【課件】Unit+1Discovering+useful+structures表語從句語法課件人教版（2019）選擇性必修第二冊

高中英語新人教版選擇性必修二SCIENCEANDSCIENTISTSXB2U1-1ReadingforWriting讀寫高中英語新人教版選擇性必修二SCIENCEANDSCIENTISTSXB2U1DiscoveringusefulstructureAnswerthequestions.Analyzethecomponentsofthesentence.Onetheorywasthatbadaircausedthedisease.Anotherthoerywasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Whatwerethetwocontradictorytheoriestoexplainhowcholeraspread?Whatwasthetruthaboutthespreadofcholera?Functionasthepredicative(behindalinkeverb系動詞）inacomplexsentence.在主從復合句充當表語的從句叫表語從句Predicativeclause表語從句表語從句的定義PART01PredicativeclauseWhatIwanttosayisthatIamtired.Shedoesn’tknowwhethershelikeshimornot.Hewassenttothehospital.That’sbecausehewasill.

Itsoundsasifsomebodywasknockingatthedoor.ThereasonwhyhewaslatewasthathemissedthetrainthismorningJudge:Whichisapredicativeclause?引導表語從句的系動詞PART02Linkverbs系動詞狀態(tài)類：beseemappearlookkeepstayremainPredicativeclause感官類：looksoundsmelltastefeel變化類：becomegrowturnfallgetgo終止類：proveturnoutbe動詞、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?表語從句的引導詞PART03connectives連接詞連詞（在從句中不作成分）：

thatwhetherasifasthoughbecauseWhatisapredicativeclause?連接代詞（在從句中作主語、賓語、表語、定語）：

what/whateverwhich/whicheverwho/whoeverwhom/whomeverwhose連接副詞（在從句中作狀語）：

whenwherewhyhow即學即練learningandpracticeThisis__________Iwant.MyEnglishislimited.Thisis_______IhatereadingEnglishbooks.Thevillageis_________Iusedtospendmyholiday.Itis___________Ireallylovethewayhebehaves.Thetroubleis__________weareshortoffunds.Myproblemis__________coatissuitableforme.I'

d

like

to

startmyownbusiness—that’s________IwanttodoifIhadthemoney.WhatIwanttoknowis_______willsupportme.whatwherewhybecausethatwhichwhatwho表語從句的語法規(guī)則PART04表語從句的語法規(guī)則Thequestionishow(canI/I

can)makeyouunderstandtheknowledge.Rule1:表語從句和賓語從句、主語從句一樣，要用陳述語序：主語+謂語。√RulesforusingapredicativeclauseRule2

:if/whether均表示是否，但引導表語從句（主語從句、同位語從句）只能用whether.Thequestionis(whether/if)itisworthwhiletodoit.復習：引導賓語/主語從句時只用whether,不用if的情況賓語從句Whethertodo賓語從句Whether……ornot介詞后的賓語從句主語從句句首只能用whether√表語從句的語法規(guī)則ThegrammarrulersofthepredicativeclauseRule3:

表語從句的虛擬語氣在表示“建議，命令、請求”的名詞advice,suggestion,request,proposal等后面的表語從句中，謂語動詞用“shoulddo”，should可省略Myproposalisthatwe(should)start

earlytomorrow.Iproposethatwe

(should)startearlytomorrow.Itisproposedthatwe(should)start

earlytomorrow.表語從句的語法規(guī)則ThegrammarrulersofthepredicativeclauseRule4:asif/asthough引導的表語從句常跟在look,seem,sound,feel等后面語氣：若表示真實情況：用陳述語氣若表示非真實情況：用虛擬語氣Darkcloudsaregathering.Itlooksasifit’sgoingtorain.Itseemedasifthenightwouldneverend.表語從句的語法規(guī)則Thegrammarrulersofthepredicativeclauseasif/asthough引導的表語從句的虛擬語氣：

若跟現在事實不符：過去式（be動詞用were）若跟過去事實不符：haddone

若跟將來事實不符：would/could+動詞原形Helooksasifhekneweverythingintheworld.Hefeltasifhehadmetthisyoungladyforalongsomewhere.

即學即練learningandpracticeMysuggestionisthatwe__________(go)tohospitalatonce.Whenapencilispartlyinaglassofwater,itlooksasifit_______(be)broken.Myideaisthatwe___________(get)morepeopletoattendtheconference.Thelittlegirlappearedasifshe___________(be)agrown-up.Shelooksasifshe_________(be)tenyearsyounger.

shouldgowereshouldgethadbeenwere表語從句的語法規(guī)則ThegrammarrulersofthepredicativeclauseRule5:當表語從句陳述原因時：It,This,That開頭做主語，引導詞用because.

It/This/Thatisbecause主語為reason（why）

時，引導詞用that.

Thereason(why)isthat

Idosomanythingsforyou.ItisbecauseIloveyou.Shewaslatethismorning.Thatwasbecauseshemissedtheearlybus.

Thereasonwasthatyoudon’ttrusther.

Thereasonwhyshewaslatewasthatshemissedtheearlybus.即學即練learningandpractice1.Heiscarelessandirresponsible.Thatwas_______hewasfired.2.Hewasfired.Thatwas_________heiscarelessandirresponsible.3.Thereason_______hewasfiredwas________hewascarelessandirresponsible.whybecausewhythat語篇中的銜接連貫：語法、詞匯、邏輯、語音（口語）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?√√√√詞匯手段lexicalconnector語法手段

grammaticalconnector語音手段phonecticconnector邏輯手段logicalconnector即學即練learningandpracticeFinishActivity3onPage5.Whatconnectingruleisused?Key:ACBEDQuetions

1.WhawasDavid'sgroup'sresearch?2.Whatwastheirproblem?3.Whatwastheirkeyissuse?4.Whatdidtheycareabout?表語從句定義：在復合句中充當表