2012届高考英语一轮复习 Unit-4 Global warming课件 新人教版选修7.ppt

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1、Unit4Globalwarming课堂考点清障考点1.Sohowhasthiscomeaboutanddoesitmatter?(Page26)Howdiditcomeaboutthatheknewwherewewere?他是怎么知道我们在什么地方的呢？用法归纳comeabout发生；造成comeacross偶遇；碰到comeupwith想出(主意等)takeplace发生breakout突然发生对应训练(1)Howdidit____________(发生)?comeabout(2)Sometimesitishardtotellhowaquarre

2、l___________(发生).(3)Howdidthissituationhappen?Youaretoblameforit.(替换)___________(4)没人知道这种变化是怎样发生的。(汉译英)_____________________________________考点2.Theproblembeginswhenweaddhugequantitiesofextracarbondioxideintotheatmosphere.(Page26)Thesquirrelhideslargequantitiesofnutsinsidetrees.

3、松鼠把大量的坚果贮藏在树里面。用法归纳quantityn.量；数量quantitiesof大量的Nobodyknowshowthechangecameabout.comesaboutcomeaboutinlargequantities大量地qualityn.质量对应训练(1)Pricewasdecided___________(由数量).(2)Mathematicsisthescienceofpure_________(数量).(3)_________________(大量食品)wereonthetable.(4)我重质量胜过重数量。(汉译英；qua

4、lity)_________________________考点3.Itmeansthatmoreheatenergytendstobetrappedintheatmospherecausingtheglobaltemperaturetogoup.(Page26)SnowtendstocooltheairaboveitandstopstheEarthfromoverheating.雪具有冷却上方空气，以及让地球停止过热的倾向。Ipreferqualitytoquantity.byquantityquantityQuantitiesoffood用法归纳

5、tendvi.趋向；易于；照顾tendvt.照顾；护理tendtodo某种倾向；有……的趋势对应训练(1)Peopleunderstress______(容易)toexpresstheirfullrangeofpotential.(2)He_______(往往)tothrowtheballtoohigh.(3)He________(照顾)thechilddayandnightthroughouthisillness.(4)最近,物价有上涨的趋势。(汉译英)__________________________考点4.Theyalsoagreethati

6、tistheburningofmoreandmorefossilfuelsthathasresultedinthisincreaseincarbondioxide.(Page26)Pricestendtogouprecently.tendtendstendedMyeffortsresultedinnothing.我的努力毫无结果。用法归纳resultin导致resultfrom由……而造成leadto导致对应训练(1)Actingbeforethinkingalways_________(导致)failure.(2)Theaccident______

7、___(造成)threepeoplebeingkilled.(3)Theaccident__________(造成)hisdeath.(4)这场意外事故造成两人死亡。(汉译英;death)________________________________Theaccidentresultedintwodeathresultsinresultedinresultedin考点5.Ontheotherhand,therearethose,likeGeorgeHambley,whoareopposedtothisviewandbelievethatweshou

8、ldnotworryabouthighlevelsofcarbondioxideintheair.(Page