特殊用途的句子(虚拟句)

第三章 虚拟

1. 什么是虚拟?

2. 怎么表示虚拟?

3. 虚拟常用于?

1. If 虚拟条件句(虚拟语气)

 (1)虚拟条件句(假设现在)

If 从句主句
假设过去would
假设现在did(were)could/should   + do
假设将来might

If I were you, I would do it now.

练习:

I am not you, so I can’t make the decision.

I don’t know his phone number, so I won’t ring him up.

He isn’t free at the moment, so he won’t go to the cinema.

补充:

If I could rearrange the alphabet, I would put U and I together.

 (2)虚拟条件句(假设过去)

If 从句主句
假设过去had donewould + have done
假设现在could/should
假设将来might

If they had won the match, they would have held a party to celebrate.

练习:

He was not a student, so he couldn’t attend the lecture.

He didn’t tell her the answer. She didn’t understand it.

You were late, so you didn’t hear what he told us.

  (3)虚拟语气(假设将来)

If 从句主句
假设过去would
假设现在could/should
假设将来did(were)
were to do
should do
might + do

If I were to live my life over again, I would have you as my life.

练习:

如果我明天有时间,我就会帮他。(明天不太可能有时间)

If I had time tomorrow(were to have/should have),I would help him.

总结:

If 从句主句
假设过去had donewould + have done
假设现在did(were)could/should + do
假设将来did(were)
were to do
should do
might + do

If 非真实条件句(混合时态的虚拟)

If 从句主句
假设过去
假设现在
假设将来

如果你(过去)嫁给他,你(现在)就会是一个加油站服务员的妻子。

If you had married him, you would be the wife of a gas station attendant.

省略 If 的虚拟条件句

If you had joined us, we would have had more fun.

If I were you, I would think it twice.

2. 名词性从句的虚拟语气:

表示“建议,要求,命令”动词后的宾语从句虚拟从句中用(should)+ do

He suggested that the system should be changed.

suggest, advise, propose, recommend, order, ask, demand, insist, require, request……

练习:


宾语从句的虚拟语气

  1. The engineers proposed they (look) at the design again.
  2. He insisted that she (send) her sister to a dancing school.
  3. The workers demanded they (give) the wages they should get.
  4. He ordered they (start) the attack before dawn.
  5. The teacher always suggests the students (go) over the text before the best.
  6. the professor recommended we (look) for the information in the library.

总结:

表示 “建议,要求,命令” 的名词性从句

He suggested that the system should be changed.

His suggestion was that the system should be changed.

He gave the suggestion that the system should be changed.

This year,it was suggested that the system should be changed.

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