九年級unit12過去完成時分解完整版

1、 復習鞏固復習鞏固:動詞的過去式和過去分詞動詞的過去式和過去分詞 blow blew blown draw drew drawn grow grew grown know knew known throw threw thrown fly flew flown buy bought bought bring brought brought think thought thought teach taught taught catch caught caught begin began begun ring rang rung sing sang sung sink sank sunk swim

2、 swam swum tell told told sell sold sold keep kept kept sweep swept swept sleep slept slept oversleep overslept overslept 過去完成時表示在過去某一時間或動作 之前已經發(fā)生或完成了的動作， 即“過去的過去”。 -|- |-|- 一、過去完成時的概念與結構特點一、過去完成時的概念與結構特點 那時以前那時以前 那時那時 現(xiàn)在現(xiàn)在 構成：構成：主語主語+助動詞助動詞 had + 過去分詞過去分詞 1.They had already had breakfast before the

3、y arrived at the hotel. 2.-Had you known anything about our school before you came here? -Yes, I had. / No, I hadnt. 一般說來，各種時態(tài)都有特定的時間狀語。與過去一般說來，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：完成時連用的時間狀語有： （ 1 ） by + 過去的時間點。過去的時間點。 I had finished reading the novel by nine oclock last night. （ 2 ） by the end of + 過去的時間

4、點。過去的時間點。 We had learned over two thousand English words by the end of last term. （ 3 ） before + 過去的時間點。如：過去的時間點。如： They had planted six hundred trees before last Wednesday. 1.Tom ran back to school because she had left her magazine in the classroom. Tom ran back to school. a.Tom left her magazine i

5、n the classroom. 2.Simon left school late because the football game had started late. a.Simon left school late. b.The football game started late. 3.Daniel arrived late - he had gone to the wrong cinema. a. Daniel arrived late. b. Daniel went to the wrong cinema. 4.Amy had lost her purse and had to g

6、o to the police station. a. Amy lost her purse. b. Amy went to the police station. 過去完成時典型錯誤例析：過去完成時典型錯誤例析： 1.昨晚我們看了電影。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完成時所表示的時間是“過去的過去過去的過去”，只有在，只有在 和過去某時或某動作相比較時才用到它。如果時間只和過去某時或某動作相比較時才用到它。如果時間

7、只 是一個單純的過去時間，則句子只能用一般過去時，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。而不用過去完成時。 2當我到達那兒時，電影已經放了五分鐘了。當我到達那兒時，電影已經放了五分鐘了。 a. The film has been on for five minutes 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。它的動作的起點為動作，要用過去完成時。它的動作的

8、起點為 過去，終點也為過去，即過去，終點也為過去，即“過去的過去過去的過去”。 而現(xiàn)在完成時的動作起點為過去，終點則為而現(xiàn)在完成時的動作起點為過去，終點則為 現(xiàn)在?，F(xiàn)在。 3.到上學期末，他們已學會了五首英語歌曲。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 English songs. by the end of last term 意為意為“到上學期末為到上學期末為

9、止止”，顯然它是，顯然它是“以過去某一時間為終點的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)。故只能用過去完成時態(tài)，不用現(xiàn)在完成時態(tài)。 4.他昨天見到了他昨天見到了ill，他們已有兩年沒見面了。，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. “他們沒見面他們沒見面”是到是到“昨天昨天”為止的（而不是為止的（而不是 到現(xiàn)在為止）

10、，是過去的過去，故后一個句到現(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。子需使用過去完成時態(tài)進行表達。 李梅很高興，因為她期中考試及格了。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)要用過去完成時作之前時，那么

11、這個動作或狀態(tài)要用過去完成時 態(tài)。句中態(tài)。句中pass the mid-term exam 的動作是發(fā)的動作是發(fā) 生在過去動作生在過去動作was very glad 之前的，故之前的，故pass 需用需用had passed表示。表示。 6.他走進屋他走進屋,打開燈打開燈,然后開始寫起來。然后開始寫起來。 a. He had come 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)

12、發(fā)生的動作時，我們常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。短暫性動作，動作之間幾乎沒有時間間斷。 6:308:00 now By the time Jim _, his mom _ got up had cleaned. 6:50 8:00 now6:50 8:00 now By the time Jim _, his sister _ got up had washed. 7:008:00 now By the time Jim _, his grandma _ got

13、 up had eaten. 7:108:00 now By the time Jim _, his dog _ got up had had 7:308:00 now By the time Jim _, his dad _ got uphad gone 用所給動詞的正確形式填空用所給動詞的正確形式填空 1.The poor girl never saw her grandpa because he _ (pass away) before she was born. 2. She_ already_ (clean) the blackboard before I entered the classroom. had passed away cleanedhad 3. He_ (turn off) the lights before he left the classroom. 4. _ your parents _(have) lunch when you arrived at home? had turned off Hadhad 按要求改寫下列句子按要求改寫下列句子(5/1) Simon had finished his homework before he watched TV. 否定句：否定句