2021新版北师大版选择性必修第一册英语Unit 1 Past Perfect Grammarppt课件.pptx

1、选择性必修一 Unit 1 Relationships (8) 高一年级 英语 Past Perfect Grammar Lead-in Read the sentences from our textbook and find out which action happened before the other. 1. Before Mr. Jenkins taught me, science had been a subject full of strange words to me. had been taught now Lead-in Read the sentences from

2、our textbook and find out which action happened before the other. 2. I knew I had chosen a job with a lot of stress. had chosen knew now Lead-in Read more sentences and find out which action happened before the other. 3. However, more than 1,600 years later, some scientists found the lost towns that

3、 had been buried under the ashes. had been buried found now Lead-in Read more sentences and find out which action happened before the other. 4. Before the eruption occurred, it had been a booming Roman city. had been occurred now Lead-in Read more sentences and find out which action happened before

4、the other. 5. The bodies of people who had died in Pompeii left impressions in the ash. had died left now Summarize 1. Structure：主语+had+v-ed 2. Usage: Usually, the past perfect and the past simple in one sentence show the order of past events. past perfect past simple now Usage Rule 1. We use the Pa

5、st Perfect to talk about an event in the past which happened before the other past event. Rule 1 1) 用by或before引导的短语或从句 By the end of last term, we had learnt 2,000 words. By the time he was twenty, he had opened a shop of his own. Tom had already had breakfast before 7 oclock this morning. Rule 1 1)

6、 用by或before引导的短语或从句 by the end of + 表过去的时间 by the time + 表过去时间的从句 by + 表过去的时间 before + 表过去的时间(从句) Rule 1 2) 2) 用用when引导引导的状语从句的状语从句 The bus had left when I got to the station. I had hardly arrived home when the telephone rang. No sooner had he left the office than it began to rain. Rule 1 2) 2) 用用wh

7、en引导的状语从句引导的状语从句 scarcely . when . 一一就就 hardly . when . no sooner . than . Rule 1 2) 2) 用用when引导引导的状语从句的状语从句 我们刚到，他就让我们离开我们刚到，他就让我们离开。 We had scarcely arrived when he asked us to leave. 太阳刚升起，我们就起床了。 The sun had hardly appeared when we got up. Rule 1 3) 用于主句为过去时态的宾语从句中 sb. said / knew / told / asked

8、. He said he had never been to America. The teacher asked who had broken the cup. Rule 1 We had known each other since he came here. It was five years since they had become good friends. It was the third time that he had made the same mistake. Rule 1 4) 用于句型“主语 + had + p.p. + since +从句 / 时间状语” “It +

9、 was / had been + 一段时间 + since从句”和 “This / That / It + was the first / second.time + that从句” Rule 2 2. 表愿望、打算一类的词，如hope, expect, mean, intend, want, think, suppose等, 其过去完成时表示未曾实现的愿望或意图。 I had meant to help you, but I was busy at the moment. Rule 3 3. 用于虚拟语气中对过去的虚拟 If he had caught the early bus, he

10、would not have been late for class. Usage 1. It shows an event happening before a past event. 2. It expresses hopes. 3. It is used in subjunctive mood. (past tense) Practice 1. The police found that the house and a lot of things . A. has broken into; has been stolen B. had broken into; had been stol

11、en C. has been broken into; were stolen D. had been broken into; were stolen Practice 2. Tom didnt go to hear the singer because he him. A. heard B. would hear C. has heard D. had heard Practice 3. When we got to his home, we learned he for almost an hour. A. went B. had gone C. had been away D. has

12、 gone Practice 4. Class by the time I there, so I took a seat in the back. A. has begun; get B. had begun; got C. began; got D. begins; get Practice 5. Helen her key in the office so she had to wait until her husband home. A. has left; comes B. left; had come C. had left, came D. had left, would com

13、e Practice 6. The pen which I I is on my desk, right under my nose. A. think; lost B. thought; had lost C. think; had lost D. thought; have lost Practice 7. How long each other before they married? For about a year. A. had they known; got B. have they known; get C. do they know; are going to get D.

14、did they know; were going to get Practice Read the passage and fill in the blanks with proper forms. My friend, Harrison, (live) in the Mediterranean for many years before he (return) to England. He had often dreamed of retiring in England and (plan) to settle down in the country. had lived returned

15、 planned Practice He had no sooner returned than he (buy) a fine house and went to live there Soon he (begin) to complain about the weather, for even though it was still summer, it (rain) continually and it was often bitterly cold. began bought had been raining Practice After so many years of sunshine, Harrison got a shock. He acted as if he (never live) in England before. In the end, it was more than he could bear. He sold the house and left the country. had never lived Thank you!