搜索
名词性从句----表语从句名词性从句nounclause主语从句subjectclause宾语从句objectclause表语从句predicativeclause同位语从句appositiveclause1.表语从句的定义Thequestioniswhowilldoit.复合句Thequestionisdifficult.简单句（表）表语从句（表）2.表语从句的构成Thisiswhyhedidit.主语系动词表语从句结构是“主语+系动词+表语从句”。系动词：表示状态的连系动词有:be;appear;seem;keep;remain;continue;stay;prove表示感觉的连系动词有:look;feel;smell;sound;taste等表示转变的连系动词有:become;fall;get;go;grow;turn等连接词：that/whether/asif/asthough连接代词：who/whom/whose/which/what连接副词：when/where/why/how/because引导词的用法（一）that在表语从句中,又。Thefactisthathehasn’tyetrecoverfromillness.Thereasonwhyhehastogoisthathismotherisillinbed.既不充当成分也不能省略•whether在表语从句中表,但不充当句子的成分。if引导表语从句.如:1.Thequestioniswhetheritisworthdoing.“是否”不能引导词的用法（二）what在表语从句中充当______________表示____________________________.1.Thequestioniswhatcausedtheaccident.2.Thatmountainisnolongerwhatitusedtobe.3.Whathetoldyouwaswhatwehaddiscussedatthemeeting.主语、宾语或表语什么，什么样子，或所…的（人或事）引导词的用法（三）who在表语从句中充当______________表示____.1.Theproblemiswhocoulddothework.2.Mytroubleiswho(whom)Icanturnto.主语、宾语或表语谁引导词的用法（四）which在引导表语从句时,常充当_________表示。如：Ireadaboutitinsomebookoranother,butwhatIdon’tknowiswhich(book)itis.定语,表语其中哪一个引导词的用法（五）由asif,asthough引导表语从句，表示好像。句子中的系动词常用look,appear,seem等。1.Itlooksasifitisgoingtorain.引导词的用法（六）1.ThereasonwhyIwaslatewasthatImissedthetrain.引导词的用法（七）当表语从句句子完整，常常用why,when,where,how等引导Thisishowhedidit.Thatiswhythebrotherswantedtomakeabet.That’swhywe’vegivenyoutheletter.引导词的用法（八）表语从句引导词注意事项1.that引导表语从句时不能省.2.if不能引导表语从句.3.除that外的所有引导词都有自己的意义。1.I’mafraidhe’smoreofatalkerthanadoer,whichis_____heneverfinishesanything.A.thatB.whenC.whereD.why验收练习题2.---IprefershuttingmyselfinandlisteningtomusicalldayonSundays.---That’s____Idon’tagree.Youshouldhaveamoreactivelife.A.whereB.howC.whenD.what3.---Hi,Peter.Youseemtohavegainedalotofweight.---Well,goodfood,notenoughexercise.Thatis____Igotfat.A.howB.whenC.whatD.whether验收练习题4.I’dliketostartmyownbusiness---that’s____I’ddoifIhadthemoney.A.whyB.whenC.whichD.what5.WhentheInternetwascreatedin1969,onlyafewpeopleknewaboutit.That’s____itcameintoexistenceasasecretUSgovernmentproject.A.whenB.whyC.howD.because验收练习题6.Thelasttimewehadgreatfunwas____wewerevisitingtheWaterPark.A.whereB.howC.whenD.why7.That’s___thePartycalledonustodo.A.whyB.whatC.howD.that验收练习题8.Thereasonis___heisunabletooperatethemachine.A.becauseB.whyC.thatD.whether9.Thatis___theyseparated.A.thatB.whatC.whichD.where10.Janeisnolonger___shewasfouryearsago.A.whatB.whichC.thatD.when