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
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- 2021新版北师大版选择性必修第一册英语Unit Past Perfect Grammar ppt课件 2021新 北师大 选修 英语 Unit ppt 课件 下载 _选择性必修 第一册_北师大版(2019)_英语_高中
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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
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