人教版（2019）选择性必修第二册 Unit3 Food and Culture语法精讲课件课件(共17张PPT)

(共17张PPT)
过去完成时
语法精讲
过去完成时的意义和结构
意义：过去完成时表示在过去某一时间或事件之前 完成的动作或状态（过去的过去）。
基本结构：had+过去分词
典例分析
肯定句：主语+had+过去分词
例：Jane had just left when you rang.
否定句：主语+ had + not +过去分词
例：The country had not yet recovered from the effects of the war.
过去完成时的构成：
时间分析
理解“过去的过去” ：
past
now
past in the past
典例分析
先发生的动作用过去完成时，后发生的动作用一般过去时。
例：The film had begun before we got to the cinema.
我到达电影院之前电影已经开始了。
理解“过去的过去” ：
first
second
典例分析
1. by+过去的时间点
例：I had finished reading the novel by nine o’clock last night.
2. by + the end of +过去的时间点
例：We had learned over two thousand English words by the end of last term.
和过去完成时搭配的时间状语：
典例分析
和过去完成时搭配的时间状语：
3. before+过去的时间点
例：They had planted six hundred trees before last Wednesday.
固定表达
1. It was the first time +that(从句中用had done)
例：It was the first time that he had ever spoke to me in such a tune.
2. hardly…when…; no sooner…than…（主句中用had done）
例：He had no sooner left the room than they began to talk about him.
固定句式
After he ___________ (finish) his homework, he went to bed.
The class __________(begin)when I got to school.
He _________(leave) before I got home.
It was the second time that he __________(visit) Paris.
语法填空。
考点追击
had finished
had begun
had left
had visited
过去完成时的被动语态
语法精讲
过去完成时的被动语态
意义：过去完成时的被动语态表示表示在过去某一时间或事件之前 完成的被动的动作（过去的过去）。
基本结构：had + been +过去分词
典例分析
肯定句：主语+ had + been +过去分词
例：The classroom had been cleaned before the teacher came.
否定句：主语+ had + not + been +过去分词
例：The classroom had not been cleaned before the teacher came.
过去完成时的被动语态的构成：
典例分析
先发生的动作用过去完成时，后发生的动作用一般过去时。
例：By the time the tornado ended, more people had been killed.
我到达电影院之前电影已经开始了。
理解“过去的过去的被动” ：
first
second
people和kill之间是被动关系
典例分析
1.表示过去某一时间以前已经完成的被动动作，常与by，before等引导的时间状语连用。
例：By the time he got to the school, the first period had been finished.
How many buildings had been destroyed before the hurricane ended
过去完成时的被动语态常用于以下情况：
典例分析
2. 在told，said, knew, heard, thought等动词后的宾语从句中， 若表示过去某一被动的动作时。
例：They said the production costs had been reduced.
The boy knew that his homework had not been handed in.
过去完成时的被动语态常用于以下情况：
After the assignment _____________(do), he went on to surf the Internet.
The media reported that more than 1000 people ______________ (kill) in the earthquake.
Had the new plan_________________(discuss) before the manager came in？
We hurried to the station only to be told that the train ________________(delay).
语法填空。
考点追击
had been done
had been killed
had been delayed
had been discussed
Bye-bye!