Unit1 Discover useful structures公开课课件 高中英语人教版（2019）选择性必修第二册

2019新人教高中英语选择性必修二Unit1ScienceandScientists

DiscoverUsefulStructuresTeachingobjectives:Bytheendofthisperiod,youwillbeableto…1.Analyzetheformsandfeaturesofpredicativeclause.2.Learnthefunctionsofpredicativeclauseinthecontext.3.Usepredicativeclauseinthegivencontext.Q1:Canyoufindanypredicativeclauses?Q2:Whydoyouthinktheyarepredicativeclauses?Q3:Whatarethemainlinkingverbs?LeadinInthosedays,therearetwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywasthatbadaircausedthedisease.Anotherwasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.Snowsubscribedtothesecondtheory.OneoftheevidenceisthatawomanhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemedthatshelikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.LeadinInthosedays,therearetwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywas

thatbadaircausedthedisease.Anotherwasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.Snowsubscribedtothesecondtheory.Oneoftheevidenceis

thatawomanhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemed

thatshelikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.Andthetruthwas

thatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Therearelinkingverbscloselybeforethepredicativesentences.Linkingverbs状态类：be,seem,appear,keep,remain,stay…感官类：look,smell,taste,sound,feel…变化类：become,get,turn,grow,fall,come,go…Whatarethemainlinkingwords?ObserveandAnalyseaskandanswerthequestionsinpairsusingtheinformationfromthereadingpassage(P5Activity2)1.WhatwasSnow'sdiscoveryintwoparticularstreetsinLondon?Snow'sdiscoveryintwoparticularstreetsinLondonwasthat____________________

______________________________________________________________________.2.WhatwasSnowdeterminedtofindoutduringthe1854outbreakofcholerainLondon?WhatSnowwasdeterminedtofindoutwaswhy______________________________

________________________________________________.3.WhatweretheexactplacesSnowmarkedonthemap?TheexactplacesSnowmarkedonthemapwerewhere_________________________

_________________________________.4.WhatwasthefindingthatSnowannounced?Snow'sfindingwasthat_________________________________________________________________________.thecholeraoutbreakwas

soseverethatmorethan500peoplediedintendaysofcholerahadcausedover500deathswithintendays.somanypeopledied/theoutbreakallthosewhodiedhadlived/allthedeadpeoplehadlivedthepumpwatercarriedcholeragerms/thewaterpumpwastoblameforthespreadofcholera

Snow'sdiscoveryintwoparticularstreetsinLondonwas_____thecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.2.WhatSnowwasdeterminedtofindoutwas______somanypeopledied.3.TheexactplacesSnowmarkedonthemapwere_______allthosewhodiedhadlived.4.Snow'sfindingwas_____thepumpwatercarriedcholeragerms.ObserveandAnalyse——FillintheblankquicklyandanswerthequestionsWhataretheirmeaningsandfunctions?thatwhywherethatObserveandAnalyse——FillintheformSummary:Guidingwordsshouldbechosenaccordingtotheir

functionsandmeanings.引导词thatwhichwhetherwhatwhoas

if/asthoughwhywhenwherehow做的成分

含义不做成分定语表语不做成分主语宾语表语定语主语宾语表语不做成分状语状语状语状语无意思哪一个是否什么所……的谁好像为什么什么时候在哪里如何怎样Practice——

completeDavid’slinesbyfillinginguidingwords(A-E).Absolutely.Youmaynotbelieveit,butthatwas________happenedatthe

initialstageofourgroup'sresearchondevelopingavaccineformalaria.B.Yes,itis.Anditseemed______allthetheorieswereuseful,butthefact

was________wecouldn'tpersuadeoneanotherthatonetheorywas

betterthananother.C.Exactly.Theproblemwasnotabout_______allourtheorieswereequally

good,butindeciding____________________theorytodependupon.D.Werealisedthatwhatwecaredaboutwasnot__________aspectweneededtodevelopatheoryin,butrather________wecanreducethecostofavaccinewithoutreducingitseffect!E.You'reright.Atlast,webecamefocusedonthekeyissue,whichwas

_______wehadtocarryouttheresearchinthefirstplace.whatthatwhetherwhose/which/whatwhat/whichhowasifwhyMaria:Thismixoftheoryanddataisoneofthekeycharacteristicsofwhatwecallscience.David:____________________Reason:__________________Maria:Withyourtheoreticalframework?David:____________________Reason:__________________Maria:Decidingonatheoryisdefinitelyofcriticalimportance.David:___________________Reason:__________________Maria:Thiswaswhenyoushouldhavecalmeddownandgotdowntodoingsomesolidwork.David:___________________Reason:__________________Maria:Sowhathappenedintheend?David:___________________Reason:__________________Practice——PutA-Einthecorrectorderusingtheabovemethods.Thenchecktheanswerandstatethereasons.（P5Activity3）ACBEDlogiclexisgrammarlogicgrammarQ1:WhatwasDavid’sgroup’sresearch?Q2:Whatwastheproblem?Q3:Whatwasthekeyissue?Q4:Whatdidtheycareabout?Practice——answersomequestionsaboutthedialogueusingthepredicativeclauses.（P5Activity3）David’sgroup’sresearchwasthattheywantedtodevelopavaccineformalaria.Theproblemwasthattheyhadtodecidewhichtheorytodependupon.Thekeyissuewaswhytheyhadtocarryouttheresearchinthefirstplace.Whattheycaredaboutwashowtheycouldreducethecostofavaccinewithoutreducingitseffect.Everygroupcanchooseoneortwodialogues,andeachmembermustcompleteatleasttwopredicativeclauses.LanguageUseandShare——Wpletetheconversationsusingthepredicativeclauses.

1.A:Papermaking,printing,gunpowder,andthecompassarethefourgreatinventionsofancientChina.TheyaresignificantcontributionsoftheChinesenationtotheworld.B:Sure,theyare.WhatIwanttoknowthoughis_________________________________.2.A:TheancientChinesewerethefirsttoinventpaperandprinting.Thentheywentontoinventbooksandhadopenedbookshopsinmanycities.B:WhatI'mcuriousaboutis____________________________________________.3.A:ThecompassisaspecialinventionofancientChina,datingbacktoasearlyastheWarringStatesPeriod.B:Yes.Itseems_______________________________________.4.A:Gunpowderwasoriginallyusedformakingfireworks.B:Butwhatsurprisesmeis____________________________________________.5.A:High-speedtrains,mobilepayments,thebike-sharingsystem,andonlineshoppingareconsideredbysomeasthenew“fourinventions”ofChina.B:Isthatso?Ifeel/Itseems_________________________________________________.whichoneisthegreatestinventionwhoinventedpaper/wheninkwasinventedthatthecompasswasparticularlyusefulthatgunpowderwasnotusedinitiallyforfirearmsthattheseinventionshavereallymadeourliveseasier

Makeapresentationactivelyandbravely!Everygroupcanchooseoneortwodialogues,andeachmembermustcompleteatleasttwopredicativeclauses.I.Fillintheblankswithguidingwords.1.Lookatthetallestbuilding.Thatis_________________myfatherworks.2.Oneofthemostexcitingmomentsinmylifewas_______