英语知识点北师大版高中英语选修八Unit 22《Environmental Protection》The Second Period教案总结.docx

英语知识点北师大版高中英语选修八Unit 22《Environmental Protection》The Second Period教案总结.docx

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英语知识点北师大版高中英语选修八Unit22《EnvironmentalProtection》TheSecondPeriod教案总结

安徽省滁州市第二中学高中英语Unit22EnvironmentalProtectionTheSecondPeriodLesson1GlobalWarming教案北师大版选修8

Teachinggoals教学目标

1.TargetLanguage目标语言

a.重点词汇和短语

consensus,beyond,relevant,refer,bounce,pin,coincidence,condemn,federal,reservation,sacrifice,advocate,recycle,substitute,beyondone’scontrol,takeaction,aheadof

b.重点句子

Inthelastfewdecades,scientistshavereachedconsensusandreportedthathumanbeingsarecausingchangesintheEarth’sclimate—somethingpreviouslyseenasbeyondourcontrol.

2.Abilitygoals能力目标

Learnwhatglobalwarmingisandenablestudentstolearnitscausesandconsequences.

3.Learningabilitygoals学能目标

Byreadinganarticlehelpstudentstolearnhowtheycanhelpsolvetheproblemofglobalwarming.

Teachingimportantpoints教学重点

Whathumanactivitiesarecausingglobalwarmingandhowwecanhelpsolvetheproblemofglobalwarming.

Teachingdifficultpoints教学难点

Howwecanhelpsolvetheproblemofglobalwarming.

Teachingmethods教学方法

Listening,reading,discussing.

Teachingaid教具准备

Multimediacomputer.

Teachingprocedures&ways过程与方式

StepILeadingin

Inthisprocedurestudentswilltalkaboutthecausesandconsequencesofglobalwarming.Beginthelessonbyaskingstudentstodiscussthequestionsinbeforeyoustart

T:

YesterdaywelearnedfromthepassageinCultureCornerthatgasesfromburningcoalandoilarethemajorcausesofglobalwarming.Didyoumakeyoursurveyonhowstudentscometoschool?

S1:

Iasked40students.Teninthefortycometoschoolbybus.Twenty-oneridebicycles.Eightofthefortytakeacarandonlyonewalkstoschool.

...

T:

Fromthesurveyyoumadewecanseemostofstudentsinourschooltakeagreenwaytoschool.I’mgladwearenothavingsomanycars.Becausegasespumpedintotheatmospherefromcarswillspeedupglobalwarming.Haveyounoticedthatin2006wehadaverywarmwinter?

ExpertssayglobalwarminghaschangedtheclimateinChina.Inthisclasswearegoingtolearnmoreaboutglobalwarming.Wewillreadanarticle“Canwetaketheheat?

”Beforewestartthetext,pleasediscussthequestioninBeforeyoustart.

StepIIBeforeyoustart

DiscussthetwoquestionsinBeforeyoustartandworkoutthemeaningsofthegivenwords.

T:

OK,openyourbooksanddiscussthequestioninBeforeyoustartonPage6.Whichcountriesdoyouthinkcontributemoretoglobalwarming,developedcountriesordevelopingcountries?

Ss:

Developedcountries.Becausetheyhavemorecarsandfactoriesandgasesfromcarsandfactoriesarethemajorcauseofglobalwarming.

T:

Goodanswer.PleasescanthetextforthegivenwordsinEx2andtrytoworkouttheirmeaning.

Whilestudentsarediscussingthewords,Teachershouldwalkaroundtheclassroomandgivenecessaryhelpwhenneeded.

Severalminuteslater,askstudentstopresenttheiranswerseitherinEnglishorChinese.Studentsmayevenbeencouragedtoexplainthemeaningsusingpictures.ShowthesuggestedanswersonthePowerPoint.

StepIIIReadtolearn

Dealwiththereadingpart.

Scanning

Askstudentstoscanthetextandfindwhatexactlyglobalwarmingis.

T:

WhatisthetitleofLesson1?

Ss:

GlobalWarming.

T:

Doyouknowwhatexactlyglobalwarmingis?

Pleasescanthetextandfindtheanswerinthetext.

Ss:

GlobalwarmingreferstoanaverageincreaseintheEarth’stemperature.

T:

Quitegood!

Thenskimthetextandfindwhathumanactivitiesarecausingglobalwarming.

S:

Asaresultofincreasedindustry,agriculture,thecuttingdownofforests,theincreaseintransportandtheburningoffuels,nearly6tonesofcarbondioxidegoesintotheatmosphereeveryyearforeveryoneoftheEarth’s6billionpeople.Overthelast100years,theglobalaveragetemperaturehasincreasedby1°F.Ifwecontinuetoproducecarbondioxideandothergasesinsuchquantities,wearecondemninglifeonEarthandshouldexpectsevereconsequences.

Skimming

ShowthefollowingformonthePowerPointandaskthemtoworkingroupsandcompletetheform.

term

definition

causes

consequences

howtosolvetheproblem

Globalwarming

Fiveminuteslater,showthesuggestedanswersonthePowerPoint.

term

definition

causes

consequences

howtosolvetheproblem

Globalwarming

referstoanaverageincreaseintheEarth’stemperature.

Whengreenhousegasesintheatmosphereincrease,moreheatistrapped.（thegreenhouseeffect）

TheEarth’stemperaturerises.

Government’sactionandeachpersonshouldplaytheirpart（smallchangesmadebyeveryoneworldwide）.

AskstudentstoskimthetextandthenfinishEx3onPage7.Studentsmaydiscussthequestionsingroups.

T:

LookthroughthequestionsinEx3onPage7first.Thenskimthetexttofindtheanswers.

Thenchecktheanswerswiththe