2023-2024学年度人教版选择性必修二 Unit1 Science and Scientists Discover Useful Structures-课件（31张）

2023-2024学年度人教版选择性必修二Unit1ScienceandScientistsDiscoverUsefulStructuresLearningobjectivesIn

this

class,

you

will1.identifyandsummarizetheformofthepredicativeclause;2.gettoknowthemeaningofthepredicativeclause;3.usethepredicativeclausetotalkaboutscienceandscientists.ReviewReviewWhatkindofpersonisJohnSnow?JohnSnowissmart.JohnSnowisdetermined.JohnSnowiscommitted.…Warmup1.JohnSnowisdetermined.

2.Onetheorywasthatbadaircausedthedisease.

predicative(表语)

predicativeclause(表语从句)

SP主(系)表

SP主(系)表

Findandunderlinethepredicativeclauses.Itseemsthatscienceisallaroundus.Understandingscienceandpushingtheboundariesofscienceiswhatmakesmesatisfied.

Summary1

Linkingverbs状态类：be动词,seem,appear,keep,remain,stay…感官类：look,smell,taste,sound,feel…变化类：become,get,turn,grow,fall,come,go…

Activity1:Underlineallthepredicativeclausesinthereadingpassage.Para.2Ingeneral,doctorsinthosedayshadtwocontradictorytheories…Onetheorywasthatbadaircausedthedisease.Anotherwasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.………空气污染引发霍乱。……食物或饮用水中的细菌感染导致霍乱。Activity1:Underlineallthepredicativeclausesinthereadingpassage.Para.3…Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemedthatthewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.该女士似乎非常喜欢从水泵抽上来的水，每天都让人从那里打水运到家里来。Activity1:Underlineallthepredicativeclausesinthereadingpassage.Para.4ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Moreover,Snowwaslaterabletoshow

a

link

between

other

cases

of

cholera

and

the

differentwatercompaniesinLondon.………宽街水泵抽上来的水被废弃物污染了。Activity2:Answerthefollowingquestionsusingtheinformationfromthereadingpassageaswellasthepredicativeclauses.ExampleWhatwasitthatJohnSnowshowedtotheworld?WhatJohnSnowshowedtotheworldwas__________________________.howcholeracouldbeovercomehow

意思为“如何”，在表语从句中充当状语Activity2:Answerthefollowingquestionsusingtheinformationfromthereadingpassageaswellasthepredicativeclauses.1.WhatwasSnow’sdiscoveryintwoparticularstreetsinLondon?Snow’sdiscoveryintwoparticularstreetsinLondonwas

_____________________________________________

_____________________________________________thatthecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.that

无意义，在表语从句中不充当成分,起连接作用，不能省略Activity2:Answerthefollowingquestionsusingtheinformationfromthereadingpassageaswellasthepredicativeclauses.2.WhatwasSnowdeterminedtofindoutduringthe1854outbreakofcholerainLondon?WhatSnowwasdeterminedtofindoutwas

____________________________________________

____________________________________________whytheoutbreakofcholerahadcausedover500deathswithintendays.why意思为“……的原因”，在表语从句中充当状语Activity2:Answerthefollowingquestionsusingtheinformationfromthereadingpassageaswellasthepredicativeclauses.3.WhatweretheexactplacesSnowmarkedonthemap?

TheexactplacesSnowmarkedonthemapwere

______________________________whereallthosewhodiedhadlived.where意思为“……的地点”，在表语从句中充当状语Activity2:Answerthefollowingquestionsusingtheinformationfromthereadingpassageaswellasthepredicativeclauses.4.WhatwasthefindingthatSnowannounced?

Snow’sfindingwas

____________________________________

thatthepumpwatercarriedcholeragerms.that

无意义，在表语从句中不充当成分,起连接作用，不能省略Summary21.WhatJohnSnowshowedtotheworldwashowcholeracouldbeovercome.2.TheexactplacesSnowmarkedonthemapwerewhereallthosewhodiedhadlived.3.Snow’sfindingwasthatthepumpwatercarriedcholeragerms.引导词在表语从句中充当的成分引导词备注主语who,what,which…根据句意选择宾语whom,who,what,which…表语whom,who,what,which定语whose,what,which状语when,where,why,how不充当成分that,whether,asif,asthough,becauseActivity3:CompleteDavid’slines(A-E),usingthewordsinthebox.asifthatwhatwhowhenhowwhywhosewhichwhetherAAbsolutely.Youmaynotbelieveit,butthatwas_____happenedattheinitialstageofourgroup’sresearchondevelopingavaccineformalaria.whatBYes,itis.Anditseemed_____allthetheorieswereuseful,butthefactwas_____wecouldn’tpersuadeoneanotherthatonetheorywasbetterthananother.CExactly.Theproblemwasnotabout________allourtheorieswereequallygood,butindeciding________________theorytodependupon.asifthatwhetherwhich/what/whoseasifthatwhatwhowhenhowwhywhosewhichwhetherD

Werealisedthatwhatwecaredaboutwasnot_________aspectweneededtodevelopatheoryin,butrather_____wecanreducethecostofavaccinewithoutreducingitseffect!E

You’reright.Atlast,webecamefocusedonthekeyissue,whichwas_______wehadtocarryouttheresearchinthefirstplace.which/whathowwhyasifthatwhatwhowhenhowwhywhosewhichwhetherActivity3:PutDavid’slinesinthecorrectorderandpractisetheconversation.

Maria:Thismixoftheoryanddataisoneofthekeycharacteristicsofwhatwecallscience.David:________________________________________

A(Absolutely.Youmaynotbelieveit,butthatwaswhathappenedattheinitialstageofourgroup’sresearchondevelopingavaccineformalaria.)Activity3:PutDavid’slinesinthecorrectorderandpractisetheconversation.

Maria:Withyourtheoreticalframework?David:________________________________________

C(Exactly.Theproblemwasnotaboutwhetherallourtheorieswereequallygood,butindecidingwhich/what/whosetheorytodependupon.)Activity3:PutDavid’slinesinthecorrectorderandpractisetheconversation.

Maria:Decidingonatheoryisdefinitelyofcriticalimportance.David:________________________________________

B

(Yes,itis.Anditseemedasifallthetheorieswereuseful,butthefactwasthatwecouldn’tpersuadeoneanotherthatonetheorywasbetterthananother.)Activity3:PutDavid’slinesinthecorrectorderandpractisetheconversation.

Maria:Thiswaswhenyoushouldhavecalmeddownandgotdowntodoingsomesolidwork.David:________________________________________

E

(You’reright.Atlast,webecamefocusedonthekeyissue,whichwaswhywehadtocarryouttheresearchinthefirstplace.)Activity3:PutDavid’slinesinthecorrectorderandpractisetheconversation.

Maria:Sowhathappenedintheend?David:________________________________________

D

(Werealisedthatwhatwecaredaboutwasnotwhich/whataspectweneededtodevelopatheoryin,butratherhowwecanreducethecostofavaccinewithoutreducingitseffect!)Activity4:Fillineachblankwithaword

orexpressionthatintroducesapredicativeclause.(page10)

Activity4:Fillineachblankwithaword

orexpressionthatintroducesapredicativeclause.(page10)

Whatisthepassageabout?Itisaboutscienceandscientist.Scienceissimply_______youcando.Anddoingsciencemakesyouascientist!So