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返回1．vi.退休→n．退休2．vi.表现→n．执行者；表演者→n．表现；表演3．n．冠军→n．冠军地位；锦标赛retireretirementperformperformanceperformerchampionchampionship4．vt.宣布→n．宣言，声明5．n．竞争者→v．竞争—————n.竞赛6．n．优势，长处→______________(反义词)n.缺点，弱点declaredeclarationcompetitoradvantagedisadvantagecompetecompetition1.trackn./vt.1)跑道arunningtrack2)痕迹，足迹animaltracksWefollowedhistracksinthesnow.3)小道，小径amountaintrackTheypassedamuddytrackthroughtheforest.4)轨道,铁路Thecountryhasthousandsofmilesoftracks.vt.跟踪Thehuntersaretrackingbears.Wecontinuedtrackingtheplaneonourradar.keep/losetrackofsb/sth了解..的动态,与..保持联系backontrack重新步入正轨I_____________time.=forgotwhattimeitisBankstatementshelpyou_____________whereyourmoneyisgoing.Hetriedtogethislife_______________afterhisdivorce.losttrackofkeeptrackofbackontrack2.perform1)v.演出，表演Whenwilltheplaybeperformed?2)vt.执行；履行(carryout)performanexperiment/operationperformone’spromise/duty3)vi.(人)表现,（机械）运转~well/badly/poorlyOurteamperformedwelllastnight.Theengineseemstobeperformingwell.give\putonperformances(演出)performern.演出者3.advantagen.disadvantagen.1)have/gain/winanadvantageoversb./sth.比……有优势2)takeadvantageofsb/sth利用3)toone’sadvantage=totheadvantageofsb.对某人有利Beingtallgavehimanadvantageovertheotherplayers.Hetookadvantageofmygenerosity.Thecontractistoyouradvantage.4.guaranteevt.保证,保修n.保证书,担保~(sb.)sth;~sthtosb.~(not)todosth;~that…guaranteesatisfactionWeguaranteeyoudeliverywithinoneday.我的表保修三年.我保证明天不迟到．我保证你会喜欢这部电影．beunderguaranteeMywatchisstillunderguarantee.Mywatchhasatwo-yearguarantee.Mywatchisguaranteedforthreeyears.Iguaranteenottobelatetomorrow.Iguaranteethatyouwilllovethisfilm.5.retirevi.退休retirefrom…从….退休retiredadj.退休的retirementn.After_______fromthearmy,ittookalongtimetoadjusttohispresentlife.Myparentsareboth________teachers.At60,hewasnowapproaching__________.retiringretiredretirement6.specificadj.1.具体的tobeexact~instructions/orders---I’dlikeyourhelptomorrow.---Canyoubemorespecific?2.特定的~agegroupsThemoneywascollectedforaspecificpurpose.7.declarevt.宣布，声明declaresth/that从句declarewaronsb对….宣战declaresthopen宣布…开幕declaresb(tobe)thewinner宣布某人获胜Thedoctorfinallydeclaredthatthemanwasdead.TomwasdeclaredthewinneroftheEnglishcompetition.Policehavenowdeclaredwarondrugdealersinthearea.declarevt.申报….Doyouhaveanythingtodeclare?Anywines,spiritsorperfumes?declarationn.theDeclarationofIndependencethedeclarationoflove/war8.toughadj.1.艰苦的（difficult/hard）atoughtime/period/childhoodatoughdecision/problem2.严厉的，强硬的（strict/firm）betoughonsb.=bestrictwithsb.It’sabouttimeteachersstartedtobetoughonsomestudents.3.强壮的,坚韧的(strong)~character,a~man4.坚固的,硬的（noteasilycut,torn,broken）atoughpairofshoes~plasticlaunchvt.&n.1)发动，开始进行startlaunchacampaign/anattack/astrike/aproject2)推出，发行（产品）makesthavailableforsalelaunchanewbook/anewbrand3)发射senduplaunchasatellite/arocket4)使船下水put…intowaterlaunchaship5)Thelaunchoftherocket/newbook