthisdreamtogether我们可以一起构建梦想，Standingstrongforever伫立永远，Nothing"sgonnastopusnow现在没有什么可以阻止我们，Andifthisworldrunsoutoflovers即使这世界相爱者不复存在，We"llstillhaveeachother我们仍将相互拥有。Nothing"sgonnastopus,nothing"sgonnastopusnow,whoano没有什么可以阻止我们，没有什么可以阻止我们。

谢谢你(给)的音乐...吧..是Abba的那首吗?!经典哦... ==在帮你翻我没有特别之处，老实说我这个人还挺无趣的如果我说笑话，说不定你早就听过了但是我有一项神奇的天赋因为当我开始歌唱，每个人都会停下来听我心中既感激又骄傲我只想大声的唱出来因此我要说感谢你给我音乐，这些我唱的歌感谢它们带来的欢乐没有了音乐谁还活的下去？我诚实的问自己人生会变成什么样子？没有了音乐和舞蹈，我们算什么？因此我要说：感谢你给我音乐将它们赐给了我妈妈说我还不会走路就会跳舞她还说我还不会说话就开始唱歌了我自己也常常在想：那是怎么开始的？有谁发现还有什么能抓住我的心？像旋律一样嗯！不论如何，我是个歌迷因此我要说感谢你给我音乐，这些我唱的歌感谢它们带来的欢乐没有了音乐谁还活的下去？我诚实的问自己人生会变成什么样子？没有了音乐和舞蹈，我们算什么？因此我要说：感谢你给我音乐将它们赐给了我我一直都很幸运，是个金发女孩我要大声的唱给每一个人多么快乐！多美的人生！多棒的机会！因此我要说感谢你给我音乐，这些我唱的歌感谢它们带来的欢乐没有了音乐谁还活的下去？我诚实的问自己人生会变成什么样子？没有了音乐和舞蹈，我们算什么？因此我要说：感谢你给我音乐将它们赐给了我[00:09.78]Im nothing special, in fact Im a bit of a bore[00:18.57]If I tell a joke, youve probably heard it before[00:25.61]But I have a talent, a wonderful thing[00:31.85]Cause everyone listens when I start to sing[00:37.05]Im so grateful and proud[00:39.80]All I want is to sing it out loud[00:45.91]So I say[00:47.90]Thank you for the music, the songs Im singing[00:52.23]Thanks for all the joy theyre bringing[00:57.12]Who can live without it, I ask in all honesty[01:03.44]What would life be?[01:05.46]Without a song or a dance what are we?[01:09.99]So I say thank you for the music[01:14.78]For giving it to me[01:20.00]Mother says I was a dancer before I could walk[01:27.09]She says I began to sing long before I could talk[01:37.84]And Ive often wondered, how did it all start?[01:44.90]Who found out that nothing can capture a heart[01:49.62]Like a melody can?[01:54.23]Well, whoever it was, Im a fan[01:57.89]So I say[01:59.46]Thank you for the music, the songs Im singing[02:04.31]Thanks for all the joy theyre bringing[02:08.94]Who can live without it, I ask in all honesty[02:14.56]What would life be?[02:16.95]Without a song or a dance what are we?[02:21.46]So I say thank you for the music[02:25.25]For giving it to me[02:32.91]Ive been so lucky, I am the girl with golden hair[02:41.65]I wanna sing it out to everybody[02:48.20]What a joy, what a life, what a chance![02:52.43]So I say[02:54.38]Thank you for the music, the songs Im singing[02:58.75]Thanks for all the joy theyre bringing[03:03.86]Who can live without it, I ask in all honesty[03:10.12]What would life be?[03:12.13]Without a song or a dance what are we?[03:16.50]So I say thank you for the music[03:20.30]For giving it to me

歌名：Everything Is Nothing歌手：Sweetbox 专辑：The Next Generation 英文歌词：baby i just didn"t realize i can"t believe you wanna say goodbye i should have seen it coming long before and pay attention to you a little more i know i"ve done you wrong now you"re almost gone all the lonely nights let me make it rightstill the world is turning and my heart is pumping voice and emotions running through my vein takes that special something took in my attention everything is nothing no its nothing if i don"t have you do you remember when our love is new you said will be forever and it was true we made promises much too hard to keep but we can make it work i do believeeverything comes true if you only knew what is meant to be doesn"t come easy still the world is turning and my heart is pumping voice and emotions running through my vein takes that special something took in my attention everything is nothing no its nothing if i don"t have you we got all a"s from what we had back then so don"t say it has to end the consequence i didn"t see you might walk away from me taking it for granted you were minestill the world is turning and my heart is pumping still the world is turning and my heart is pumping voice and emotions running through my vein takes that special something took in my attention everything is nothing no its nothing if i don"t have youstill the world is turning and my heart is pumping voice and emotions running through my vein takes that special something took in my attention everything is nothing no its nothing if i don"t have you 中文歌词：宝贝，我只是还没有了解我不敢相信你就这样说再见我之前就不应该看这天到来付出更多的精力在你身上我知道我错了现在你要走了所有孤独的夜晚让我来把错改正世界仍在旋转我的心在跳动（心在跳动）声音和感情贯穿我的脉搏带走这个特别的东西带我的注意力（我的注意力）所有事情都无所谓，都无所谓如果我没有你你还记得我们刚相爱时吗（你还记得）你说用永远在一起，这会成真（真的）你发了重誓我相信我们做得到所有事情都实现了我求你要知道所有发生的事情都来之不易世界仍在旋转我的心在跳动（心在跳动）声音和感情贯穿我的脉搏带走这个特别的东西带我的注意力（我的注意力）所有事情都无所谓，都无所谓如果我没有你我们的过去很美好所以请别轻易说结束重要的事我没看见你可能会离开我你应该是我的世界仍在旋转我的心在跳动（心在跳动）世界仍在旋转我的心在跳动（心在跳动）声音和感情贯穿我的脉搏带走这个特别的东西带我的注意力（我的注意力）所有事情都无所谓，都无所谓如果我没有你 我的心情很糟糕情绪贯穿我的脉搏带走特殊的东西带走我的注意力（我的注意力）所有事情都无所谓，都无所谓如果我没有你

歌曲名:I Have A Dream歌手:Uk Gospel Choir专辑:Sing Classic Hits演讲:Martin Luther King名称:I Have a DreamI am happy to join with you todayin what will go down in history asthe greatest demonstration for freedom in the history of our nation.Five score years ago, a great American,in whose symbolic shadow we stand today,signed the Emancipation Proclamation.This momentous decree came as a greatbeacon light of hope to millions of Negro slaveswho had been seared in the flames of withering injustice.It came as a joyous daybreak to end the long night of their captivity.But one hundred years later, the Negro still is not free.One hundred years later,the life of the Negro is still sadly crippledby the manacles of segregation and the chains of discrimination.One hundred years later,the Negro lives on a lonely island of poverty in the midst ofa vast ocean of material prosperity.One hundred years later,the Negro is still languished in the corners of American societyand finds himself an exile in his own land.And so we"ve come here today to dramatize a shameful condition.In a sense we"ve come to our nation"s capital to cash a check.When the architects of our republic wrote the magnificent wordsof the Constitution and the Declaration of Independence,they were signing a promissory note to which every American was to fall heir.This note was a promise that all men, yes,black men as well as white men,would be guaranteed the "unalienable Rights" of "Life,Liberty and the pursuit of Happiness."It is obvious today that America has defaulted on this promissory note,insofar as her citizens of color are concerned.Instead of honoring this sacred obligation,America has given the Negro people a bad check,a check which has come back marked "insufficient funds."But we refuse to believe that the bank of justice is bankrupt.We refuse to believe that there are insufficient fundsin the great vaults of opportunity of this nation. And so,we"ve come to cash this check,a check that will give us upon demand the riches of freedomand the security of justice.We have also come to this hallowed spot to remind America ofthe fierce urgency of Now.This is no time to engage in the luxury of cooling offor to take the tranquilizing drug of gradualism.Now is the time to make real the promises of democracy.Now is the time to rise from the dark and desolate valley of segregationto the sunlit path of racial justice.Now is the time to lift our nation from the quicksandsof racial injustice to the solid rock of brotherhood.Now is the time to make justice a reality for all of God"s children.It would be fatal for the nation to overlook the urgency of the moment.This sweltering summer of the Negro"s legitimate discontentwill not pass until there is an invigorating autumn of freedom and equality.Nineteen sixty-three is not an end, but a beginning.And those who hope that the Negro needed to blow off steamand will now be content will have a rude awakeningif the nation returns to business as usual.And there will be neither rest nor tranquility in Americauntil the Negro is granted his citizenship rights.The whirlwinds of revolt will continue to shake the foundationsof our nation until the bright day of justice emerges.But there is something that I must say to my people,who stand on the warm threshold which leads into the palace of justice:In the process of gaining our rightful place,we must not be guilty of wrongful deeds.Let us not seek to satisfy our thirst for freedomby drinking from the cup of bitterness and hatred.We must forever conduct our struggle on the high plane of dignity and discipline.We must not allow our creative protest to degenerate into physical violence.Again and again,we must rise to the majestic heights of meeting physical force with soul force.The marvelous new militancywhich has engulfed the Negro community must not lead us to a distrustof all white people, for many of our white brothers,as evidenced by their presence here today,have come to realize that their destiny is tied up with our destiny.And they have come to realize that their freedom is inextricably bound to our freedom.We cannot walk alone.And as we walk, we must make the pledge that we shall always march ahead.We cannot turn back.There are those who are asking the devotees of civil rights,"When will you be satisfied?"We can never be satisfied as long as the Negro is thevictim of the unspeakable horrors of police brutality.We can never be satisfied as long as our bodies,heavy with the fatigue of travel,cannot gain lodging in the motels of the highwaysand the hotels of the cities.We cannot be satisfied as long as a Negro in Mississippicannot vote and a Negro in New York believes he has nothing for which to vote.No, no, we are not satisfied,and we will not be satisfied until "justice rolls down like waters,and righteousness like a mighty stream."I am not unmindful that some of you have come hereout of great trials and tribulations.Some of you have come fresh from narrow jail cells.And some of you have come from areas where your quest --quest for freedom left you battered by the storms of persecutionand staggered by the winds of police brutality.You have been the veterans of creative suffering.Continue to work with the faith that unearned suffering is redemptive.Go back to Mississippi,go back to Alabama,go back to South Carolina,go back to Georgia,go back to Louisiana,go back to the slums and ghettos of our northern cities,knowing that somehow this situation can and will be changed.Let us not wallow in the valley of despair, I say to you today, my friends.And so even though we face the difficulties of today and tomorrow,I still have a dream. It is a dream deeply rooted in the American dream.I have a dream that one day this nation will rise upand live out the true meaning of its creed:"We hold these truths to be self-evident, that all men are created equal."I have a dream that one day on the red hills of Georgia,the sons of former slaves and the sons of former slave ownerswill be able to sit down together at the table of brotherhood.I have a dream that one day even the state of Mississippi,a state sweltering with the heat of injustice,sweltering with the heat of oppression,will be transformed into an oasis of freedom and justice.I have a dream that my four little children will one daylive in a nation where they will not be judged by the color of their skinbut by the content of their character.I have a dream today!I have a dream that one day, down in Alabama,with its vicious racists,with its governor having his lips dripping with the words of "interposition"and "nullification" -- one day right there in Alabama little black boysand black girls will be able to join hands with little white boysand white girls as sisters and brothers.I have a dream today!I have a dream that one day every valley shall be exalted,and every hill and mountain shall be made low,the rough places will be made plain,and the crooked places will be made straight;"and the glory of the Lord shall be revealed and all flesh shall see it together."?This is our hope, and this is the faith that I go back to the South with.With this faith,we will be able to hew out of the mountain of despair a stone of hope.With this faith,we will be able to transform the jangling discords of our nation into abeautiful symphony of brotherhood. With this faith,we will be able to work together,to pray together,to struggle together,to go to jail together,to stand up for freedom together,knowing that we will be free one day.And this will be the daythis will be the day when all of God"s childrenwill be able to sing with new meaning:My country "tis of thee, sweet land of liberty, of thee I sing.Land where my fathers died, land of the Pilgrim"s pride,From every mountainside, let freedom ring!And if America is to be a great nation, this must become true.And so let freedom ring from the prodigious hilltops of New Hampshire.Let freedom ring from the mighty mountains of New York.Let freedom ring from the heightening Alleghenies of Pennsylvania.Let freedom ring from the snow-capped Rockies of Colorado.Let freedom ring from the curvaceous slopes of California.But not only that:Let freedom ring from Stone Mountain of Georgia.Let freedom ring from Lookout Mountain of Tennessee.Let freedom ring from every hill and molehill of Mississippi.From every mountainside, let freedom ring.And when this happens,when we allow freedom ring,when we let it ring from every village and every hamlet,from every state and every city,we will be able to speed up that day when all of God"s children,black men and white men, Jews and Gentiles, Protestants and Catholics,will be able to join hands and sing in the words of the old Negro spiritual:Free at last!free at last!Thank God Almighty, we are free at last!(the end)http://music.baidu.com/song/2967189

You might say no to meBut to me a no is so indifferentlyI drag along your wayIt"s your way I"m hanging in so desperatelyI beg you please to start believe that it"s way too soonTo change your wayYou can feel that our loveIs fading out, out of touch (oh)And you say we"ve got nothing in commonYou"re so crazy, I"m saneYou got heart, I got brainsAnd there"s nothing that we have in common at allOh, oh, ohNothing in commonI listen to your wordsAnd it hurts when you tell me how I"m supposed to beYou tell me to suit up, get a jobIt makes you crazy that I cannot see"Cause I got heart, got soulI play the guitarIt"s too late to change your wayYou can feel that our loveIs fading out, out of touch (oh)And you say we"ve got nothing in commonYou"re so crazy, I"m saneYou got heart, I got brainsAnd there"s nothing that we have in common at allOh, oh, ohNothing in commonAnd all of my money I spend it on youAnd all my love I gave it to youMy angel, my boo, the things you doIf only you can tell me, tell me, tell me, tell meYou can feel that our loveIs fading out, out of touch (oh)And you say we"ve got nothing in commonYou"re so crazy, I"m saneYou got heart, I got brainsAnd there"s nothing that we have in common at allOh, oh, ohNothing in commonWe got nothing in common at allAt all, at allWe got nothing in common at all译：你可以对我说不但我没有那么冷淡我拖你的方式这是你的方式我挂在拼命我请求你开始相信太快改变你的方式你能感觉到我的爱是衰落了，失去了联系，（哦）你说我们没有共同点你是如此疯狂，我很清醒你的心脏，我的大脑并没有什么，我们有共同点哦，哦，哦没有共同之处我听你的话而当你告诉我我该怎么做你告诉我适应了，找一份工作它让你疯狂，我不能看见因为我的心，有灵魂我弹吉他这是改变你的太晚了你能感觉到我的爱是衰落了，失去了联系，（哦）你说我们没有共同点你是如此疯狂，我很清醒你的心脏，我的大脑并没有什么，我们有共同点哦，哦，哦没有共同之处我所有的钱花在你我和我所有的爱给了你我的天使，我的一切，你做的事情如果只有你能告诉我，告诉我，告诉我，告诉我你能感觉到我的爱是衰落了，失去了联系，（哦）你说我们没有共同点你是如此疯狂，我很清醒你的心脏，我的大脑并没有什么，我们有共同点哦，哦，哦没有共同之处我们没有共同点在所有的，在所有我们没有共同点

i"ll sitting here in a boring room, it"s just another rainy sunday afternoon , i"m wasting my time i got nothing to do, i"m hanging around i"m waiting for you. but nothing ever happens and i wonder. i"m driving around in my car, i"m driving too fast i"m driving too far , i"d like to change my point of view, i feel so lonely i"m waiting for you, but nothing ever happens and i wonder. ## i wonder how i wonder why yesterday you told me about blue blue sky; and all that i can see is just a yellow lemon tree, i"m turning my head up and down i"m turning turning turning turning turning around and all that i can see is just another lemon tree. see,dalada,diladada... i"m sitting here i miss the power, i"d like to go out taking a shower, but there"s a heavy cloud inside my head , i fell so tired put myself into bed, but nothing ever happens and i wonder. ** i solation is not good for me, i solation i want to sit on a lemon tree . ** i"m stepping around in adesert of joy, baby anyhow i"ll got another toy, and everything will happen and you"ll wonder. ## i wonder how i wonder why ? yesterday you told me about blue blue sky, and all that i can see is just a another lemon tree; i"m turning my head up and down i"m turning turning turning turning turning around and all that i can see is just yellow lemon tree, and i wonder wonder； i wonder how i wonder why, yesterday you told me about blue blue sky, and all that i can see , and all that i can see, and all that i can see

歌曲名:Falling In Love (With You)歌手:Jeff & Sheri Easter专辑:My, Oh My!Falling in Love - TyreseHeyAll these years I have been wanting you in my lifeAnd now I finally have youI"m gonna do everthing in my strengthTo keep you nearI care about youI just wanna make you smileLet"s goAll the many days you were on my mindVisions of me with you all the timeYou wasn"t lookin for a man you made it clear (clear to me)And now I"m ever so glad that I have you nearHere in my life just you and IWe can do what ever we want toLiving my life with you by my sideOh one day I"mma make you my wife, babeI was excited cause I was fallingFalling in love with youNow that I have fallenWhat am I gonna doI was excited cause I was fallingFalling in love with youNow that I have fallenWhat am I gonna doI do whatever puts a smile on my baby"s faceGirl you"re my best friendYou can never be replacedThere"s nothing in this world I wouldn"t do (do for you)You were one of my favorite dreams and I"m so glad that it came trueHere in my life just you and IWe can go any where we want to babyI"m living my life with you by my sideOne day I"mma make you my wife,yes I amI was excited cause I was fallingFalling in love with you (fallin in live with you)Now that I have fallenWhat am I gonna do (oh,I"ve gone beside myself)I was excited cause I was fallingFalling in love with you (and it feels so good to me baby)Now that I have fallenWhat am I gonna doSince I gave you all my trust (and you never take my trust for granted)And you given so much love (and you given me so much love baby)You"re everything I want and need (you are everything I want and I need baby)Girl, you got the best of me (oh, you got the best of me)Break it downOh,oh I was falling in loveI don"t know what to doI just love youWith every inch of my bodyFalling in loveWe"ll just take it one day at a timeI was excited cause I was fallingFalling in love with you (I don"t wanna rush into romance)Now that I have fallenWhat am I gonna do (oh I just want you in my arms baby)I was excited cause I was fallingFalling in love with you(When I see you I wanna touch you )Now that I have fallen (And feel you )What am I gonna do (and hold you babe baby baby yeah)I was excited(oh, it feels so good )To be in love (now that I have fallen)And get love in return oh oh oh)I was excited cause I was falling (cause it feels real)Falling in love with you (oh cause it feels real)Now that I have fallenWhat am I gonna doOh oh ohI was excited cause I was falling (yes it feels)Falling in love with you (so good)Now that I have fallen (having you on the whole)What am I gonna do (feeling so complete baby)http://music.baidu.com/song/3474508

if i had to live my life without you near me 如果我不得不过一种没有你陪伴的生活the days would all be empty 白天会变得很空虚 the nights would seem so long 黑夜会变得很漫长 you i see forever oh so clearly 我看见你 是如此的清晰i might have been in love before 我可能曾经爱过but i"ve never felt this strong 但从没有像这次感觉这般强烈 our dreams are young and we both know 我们两个都知道 我们的梦想还很年轻 they"ll take us where we want to go 它们会带我们到达我们向往的地方hold me now touch me now 现在 抱紧我 触摸我i don"t want to live without you 我不想过没有你的生活nothing"s gonna change my love for you 没有什么能够改变我对你爱you oughta know by now how much i love you 你现在应该知道我有多爱你one thing you can be sure of 你可以确信一点 i never ask for more than your love 除了你的爱 我别无所求 nothing"s gonna change my love for you 没有什么能够改变我对你的爱you oughta know by now how much i love you 你现在应该知道我有多爱你 the world may change my whole life through 这世界可能会将我的一生改变but nothing"s gonna change my love for you 但没有什么能够改变我对你的爱if the road ahead is not so easy 如果前面的路不是那么容易走 our love will lead the way for us like a guiding star 我们的爱会像启明星一样迎领我们前行 i"ll be there for you if you should need me 当你可能需要我时 我就会出现you don"t have to change a thing 你不需要做什么改变 i love you just the way you are 我爱你 就爱你现在这样so come with me and share the view 所以 跟我来吧 一起分享风景i help you see forever too 我会永远帮助你去感受hold me now touch me now 现在 抱紧我 触摸我i don"t want to live without you 我不想过没有你的生活 让我们一起支持方大同！

　　nothing gonna stop us now 打印此页　　歌手：starship　　Starship　　Nothings Gonna Stop Us　　By Jefferson Starship　　Looking in your eyes I see a paradise　　This world that I"ve found is too good to be true　　Standing here beside you, want so much to give you　　This love in my heart that I"m feeling for you　　Let "em say we"re crazy, I don"t care about that　　Put your hand in my hand baby don"t ever look back　　Let the world around us just fall apart　　Baby we can make it if we"re heart to heart　　And we can build this dream together　　Stand this storm forever　　Nothings gonna stop us now　　And if this world runs out of lovers　　We"ll still have each other　　Nothings gonna stop us,　　Nothings gonna stop us now　　I"m so glad I found you, I"m not gonna lose you　　Whatever it takes I will stay here with you　　Take it to the good times, see it through the bad times　　Whatever it takes here"s what I"m gonna do　　Let "em say we"re crazy, what do they know　　Put your arms around me baby don"t ever let go　　Let the world around us just fall apart　　Baby we can make it if we"re heart to heart　　And we can build this dream together　　Stand this storm forever　　Nothings gonna stop us now　　And if this world runs out of lovers　　We"ll still have each other　　Nothings gonna stop us,　　Nothings gonna stop us now　　Oh, all that I need is you　　All that I ever need　　And all that I want to do　　Is hold you forever, and ever and ever　　And we can build this dream together　　Stand this storm forever　　Nothings gonna stop us now　　And if this world runs out of lovers　　We"ll still have each other　　Nothings gonna stop us,　　Nothings gonna stop us now

无主人生 从未有一个地方真正被我称之为家 因为我总是那么行色匆匆 还是很抱歉我并不爱你 但我并不介意你没有为此心碎 （因为）这只是一个念头，仅仅是一个念头 如果我的人生不属于我自己，而我也无法拥有它 那么我并不值得拥有更多 因为我所拥有的并没有什么真正属于我 我一直以为自己想要傍海而居 独自周游世界去过更简单的生活 我不知道这个梦想为何没能实现 因为其实并没有什么阻碍了我。 （其实）这只是一个念头，仅仅是一个念头 当我把心灵当成盾牌而不愿卸下防备 当我如此恐惧失败以致于根本不去尝试 那我怎么能说我是活着的？ 如果我的人生不属于我自己，而我也无法拥有它 那么我并不值得拥有更多 因为我所拥有的并没有什么真正属于我我从别的地方看到的，不知道还有没有其他更好的版本

air supply的《Making love out of nothing at all》

没看懂什么意思？

西印度群岛位于印度洋，在印度洋海域范围

提高机械效率最简单的方法是：1,减小机械自重例如：动滑轮太重，换用较轻滑轮就可提高其机械效率。2.,减小机械间的摩擦力。

首先看有几个动滑轮，绳子段数就是动滑轮个数的两倍。再看绳子起始端，起始端在动滑轮上就要在刚才的基础上加一根，起始端在动滑轮上就不用加。这样的知识点一般用于含滑轮的题目中，如计算效率、有用功时。扩展资料η=W有/W总竖直方向上提升重物可以写成：η=W有/W总=Gh/Fs=G/nF(滑轮组)不计摩擦时：η=W有/W总=Gh/(Gh+G动h)=G/(G+G动)水平方向用滑轮组拉动物体：η=W有/W总=fs物/Fs=f/nF(n是绳子段数)

　　西印度岛位于大西洋及其属海墨西哥湾、加勒比海之间。西印度岛的水系特点是河流比较短，河道比较陡峭，会穿过很多结晶质岩石，然后在平原上转变成为迂回的河槽。 　　西印度岛是北美洲的一个岛群，呈现弧线，从西边向东边突出，长度大概是4700多公里，面积为24万平方公里。西印度岛包含了1200多个岛屿、还有很多的暗礁等，最高峰是杜阿尔特峰。 　　西印度岛干旱的季节是比较长的，有些河流会在一段时间内完全干涸。西印度岛的大多数岛屿属于热带海洋性气候，没有冬夏之分。

就是古巴群岛,在北美洲,墨西哥右边

机械效率大小依次是定滑轮 动滑轮 滑轮组: 因为用定滑轮提升重物时,只有绳和轮之间的摩擦; 用动滑轮提升重物时,既有绳和轮之间的摩擦,又要提升动滑轮本身; 用滑轮组提升重物时,既有绳和多轮之间的摩擦,又要提升动滑轮本身. 挂的物体越重,机械效率越大 s=n*h η=W有/W总=[(G物+G动）*h]/(F*s)=[(G物+G动）*h]/(F*n*h)=(G物+G动)/(n*F) n、G动、F一定,G物与η成正比

有用功=GH=480乘以1=480焦耳总功=F乘以S=200乘以1乘以3=600焦耳机械效率=有用功除以总功乘以100%=80%P拉力=F乘以V=0.3乘以N乘以F=200乘以3乘以0.3=180瓦

大西洋及其属海墨西哥湾、加勒比海之间。西印度群岛的位置在大西洋及其属海墨西哥湾、加勒比海之间，而且与佛罗里达海峡相隔，并且还与美国的佛罗里达半岛相望，东南临近委内瑞拉北岸。西印度群岛主要包括巴哈马群岛，大安的列斯群岛，小安的列斯群岛。

机械效率=W有用/W总=Gh/FS （G是物体的重力,F是拉力,S是绳子拉长的距离,h是物体上升高度） 又因为S=nh 所以 机械效率=G/nF （n是承重的绳子段数）

西印度群岛位于大西洋西部的墨西哥湾、加勒比海之间。

　　机械效率问题解释：　　机械效率指有用功与总功的比值，用符号η表示，计算公式为η=W有/W总*100%　　1.有用功　　指的是我们必须要做的这部分功，物理学中叫有用功，是无论采取哪种办法都必须做的功，不可以为0。例如在雪地里推车推不动这时候推力做功为0，但对汽车的推力做的功是有用功。　　2.额外功(无用功)　　无用功指的是不需要而又不得不做的功，一定存在，不可能为0.　　3.总功　　总功指有用功和额外功的总和 机械效率公式η=W有/W总*100%　　.有用功是指物体对绳子做的功，如要把物体匀速举高h，由于举力等于重力G，必须对物体做Gh的功，这个功是有用的（不考虑摩擦力等因素的影响）。　　η=W有÷W总×100%　　η读作： yi ta (2012版人教八年级物理给的读音是aita)　　有用功总是小于总功，所以机械效率总是小于1（100%）。机械效率通常用百分数表示。例如总功是500J，有用功是400J，机械效率就是 400J/500J = 0.8 = 80%.　　　　归纳，三种机械功的比较及三种机械效率的计算　　杠杆：有用功W有用=Gh　　额外功（克服杠杆本身重力，摩擦力所做的功 W额外=W总-W有用）　　总功（W总=FS）　　滑轮组：有用功（W有用=Gh）　　额外功（克服动滑轮重，绳重和摩擦力所做的功　　①W额外=W总-W有用　　②若不计绳重，摩擦力，W额外=G动h）　　总功（W总=FS）　　斜面： 有用功（W有用=Gh）　　额外功（克服摩擦力所做的功　　①W额外=W总-W有用　　②W额外=fL ） 注 ：f指摩擦力 L指斜面长度　　总功（W总=FL） 注F指拉力　　机械效率的计算　　杠杆：η=W有用÷W总=Gh÷FS　　其中G为被提升重物的重力，h为重物升高的高度，F为动力，s为动力作用点移动的距离　　滑轮或轮组：　　①提升重物：1，η=W有用÷W总=Gh÷FS=G÷nF　　2，不计绳重，摩擦η=Gh÷（Gh+G动h）=G÷（G+G动）　　②水平匀速拉物：η=W有用÷W总=fs物÷Fs绳=f÷nF　　斜面：①η=W有用÷W总=Gh÷FL　　②η=Gh÷(Gh+fL)

初中物理书上有 具体的忘了 跟他的缠绕匝数有关 关键就是看你会不会数

加勒比海美国的东南方 北美洲的岛群。位于大西洋及其属海墨西哥湾、加勒比海之间，北隔佛罗里达海峡与美国 佛罗里达半岛相望，东南邻近委内瑞拉北岸

有关因素：1、被提物体的重量,g越大,机械效率越高。2、滑轮自重,滑轮组如果越多,虽然省力但是无用功多,机械效率越小。3、绳与滑轮之间的摩擦。无关因素：1、绕线方式。2、物体被提高的距离。3、提物体的速度。

北美洲吧～～～

η=W有/W总=Gh/Fs=G/nF η=W有/W总=W有/（W有+W额外）=G/（G+G动）W有：有用功 W总：总功 G：物体的重力 h：重物上升的高度F：绳子自由端的拉力 n ：承担重物的绳子的段数W额外：额外功 G动：动滑轮的重力 S是在力F的方向上移动的距离

滑轮组的机械效百率有关因素：1、被提物体的重量,G越大,机械效率越高。2、滑轮自重,滑轮组如果越多,虽然省力但是无用功多,机械效率越小。3、绳与滑轮之间的摩擦。无关因素：1、绕线方式。2、物体被提高的距度离。3、提物体的速度。扩展资料：滑轮组的机械效率计算公式：η=W有用/W总=Gh/Fs=Gh/Fnh=G/nF=（不计绳重及摩擦）G/（G+G动)滑轮组的机械效率，影响它的最主要的因素知是物重，其次才是滑轮重、绳重和摩擦。无论你用同一滑轮组吊起一根绣花针或一个重量远远大于动滑轮的重物，你都需要把动滑轮举上去。还要克服绳重与摩擦，道前者额外功远远大于有用功，其机械效率几乎为零，后者额外功在总功中占的比值就小得多，所以物重越大，机械效率就越高。主要因素：物体回重答力一定时，动滑轮越重，机械效率越低，动滑轮重一定时，物体重力越大，机械效率越高。参考资料：百度百科——机械效率

我只会（2）根据η＝W有用／W总哎～

西印度群岛（West Indies） 北美洲的岛群。位于大西洋及其属海墨西哥湾、加勒比海之间，北隔佛罗里达海峡与美国佛罗里达半岛相望，东南邻近委内瑞拉北岸，从西端的古巴岛到委内瑞拉北海岸的阿鲁巴岛，

　　（1）你猜测影响滑轮组机械效率的因素有：　　（2）对你猜测的多种因素中的某一个因素进一步猜测它是怎样影响滑轮组的效率的？　　（3）针对（2）设计一个实验进行验证．　　①实验器材：　　②画出你将使用的滑轮组的组装及绕线方法示意图．　　③实验中需测的物理量有哪些？　　④写出计算滑轮组机械效率的表达式．　　题型：问答题难度：中档来源：不详　　答案（找作业答案--->>上魔方格）　　（1）滑轮组的机械效率的高低可能与提起的物重、动滑轮的重、绳重、摩擦有关．　　（2）在其它条件相同时，提起的物体越重，机械效率越高，在其它条件相同时，动滑轮越重、绳越重、摩擦越大，机械效率越低．　　（3）①测量的物理量有物体的重G、绳子自由端的拉力F、物体升高的距离h、绳子自由端移到的距离s．测量G和F需要弹簧测力计，测量h和s需要用到刻度尺．有被测的滑轮组，连接滑轮的细绳，固定滑轮组的铁架台．

滑轮组的机械效率和物体重、动滑轮重有关,如果动滑轮重不变,物体越重,机械效率越高；如果物体重不变,动滑轮越重,机械效率越低.要是考虑绳重和摩擦力的话,绳重和动滑轮重都属于机械本身重力,摩擦力越大也会使吊起同样重的物体时使用的拉力越大,使机械效率降低,总的说,滑轮组的机械效率与物体重力、摩擦力、机械本身重力有关.要提高机械效率,应尽量减小摩擦和机械本身重力的同时,最大限度的增加被吊物体重力.（最大限度的意思是在绳子能承受的范围内）

选C， 在大西洋西部加勒比海那儿。

西印度群岛位于大西洋及其属海墨西哥湾、加勒比海之间。西印度群岛总面积约为24万平方公里。西印度群岛是由1200多个岛屿和暗礁、环礁组成。主要岛屿为牙买加岛、古巴岛等。其中最大岛屿是古巴岛。群岛自北向南分为巴哈马和大安的列斯、小安的列斯三大组群岛及特立尼达和多巴哥岛四部分。西印度群岛原为土著居民印第安人的故乡。从15世纪末叶开始，相继沦为西班牙、英国、荷兰、法国、丹麦和美国的殖民地。由于长期殖民统治，印第安人几被赶尽杀绝，从非洲贩运来的黑人及其后裔成为该区主要的劳动力，黑白混血种人形成了新的民族。西印度群岛地区包括从佛罗里达半岛尖端穿过加勒比海延伸到南美洲北岸的一切岛屿。这里有23个政治实体，其中有些很小。西印度群岛的一致性和差异性来源于4个因素的结合，一个是地理因素，其他3个是历史因素。

　　西印度群岛位于大西洋以及其属海墨西哥湾、加勒比海之间，北部隔着佛罗里达海峡和美国佛罗里达半岛相望，是拉丁美洲的一部分。西印度洋由1200多个岛屿和暗礁、环礁组成，较为著名的岛屿有古巴岛、海地岛、牙买加岛等。 　　西印度群岛位于哪里 　　西印度群岛的名称，实际上来源于哥伦布的错误观念，1942年时，意大利著名航海家哥伦布横渡大西洋，在10月2日登上巴哈马群岛东侧的圣萨尔瓦多岛，他误认为该岛是东方印度附近的岛屿，并将这里的居民称为印第安人，后来因为这个群岛位于西半球，所以就将其称为西印度群岛，并一直沿用至今。 　　西印度群岛原本是印第安人的故乡，但是因为西方的殖民扩张，从15世纪末叶开始，这里就相继沦为了西班牙、英国、荷兰、法国、丹麦以及美国的殖民地，长期接受殖民统治，当地的印第安人几乎被屠杀殆尽，此后从非洲贩卖过来的黑人以及其后裔就成为这里主要的劳动力，黑白混血种人在这里形成了新的民族。 　　 西印度群岛地理位置优越 　　新印度群岛是处于南北美洲之间，是大西洋经过巴拿马运河通向太平洋的海上必经之路，在海上运输中占据重要的战略位置，这里的主要港口有哈瓦那、圣地亚哥、金斯顿等等，因其海上贸易丰富，景色优美，近些年来旅游业飞速发展，称为世界著名的旅游胜地。

　　1、滑轮组的机械效率有关因素：被提物体的重量，G越大，机械效率越高，滑轮自重，滑轮组如果越多，虽然省力但是无用功多，机械效率越小。绳与滑轮之间的摩擦。 　　2、机械效率是指机械在稳定运转时，机械的输出功（有用功量）与输入功（动力功量）的百分比。主要内容包括滑轮组,斜面效率，杠杆转动,常见效率,增大效率。