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课堂练习---现在完成时1.写出下列动词的过去式和过去分词throw___________________come__________________read___________________buy_____________________take____________________sell___________________hear____________________break____________________go_____________________teach_____________________2.用have/hasbeento和have/hasgoneto填空—Hi，Lucy_____youever_______Beijing？—No，I______.—Whataboutyoursister，Lily？—Oh，she_______________Chengdu，shewillcomebacknextweek.—Ok，thanks.—You’rewelcome.3.(1)She_______________yesterday.She______already_________school.(2)---____Liuxiang___agoldmedalin2004OlympicGames?—Yes,________.—______Liuxiang_____agoldmedalyet?—Yes,_________.(3)---John________abookfromhisteacherinAugust.---John_______________abookfromhisteacher.Heisreadingthebooknow.(borrow)4.用for和since填空（1）Wehaven’tseeneachother______alongtime.（2）HisfatherhasbeenintheParty______10yearsago.（3）Thefilmhasbeenon______20minutes.（4）MrGreenhasworkedhere______hecametoChina.（5）Hisgrandparentshavebeendead______severalyears.（6）It’sfiveyears_______wemetlasttime.5.造句并写出同义句。Jerry十年前到达英格兰。非延续性动词arrivein------___________________________________________________=______________________________________=______________________________________=______________________________________Jerry已经到达英格兰10年了。Jerry已经到达英格兰了。6.改错(1)Tomhasgotupforhalfanhour.(2)LiuMeihasjoinedtheLeagueforthreeyears.(3)Thetrainhasreachedthestationsince10minutesago.(4)Thelittlegirlhasfallenasleepforfourhours.(5)Howlonghaveyoucaughtacold?(6)Shehasgottenlettersfromhermothersincelastweek.gotoschool课后练习---现在完成时1.（2016•永州）-___youever___totheGreatWall？-Yes，Threetimes．A．Has，beenB．Have，beenC．Have，gone2.（2016•宁夏）-Look!Someone_______theclassroom．-Well，itwasn'tme．Ididn'tdoit．A．iscleaningB．wascleaningC．hascleanedD．willclean3.（2016•威海）---Isthatanewcoat？---No，I_____itforalongtime．A．boughtB．haveboughtC．havehad4.（2016•福州）-Theboymissshisparentsverymuch．-Sohedoes．They___thehometownfornearlytwoyears．A．haveleftB．willleaveC．havebeenawayfrom5.（2016•苏州）-HoboandEddiethecinematowatchthefilmZootopia．-Oh，that'swhyIcan'tfindthemnow．A．havegonetoB．havebeentoC．hasgonetoD．hasbeento6.（2016•武汉）Idon'tfeelverywell，Jack．I'mafraidyou______meyourcold．A．giveB．hadgivenC．havegivenD．wouldgive7.（2016•北京）It'snicetoseeyouagain．Weeachothersince2014．A．won'tseeB．don'tseeC．haven'tseenD．didn'tsee8.（2016•张家界）-youeverthehistorymuseum，Paul？-No．Ihaven't．A．Do；visitB．Did；visitC．have；visited9.（2016•郴州）Yangjiang，afamousfemalewriter，_____________forabutamonthsofar．A．diedB．hasbeendeadC．hasbeendied10.（2016•黔南州）Rick____alotaboutChineseculturesincehecametoChina．A．haslearnedB．willlearnC．learnsD．learned二、用适当形式填空。1.I___________(be)busythesedays.I____________(notgo)tothecinemaforweeks.2.Howmanyunits______you_______(learn)sofar?3.Lilywithherparents________(go)toSanya.Theywillbebackinfivedays.4.Alice_________(make)severalfriendssinceshe______(come)toChina.5.________yourbrother_________(drive)ahorsebefore?三、延续性动词和非延续性动词之间的转化1.Hedied10yearsago.----He______________for10years/since10yearsago.2.Heborrowedthebook2weeksago.-------He_____________thebookfor2weeks.3.Heboughtthemotorbikeamonthago.------He___________themotorbikeforamonth.4.Helefthere2yearsago.-------He____________fromherefor2years.5.Thefilmbegan30minutesago.------Thefilm__________for30minutes.6.Theyclosedthedooranhourago.--------Thedoor___________foranhour.7.Hejoinedthearmylastyear.-------He_____________thearmyforayear.观察8个句子，总结现在完成时的含义。1.Haveyoueverwonanyprizesbefore?2.IhaveneverbeentoAmerica.3.Ihavejustmadeakite.4.Astronautshavealreadybeentothemoon.5.Haveyoucheckedyourpassportsyet?6.Wehaven’tfinishedourhomeworkyet.7.Ihaven’tseenTomsincelastyear.8.Ihavekeptthisbookforthreemonths.现在完成时含义1.到目前为止发生或完成的动作，表示一种经历或经验。（1）ever，never，sofar，once,twice,threetimes…（2）have/hasgoneto去了某地（说话时某人不在）have/hasbeento去过某地（常与ever,never,once,twice等连用）表示一种经验或经历have/hasbeenin在某地（与时间段连用，提问时，用howlong）2.过去已经发生的动作，对现在产生的结果或影响。（1）just“刚，就”肯定句，句中already“已经”肯定句，句中yet“还”否定句&一般疑问句，句尾（2）现在完成时与一般过去时相同点：都是发生在过去的动作区别：现在完成时强调对现在产生结果或影响，一般过去时不涉及对现在的影响现在完成时时间状语：just,already,yet,since,for,once…不与过去的时间状语连用一般过去时时间状语：yesterday,lastweek,…ago，in1990…3.动作发生在过去，并一直持续到现在（1）for+时间段since+时间点（过去）（2）现在完成时中，和一段时间连用，应该使用延续性动词常见的非延续性动词与延续性动词的对应关系如下open-----beopendie------bedeadclose----beclosedbecome---beborrow---keepbegin/start-----beonputon----wear,beonleave-----beaway(from)buy-----havesleep/fallasleep----beasleepend/finish-----beovercatchacold-----haveacoldcomeback—bebackgetup---beupcome/go/arrive/get/reach/move------bein/atgotobed----beinbedjointhearmy----beinthearmy/beasoldiergoout----beoutjointheParty----beintheParty/beaPartymember