Unit4 Global warming-Reading[课件]

Unit4GlobalWarming人教新课标选修六Unit4---warmingupandreadingGlobalwarming1._______________n.数量2._______________n.资料；数据3._______________vt.反对；反抗4._______________n.趋势；倾向；走向5._______________vt.陈述n.状态，国家quantitydataopposetrendstate6._____________n.变化范围v.涉及7._____________adj.平稳的；持续的8._____________n.标题；名称；头衔9.______________n.图表；曲线图10.______________adj.分布广的rangesteadytitlegraphwidespread11._____________vt.使恢复；使振作12._____________v.趋向；照顾；护理13.renewableadj._______________14.phenomenonn._______________refreshtend可更新的；能再生的现象16.consequencen._______________17.catastrophen._______________18.individualn.＆adj._______________19.advocatevt._______________20.consumevt._______________结果；后来大灾难；浩劫个人；个体提倡；主张；拥护消费；吃完warmingupandreadingWhatarethesebuildingsmadeofandwhatistheirpurpose?Theyaremadeofglassandplantscangrowinitwhenitiscoldoutside.Howdoesitwork?Theairinsideiswarmbecausetheglasstrapstheheatfromthesunandkeepsitfromescaping.Thismakesthegreenhouseheatupandsotheplantscangrowthroughoutthecoldperiod.Whatarethe“greenhousegases”?Intheatmospheresurroundingtheearththerearegases,whicharecalled“greenhousegases”,includingcarbondioxide,methane(甲烷,沼气)andwatervapor.TheEarthIsBecomingWarmer–ButDoesItMatter?TheEarth’ssurfacetemperaturehasrisenbyaboutonedegreeFahrenheittoday.Thereisnodoubt1_______theearthisbecomingwarmer.Buthowhasthiscomeaboutanddoesitmatter?Peoplehavefiercedebatesaboutwhether2____ishumanactivitythathascausedthisglobalwarming.thatitManyscientists4_____Dr.JaniceFosterbelievethatpeoplehavecausedtheincreaseintheearth’stemperature5____burningfossilfuelslikecoal，naturalgasandoiltoproduceenergy.likebySomebyproductsofthisprocessarecalled“greenhouse”gases，themostimportantoneof6______iscarbondioxide.Theincreasedamountofcarbondioxidemeansthatmoreheatenergy7___________(trap)intheatmosphere8__________(cause)theglobaltemperaturetogoup.causingwhichistrappedOn9____otherhand，somescientistspredictthatanywarmingwillbemildwithfewbad10_______________(environment)consequences.Anyhow，evenifwestartreducingtheamountofcarbondioxideandothergreenhousegases，theclimateisgoingtokeeponwarmingfordecadesorcenturies.environmentalthe考点探究重点单词1．tendv．倾向；往往会；照顾；护理n．倾向，趋势tendtodosth.倾向于做某事；往往会做某事tendto/towards倾向于；趋于sb.照料/护理某人haveatodosth.有做某事的倾向/可能性tendencytend(to)tendency运用：用适当的词填空或根据提示完成句子。⑴WhenIamtired，Itend__________(make)mistakes.⑵Hisviewtends____ours.⑶Thedoctorsandnursesarebusy______(照顾)theinjured.tendingtotomaketo3.opposevt.反对；反抗；与(某人)较量派生：opposedadj.反对的；对立的oppose(doing)sth.反对……(强调动作)beopposedto反对……(强调状态)运用：用适当的词填空或根据提示完成句子。⑴Peoplewhoareinfavorofpeaceare__________(oppose)tonuclearweapon.opposed⑵ManyresidentsinGuangzhouareopposedto________(tear)downtheoldbuildingswhichareculturalrelics.⑶我反对酒醉时驾驶。I_________________________________whiledrunk.tearingamopposedtodriving/opposedriving4．averageadj.平均的；普通的；一般的；n.平均数anaveragerate/cost/price平均费率/成本/价格anaverage...……的平均数高于/低于平均水平onaverage平均地；通常；按平均值beofaverageheight/intelligence中等个头/智力平常above/belowaverageof(1)Theaverageof48and58is53.48和58的平均数是53。(2)Theaverageageofthestudentsinourclassisseventeen.我们班学生的平均年龄是17岁。(3)，mensmokemorecigarettesthanwomen.平均起来，男子比女子吸烟多。OnaverageⅡ.单项填空1．Thepresident________givingmilitaryaidtothiscountry.A．isopposedB．objectsC．opposesD．against解析opposedoingsth.反对做某事；A应加to；B应加to；D应加is。C2．Thereisagrowing________forpeopletoworkathomeinsteadofinoffices.A．senseB．mustC．pointD．tendency解析由句意可知，此处应是“日益增加的趋势”；tendency趋势，倾向。D3．Don’texpecttoomuchofhim.Afterall，heisachildof________intelligence.A．averageB．slightC．strangeD．different解析beofaverageintelligence智力平常。Aalargequantityof+n.许多(作主语，谓语用单数)largequantitiesof+n.许多(作主语，谓语用复数)inquantity大量地注意：可接不可数名词或可数名词复数。3.quantityn.数量(与quality相对)运用：用所给动词的适当形式填空。⑴Alargequantityofair-conditioners_____(have)beensoldsincethetemperatureishigh.has⑵Largequantitiesofinformation_______(have)beencollected.⑶Itischeapertobuygoods_______quantity.inhave4.rangen.种类；变化范围,排;v.涉及,延伸arangeof一系列，一套(同类)rangebetweenAandB在A和B之间变化或变动rangefromAtoB从A延伸到B；从A到B不等运用：用适当的词填空或根据提示完成句子。⑴Hehasawiderangeofinterests,_______(range)fromchess______canoeing.⑵Theiragesrange_______25to50.rangingtofrom⑶边界从北部山地一直延伸到南部海岸。Thefrontier________fromthenorthernhills______thesoutherncoast.rangestoin/underthecircumstances在此种情况下in/undernocircumstances决不，无论如何都不用法：意为“环境，情况”时，多用复数形式。5.circumstancen.环境；情况运用：根据汉语意思完成英文句子。⑴在这种情况下，最好别告诉他事故的情况。__________________________，itisbetternottotellhimabouttheaccident.⑵你无论如何都不要借钱给他。_____________________________youlendhimmoney.In/UndernocircumstancesdoIn/Underthecircumstances重点短语与句型1．comeabout发生；造成comesaboutthat...……发生Howdoesitcomeaboutthat...？……是怎样发生的？Itcomesaboutthis.事情是这样发生的。comeabout相当于happen或occur，均无被动形式(1)Canyouexplainhowitcameaboutthatyouwereanhourlate?你迟到一个小时，你对此怎样解释？(2)Withtheuseofelectricity，greatchanges.随着电的使用，巨大的变化发生了。likeaboutithavecome拓展：填入适当的词完成下列短语。⑴come_______(偶然)遇见(或发现)⑵come_______出身于；来自⑶come_______出版；发行；结果是⑷come_______上来；上升；抬头⑸come_______来到；共计；达到⑹come_______变成现实；成为事实trueacrossfromoutupto2.goup(=rise)上升；增长；升起运用：用适当的词填空或用所给词的词适形式填空。⑴Inourarea，thepriceofthenewhousehasgoneup_____1000yuanpe