Unit 1 Discover useful structures 公开课教案-2022-2023学年高中英语人教版2019选择性必修第二册

2019新人教高中英语选择性必修二Unit1DiscoverUsefulStructures公开课教案Teachingaims:Bytheendoftheperiod,studentswillbeableto:1.Toanalysetheformsandfeaturesofpredicativeclauses.2.Tolearnaboutthefunctionsofpredicativeclausesinthecontext.3.Tousepredicativeclausesinthegivencontext.Teachingkeyanddifficultpoints:Helpstudentstoanalyseandusepredicativeclauses.Instructstudentstousepredicativeclausestoexpresstheirownideas.Teachingprocedures:StepⅠLead-inInthosedays,thereweretwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywasthatbadaircausedthedisease.Anotherwasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.Snowsubscribedtothesecondtheory.OneevidenceisthatawomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemedthatshelikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.1.Canyoufindanypredicativeclauses?2.Whydoyouthinktheyarepredicativeclauses?3.Whatarethemainlinkingverbs?Suggestedanswers:1.Inthosedays,thereweretwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywasthatbadaircausedthedisease.Anotherwasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.Snowsubscribedtothesecondtheory.OneevidenceisthatawomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemedthatshelikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.

2.Becausetherearelinkingverbscloselybeforethepredicativesentences.3.Linkingverbs状态类StepⅡObserveandanalyseActivity1Askandanswerthequestionsinpairsusingtheinformationfromthereadingpassage.(P5Activity2)（红色部分为学生作答）1.WhatwasSnow’sdiscoveryintwoparticularstreetsinLondon?Snow’sdiscoveryintwoparticularstreetsinLondonwasthatthecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.

2.WhatwasSnowdeterminedtofindoutduringthe1854outbreakofcholerainLondon?WhatSnowwasdeterminedtofindoutwaswhysomanypeopledied/theoutbreakofcholerahadcausedover500deathswithintendays.

3.WhatweretheexactplacesSnowmarkedonthemap?TheexactplacesSnowmarkedonthemapwerewhereallthosewhodiedhadlived/allthedeadpeoplehadlived.

4.WhatwasthefindingthatSnowannounced?Snow’sfindingwasthatthepumpwatercarriedcholeragerms/thewaterpumpwastoblameforthespreadofcholera.

Activity2Fillintheblanks.1.Snow’sdiscoveryintwoparticularstreetsinLondonwasthatthecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.

2.WhatSnowwasdeterminedtofindoutwaswhysomanypeopledied.

3.TheexactplacesSnowmarkedonthemapwerewhereallthosewhodiedhadlived.

4.Snow’sfindingwasthatthepumpwatercarriedcholeragerms.

Activity3Fillintheform.引导词thatwhichwhetherwhatwhoAsif/asthoughwhywhenwherehow作的成分不作成分定语表语不作成分主语宾语表语定语主语宾语表语不作成分状语状语状语状语意思无意思哪一个是否什么谁好像为什么什么时候在哪里如何;怎样StepⅢPracticeActivity1CompleteDavid’slines(A~E)byfillinginguidingwords.(P5Activity3)asifthatwhatwhowhenhowwhywhosewhichwhetherA.Absolutely.Youmaynotbelieveit,butthatwashappenedattheinitialstageofourgroup’sresearchondevelopingavaccineformalaria.

B.Yes,itis.Anditseemedallthetheorieswereuseful,butthefactwaswecouldn’tpersuadeoneanotherthatonetheorywasbetterthananother.

C.Exactly.Theproblemwasnotaboutallourtheorieswereequallygood,butindecidingtheorytodependupon.

D.Werealizedthatwhatwecaredaboutwasnotaspectweneededtodevelopatheoryin,butratherwecanreducethecostofavaccinewithoutreducingitseffect!

E.You’reright.Atlast,webecamefocusedonthekeyissue,whichwaswehadtocarryouttheresearchinthefirstplace.

Suggestedanswers:A:whatB:asif;thatC:whether;whose/which/whatD:which/what;howE:whyActivity2PutA~Einthecorrectorderusingtheabovemethods.Thenchecktheanswersandstatethereasons.(P5Activity3)A.Absolutely.Youmaynotbelieveit,butthatwaswhathappenedattheinitialstageofourgroup’sresearchondevelopingavaccineformalaria.B.Yes,itis.Anditseemedasifallthetheorieswereuseful,butthefactwasthatwecouldn’tpersuadeoneanotherthatonetheorywasbetterthananother.C.Exactly.Theproblemwasnotaboutwhetherallourtheorieswereequallygood,butindecidingwhosetheorytodependupon.D.Werealizedthatwhatwecaredaboutwasnotwhichaspectweneededtodevelopatheoryin,butratherhowwecanreducethecostofavaccinewithoutreducingitseffect!E.You’reright.Atlast,webecamefocusedonthekeyissue,whichwaswhywehadtocarryouttheresearchinthefirstplace.Maria:Thismixoftheoryanddataisoneofthekeycharacteristicsofwhatwecallscience.David:______________________________Reason:______________________________Maria:Withyourtheoreticalframework?David:________________________________Reason:__________________________________Maria:Decidingonatheoryisdefinitelyofcriticalimportance.David:_____________________________________Reason:____________________________________Maria:Thiswaswhenyoushouldhavecalmeddownandgotdowntodoingsomesolidwork.David:__________________________________________Reason:_________________________________________Maria:Sowhathappenedintheend?David:__________________________________________Reason:________________________________________Suggestedanswers:A(Logicalconnector)C(Lexicalconnector)B(Grammaticalconnector)E(Logicalconnector)D(Grammaticalconnector)Activity3Answerthefollowingquestionsaboutthedialogueusingthepredicativeclauses.1.WhatwasDavid’sgroup’sresearch?2.Whatwastheproblem?3.Whatwasthekeyissue?4.Whatdidtheycareabout?Suggestedanswers:1.David’sgroup’sresearchwasthattheywantedtodevelopavaccineformalaria.2.Theproblemwasthattheyhadtodecidewhichtheorytodependupon.3.Thekeyissuewaswhytheyhadtocarryouttheresearchinthefirstplace.4.Whattheycaredaboutwashowtheycouldreducethecostofavaccinewithoutreducingitseffect.StepⅣLanguageuseandshareActivity1Workingroups.Completetheconversationsusingthepredicativeclauses.Everygroupcanchooseoneortwodialogues,andeachmembermustcompleteatleasttwopredicativeclauses.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.

Suggestedanswers:1.whichoneisthegreatestinvention/howtheseinventionshavechangedChinaandtheworld2.whoinventedpaper/howpeoplemadethefirstpaper/wheninkwasinvented/whatpaperwasmadefrom/whenandhowprintingspreadtotherestoftheworld/howrecordswerekeptbeforetheinventionofpaper3.thatthecompasswasparticularlyuseful/asifpeoplehadtodependonthepositionsofthesun,themoon,andsoonwhentheywereatseabeforethecompasswasinvented/thatancientChinesehaddevelopedagoodknowledgeofmagnetism4.thatgunpowderwasnotusedinitiallyforfirearms/howitissounexpectedlyusedtoday/howheavilyminingdependsuponit/thatithasbeengenerallyusednotonlyinindustriesbutinwarsacrosstheworld5.thattheseinventionshavereallymadeourliveseasier/thateveryChineseisproudofthenew“fourinventions”/asifIcouldnotlivewithoutthem,especiallywhenitcomestoonlineshopping/thatweallbenefitfromallthesethings/thatwemayhavetoremembe