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Unit2I’llhelptocleanupthecityparks.一、重点词组和短语1.cleanup2.putup3.cheerup4.setup5.fixup6.callup7.thinkup8.giveup9.useup10.mixup11.catchup12.ranup13.handout14.giveout15.giveaway16.putoff17.helpout18.helpothers19.otherways20.bestrongin21.begoodat22.beinterestedin23.bebusywith24.besimilarto25.beableto/beunableto26.beworriedabout27.beexcitedabout28.bedifferentfrom29.beangrywith30.bethesameas31.atthefoodband32.inanafter-school33.inanoldpeople’shome34.children’shome35.attheageof36.atthesametime37.comeupwith38.Clean-upDay39.formnow40.carefor41.severalhours42.eachweek43.suchastrongfeelingof44.tryout45.homelesspeople46.worryabout47.thinkabout48.raisemoney49.usedtodo50.takeafter51.writealettertosb52.athank–youletter53.thankyoufordoing54.givesthtosb55.disabledpeople56.makeadifference57.normalthings58.answerthetelephone59.carrythings60.afriendofmine61.aspecialtraineddog62.aphotoofhim63.changeone’slife64.bestwishes65.interestsandhobbies66.atonce67.becauseof二.词形转换：1.cleanv----cleanernfeelv----feelingnownv----ownerntrainv----trainingn2.excitev----adjexciting/excitedinterestv----adjinteresting/interestedbreakv----adjbrokendisablev----adjdisabled3.bindadj----nkindnessdifficultadj---ndifficulty/pldifficulties4.strongadj----advstronglylonelyadj----advalone5.v原----v过去式understand----understoodset----setcarry-carriedfix-fixedchange--changed6.home----adjhomeless三、同义词：1.cheerup=makesbhappier2.setup=putup3.fixup=repair=mend4.callup=telephonesb5.thinkup=comeupwith6.giveup=stopdoing7.useup=runoutof8.giveout=handout9.carefor=lookafter=takecareof10.takeafter=besimilarto=looklike=belike11.bestrongin=begoodat12.atonce=rightaway=inaminute13.twoweeksfromnow=intwoweeks14.alone=withoutanybodyelse=byoneself15.Yousee=Youknow16.several=afew=some四、词语辩析1.aloneadv.独自livealonetravelalonelonelyadj.孤独的feellonelyalonelykid2.usedtodosth.过去……be/getusedtodoingsth.习惯于做……五.语法：动词不定式的主要用法（一）、动词不定式在句子中不能独立充当谓语，没有人称和数的变化。（二）、动词不定式是由“to+动词原形”构成(有时可以不带to)。动词不定式的否定形式是“not+动词不定式”（三）、动词不定式短语具有名词、形容词和副词等的功能，可在句中用做多种句子成分1.动词不定式做主语：常置于句末，而用it代替其做形式主语。It’s+adj.forsb.todosth.Ittakessb.(时间/金钱)…todosth.makeit+adjforsbtodosthIt’simportantforustostudyhard.Ittakesmefifteenminutestogoschoolonfoot.Youmakeitpossibleformetofinishmywork.2.动词不定式做宾语:wanttodowouldliketodoplantodotrytodoforgettodohopetodoexpecttodolearntododecidetodovolunteertodolovetodoneedtodo…3.动词不定式做宾补：asksbtodosthtellsbtodosthwantsbtodosthadvicesbtodosthhelpsb(to)dosthe.g:Mymothertoldmenottoplaywithbadboys.4.动词不定式做目的状语Thisgroupwassetuptohelpdisabledpeoplelikeme.Iwanttofindagoodjobtomakelotsofmoney.5.动词不定式和疑问词连用：Idon’tknowwhattodo.howtodoit.WhentostartWheretogoIwanttolearnmoreabouthowtocareforanimals.