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Unit21takepartin,join,joinin,attend的区别takepartin指参加某种活动，如体育、比赛、游戏、讨论、战斗等，并积极地起着作用。join指参加某组织并成为一员。joinin指参加活动或游戏，和takepartin相当。但joinsb.in…（和某人一起做某事）,不等于takepartin。attend表示参加会议（聚会）等。takepart(in)参加，参与（活动）join加入(某党派、某组织或某社会团体)joinin参加，参与（活动）joinsb.和某人一起……joinsbinsth./doingsth.和某人一起做…….MayI__________________thegame?Whynot___________playingbasketball?_________theParty/League/army/aclubtakepartin/joininjoinjoinusin1.Ourheadmasterwill___usinthediscussionthisafternoon.A.takepartinB.joininC.joinD.attend2.Howmany___willyou___?A.incidents,joinB.events,joininC.accidents,attendD.games,enter3.MygrandpawasintheRedArmy,andhe___theLongMarch.A.joinedB.tookpartinC.attendedD.join4.Therewillbeadiscussiontomorrow;allthosewhowantto____,pleaseraiseyourhands.A.joinB.takepartC.takeapartD.takepartin竞争/竞赛（vi.）.竞赛（n.）,参赛者（n.）,competitioncompetitioncompetecompetecompetitorcompetitorcompetecompetewith/againstsbinsthTheyarecompetingwitheachotherforthechampionofthebasketballmatch.参加…比赛与某人竞争角逐forsth2.AthletescompetingfromallovertheworldThestudentscompeted____thehonorofwinning____eachother_____theschoolsportsmeet.A.for,against,inB.in,with,againstC.against,for,atD.about,in,withShedecidedtocompete_____themodelcontest.Severalcompaniesarecompeting__________eachotherforthecontract.Wedon’tonlycompete_____medal,butfriendshipinagainst/withforExercises1.ItiswellknowntoallthatBeijingwill______the2008OlympicGames.A.hostBhostforC.behostedD.hostwith2.Heactedashosttohisfather’sfriends.A.apersonwhosellsfoodB.apersonwhoreceivesguestC.apersonwhoworksinarestaurantD.apersonwhostaysathome3.Don’tworry.I’llhelpto_____theguests.A.holdB.waitC.acceptD.host4.____theOlympicGamesisagreathonorandagreatresponsibilityforacountry.A.HostingB.HostC.TohostD.Hosted3.findout,find与discoverExercises1.Pleasetakeyourtime.Youaresureto___howtodriveacar.A.findB.discoverC.findoutD.lookfor2.Columbus____theNewWorldin1492.A.foundB.foundedC.foundoutD.discovered3.Wefinally_______whohadstolenthevase.A.foundB.foundedC.foundoutD.discoveredfindout指经过努力有意去“查明”“打听”“弄清楚”find指“找到”“发现”，强调结果。discover指发现本来就存在，但尚未被人所知的事物，地方，思想。4.Ilivedinwhatyoucall“AncientGreece”what=thething(s)that/thepersonthat/theplacethatWhathedidn’tunderstandwasthatnoonebelievedhim.Heisnolongerwhatheusedtobe.Whathedidin;tunderstand=Thethingsthathedidn’t…Heisnolongerthemanthatheusedtobe.1.Afteralongjourney,theycometo____wascalledChinatown.A.whatB.thatC.whichD.theplace2.Atthedinnerpartytheytalkedaboutthepeopleandthings___theyrememberedinseniorhigh.A.whichB.thatC.whatD.whomevery基数词+复数名词5.…andbothareheldEveryfouryearsonaregularbasis.everyfouryears=everyfourthyear每４年，每隔３年每两周，每隔一周每隔几:everyfew+复数名词everytwoweekseverysecondweekeveryotherweek序数词＋单数名词Usually,medicineshouldbetaken_____________________________.（每六小时）Someofyougobackhome____________________________（每隔两个星期）Helikesreadingverymuch,sohegoestothebookshop______________.（每隔几天）everysixhours/everysixthhoureveryeverythreeweeksthreeweeks/everythirdweek/everythirdweekeveryfewdays1.Theseplantsarewatered______.A.eachotherdayB.everyotherdayC.eachoftwodaysD.every...