what引导名词性从句的用法.ppt

what引导名词性从句的五种用法,After_seemedaverylongtime,Iopenedmyeyesandfoundmyselfinbed!A.whatB.whenC.thatD.which,A,Idontknowwhatyoumean.,什么,一、用法归纳表示“的东西或事情”“所的”，相当于“thethingthat.;allthat.;everythingthat.”Theyvedonewhattheycandotohelpher.他们已经尽力帮助了她。Hesaveswhatheearns.他赚多少，积蓄多少。WhatMaryisisthesecretary.玛丽的职务是秘书。,2.表示“的人或的样子”（指抽象意义的人）相当于thepersonthat（见66）：Heisnolongerwhathewas.他已经不是以前的那个样子。Heiswhatisgenerallycalledatraitor.他就是人们通常所说的叛徒。WhohasmadeFredheisnow?,what,3.表示“的数量或数目”,相当于theamount/numberthatOurincomenowisdoublewhatitwastenyearsago.我们现在的收入是10年前的两倍。Thenumberofthestudentsinourschoolistentimeswhatitwasbeforeliberation.现在我校学生的数量是解放前的10倍。,4.表示“的时间”,相当于thetimethat：Afterwhatseemedlikehourshecameoutwithabittersmile.似乎过了几个小时他才苦笑着出来。Theyounggirlwastoofrightenedtospeak,standingthereforwhatseemedlikehours.小女孩吓得不敢说话，在那儿站了几个小时。,5.表示“的地方”,相当于theplacethatThisiswhattheycallSaltLakeCity.这就是他们称为盐湖城的地方。In1492,ColumbusreachedisnowcalledAmerica.,what,归纳总结：当名词性从句缺少主语、宾语、表语，而缺少的这个词不是指具体的人时，要首先考虑what,巩固练习:1.Shehaschangedalot.Shesnolonger_sheusedtobe.A.thatB.whatC.whichD.不填2.Thetobaccowhichisusedtomakecigaretteswasfirstgrownin_isnowpartoftheUnitedStates.A.whichB.thatC.allD.what3.Nolonger_Tomtheman_heusedtobe.A.will;whatB.was;whatC.will;thatD.is;that4.WhathasmadeChina_sheistoday?A.thatB.whatC.asD.which5.Thenumberofthestudentsofthecollegehasreached8,000,twice_itwaswhenthecollegewasopenedtenyearsago.A.whatB.asmuchC.whichD.that,D,B,A,D,B,二、用法说明(1)这样用的what相当于“先行词+关系代词”，所以其前不能有先行词：你喜欢什么就拿什么吧。正：Youcanhavewhatyoulike./Youcanhaveeverything(that)youlike.误：Youcanhaveeverythingwhatyoulike.,二、用法说明(2)有时what可用作限定词，其后修饰一个名词（见42）：IgavehimwhatbooksIhad.我把我所有的书都给他了。Hegavemewhatmoneyhehad.他把身边带有的钱全给了我。,(3)what后的名词可以是复数名词或不可数名词，但通常不能是单数可数名词：误：IgavehimwhatbookIhad.,AistoBwhatCistoD句型分析,句型:AistoBwhatCistoD.本句型的意思是“A对B而言正如C对D一样”