英語時(shí)態(tài)：過去完成時(shí) 概念解析
過去完成時(shí)：用法：在過去的時(shí)間里，兩個(gè)動(dòng)作中，發(fā)生在前的哪個(gè)動(dòng)作要用過去完成時(shí)。
結(jié)構(gòu)：had+過去分詞
After she had finished her homework, she went shopping.
They had sold the car before I asked the price.
The train had left before I arrived at the station.
After/before引導(dǎo)的時(shí)間狀語從句放在句首要在句子后面加逗號(hào)，如果放在主句后則不用加。
1.變疑問句將助動(dòng)詞移到句首
Had she finished her homework?
2.變否定句在助動(dòng)詞后面加not
She hadn’t finished her homework.
3.肯定回答及否定回答
Yes, she had. No, she hadn’t.
4.特殊疑問句：
What had she done?
結(jié)構(gòu)：had+過去分詞
After she had finished her homework, she went shopping.
They had sold the car before I asked the price.
The train had left before I arrived at the station.
After/before引導(dǎo)的時(shí)間狀語從句放在句首要在句子后面加逗號(hào)，如果放在主句后則不用加。
1.變疑問句將助動(dòng)詞移到句首
Had she finished her homework?
2.變否定句在助動(dòng)詞后面加not
She hadn’t finished her homework.
3.肯定回答及否定回答
Yes, she had. No, she hadn’t.
4.特殊疑問句：
What had she done?
- 作者：大學(xué)生新聞網(wǎng) 來源：大學(xué)生新聞網(wǎng)
- 發(fā)布時(shí)間：2018-05-11 瀏覽：
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