【课件】Unit+1Discovering+useful+structures表语从句语法课件人教版（2019）选择性必修第二册

高中英语新人教版选择性必修二SCIENCEANDSCIENTISTSXB2U1-1ReadingforWriting读写高中英语新人教版选择性必修二SCIENCEANDSCIENTISTSXB2U1DiscoveringusefulstructureAnswerthequestions.Analyzethecomponentsofthesentence.Onetheorywasthatbadaircausedthedisease.Anotherthoerywasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Whatwerethetwocontradictorytheoriestoexplainhowcholeraspread?Whatwasthetruthaboutthespreadofcholera?Functionasthepredicative(behindalinkeverb系动词）inacomplexsentence.在主从复合句充当表语的从句叫表语从句Predicativeclause表语从句表语从句的定义PART01PredicativeclauseWhatIwanttosayisthatIamtired.Shedoesn’tknowwhethershelikeshimornot.Hewassenttothehospital.That’sbecausehewasill.

Itsoundsasifsomebodywasknockingatthedoor.ThereasonwhyhewaslatewasthathemissedthetrainthismorningJudge:Whichisapredicativeclause?引导表语从句的系动词PART02Linkverbs系动词状态类：beseemappearlookkeepstayremainPredicativeclause感官类：looksoundsmelltastefeel变化类：becomegrowturnfallgetgo终止类：proveturnoutbe动词、look、grow、turnout、seem、sound、appear、become、prove、look、smell、taste、turn、feel、get、remain、stay、go、keep、PredictiveclauseUnderstandingscienceandpushingtheboundariesofscienceiswhatmakesmeimmenselysatisfied.—BillGatesThenextmajorexplosionisgoingtobewhengeneticsandcomputerscometogether.—AlvinTofflerThedoctorhasbeentaughttobeinterestednotinhealthbutindisease.Whatthepublicistaughtisthathealthisthecurefordisease.—AshleyMontaguResearchiswhatI'mdoingwhenIdon'tknowwhatI'mdoing.—WernhervonBraunApredictiveclauseisintroducedby?表语从句的引导词PART03connectives连接词连词（在从句中不作成分）：

thatwhetherasifasthoughbecauseWhatisapredicativeclause?连接代词（在从句中作主语、宾语、表语、定语）：

what/whateverwhich/whicheverwho/whoeverwhom/whomeverwhose连接副词（在从句中作状语）：

whenwherewhyhow即学即练learningandpracticeThisis__________Iwant.MyEnglishislimited.Thisis_______IhatereadingEnglishbooks.Thevillageis_________Iusedtospendmyholiday.Itis___________Ireallylovethewayhebehaves.Thetroubleis__________weareshortoffunds.Myproblemis__________coatissuitableforme.I'

d

like

to

startmyownbusiness—that’s________IwanttodoifIhadthemoney.WhatIwanttoknowis_______willsupportme.whatwherewhybecausethatwhichwhatwho表语从句的语法规则PART04表语从句的语法规则Thequestionishow(canI/I

can)makeyouunderstandtheknowledge.Rule1:表语从句和宾语从句、主语从句一样，要用陈述语序：主语+谓语。√RulesforusingapredicativeclauseRule2

:if/whether均表示是否，但引导表语从句（主语从句、同位语从句）只能用whether.Thequestionis(whether/if)itisworthwhiletodoit.复习：引导宾语/主语从句时只用whether,不用if的情况宾语从句Whethertodo宾语从句Whether……ornot介词后的宾语从句主语从句句首只能用whether√表语从句的语法规则ThegrammarrulersofthepredicativeclauseRule3:

表语从句的虚拟语气在表示“建议，命令、请求”的名词advice,suggestion,request,proposal等后面的表语从句中，谓语动词用“shoulddo”，should可省略Myproposalisthatwe(should)start

earlytomorrow.Iproposethatwe

(should)startearlytomorrow.Itisproposedthatwe(should)start

earlytomorrow.表语从句的语法规则ThegrammarrulersofthepredicativeclauseRule4:asif/asthough引导的表语从句常跟在look,seem,sound,feel等后面语气：若表示真实情况：用陈述语气若表示非真实情况：用虚拟语气Darkcloudsaregathering.Itlooksasifit’sgoingtorain.Itseemedasifthenightwouldneverend.表语从句的语法规则Thegrammarrulersofthepredicativeclauseasif/asthough引导的表语从句的虚拟语气：

若跟现在事实不符：过去式（be动词用were）若跟过去事实不符：haddone

若跟将来事实不符：would/could+动词原形Helooksasifhekneweverythingintheworld.Hefeltasifhehadmetthisyoungladyforalongsomewhere.

即学即练learningandpracticeMysuggestionisthatwe__________(go)tohospitalatonce.Whenapencilispartlyinaglassofwater,itlooksasifit_______(be)broken.Myideaisthatwe___________(get)morepeopletoattendtheconference.Thelittlegirlappearedasifshe___________(be)agrown-up.Shelooksasifshe_________(be)tenyearsyounger.

shouldgowereshouldgethadbeenwere表语从句的语法规则ThegrammarrulersofthepredicativeclauseRule5: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主语为reason（why）

时，引导词用that.

Thereason(why)isthat

Idosomanythingsforyou.ItisbecauseIloveyou.Shewaslatethismorning.Thatwasbecauseshemissedtheearlybus.

Thereasonwasthatyoudon’ttrusther.

Thereasonwhyshewaslatewasthatshemissedtheearlybus.即学即练learningandpractice1.Heiscarelessandirresponsible.Thatwas_______hewasfired.2.Hewasfired.Thatwas_________heiscarelessandirresponsible.3.Thereason_______hewasfiredwas________hewascarelessandirresponsible.whybecausewhythat语篇中的衔接连贯：语法、词汇、逻辑、语音（口语）Tom:SpellSTOPthreetimes.Jerry:_________________Tom:Whatwillyoudowhenyoucometoagreenlight?Jerry:_________________Tome:Thenwhatwillyoudowhenyoucomearedlight?Jerry:__________________Tom:What?AtaREDlight?Jerry:No,Iwillstopfirsttoseetheclourofthelight.______________A:STOP,STOP,STOP.B:Idon'tknow.A:Iwillstop.B:Yes,hewasathome.A:Iwillstop.B:Iwillgoon.A:ThenIwillgoon.B:Whatdoyoumean?√√√√词汇手段lexicalconnector语法手段

grammaticalconnector语音手段phonecticconnector逻辑手段logicalconnector即学即练learningandpracticeFinishActivity3onPage5.Whatconnectingruleisused?Key:ACBEDQuetions

1.WhawasDavid'sgroup'sresearch?2.Whatwastheirproblem?3.Whatwastheirkeyissuse?4.Whatdidtheycareabout?表语从句定义：在复合句中充当表