2018届高考英语一轮复习教案：选修8 Unit 22 Environmental

1●Error!选修8●[话题素材]好词1．beautyv.美化2.destroyv.破坏3．wasten.废弃物；vt.浪费4.harmonyn.和谐5．environmentn.环境6.influencen.影响7．befacedwith面临8.dieout灭绝9．throwaway丢弃10.forlackof因缺乏11．inharmonywithnature与自然和谐相处12．resultin导致佳句1．Waterresourceshavebecomesobadlypollutedthatsomeofthewateris_unfit_to_drink.水资源受到了严重污染，一些水不适宜饮用。2．It's__important_to_recycle_thethingsthatcanberecyclable.回收利用可再循环的东西是很重要的。[精美语篇]Nowadays，withthenumberofcarsincreasingfastinourcity，ourenvironmentisgettingincreasinglyworse.Oneofthereasonsisthattherearemorecarsthaneverbefore.Althoughdrivingcarsreallymakesourlifeeasier，ithasabadeffectonourenvironmentbygivingoffwastegas.Attimes，theairgetssobadlypollutedthatpeoplehavetoputonmasks.Inaddition，trafficjamsarecausedmainlybecauseoftoomanycarsontheroads.Ifpeoplechoosetoridebicyclesinsteadofdrivingcars，ourlifewillbecomebetter.高频单词1．trap(vt.)使困住2．beyond(prep.)超出3．relevant(adj.)相关的→relevance(n.)相关(性)4．agriculture(n.)农业→agricultural(adj.)农业的5．coincidence(n.)巧合→coincident(adj.)同时发生的6．reserve(n.)保护区(vt.)保留；预订→reserved(adj.)预定的，保留的→reservation(n.)预订；保留27．advocate(vt.)主张，提倡→advocacy(n.)拥护，提倡8．substitute(n.)代替品，代用品9．threaten(vt.)威胁→threat(n.)威胁10．separation(n.)分离，分开→separate(vt.)分离；分开(adj.)不同的；各自的11．means(n.)方法→means(pl.)12．construct(vt.)建造→construction(n.)建造13．adopt(vt.)采用，收养→adoption(n.)收养；采用14．considerate(adj.)想得周到的，体贴的→consider(v.)考虑→consideration(n.)考虑；体贴15．finance(n.)资金→financial(adj.)财政的，金融的16．allocate(vt.)分配，配给→allocation(n.)分配；配给17．politics(n.)政治(活动)→political(adj.)政治的→politician(n.)政治家18．sharpen(vt.&vi.)削尖→sharp(adj.)尖的；锐利的重点短语1．beyond_one's_control　超出……的控制，不受……的控制2．look_ahead展望未来3．refer_to指的是；参考，查阅4．in_turn依次5．take_action采取行动6．ahead_of在……的前面7．lead_to引起，导致8．apart_from除……之外9．answer_for(对已产生的不良后果)负责任10．call_for_an_end_to_sth.要求结束11．or_else否则，不然12．onone'sbehalf代表13．forgood永远14．carryoff掠去，夺走15．allinall总的来说16．earnone'sliving谋生17．plugone'sears塞住耳朵18．allthebest祝一切顺利19．sumup总结，概括20．asamatteroffact实际上热点句型1．lookingahead为动词­ing形式作状语Looking_ahead,_scientistsbelievethatglobalwarmingcouldbeoneofthebiggestenvironmentalproblemsfacingthe21stcentury.(教材P6)展望未来，科学家们认为全球变暖是21世纪所面临的最大的问题之一。32．leave＋宾语＋宾语补足语Withoutthesenaturallyoccurringgases,thesun'srayswouldbouncebackintospaceleaving_the_Earth_cold_and_impossible_to_live_on.(教材P6)如果没有这些自然产生的气体，太阳的能量将会被反射回太空去，地球将处于寒冷之中，而不适合生命的存在。3．given用作介词，表示“鉴于，考虑到，倘若”Giventhisdata,itseemsthatthelinkbetweenhumanactivitiesandrisingglobaltemperaturesisnotmerelyacoincidence.(教材P6)鉴于这些数据，好像人类活动与正在升高的地球温度之间的联系并不仅仅只是巧合而已。4．madebyeveryoneworldwide为过去分词短语作后置定语Ifweaddupallthesesmallchangesmade_by_everyone_worldwide,_theywon'tbesuchsmallchanges.(教材P6)如果我们把全世界每个人所创造的小改变叠加起来，那将不再是小变化。5．英语中的拟人手法The_last_few_years_have_seenenvironmentaldisastersonagrandscale,andexpertsarepredictingfarworsetocome.(教材P10)过去的几年经历了大规模的自然灾害，专家预测以后将会更糟。教材复现在空白处填入适当的内容(1个单词)或括号内单词的正确形式。1．Theyclaimthatinthelast50years,gases________(pump)intotheEarth'satmospherebythefactoriesandvehicleshave________speedinguptheprocessofglobalwarmingandaffectingourclimate.答案：pumped;been2．Butwhatexactlyisglobalwarming,whyisit________(see)asadanger,andhowisitrelevant________ourlives?答案：seen;to3．Whenthepresenceofthesegasesintheatmosphereincreases,________，moreheatis________(trap)andtheEarth'stemperaturerises.答案：however;trapped4．Theamountofcarbondioxideintheatmospherehasrisen________morethan30%inthelast250yearswithhalfofthisincrease________(occur)since1960.答案：by;occurring5．Recentreports________(warn)thatglobalwarmingwillcauseterribleclimatechangesincludingmorefrequentflooding,heatwavesanddroughts.答案：warned6．Governmentsallovertheworldhavea________(responsible)toreducetheamountofcarbondioxide________theircountriesareproducing.答案：responsibility;which7．Thiscatastropheisstillveryfreshinthemindsofpeopleworldwide________havenotyetgotovertheirseparationfromlovedones________(lose)inthetsunami.4答案：who;lost8．Thesehomes,seldommadeofbricks,can________(easy)falldowninearthquakesorslipandslidedownhillinlandslides,especiallyin________(mountain)areas.答案：easily;mountainous9．Volcanoesandearthquakesareevenmoredangerous________inthepastasaroundhalftheworlDspopulationnowlivesincities.答案：than10．Anevengreaternumberofpeopleliveatrisk,tosomedegree,fromearthquakeswhichhaveclaimedmorethan1.6million________(life)inthelasthundredyears.答案：lives1　　trap　vt.使困住；诱捕；诱骗；使陷入困境　n.陷阱；圈套；困境，计策Becauseofthegreenhouseeffect,theEarthiswarmedbygasestrappedintheatmosphere.(P5)因为温室效应，困在大气层中的气体使得地球气温上升。(1)trapsb.into(doing)sth.使某人陷入(做)某事的圈套be/feeltrapped陷入困境be/gettrappedin被困在……中(2)fall_intothetrapofdoingsth.落入……的圈套getout_ofatrap摆脱圈套set/lay/placeatrapfor为……设圈套①[2015·湖北高考]Theponyhadactuallybeentrappedbetweentworocks.事实上小马驹被困在两块岩石之间。②[译林⑦－4]Having_been_trapped_intraffic,hewaslateforwork.因为交通堵塞，他上班迟到了。③[朗文词典]Upto25peoplemaybe_trapped_intheburningbuilding.可能多达二十五个人被困在失火的大楼里。④[牛津词典]Youfellrightintomytrap.你恰恰中了我的计。⑤[2013·北京高考]Gracelosthertailasababywhenshegotcaughtupinafishtrap.Grace在小时候被困在鱼网中，丢失了它的尾巴。2　　reserve　n.保护区；储藏，储备；后备军　vt.保留，储备；预订；保持Breweriesareoftenbuiltinnaturereserves.(P5)啤酒厂经常建在自然保护区里面。5(1)reservesth.forsb.