Unit 1 Science and Scientists Discover Useful Structures 表语从句课件-高中英语人教版（2019）选择性必修第二册-1

Unit1SCIENCEANDSCIENTISTSPredicativeClauses表语从句Tolearnthestructureofpredicativeclause.Toknowhowtojudgethepredicativeclause.Tomastertheconjunctionsofpredicativeclause.定义﹑结构和如何判断表从连接词注意点010203CONTENT①Hisdreamis

todefeatCholera.②Hefinallybecame

asuccessfulscientist.③Thecausesofthediseaseremain

unknowntothepublic.④Theresultsoftheexperimentsound

reasonable.Observeandanalyzewhatpartdoestheunderlinedpartserveasineachsentence.表语Leadin

DefinitionPART01①WhatJohnSnowshowedtotheworldwas

howcholeracouldbeovercome.②TheexactplacesSnowmarkedonthemapwere

whereallthosewhodiedhadlived.③Snow’sfindingwas

thatthepumpwatercarriedcholeragerms.系动词表语从句Observethesentencesandhinkaboutwhatisapredicativeclause.系动词表语从句表语从句系动词在主从复合句中充当表语的从句叫表语从句。位于主句的系动词之后，对主语进行解释、说明，使主语的内容具体化。表语从句要用陈述语序。1.Thedefinitionofpredicativeclause.2.Thestructureofpredicativeclause.主语+系动词+连接词+简单句Thequestioniswhyhedidit.表语从句系动词的分类1.感官类系动词（sound,look,taste,smell,feel)2.变化类系动词(get,turn,go,become…)be动词3.状态系动词保持类系动词（keep,remain,stay）似乎类系动词（

seem,appear

）（am,is,are,was,were)可以接表语从句的系动词有:表语从句的引导词PART021.Ingeneral,doctorsinthosedayshadtwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywas______badaircausedthedisease.Anotherwas______cholerawascausedbyaninfectionfromgermsinfoodorwater.(Para.2)

2.Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemed______thewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.(Para.3)1.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1.Thequestionis_________

wecanrelyonhim.Heoftentellslies.2.Thequestionis_________

wecanfinishthetaskontime,forwehaveonlythreedaysleft.2.whether引导的表语从句whetherwhether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3.what,which,who,whom,whose等引导的表语从句1.Tomisnolonger_______heusedtobe.2.Thequestionis_______ofusshouldcomefirst.(我们两个中的哪一个)3.Theproblemis______

isreallyfitforthehardjob.4.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4.where,when,why,how引导的表语从句1.That’s

_______

Ican’tagreewithyou.2.Thisis

______

Sarawaslateforthemeeting.(Shemissedtheearlybus.)3.Thisis

_____

theyovercomethedifficulties.4.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1.Itseems__________________hedoesn’tknowtheanswer.2.Itlooks__________________itisgoingtorain.5.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_________。系动词后面连接词连词:

that,whether,asif,asthough,because…连接副词:

when,where,how,why,…+ever连接代词:

what,who,whom,whose,which,…+ever（在从句中不作成分）（在从句中作主语、宾语、表语、定语）（在从句中作状语）Summary:即学即练Thisis__________Iwant.MyEnglishislimited.Thisis_______IhatereadingEnglishbooks.Thevillageis_________Iusedtospendmyholiday.Heismyfavoritesinger.Itis________Ireallylovethewayhebehaves.Thetroubleis__________weareshortoffunds.Myproblemis__________coatissuitableforme.I‘

d

like

to

startmyownbusiness—that’s____IwanttodoifIhadthemoney.WhatIwanttoknowis_______willsupportme.whatwherewhybecausethatwhichwhatwho注意点PART03Thereasonwhyheislateforschoolis________

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that3.Hewasill.That’s________hewassenttothehospital.

4.Iamlatethismorning.Thatis________Ileftmybagonthesubway.5.Thereason______hewassolateis_____hemissedtheearlybus..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……6.Mysuggestionisthatwe____________(go)andhelphim.7.Myadviceisthatwe____________(get)therebytrain.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（should）+动词原形。(should)go(should)get即学即练1.Heiscarelessandirresponsible.Thatwas_______hewasfired.2.Hewasfired.Thatwas_________heiscarelessandirresponsible.3.Thereason_______hewasfiredwas________hewascarelessandirresponsible.4.Mysuggestionisthatwe____________(get)morestudentstotakepartintheactivitywhybecausewhythat(should)getSummary：1.表语从句的结构:主语+系动词+关系词

+简单句2.引导词