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ID:55271762
大小:866.00 KB
页数:9页
时间:2020-05-12
《过去完成时态.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、过去完成时构成:助动词had+动词的过去分词(V.pp)用法:强调过去某一动作发生在另一动作之前。过去完成时:强调“过去的过去”他说他以前见过你。Hesaidthathe______________(see)youbefore.hadseen1.用于宾语从句中,表示在说话前已完成。可和already,never,ever,yet等连用。Eg:1.他告诉我说他们队已经赢了。Hetoldmethathisteam_________already___________(win).hadwon2.她说她仍没去过长城。Shesaidthatshe_____
2、__________(notgoto)theGreatWallyet.hadn’tbeento过去分词的构成:1.规则动词的变化:a)一般情况下在动词后面加edwork------workedplay--------playedb)以e结尾的动词直接加duse------usedrefuse------refusedc)以辅音字母加y结尾的动词,把y改i再加edstudy-----studiedcarry-----carriedd)以重读闭音节结尾的,前面有单个元音字母时,双写辅音字母,再加edstop----stoppeddrop-------
3、dropped2.不规则动词的变化见课本18---19页过去完成时的构成:由助动词had+动词的过去分词(V.pp)2.还可与when,before,assoonas,till/until等引导时间状语的从句连用,强调动作发生的时间前后。eg:1.她到家之前她的孩子已经睡着了。Whenshegothomeherchildren____________(sleep).hadslept2.在他们到达之前电影已经开始了。Beforetheyarrivedherethefilm_________already___________(start).hads
4、tartedLastnight,assoonasI_______________ (finish)myworkIwenttosleep.3.我完成作业了就去睡觉了。hadfinished3.表过去的过去已开始,这一动作一直持续或还将持续下去。Bysixo’clockthey____________(work)foreighthours.WhenIcametoGZ,he_____________(be)thereforalongtime.1.到了六点钟为止,他们已经工作了八小时了。2.我到广州时,他在那里很长时间了。hadworkedhadbeen
5、3.到上个月底我们在北京住了有五年时间了。Bytheendoflastmonthwe______________(live)inBeijingforfiveyears.hadlived1.到昨晚上,他已写完那封信。Byyesterdayeveninghe___________(write)thatletter.3.当我进来时,他已做完了作业。WhenIcameinhe________________(finish)hishomework.过去完成时与bythen(截止到那时);by9o’clock(直到九点钟)bytheendof…(在…结束/末
6、之前);bythetime…(在…时之前);uptillthen(直到那时);upuntillastnight(直到昨晚)等连用,表示过去的过去。hadwrittenhadfinished时间标志词1.Afterhe______________(finish)hisworkhewentout.hadfinished2.Thechildrenranawayafterthey___________(break)thewindow.hadbroken3.IwenttoTom’shousebuthe__________(go)out.hadgoneExe
7、rcises:4.Annietoldmethathisfather____________(go)toParisandhe____________(come)backinafewdays.hadgonewouldcome5.Myfriend__________(buy)thecartwoyearsago.He________________(buy)itfortwoyears.boughthashadExercises
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