過去完成時講解.ppt

1、past perfect tense 過去完成時,知 識回 顧,1.They arrived at the station at ten yesterday.,一般過去時表示在過去時間里發(fā)生的動作或存在的狀態(tài)。,強調(diào)過去某一特定的時間。,2.I have learned 1000 English words so far.,現(xiàn)在完成時表示的動作發(fā)生在 過去，但側(cè)重對現(xiàn)在產(chǎn)生的結(jié)果或造成的影響，與現(xiàn)在有關(guān)。 其結(jié)構(gòu)為：“助動詞 have（has）+過去分詞”,They had arrived at the station by ten yesterday.,1.They arrived at t

2、he station at ten yesterday.,2.I have learned 1000 English words so far.,I had learned 1000 English words till then.,構(gòu)成：助動詞had + 過去分詞（V.pp),用法：,1. 過去完成時動詞表示過去某一時間或某一動作之前完成的動作或狀態(tài)。在強調(diào)過去某一動作發(fā)生在另一動作之前時。,過去完成時：,在強調(diào)過去某一個動作發(fā)生在另一個動作前常常用過去完成時態(tài)。,1.他說他以前見過你。,He said that he _ (see) you before.,had seen,2. 到六點鐘

3、為止他們已經(jīng)工作八小時了。,By six oclock they _(work) for eight hours.,had worked,過去完成時表示在過去某一時間或動作之 前已經(jīng)發(fā)生或完成了的動作， 即“過去的過去（ past-in-the-past ）”。 -|- |-|-,那時以前,那時,現(xiàn)在,2. 過去完成時可以表示過去某一時刻之前發(fā)生的動作或呈現(xiàn)的狀態(tài)，這一動作一直持續(xù) 到過去某一時刻。,By six oclock they _ (work)for eight hours.,When I came to GZ , he _(be) there for a long time.,用法

4、：,1. 到了六點鐘為止，他們已經(jīng)工作了八小時了。,2. 我到廣州時，他在那里很長時間了。,had worked,had been,3.到上個月中旬我們在北京住了有五年時間了。,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Lin Tao已經(jīng)走了。,He said that Lin Tao _(leave),3. 當我進來時，他已做完了作業(yè)。,When

5、I came in he _(finish) his homework.,過去完成時與 by then(截止到那時); by 9 oclock(直到九點鐘) by the end of (在結(jié)束/末之前); by the time(在時之前); up till then (直到那時); up until last night(直到昨晚）等連用，表示過去的過去。,had written,had left,had finished,3. 過去完成時和 already, just, ever, yet 等連用表示過去的過去。,用法：,例如：1. 他告訴我說他們隊已經(jīng)贏了。,He told me th

6、at 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：,過去完成時與when, before, as soon as, till/ until 等引導時間狀語的從句連用，強調(diào)動作發(fā)生的時間前后。,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. 在他們到達之前電影已經(jīng)開始了。,Before they arr

7、ived 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,構(gòu)成：主語+助動詞 had + 過去分詞（ v-ed）,1.They had already had breakfast before they arrived at the hotel.,2.By nine oclock yesterday evening he hadnt got home.,3.-Had y

8、ou known anything about our school before you came here? -Yes, I had. / No, I hadnt.,4.What had your sister been before she became an actress?,二、過去完成時的判斷依據(jù),1.由“過去的過去”來判定。,過去完成時表示“過去的過去”，是指過去某一動作之前已經(jīng)發(fā)生或完成的動作，即動作有先后關(guān)系，動作在前的用過去完成時，在后的用一般過去時。這種用法常出現(xiàn)在：,在時間、條件、原因、方式等狀語從句中，主、從句的動作發(fā)生有先后關(guān)系，動作在前的，要用過去完成時，動作在后

9、的要用一般過去時。如：,When I got to the station, the train had already left.,After he had finished his homework, he went to bed.,（ 1 ）狀語從句中,（ 2 ）賓語從句中,當賓語從句的主句為一般過去時，且從句的動作先于主句的動作時，從句要用過去完成時。在told, said, knew, heard, thought等動詞后的賓語從句。如：,She said that she had seen the film before.,They explained what had happe

10、ned.,2. 由時間狀語來判定,一般說來，各種時態(tài)都有特定的時間狀語。與過去完成時連用的時間狀語有：,（ 1 ） by + 過去的時間點。如：,I had finished reading the novel by nine oclock last night.,（ 2 ） by the end of + 過去的時間點。如：,We had learned over two thousand English words by the end of last term.,（ 3 ） before + 過去的時間點。如：,They had planted six hundred trees bef

11、ore last Wednesday.,3. 根據(jù)上、下文來判定。,I met Wang Tao in the street yesterday. We hadnt seen each other since he went to Beijing.,He felt rather tired because he had worked for the whole night.,Work out the rule: If we want to talk about two past actions in a sentence, the past perfect tense is used for

12、the (earlier, later) action.,earlier,1.Millie ran back to school because she had left her magazine in the classroom. What happened first? Millie ran back to school. Millie left her magazine in the classroom.,2.Simon left school late because the football game had started late. What happened first? a.

13、Simon left school late. b.The football game started late.,3.Daniel arrived out of breath - he had gone to the wrong cinema. What happened first? a. Daniel arrived out of breath. b. Daniel went to the wrong cinema.,4.Amy had lost her purse and had to go to the police station. What happened first? a.

14、Amy lost her purse. b. Amy went to the police station.,過去完成時典型錯誤例析：,1.昨晚我們看了電影。 a. We had seen the film yesterday evening. b. We saw the film yesterday evening.,過去完成時所表示的時間是“過去的過去”，只有在和過去某時或某動作相比較時才用到它。如果時間只是一個單純的過去時間，則句子只能用一般過去時，而不用過去完成時。,2當我到達那兒時，電影已經(jīng)放了五分鐘了。 a. The film has been on for five minute

15、s when I got there. b. The film had been on for five minutes when I got there.,在過去某一時間或動作之前發(fā)生或完成了的動作，要用過去完成時。它的動作的起點為過去，終點也為過去，即“過去的過去”。而現(xiàn)在完成時的動作起點為過去，終點則為現(xiàn)在。,3.到上學期末，他們已學會了五首英語歌曲。 a. By the end of last term, they have learned five English songs. b. By the end of last term, they had learned five Eng

16、lish songs.,by the end of last term 意為“到上學期末為止”，顯然它是“以過去某一時間為終點的”，故只能用過去完成時態(tài)，不用現(xiàn)在完成時態(tài)。,4.他昨天見到了ill，他們已有兩年沒見面了。 a. He saw Bill yesterday. They havent met each other for two years. b. He saw Bill yesterday. They hadnt met each other for two years.,“他們沒見面”是到“昨天”為止的（而不是到現(xiàn)在為止），是過去的過去，故后一個句子需使用過去完成時態(tài)進行表達。

17、,李梅很高興，因為她期中考試及格了。 a. Li Mei was very glad, because she passed the mid-term exam. b. Li Mei was very glad, because she had passed the mid-term exam.,當我們表示某動作或存在的狀態(tài)發(fā)生于過去某動作之前時，那么這個動作或狀態(tài)要用過去完成時態(tài)。句中pass the mid-term exam 的動作是發(fā)生在過去動作was very glad 之前的，故pass 需用had passed表示。,6.他走進屋,打開燈,然后開始寫起來。 a. He had c

18、ome into the room, turned on the light and began to write. b. He came into the room, turned on the light and began to write.,當按順序陳述過去連續(xù)發(fā)生的動作時，我們常常使用一般過去時態(tài)。注意：以上幾個動作為短暫性動作，動作之間幾乎沒有時間間斷。,用所給動詞的正確形式填空(10/1),1.The poor girl never saw her grandpa because he _ (pass away) before she was born.,2. She_ alre

19、ady_ (clean) the blackboard before I entered the classroom.,had passed away,cleaned,had,句型轉(zhuǎn)換 (10/1) He had stood up before he cleaned the window. _ he had stood up, he cleaned the window. His father went to Beijing. He arrived home. (用before合并句子) His father_ _ _ Beijing before he _ home.,After,had g

20、one to,arrived,按要求改寫下列句子(5/1) Simon had finished his homework before he watched TV. 否定句： 疑問句： 肯定回答： 否定回答：,Simon hadnt finished his homework before he watched TV.,Had Simon finished his homework before he watched TV?,Yes, he had.,No, he hadnt.,選擇題(10/1) Millie_ some Chinese before she came to China. A. learned B. has learned C. lear