届人教版选修六一轮复习Unit4Global warming单元教案设计25页.docx
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届人教版选修六一轮复习Unit4Global warming单元教案设计25页.docx
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届人教版选修六一轮复习Unit4Globalwarming单元教案设计25页
2018届人教版选修六一轮复习:
Unit4Globalwarming单元教案设计
Period1:
Warmingup&Listening
Teachinggoals
Enablethestudentstoknowsomethingaboutenergyresourcesandsomethingthatuseenergy,andlistenfordetailsandcatchthespecificinformationasmuchaspossible.
Learningabilitygoals
Enablethestudentstopredictsomeimportantinformationintheprocessoflisteningandencouragethestudentstotalkaboutthesituationsaccordingtothelisteningmaterials.
Teachingimportantanddifficultpoints
Howtomakesuretheanswersoflisteningmaterial.
Teachingaids
Arecorderandcassettetapes,aprojector,andacomputer
Teachingprocedures
Step1Warmingup
Doyouknowanykindofenergyresource?
Doyouknowanythingthatuseenergy?
thingsthatuseenergyinahouse
(Slideshow:
somepicturesofthingsthatuseenergyinahouse.)
Thingsthatuseenergy
Sourcesofenergy
lights
television
cassetteplayer
computer
fridge
stove
washingmachine
hairdryer
videorecorder
coaloil
naturalgas
wind(power)
sun(solarenergy)
water(hydro-electricpower)
thesea(tidalenergy)
uranium(nuclearenergy)
plantwaster(biomassenergy)
T:
Nowlet’slookatsomemorepicturesanddecidewhethertheyarerenewableor
not.
(Slideshow:
picturesofsomeformsofenergy)
windenergyrenewable
solarenergyrenewable
hydroelectricpowerrenewable
geothermalenergyrenewable
tidalenergyrenewable
biomassenergyrenewable
nuclearpowerplant,non-renewable(picture)
anoilrefinery(精炼厂),non-renewable(picture)
coalpowerstation,non-renewable(picture)
naturalgasnon-renewable(picture)
uraniumOre(铀矿石)non-renewable(picture)
Theelementuraniumdoesnotoccurinpureforminnaturebutisfoundinmineralssuchascarnotite(钒钾铀矿),picturedabove.(picture)
Conclusion
non-renewable
coaloilnaturalgasUraniumfossilfuels
renewable
wind(windpower)sun(solarenergy)water(hydro-electricpower)
plantwaste(biomassenergy)hotspringsorgeysers(geothermalenergy)
thesea(tidalenergy)
Slideshow
Whatarefossilfuels?
Ancientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoal,oilandnaturalgas,whichcanbeburnttoproduceenergy.
Alsoknownasnon-renewableenergybecauseoncetheyareusedtheyhavegone
forever;theycannotberenewed.
Step2Pre-listening
ReadExercise1together:
1.Readthestatementsbelowandticktheonesyouagreewith.
2.ListentothetapeandansweranddecidewhichstatementProfessorChendoes
NOTagreewith.
1.We'llhavetostopusingfossilfuels.
2.About90%oftheworld'senergycomesfromfossilfuels.
3.Wecanreplacefossilfuelswithrenewablesourcesofenergy.
4.Nuclearpowerisagoodsourceofenergy.
5.Inthefuture,we'llneednewtechnologiestoreplacefossilfuels.
6.It'sthedevelopedcountrieswhoaretoblameforproducingmostofthecarbon
dioxide.
3.ListenagainandtickthephrasesthatProfessorChenusestoagreeordisagree
withLiBin.
Slideshow
Exactly.I’mafraidIdisagreewithyou.
That’strue.I’mafraidnot.
That’sright.Idon’tthinkso.
That’scorrect.Noway.
Iagree.Idon’tagree.
4.Listenforthethirdtimeandfillintheblanks.
1.Ourmodern_________societiesdependontheenergywegetfrom_________.
2.It’savery____________andcheapformofenergy.
3.Can’twejust________fossilfuelswith________sourcesofenergylikesunorwindpower?
4.However,whateverwedo,wehavetodoitasa________________.
5.The_________countriesarereallytheonesto______.
Keys:
1.industrial;fossilfuels2.concentrated3。
replace;renewable4。
globalcommunity
5.developed;blame
Step3Homework
1.Reviewthenewwordsandexpressionsyoulearnedinthisclass.
2.PreviewReading.
Period2Reading
Teachinggoals
Targetlanguage
wordsandphrases:
energy,light(v.),heat(v.),renewable,non-renewable,runout,compare,phenomenon,graph,fuel,trap,data,climate,catastrophe,consequence,range,per,glance,compareto,comeabout,fiercedebate,resultin,buildup,keepon
Abilitygoals
Enablethestudentstotalkaboutdifferentsourcesofenergy.
Enablethestudentstoreadthetext,understandwhatitisaboutandtalkaboutthecausesandeffectsofglobalwarming.
Teachingimportant&difficultpoints
Enablethestudentstogetabetterunderstandingofarticlesofthiskind.
Teachingaids
Aprojectorandablackboard
Teachingprocedures
Step1Warmingup
T:
Nowlet’slookatapictureontheslideandanswerthequestionbelow.
Whatisthegreenhousemadeandusedfor?
Agreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.
What’sgreenhouseeffect?
Step2Scanning
Readthetextquicklyandfindtheanswertothequestions:
1.Whowrotethemagazinearticle?
Whatisthenameofthemagazine?
SophieArmstrong,EarthCare.
2.Whatarethenamesofthethreescientistsmentionedinthearticle?
DrJaniceFoster,CharlesKeeling,GeorgeHambley.
3.Whatdotheythinkaboutglobalwarming?
Dotheyagreewithoneanother?
Theydon'tagreewitheachother.
Dr.JaniceFosterthinkstheeffectsofglobalwarmingcouldbeveryserious.
GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmental
consequences.
CharlesKeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabig
increaseincarbondioxide.
ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.
Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1977.
4.Whatarethetwographsabout?
ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1977.
5.Whatisthemaintopicofthearticle?
Globalwarming/thewarmingoftheearth.
Step3Skimming
Readthepassagecarefullyandjudgewhetherthestatementsaretrueorfalse.
1.Thetemperaturelastcenturydidn’tincreasemuch.
2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.
3.JaniceFosterbelievesthatglobalwarmingiscausedbtheburningfossilfuels.
4.Naturalgasisagreenhousegas.
5.Carbondioxideisabyproductofburningfossilfuels.
6.PeopleacceptCharlesKeeling’sdatabecausehetookaccuratemeasurements.
7.Floodingcouldbeoneoftheeffectsoffutureglobalwarming.
8.GeorgeHambleybelievesscientistsarejustguessingabouttheeffectsofglobal
warming.
9.GeorgeHambleyisworriedabouttheeffectsofcarbondioxideonplantgrowth.
10.Itisclearwhattheeffectsofglobalwarmingwillbe.
Keys:
True:
3,5,6,7,and8False:
1,2,4,9,10
Step4Detailedreading
Readthetextcarefullyandtrytofindouthowmanypartswecandividethetextintoandfindoutthemainideaofeachpart.
Part(Para_toPara_)
Mainidea
Part1(Para_1_)
introduceadebateovertheissueofglobalwarming
Part2(Para_2__to_4__)
illustratehowglobalwarmingcomesabout
Part3(Para_5__to10___)
listtwodifferentattitudesamongscientiststowardsglobalwarming
Part4(Para_11__to___)
It’suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.
Step5Debate
Getintogroupsofsix.Decidewhichthreeinyourgrouparegoingtoagreewiththestatementandwhichthreearegoingtodisagreewiththestatement.
GroupA:
Weshalldosomethingaboutglobalwarming.
GroupB:
Weshalldonothingaboutglobalwarming.
GroupAdiscusswhytheyagreewiththestatement;GroupBdiscusswhytheydisagree.
GroupAandBgettogether.Telleachotherthereasonswhyagreeordisagreewiththestatement.
Step6Homework
1.Readthepassageagainandreviewthenewwordsandexpressions.
2.Preparethedebateingroups.
3.SurftheInternetformoreinformationaboutglobalwarming
Period3Languagepoints
Teachingmaterial
NSEFCBook6——Unit4
TeachingAims
1.Tolearnsomenewwordsandphrases.
2.Tolearnsomecomplicatedsentencepatterns.
TeachingImportantPoint
Howtohelpthestudentstomastertheusageofsomeusefulwords,expressionsandsentences.
TeachingDifficultPoint
Howtoenablethestudentstograspandrememberthedetailedinformationof
thereadingmaterial.
Teachingaids
Aprojector,andablackboard
TeachingProcedure
Step1Revision
Retellthetext.
Step2Languagepoints
T:
Nowlet’slearnsomelanguagepointsofthetext.
Slideshow
1.Itisarapidincreasecomparedtomostnaturalchanges.
1.vt.比较;对照。
如:
Compareyouranswerswiththoseatthebackofthebooktoseeiftheyareright.
把你的答案同书后面的答案对照一下,看看是否正确。
Myhandwritingcannotbecomparedwithmyfather’s.
我的书法不能与我父亲的相比。
2.vt.喻为;比拟。
如:
Man’slifeisoftencompareddoacandle.
人生常被比为蜡烛。
Shakespearecomparedtheworldtoastage.
莎士比亚把人世比做舞台。
compare…with…表示“把……与……相比(同类相比)”
compare…to…表示“把……比做……(异类相比,比喻)”
comparedto/with与……相比,只能作状语
2.Howhasthiscomeaboutanddoesitmatter?
comeabout:
发生,造成相当于happen
WhenMotherwokeup,shedidn’tknowwhathadcomeabout.
I’llneverunderstandhowitcameaboutthatyouwerelatethreetimesaweek.
Doyouknowhowtheairaccidentcameabout?
3.Thereisnodoubtthat….
一、作不可数名词,作"疑惑;怀疑”
①肯定句中doubt多接whether(一般不用if代替)同位语从句。
如:
There'ssomedoubtwhetherhe'llkeephispromise.他会不会信守诺言还难说。
Shehadherdoubtswhetherthenewbookwouldsellwell.她怀疑新书是否会畅销。
②否定句中doubt多接that同位语从句。
如:
Thereisnodoubtthattheywillaskyouforhelp.毫无疑问,他们会请你帮忙的。
Ihavenodoubtthatyouwillsucceed.我毫不怀疑你会成功的。
二、作及物动词常用于下列句型中,作"怀疑;不能肯定;不大相信"解,一般不用进行时态。
①用于否定句或疑问句,后接that引导的宾语从句。
如:
Idon'tdoubtthathe
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