Unit1ScienceandScientistsDiscoverUsefulStructures表语从句课件-高中英语人教版选择性2

Unit1ScienceandScientistsDiscoveringUsefulStructuresConductingexperimentsishisjob.Conductingexperimentsiswhathedoeseveryday.表语从句是指______________________,紧跟在________之后，对主语进行解释、说明，使主语的内容具体化。系动词在句子中充当表语的从句Lead-in:FindthepredicativeclauseLinkverbs系动词be感官：looksoundsmelltastefeel变化/持续：becomegrowturnfallgetgocomerunApredictiveclauseisintroducedby....?standremainkeepstayWhatIwanttosayisthatIamtired.Shedoesn’tknowwhethershelikeshimornot.Hewassenttothehospital.That’sbecausehewasill.

Itsoundsasifsomebodywasknockingatthedoor.Thereasonwhyhewaslatewasthathemissedthebusthismorning.Judge:Whichisapredicativeclause?表从的连接词从句缺主宾表定what物,who人，whom人宾which哪一个,

whose谁的从句不缺主宾表定（不作成分）that,whether无意义，是否（作状语）when,where,how,why,because强调无论+ever表语从句的引导词连接代词：which(ever)1.Thequestionis

.问题是哪个学生英语最好。2.Ireadaboutitinsomebookoranother,butwhatIdon'tknowis

.我在某本书里读到过，但我不知道是哪一本书。总结：which在引导表语从句时,常在句中充当______,表示：__________whichstudentisthebestatEnglishwhich(book)itis哪一个定语连接代词：who(ever)、whom(ever)、whose、what(ever)1.Youcanbe__________youwanttobe.你可以成为你想做的任何人。2.Thequestionis__________causedtheaccident.问题是什么造成了这场事故。3.Themostimportantthingis__________responsibilityitis.最重要的就是它是谁的责任。4.Thisis________myfatherhastaughtme--tobeanhonestman.这就是我父亲教给我的--做一个诚实的人。总结：who(ever)、whom(ever)、whose、what(ever)在从句中作__________、_____________、________、________。whoeverwhatwhosewhat主语宾语表语定语从属连词：

that、whether(不能用if)1.Mybeliefis__________Iwillsucceedbyworkinghard.我的信念是通过努力我会成功。2.Themostpleasantthingoftherainyseasonis________onecanbeentirelyfreefromdust.雨季最令人愉快的事情是完全没有灰尘。3.Theproblemis______________wecanfindthemthere.问题是我们能否在那里找到他们。whetherthatthat总结：that在从句中不充当成分，也没有实际意义，且不可省略；whether也不能省略，意思为：是否。连接副词：

when、where、why、how1.Thisis____________Idon'tagreewithyou.这就是我不同意你的地方。2.Thequestionis__________wecangetintouchwithhim.问题是我们怎样才能和他联系上。3.ItrainedheavilylastnightwhenIwentbackhome.Thatis_________Igotwetthrough.

那就是为什么我被淋湿了。总结：when、where、why、how引导从句，在从句中作________，表示时间、地点、原因、方式。wherehowwhy状语Thisis__________Iwant.MyEnglishislimited.Thisis_______IhatereadingEnglishbooks.Thevillageis_________Iusedtospendmyholiday.Itis___________Ireallylovethewayhebehaves.Thetroubleis__________weareshortoffunds.Myproblemis__________coatissuitableforme.I'

d

like

to

startmyownbusiness—that’s________IwanttodoifIhadthemoney.WhatIwanttoknowis_______willsupportme.whatwherewhybecausethatwhichwhatwho即学即练表从易错点1.区分that和what总结：that引导表语从句时，是连词，在从句中不作成分；what是连接代词，引导表语从句时，在从句中作主语、宾语或表语。1.Thefactis_______wetendtomakemistakeswhenwearenervous.2.Thisis_________Iwanttosay.3.Thequestionis_________causedtheaccident.4.Thetroubleis_________shehaslosthisaddress.thatwhatthatwhat2.区分because和why1.Sheoftencomeslate.That's______________shehasababytotakecareof.她经常迟到。那是因为她有一个孩子要照顾。2.Shehasababytotakecareof.That's_____________sheoftencomeslate.她有一个孩子要照顾。那就是她经常迟到的原因。总结：because引导表语从句时强调原因，

why引导表语从句时强调结果。whybecause总结：

当表语从句陈述原因时：It,This,That开头做主语，引导词用because.

It/This/Thatisbecause....②主语为reason（why）

时，引导词用that.

Thereason(why)....isthat....

Idosomanythingsforyou.ItisbecauseIloveyou.Shewaslateforclass.Thatwasbecauseshemissedtheearlybus.

Thereasonwasthatyoudon’ttrusther.

Thereasonwhyshewaslatewasthatshemissedtheearlybus.3.区分that和because1.Heiscarelessandirresponsible.Thatwas_______hewasfired.2.Hewasfired.Thatwas_________heiscarelessandirresponsible.3.Thereason_______hewasfiredwas________hewascarelessandirresponsible.4.Ilostthegame.Thereasonwas_________Iunderestimatedmycompetitors.5.Thereason_______Ilostthegamewas_______Iunderestimatedmycompetitors.whybecausewhythat即学即练whythatthatPractice！1.［2013·安徽］Fromspace,theearthlooksblue.Thisis_________

aboutseventy-onepercentofits

surfaceiscoveredbywater.2.［2014·四川］Grandmapointedtothehospitalandsaid,"That’s

__________Iwasborn．"3.［2014·北京］Thebestmomentforthefootballstarwas_______hescoredthewinninggoal.4.[2018·江苏]

Byboatistheonlywaytogethere,whichis_______

wearrived.5.[2018·北京]

Thisis

myfatherhastaughtme—toalwaysfacedifficultiesandhopeforthebest.6.[2021·新高考1卷]Theamazingthingaboutthespringis________

thecolderthetemperaturegets,thehotterthespring!becausewherewhenhowwhatthat【高考真题】Everyoneknew1.

Wendywasafamouswriter,butnooneknew2.

shecamefromand3.

shewasbornin1961wasstillamystery.4.