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TEM-4 Grammatical Guidance

2018-09-24  点击:[]

       语法考点及语法题应试技巧

一、虚拟语气

(一)、虚拟语气用于简单句中,表示祝愿、诅咒、禁止或命令等

1)用动词原形

Long live the Communist Party of China! 中国共产党万岁!

God bless you! 愿上帝保佑你!

2may用于句首,动词用原形

May you be happy!              May you succeed!

(二)虚拟语气在if条件状语从句中的用法

主句              从句

对现在情况假设/

与现在事实相反    情态v.+ v.原形    v.过去式(bewere)

对过去情况假设/   情态v.+ have done    had done

与过去事实相反    (v.现在完成式)       (v.过去完成式)

对将来情况假设/    情态v.+ v.原形   v.过去式(bewere

将来不太可能实现                  should + v.原形

                                  were to + v.原形

情态动词为:would, should, might, could

 

Eg.  If they had time, they would study Russian, too.

 If I were you, I should go and see the doctor at once.

I could have met her if I had come a few minutes earlier.

If she hadn’t got up late, she wouldn’t have been late for school.

If it rained tomorrow, the sports meet would be put off.

If it should rain tomorrow, the sports meet would be put off.

If it were to rain tomorrow, the sports meet would be put off.

if

在书面语和正式文体中,从句中有were, should, had

可省if,把were, should, had/提到主语之前。

Eg.   If it were not for their support, we would be in a very difficult position.

Were it not for their support, we would be in a very difficult position.

 If I had left a little earlier, I would have caught the train.

 Had I left a little earlier, I would have caught the train.

 If it should rain tomorrow, what would we do?

 Should it rain tomorrow, what would we do?

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