高中英语第二册上Unit9SavingtheearthTheThirdPeriod.docx
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高中英语第二册上Unit9SavingtheearthTheThirdPeriod.docx
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高中英语第二册上Unit9SavingtheearthTheThirdPeriod
2019-2020年高中英语第二册上Unit9Savingtheearth-TheThirdPeriod
TeachingAims:
1.Reviseandmastersomeusefulwords,learninghowtorememberEnglishwords.
2.LearntheGrammar:
Inversion.
TeachingImportantPoints:
1.Learntousesomederivativewords.
2.LearntouseInversion.
TeachingDifficultPoints:
Howtohelpthestudentsusepartlyandfullyinvertedsentencescorrectly.
TeachingMethods:
1.Practisingtomasterthelanguagepoints.
2.ElicitationandinductivemethodstohelpthestudentsmasterInversion.
3.Individualorpairworktomakeeverystudentworkinclass.
TeachingAids:
1.aprojector
2.theblackboard
TeachingProcedures:
StepIGreetings
Greetthewholeclassasusual.
StepIIRevisionandLead-in
T:
YesterdaywereadapassageabouttheEarthSummitandsomeofthemajor
problemsfacingtheworld.ThroughthepassageweknowattheEarthSummit,representativesfrommorethanonehundredcountriesdiscussedsomeofthemostimportantproblemsfacingourplanet.Uptonow,severalEarthSummitshavebeenheldandmuchprogresshasmade.CanyoutellmeinwhichcitythexxEarthSummitwasheld?
Ss:
JohannesburginSouthAfrica.
T:
DoyourememberoneofthemainthemesofthexxEarthSummit?
Andwhatwasit?
Ss:
Yes.Itwassustainabledevelopment,orthequestionofhowwecancontinue
developingtheworldwithoutdamagingtheenvironment.
T:
Whatarethethreebiggestkillersintheworld?
Ss:
Contaminateddrinkingwater,poorsanitationandairpollution.
T:
Whatotherproblemsdidthespeakersspeakabout?
Ss:
Poverty,warandviolence.
T:
WhatdidChina'sthenPremierZhuRongjistress?
Ss:
Theneedforequalityandfairnessintheworld.
T:
Howcanwesavetheearth?
Ss:
Bychangingthewaywelive.
T:
Whatisthekeytothefuture?
Ss:
Education.
T:
Quiteright.TheEarthSummitisnotjustaboutproblems,butalsoaplacetofindsolutionsforthefuture.Weshouldbelievethatthefutureofourplanetmustbemoreandmorebeautifulwiththewholeworld'seffort,Today,we'lllearntousethelanguagepointsappearinginthepassage.First,wordstudy.ThenGrammar-Inversion.
StepIIIPreparingforWordstudy
(Teachershowsthefollowingonthescreen.)
adj.n.
lonely_______
willing_______
responsible_______
fair_______
equal_______
poor_______
v.n.
kill_______
represent_______
suffer_______
adj.adv.
real_______
absolute_______
successful_______
T:
Now,pleaselookatthescreenandwritedowntheotherformsofthegivenwords
ineachgroup.Workinpairsfirst.ThenIwillcheckyourwork.
(Afterawhile,teacherchecksthestudents'answersandshowstherightonesonthescreen.)
Suggestedanswers:
loneliness;willingness;responsibility;fairness;equality;poverty
killer;representative;suffering;really;absolutely;successfully
StepIVWordStudy
T:
Well,nowpleaseopenyourbooksatPage69.LookattilefirstpartinWord
study:
pletethesentenceswiththewordsinbrackets.Changetheirformifnecessary.First,let'sstudytheexample.…Nowpleasepleteeachsentenceanddiscussyouranswerswithyourpartner.Attheend,we'llchecktheanswerstogether.
Suggestedanswers:
1.killer2.alarming4.citizen5.responsibility6.representatives7.suffering8.willingness
(Thengoonwiththesecondpart.)
T:
Now,let'sdothesecondpart.First,youshouldstudythewordsinthebox
carefully.Thenputthemintotwocategories.Attheend,stateyourreasons.Areyouclear?
Ss:
Yes.
T:
Youcanbeginnow.Workinpairs.
(Afterawhile,teachercheckstheirwork.)
Suggestedanswers:
Adverbs:
really,unfortunately,absolutely,especially,successfully
Adjectives:
lonely,lively,ugly,lovely,friendly
StepVPresentation
(Teachershowsthefollowingsentencesonthescreen.)
1.ConferencesliketheEarthSummithelppeopleunderstandthatthereexistseriousproblemsandthatthereisstilltimetotakeaction.
2.AmongthespeakerswasChinasthenPremierZhuRongji,whostressedtheneedforequalityandfairnessintheworld.
3.Notuntilweknowmorewillwebeabletoimprovethesituation.
4.Onlybychangingthewaywelivecanwesavetheearth.
5.HadIknownthatairconditionerscausesomuchpollution,Iwouldneverhaveboughtone.
6.Abetterunderstandingoftheenvironmentisnecessary,asisthewillingnesstoact.
7.Withoutinternationalcooperation,developingcountriescannotprosper,norwillsustainabledevelopmentbepossible.
T:
Now,pleaselookatthesentencesonthescreenandpayattentiontothewordorderofeachsentence.Inwhatwayarethesesentencesdifferentfromtheusualsentences?
Ss:
Thewordorderisnot“Subject+Verb”but“Verb+Subject”or“Auxiliary/Modal+S+V”.
(TeacherwritesthestructuresontheBb.)
T:
Yes.ThiskindofsentenceiscalledInversion,whichhappensinquestionsandinanumberofothercases.Lookatthesentencescarefullyagain,payingattentiontotheunderlinedwords.Inthefirstsentence,“exist”isusedafter
“there”toexpressastateforexistencelike“therebe”structure;thesecond
sentencebeginswithaprepositionphrase.Inthesetwosentences,thewholepredicateverbesbeforethesubject.Thethirdsentencebeginswithanegativeadverb;inthefourthsentence,“only”isplacedatthebeginningofthesentencewithanadverbial.Inthesetwosentences,partofthepredicateesbeforethesubject.Inmostcases,anauxiliaryverboramodalverbesbeforethesubjectandtherestofthepredicateverbesafter.Ifthereisnoauxiliaryormodal,do,doesordidshouldbeadded.Canyouunderstand?
Ss:
Yes.
T:
Thenlookatthefifthsentenceandchangeitintoanothersentencewiththesamemeaning,whichbeginswith“if”.
Ss:
IfIhadknownthatairconditionerscausesomuchpollution,Iwouldnever
haveboughtone.
T:
Quiteright.Insomespecialformsofunrealconditionalclauses,when“if”isleftout,partofthepredicatelikehad,should,wereshouldconiesbeforethesubject.Thatistosay,inversioncanbeusedinsteadof“if”.Areyouclearaboutthat?
Ss:
Yes.
T:
Next,lookatthelasttwosentences,Toavoidrepetition,“as”and“nor”areplacedatthebeginningofthesentenceswhichsaythatpeople(orthingorsituation)arethesameasothersthathavebeenmentioned.Inthiscase,thestructure“as/nor+auxiliary/modal/do(does,did)+subject”shouldbeused.Besides,“neither”and“so”canbeusedlike“nor”and“as”.Isthatclear?
(Bb:
as/so;neither/nor+aux./mod./do(does.did)+subject)
Ss:
Yes.
T:
OK.Now,let'schangethemintotheusualwordordersentences.WangXia,youtrythefirst.
Ss:
Itisaspecialsentencepatternlike“Therebe”structure.“exist”canonly
eafter“there”.
T:
Yes.Sitdown,please.Thenthenextsentence.
Ss:
China'sthenPremierZhuRongjiwasamongthespeakers,whostressedtheneedforequalityandfairnessintheworld.
T:
…
S3:
Wewillnotbeabletoimprovethesituationuntilweknowmore.
S4:
Wecansavetheearthonlybychangingthewaywelive.
S5:
IfIhadknownthatairconditionerscausesomuchpollution,Iwouldnever
haveboughtone.
S6:
Abetterunderstandingoftheenvironmentisnecessary,andthewillingnesstoactisnecessary,too.
S7:
Withoutinternationalcooperation,developingcountriescan'tprosper.Sustainabledevelopmentwillnotbepossibleeither.
StepVIGrammarPractice
T:
Well,nowpleaseturntoPage70.Lookatthefirstpart,Grammar:
Rewritethe
followingsentences,beginningwiththeunderlinedpart.Firststudytheexample,andthenpleteeachsentencebelow.Afewminuteslater,I'llcheck
yourwork.Beginnow.
Suggestedanswers:
1.Notuntilwestoppollutingourlakesandrivers,willwehaveenoughdrinkingwater
2.Onlybylearningtoliveinharmonywithnaturecanwesavetheearth.
3.Onlyafterthemeetingdid1knowthatairpollutioncausesalmostthreemilliondeathseveryyear.
4.Onlywithinternationalcooperationcansustainabledevelopmentbepossible.
5.NotonlyistheEarthSummitaplacetotalkaboutproblems,butalsoaplacetofindsolutionsforthefuture.
6.Onlywithbettereducationwillpeoplebeabletobuildabettersocietyinharmonywithnature.
7.Seldomdowethinkofthesmallchangesthatwecandotomakeabigdifference.
8.NeverhaveIrealisedthatwaterissoprecious.
(ThenteacherdealspartinGrammar.)
T:
Allright.Nowlet'setothesecondpart.pletethefollowingsentences
usingthewordsinthebox:
so,neither,nor,as.Atthesametime,youshouldpayattentiontotheverbformbeforethesubject.Firstdoitindividually.Thencheckyouranswerswithyourpartner.Attheend,I'llasksomeofyoutoreadthewholesentence.
Suggestedanswers:
1.so/ashave2.neither/norshould
3.so/asdo4.so/asam5.neither/nordo
6.so/asis7.neither/nor8.neither/norcan
9.so/ascan
(Aftercheckingtheanswers,teachersaysthefollowing.)
T:
Fromthesesentences,weknowtheverb-formafter“so,neither,nor,as”
shouldbethesameastheverb-formafterthefirstsubject.Thepersonand
numbershouldagreewithitsownsubject.Isthatso?
Ss:
Yes.
StepVISummaryandHomework
T:
Now,let'slookatwhatwe'velearntinthisperiod.Atthebeginningofclass,werevisedthecontentsofthelastclass.Thenwedidsomeexercisestofurther
studysomelearntwordsinthetext.Attheend,welearnttheusageofInversion.Tomasteritbetter,wealsodidsomeexercises.Butthat'snotenough.Ihopeyoucanpractisemoreafterclass.Themoreyoupractise,thegreaterprogressyouwillmake.Somuchforthisperiod.Seeyoutomorrow.
Ss:
Seeyoutomorrow!
StepVIIITheDesignoftheWritingontheBlackbo
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- 高中英语 第二 Unit9SavingtheearthTheThirdPeriod