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1、as用法小结介词3连词1关系代词2副词446.练习固定词组55Lookatthefollowingsentenceswith“as”andtellingitspartofthespeech.1Astimegoesby,wegraduallyrealizethatit’snoteasyforourparentstobringusup.2IreadtheletterasIwalkedalongtheriver.3Theyregardhimastheirleader.4HecametoChinaasatouristfiveyearsago.1+2:as做连词3+4:as做介词Lookatthef
2、ollowingsentenceswith“as”andtellingitspartofthespeech.5Asyouknow,I’vedecidedtoleaveattheendofthemonth.6Paulrunsfast,butIrunjustasfast.(Irunjustasfastashedoes.)7ShewillgothereaswellasLucy.8It’ssaidthataslongasamanhasasenseofhumor,hewillconquerthefemale.5:as作关系代词6:as1作副词，as2作连词7+8:as引导的习惯性短语（1）as做连词
3、As引导状从，可表时间、原因、让步、方式等。1Strongasheis,heisafraidofinjection.2.Doctorassheis,shecan’tcureherowndisease.3.Asthewealthofthecountryincreases,morewastewillbeproduced.4.AsIwasgoingoutthetelephonerang.5.Astheweatherwasfine,wedecidedtowalkedtotherestaurant.6.WheninRome,doasRomansdo.1+2:as引导让步状语从句3+4:as引导时间状
4、语从句as引导原因状语从句as引导方式状语从句Diligenthewas,hefailedintheEnglishfinalexam.A.ThoughB.althoughC.asD.likeAlthoughhewasdiligent,hefailedintheEnglishfinalexam.√C,hedoesgetirritatedwithhersometimes.AshelikeshermuchMuchthoughhelikesherThoughmuchhelikesherMuchashelikesherD（2）as做关系代词关系代词as引导限定性定语从句时，一般用于固定结构当中；引导
5、非限定性定语从句时，一般翻译成“恰如，正如”，修饰一整个句子或短语。1.①用于thesame...as结构中ThisisthesamebookasIreadlastweek.②用于such...as结构中Idon’tlikesuchbooksasherecommends.③用于"so+adj.+a/an+n.(单数)+as"结构中IamnotsostrongamanasIwas.我已经没有从前那么强壮了。as单独引导定语从句时，先行词是一个句子或短语。可以放句首，也可以放句末。放句首居多。例如：(1)Asisoftenthecase,sheislate.恰如平常一样，她又迟到了。(先行词是
6、整个主句)(2)Heisverycareful,ashisworkshows.他非常小心，恰如他的工作所展现出来的一样。(先行词是整个主句)类似的常用表达还有：Asweallknow,…Asisknowntoall,…Asismentioneddiscussedabove,…Aswehavementioneddiscussedabove,…isgenerallyaccepted,economicalgrowthisdeterminedbythesmoothdevelopmentofproduction.A.WhatB.thatC.itD.AsDisknowntotheworld,Mar
7、kTwainisagreatAmericanwriter.A.ThatB.whichC.asD.itC（3）as作介词的用法as作介词，意思是"作为"，"以……身份"。例如：HecametoChinaasatouristfiveyearsago.常用于以下短语结构:lookatseeconsiderrecognizeviewthinkoftreatacknowledgeregardlookuponde
