Unit 1 Science and Scientists Discover Useful Structures 表语从句 课件 2025-2026学年高中英语人教版选择性必修第二册

DiscoveringusefulstructuresUNIT1SCIENCEANDSCIENTISTS在复合句中，位于_________之后，充当________的名词性从句称作表语从句。表语系动词可以接表语从句的系动词有:状态系动词be;感官系动词feel,look,sound,taste,smell;seem,appear持续系动词remain,keep,stay、lie、stand;变化系动词become,get,grow,turn,go,come,run,fall;终止系动词prove,turnout.表语从句的概念Ingeneral,doctorsinthosedayshadtwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywas______badaircausedthedisease.Anotherwas______cholerawascausedbyaninfectionfromgermsinfoodorwater.(Para.2)Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemed______thewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.(Para.3)一、that引导的表语从句thatthatthatIngeneral,doctorsinthosedayshadtwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywas______badaircausedthedisease.Anotherwas______cholerawascausedbyaninfectionfromgermsinfoodorwater.(Para.2)Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemed______thewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.(Para.3)一、that引导的表语从句thatthatthatthat

____意义，在表语从句中______成分,起______作用，________省略。无不充当连接不能Thequestionis_________wecanrelyonhim.Heoftentellslies.Thequestionis_________wecanfinishthetaskontime,forwehaveonlythreedaysleft.二、whether引导的表语从句whetherwhetherThequestionis_________wecanrelyonhim.Heoftentellslies.Thequestionis_________wecanfinishthetaskontime,forwehaveonlythreedaysleft.二、whether引导的表语从句whetherwhether思考：可以用“if”来引导吗？连接词whether起_____作用，意为“_________________”，在句中也不作任何成分（注意：if

______引导表语从句)。连接是否、究竟、到底不能三、what,which,who,whom,whose等引导的表语从句Tomisnolonger_______heusedtobe.Thequestionis_______ofusshouldcomefirst.(我们两个中的哪一个)Theproblemis______

isreallyfitforthehardjob.Theimportantthingis_______nameshouldbeputonthetopofthelist.whatwhichwhowhose三、what,which,who,whom,whose等引导的表语从句Tomisnolonger_______heusedtobe.Thequestionis_______ofusshouldcomefirst.(我们两个中的哪一个)Theproblemis______

isreallyfitforthehardjob.Theimportantthingis_______nameshouldbeputonthetopofthelist.whatwhichwhowhose连接代词what,which,who,whom,whose

除在句子中起______作用外，还可在从句中作_____、_____或______，且各有词义。连接主语表语定语四、where,when,why,how引导的表语从句That’s

_______

Ican’tagreewithyou.Thisis

______

Sarawaslateforthemeeting.(Shemissedtheearlybus.)Thisis

_____

theyovercomethedifficulties.Mystrongestmemoryis

______

IattendedanAmericanweddingasachild.wherewhyhowwhen四、where,when,why,how引导的表语从句That’s

_______

Ican’tagreewithyou.Thisis

______

Sarawaslateforthemeeting.(Shemissedtheearlybus.)Thisis

_____

theyovercomethedifficulties.Mystrongestmemoryis

______

IattendedanAmericanweddingasachild.wherewhyhowwhen连接副词where,when,why,how除在句中起______作用外，在从句中还充当_______、______、______或______状语，本身具有词义。连接时间地点方式原因Itseems__________________hedoesn’tknowtheanswer.Itlooks__________________itisgoingtorain.五、asif/asthough引导的表语从句asif/asthoughasif/asthoughItseems__________________hedoesn’tknowtheanswer.Itlooks__________________itisgoingtorain.五、asif/asthough引导的表语从句asif/asthoughasif/asthoughasif/asthough引导的表语从句常置于_________look,seem,sound,be,become等_________。系动词后面Thereasonwhyheislateforschoolis________

hemissedthebus.2.Whywedecidedtoputoffthefootballmatchis

________

theweatherwastoobad.thatthatAttentionThereasonwhyheislateforschoolis________

hemissedthebus.2.Whywedecidedtoputoffthefootballmatchis

________

theweatherwastoobad.thatthat当主句的主语是_____________或

why引导的__________时常用______来引导表语从句，而不用because。thereason主语从句thatAttention3.Ithinkthat’s

_____

hewassoangry.4.Ithinkitis________youaredoingtoomuch.5.Thereason______hewassolateis_____itwasraininghard.whybecausewhythatAttention3.Ithinkthat’s

_____

hewassoangry.4.Ithinkitis________youaredoingtoomuch.5.Thereason______hewassolateis_____itwasraininghard.whybecausethat/this/it+is/was+why+________(原因/结果)

表示“_________________________”that/this/it+is/was+because+_______(原因/结果)

表示“________________________”thereasonwhy…isthat…中why是引导_________，that引导的是_________，表示“___________________”。这/那就是……的原因结果这/那就是因为……原因whythat定语从句表语从句……的原因是……Attention6.Mysuggestionisthatwe____________(go)andhelphim.7.Myadviceisthatwe____________(get)therebytrain.(should)go(should)getAttention6.Mysuggestionisthatwe____________(go)andhelphim.7.Myadviceisthatwe____________(get)therebytrain.(should)go(should)get当主句的主语是表示建议（suggestion,advice）、命令（order）、要求（request,proposal）、计划（plan）等的名词时，表语从句要用虚拟语气，即（