2018年高考英语一轮复习Unit4Wildlifeprotection单元知识（含解析）新人教版必修2

《2018年高考英语一轮复习Unit4Wildlifeprotection单元知识（含解析）新人教版必修2》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、Unit4Wildlifeprotection〕重点i司匸*1.★decrease（使）变小；减少n.减少^from在……基础上减少Jin在方面减少decrease^.to减至；减少到、by减少了onthedecrease在减少adecreaseinsth某事物的减少研Theworkerswantedtodecreasethenumbcrofworkinghoursandtoincreasepay.工人们想要减少工作时间，涨工资。bTherehasbeenasteadydecreaseinpop

2、ulationinthiscity.这个城市的人口在不断减少。【拓展延伸】increasev.&n.增加，增长，增进increaseby/to...增加了/到ontheincrease在增加中【名师点津】”了”与”到”的区别：表"减少/增加了"时,decrease和increase后都要接介词by；表"减少/增加到”时，decrease和increase后都要接介词to。【跟踪典例】用适当的介词填空1.Comparedwithlastyear,ourcoaloutputhasdecreased2

3、0percent.2.Thenumberofnewstudentsdecreased210160thisyear.3.Theworldpopulationistheincrease.【答案】1.by2.from;to3.on2.★dieout灭亡；逐渐消失町Asaresult,theseendangeredanimalsmayevendieout.结果这些濒危动物其至可能灭亡。f^Manytraditionalcustomshavediedoutbecausetheyareoutofdate.因

4、为己经过时，许多传统风俗已逐渐消失。【拓展延伸】dieof因……而死（一般指死于内因，如疾病、饥饿、情感原因等）diefrom因……而死（一般指死于外因，如外伤、车祸、污染等）dieaway（声音、风、光等）慢慢变弱，渐渐消失diedown（兴奋、火等）渐弱，渐息，平息dieoff（家庭、种族等）相继死亡，（草木）先后枯死【跟踪典例】用die构成的短语完成句子1.Thiskindofanimalintheworldadecadeago.2.Thedeerintheforestareallforl

5、ackofwater.3.Unfortunate1y,thesoldierawoundinthechest.4.Nowadaysmanypeoplecancer.【答案】1.diedout2.dyingoff3.diedfrom4.dieof3.★indanger（of）在危险中；垂危反义短语为outofdanger（脱离危险）。町Whyaretheyindangerofdisappearing?为什么它们处于消失的危险屮？【特别提醒】indanger扌旨人或物本身处于危险中，受到外来的威胁。d

6、angerous指人、物、事态可能造成危险，対別人构成威胁。【巧学妙记】图文注解话”危险flbWeshouldkeepcalmindanger.我们在危险的时候应该保持冷静。Adangeroustigerisrunningafteralittlegirl,whoisindanger.一只危险的老虎正在追赶一个小女孩,她的处境很危险。【拓展延伸】”介词in+名词“构成的短语知多少silence沉默地insurprise吃惊地inamazement惊奇地inpeace平静地，安详地inrelief如

7、释重负incase以防inreturn作为回报inreward作为回报【跟踪典例】用danger构成的短语完成句子LastmonthJanewasseriouslyillandwas・Thankstothedoctors,shereceivedtheoperationintimeandsoshewasatlast.Unfortunately,whenshecamebacktothefactory,shelearnedthatshewaslosingherjobbecausethebossthou

8、ghtshewastooweaktodothework・【答案】1・indanger;outofdanger;indangerof1.★reliefn.（痛苦或忧虑的）减轻或解除；减轻痛苦的事物inrelief如释重负；松了口气thereliefof.的消除/减轻toone'srelief使某人欣慰的是研InreliefDaisyburstintolaughter.黛西如释重负，突然笑了起来。bThep订Isgavehimsomereliefforthemoment.药片暂时减轻了他的痛苦。bT