英語《過去完成時(shí)》PPT課件.ppt

過去完成時(shí),By Villa,構(gòu)成：助動(dòng)詞had + 動(dòng)詞的過去分詞（V.pp),用法：,1. 過去完成時(shí)動(dòng)詞表示過去某一時(shí)間或某一動(dòng)作之前完成的動(dòng)作或狀態(tài)。在強(qiáng)調(diào)過去某一動(dòng)作發(fā)生在另一動(dòng)作之前時(shí)。,過去完成時(shí)：,在強(qiáng)調(diào)過去某一個(gè)動(dòng)作發(fā)生在另一個(gè)動(dòng)作前常常用過去完成時(shí)態(tài)。,1.他說他以前見過你。,He said that he _ (see) you before.,had seen,2. 到六點(diǎn)鐘為止他們已經(jīng)工作八小時(shí)了。,By six oclock they _(work) for eight hours.,had worked,過去分詞的構(gòu)成：,1. 規(guī)則動(dòng)詞的變化：,a) 一般情況下在動(dòng)詞后面加 ed,work - worked,play - played,b) 以 e 結(jié)尾的動(dòng)詞直接加 d,use - used,refuse - refused,c) 以輔音字母加 y 結(jié)尾的動(dòng)詞，把 y 改 i 再加 ed,study - studied,carry - carried,d) 以重讀閉音節(jié)結(jié)尾的，前面有單個(gè)元音字母時(shí)，雙寫輔音字母，再加 ed,stop - stopped,drop - dropped,2. 不規(guī)則動(dòng)詞的變化見課本 94-96 頁,過去完成時(shí)的構(gòu)成：由助動(dòng)詞had + 動(dòng)詞的過去分詞（V.pp),2. 過去完成時(shí)詞可以表示過去某一時(shí)刻之前發(fā)生的動(dòng)作或呈現(xiàn)的狀態(tài)，這一動(dòng)作一直持續(xù) 或?qū)⒗^續(xù)下去。,By six oclock they _ (work)for eight hours.,When I came to GZ , he _(be) there for a long time.,用法：,1. 到了六點(diǎn)鐘為止，他們已經(jīng)工作了八小時(shí)了。,2. 我到廣州時(shí)，他在那里很長時(shí)間了。,had worked,had been,3.到上個(gè)月中旬我們?cè)诒本┳×擞形迥陼r(shí)間了。,By the middle of last month we _(live) in Beijing for five years.,had lived,1. 到昨晚上，他已寫完那封信。,By yesterday evening he _ (write) that letter.,2. 他說他以前見過你。,He said that he _(see) you before.,3. 當(dāng)我進(jìn)來時(shí)，他已做完了作業(yè)。,When I came in he _(finish) his homework.,過去完成時(shí)與 by then(截止到那時(shí)); by 9 oclock(直到九點(diǎn)鐘) by the end of (在結(jié)束/末之前); by the time(在時(shí)之前); up till then (直到那時(shí)); up until last night(直到昨晚）等連用，表示過去的過去。,had written,had seen,had finished,3. 過去完成時(shí)和 already, just, ever, yet 等連用表示過去的過去。,用法：,例如：1. 他告訴我說他們隊(duì)已經(jīng)贏了。,He told me that his team _ already _ (win).,had,won,2. 她說她仍沒去過長城。,She said that she _(not go to) the Great Wall yet.,hadnt been to,用法：,過去完成時(shí)與when, before, as soon as, till/ until 等引導(dǎo)時(shí)間狀語的從句連用，強(qiáng)調(diào)動(dòng)作發(fā)生的時(shí)間前后。,例如：1. 她到家之前她的孩子已經(jīng)睡著了。,When she got home her children _(sleep).,had slept,2. 在他們到達(dá)之前電影已經(jīng)開始了。,Before they arrived here the film _ already _ (start).,had,started,Last night, as soon as I _ (finish) my work I went to sleep.,3. 我完成作業(yè)了就去睡覺了。,had finished,1. After he _ (finish) his work he went out.,had finished,2. The children ran away after they _ (break) the window.,had broken,3. I went to Toms house but he _ (go) out.,had gone,Exercises:,4. Annie told me that his father _ ( go ) to Paris and he _ ( come ) back in a few days.,had gone,would come,5. My friend _ (buy) the car two years ago. He _ (buy) it for two years.,bought,has had,Exercises,