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2024年4月1日发(作者：)

1条件状语从句中虚拟语气的用法。(与事实相符或可能实现的愿望，则用陈述句语气) 见

课本p109.

引导条件状语从句的连词有：if, unless, when, as long as, on condition that (倘若)，

provided (that) (倘若)，providing (that) (倘若)等。

If引导的条件状语可以省略if，此时需要部分倒装。适用情况：谓语动词是were或者含有

辅助动词should/had. 此时需把were，should/had放在句首。

Were you in my position, what would you do?

Had he taken his doctor’s advice, he would not have worked so hard.

Should it rain tomorrow, the meeting would be put off.

注意：句型if it not were for: 要不是…..

If it were not for your help, we would be in serious trouble. 要不是你的帮忙，我们会

遇到大麻烦。

Were it not for Tom, we would not have been so successful.

2 虚拟语气在状语从句中的用法

1) even though/if后跟(方式状语)从句(可用虚拟语气)。用法和if引导的条件句一样。

Even if I had known her address, I could not have had time to write her.

2). As if/though 后跟(方式状语)从句(用虚拟语气).

①动词过去式(were): 表示与主句动作同时发生

②could(would)+动词原形：表示动作在主句动作之后发生

③had+过去分词： 表示动作发生在主句动作之前

She talks about it again and again as if she would never end. 她反复谈论那件事，好

像永远谈不完的样子。(could(would)+动词原形)

He talks/talked as if he knew New York very well. (动词过去式)

He sat/sits/is sitting there quietly as if nothing had happened. (had+过去分词)

He walks as if his leg had hurt.

He talks as though he had been there.

在个别动词尤其是look, seem, taste, smell, appear, sound, feel后，as if引导的从句可

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本文标签： 状语动作动词条件

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