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1.varietyn.avarietyof多种多样的=variouseg:Everyonearrivedlateatthepartyforavarietyofreasons.varietiesof各种……=variouseg:Aneagerfarmerisalwayslookingfornewvarietiesofwheat.varyv.变化variousa.各种各样的variationn.改变，变化variablea.易变的，无常的diverse(adj.)----diversify(v.)----diversity(n.)----adiversityof=diverse2.due:expectedorsupposed预期的，约定的；到期的；适当的dueto…由于，因为Eg:Hisillnesswasduetobadweather/thefactthathecannotadapthimselftotheclimateofanewplace.….水土不服induecourse在适当的时候，适当时机Youmustreturnthebookstothelibrarybeforetheyaredue.Wemustpaydueattentiontothespellinginourwriting.beduetodosth按照约定时间或者地点做某事eg.ThetrainisduetoarriveinShanghaiat3:00am.3.confidence–confident—confidential(机密的）inconfidence秘密地，推心置腹地private&confidential机密Eg.Iwilltellyouthisinconfidence.withconfidence信心十足地Eg.Heacceptedthetaskwithconfidence.beconfidentofsth对什么自信eg.Heisconfidentofhisabilitytopasstheband4exam.4．assurevt.使确信;向...保证;assuresbofsth.assuresbthat…egIassureyouthatIwillnotsayawordaboutthistoanyone.Icanassureyouofthereliabilityoftheinformation.insure“给…保险，投保”，常与against搭配eg.Itwouldbewisetoinsureyourhouseagainstfire.insurancecompany保险公司ensure=makesthensureensurethat…(保证)…)ensuresbsth(保证某人得到某东西)eg.Toensurethechild’squickrecovery,thedoctorgavehimanantibiotic.Iwillensureyoutheticket.guarantee“保证，确保，为…担保”eg.guaranteeaproductTakethisopportunity,andIguaranteethatyouwon’tregretit.Itisstillunderguarantee,sothemanufacturewillrepairit.(仍在保修期)Giveaguaranteeofone’sgoodbehaviour.5.conquer(vt):defeatorovercome克服,征服eg.Itisveryhardtoconquerbadhabits.conquerable(adj.)→conqueror(n.)征服者,胜利者→conquest(n.)征服conquer和overcome辨析conquer:征服，多指用暴力或斗争使其他事物置于控制之中。overcome:克服，强调艰苦的斗争，排除障碍而取得胜利，多用于克服精神方面的东西。eg.TheGermansconqueredmostoftheEuropeanContinentin1941.Wemustovercomeourshortcomings.6.dayshift白班shiftone’sground改变立场shiftforoneself自谋生计shiftfrom…to…改变位置或者方向eg.Thewindshiftedfromwesttonorth.rangebetweenAandB在A和B之间变化或者变动;rangefromAtoB从A延伸到Beg.Theiragesrangefrom25to50.Pricesrangebetween$7and$10.7.impressvt.(1)(oftenpassive)使…获得深刻印象(oftenpassive)使…获得深刻印象;铭刻，使铭记beimpressedby/with(主语人)被什么留下深刻影响beimpressedupon/on(主语物)使某人牢牢记住eg.Hiswordsarestronglyimpressedonmymemory.Thebeautifulsceneryisstronglyimpressedonmymind.Iamveryimpressedwiththebeautifulscenery.Theteacherisdeeplyimpressedbythestudents’abilitytosolvetheproblem.(2)铭刻，使铭记impresssb.withsth给……留下什么印象impresssthon/uponsb铭刻……心中impresssthin/onone’smemory使…铭记在心Eg.Heimpressedmewiththevalueofhardwork.Hiswordsimpressthemselvesonmymemory.Thegirlimpressedherclassmatewithhersenseofhumor.(3)tomakeamarkbypressing[into,to]用硬物压上软物留下印记impressone’sfingerontheglassadj.animpressivespeechn.haveimpressiononsth8.considerconsidered:carefullythoughtout深思熟虑的EgHehopedthatthecommitteewouldthinkabouthisconsideredopinion.considerate:考虑周到的，体谅的considerable相当多的considerable:相当大（多）的considerationn.考虑，要考虑的事takesthintoconsideration/account考虑到…consideringthat…考虑到…considering:就…而论，照…来看egSheisveryactive,consideringherage.consider…as/tobe=regard…as=thinkof…as=lookupon…as9.schedule(n.)=timetable程序表，时间表，节目表(v.)做……的目录，安排aTVschedule电视节目表atrainschedule火车时刻表aheadofschedule提前behindschedule晚点onschedule准时haveafullschedule:有很多情要做bescheduledtodosth.按时间日程计划做……eg:Thepresidentisscheduledtomakeaspeechthisevening.10.relieve=giveorbringrelieftosb.re+lieverelievesb.ofsth.帮助某人拿（提/做等）；使某人免于……eg.Themedicinethedoctorgavehimrelievedhisheadache.Wemustrelievethestudentsoftheirburdenfromstudy.reliefn.(much)toone’sreliefeg.Whenthedangerwasover,sheutteredasignofrelief.(松了一口气)Tomygreatrelief=Muchtomyrelief,Iwasn’tlate.relieved(感到或者显得)宽慰的,放心的arelievedsmile/look/expression11.envy羡慕别人拥有的东西同时也希望自己也拥有envysth.eg.Shehasalwaysenviedmysuccess.envysbsth.egIenvyhimthatjob.envydoingeg.Ienvyyouhavingsuchagoodopportunity.n.envyofsbenvyat/ofsthEg:Hecouldn’tconcealhisenvyofme.Hercolleaguesweregreenwithenvy.betheenvyofsb成为羡慕或忌妒的对象enviousadj.羡慕的，忌妒的beenviousofsb/sthEg:Theywereenviousofhissuccess.enviableadj令人羡慕的jealous(adj.)----jealousy(n.)妒忌，贬义词bejealousofsb.嫉妒某人showjealousyto/towardssb.eg.HewasjealousofTom/Tom’ssuccess.Sheshowsstrongjealousytoothergirls’beauty.12.convinceconvincev.tomakecompletelycertainaboutsth;persuadeconvincesb.ofsth.使某人确信某事，后面必须接人做宾语，不能做不及物动词。Eg.HowcanIconvinceyouofherhonesty?convincesb.that…eg.WhatshesaidconvincedmethatIwasmistaken.辨析：convincesb.说服某人believesb.相信某人说的话Hecouldn’tconvincehisfatherthatJohnwastellingthetruth.convincingadj.令人信服的convincedadj.被说服的13.failuren.v.failfail-failure;close-closure;expose-exposurefailv.failtodoeg:Ifailedtocatchthelastbus,soIhadtowalkhome.failsb.in…使某人在某方面不及格failinsth/doingstheg:failinchemistrywithoutfail务必Eg.Youmustpassthetestwithoutfail.14.involvevt.causetobecomeconnectedorconcerned使卷入→involvement(n.)makesthnecessaryasaconditionorresult使成为必要条件或结果involvesb/sthin(doing)sth使某人某物卷入或陷于eg.Don’tinvolveotherpeopleinyourmadschemes.Buildingtheroadwillinvolvetheconstructionoftenbridges.Don’tinvolvemeinsolvingyourproblem.Thejobinvolvedme/mylivinginLondon.Takingthejobwouldinvolvelivingabroad.be/getinvolvedin被……卷入,牵涉；使专心于be/getinvolvedwith与……混在一起；与……密切联系eg.Don’tinvolvemeinyourquarrel.Allthech