大学综合英语unit 4答案详解

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1、Unit4I.VocabularyAnalysis1.Phrasepractice1.livelifeup=tohaveaveryenjoyableandexcitingtime积极向上地生活e.g.Iwasdeterminedtolivelifeupafterwitnessingthetragedy.目睹那场悲剧之后，我决定要积极的生活。2.turnone’sbackon=togoawayfromorrefusetobewith拒绝帮助e.g.Ican’tturnmybackonfriendswhoareinneedofhelp.我不能在朋友需要的时候拒绝他们。Theydidn’ts

2、eeeachothersinceheturnedhisbackonher.自从他拒绝帮助她，他们就再也不联系了。3.stickitout=nottogiveup坚持到底e.g.Aslongasyoustickitout,youwillhaveyourday.只要你坚持到底，你总会成功的。Bebrave,andstickitout!勇敢一点，坚持到底！4.gothroughsomuch=toexperiencesomuchpainandstress经历辛苦e.g.Whydoyouquitnowaftergoingthroughsomuch?经历了那么多艰辛，你怎么现在放弃了呢？2.Wor

3、dcomparison1.tighten:ifyoutightenyourgriponsomething,orifyourgriptightens,youholditmorefirmlyorsecurelye.g.Stefano’sgriptightenedandhistonebecamecolder.strengthen:tomakesomethingstrongerormoreeffective,ortobecomestrongerormoreeffectivee.g.Theyhavebeenstrengtheningtheirborderdefensesinpreparation

4、forwar.lengthen:tomakesomethinglongerortobecomelongere.g.Thedayslengthenedassummerapproached.widen:ifyouwidensomethingorifitwidens,itbecomesgreaterinmeasurementfromonesideoredgetotheothere.g.Theriverwidensconsiderablyasitbeginstoturneast.2.disturbed:notthinkingorbehavingnormallybecauseofmentalor

5、emotionalproblemse.g.Thisisacenterforemotionallydisturbedteenagers.bothered:worriedorupsete.g.Hedoesn’tseemtoobotheredaboutthethingsthatarewrittenabouthiminthepapers.worried:whenyouareworried,youareunhappybecauseyoukeepthinkingaboutproblemsthatmighthappeninthefuturee.g.Ifyou’reatallworriedabouth

6、isprogress,dodiscussitwithoneofhisteachers.troubling:somethingthatistroublingmakesyouworriedornervouse.g.Sometroublingquestionsremainaboutthelegalstatusofhumancloning.3.asto:aboute.g.Hewasuncertainastowhichroadtotake.intermsof:ifyoutalkaboutsomethingintermsofsomethingorinparticularterms,youaresp

7、ecifyingwhichaspectsofityouarediscussingorfromwhatpointofviewyouareconsideringite.g.ParishasplayedadominantroleinFrance,notjustinpoliticaltermsbutalsoineconomicpower.concerned:involvedinsomethingoraffectedbyite.g.I’dliketoth