高中英语虚拟的用法说明

时间：2024-10-01 08:13:33 英语我要投稿

高中英语虚拟的用法说明

　　If引导的条件从句

高中英语虚拟的用法说明

　　与现在事实相反

　　从句动词：过去式（be用were）

　　主句动词：should/would/could/might+动词原形

　　If he were here, he would help us.

　　与过去事实相反

　　从句动词：had+过去分词

　　主句动词：should/would/could/might+have+过去分词

　　If I had been free, I would have visited you.

　　与将来事实相反

　　从句动词：过去式/ should+动词原形/ were+不定式

　　主句动词：should/would/could/might+动词原形

　　If it should rain tomorrow, we would not go camping.

　　其它状语从句

　　as if引导的状语从句中动词用过去式或过去完成式

　　They are talking as if they had been friends for years.

　　in order that / so that引导的状语从句中动词用can / could / may / might / would等+动词原形

　　Turn on the light so that we can see it clearly.

　　宾语从句

　　demand, suggest, order, insist后接的从句中动词为should+动词原形

　　He suggested that we not change our mind.

　　wish后的从句中分别用过去式，过去完成式和should/would+动词原形表示与现在，过去和将来情况相反

　　I wish I could be a pop singer.

　　主语从句

　　在It is necessary / important / strange that…, It is suggested / demanded / ordered / requested that…等从句中，谓语动词用should+动词原形

　　It is strange that such a person should be our friends.

　　其它句型中

　　It is time that…句型中动词用过去式或should+动词原形

　　It’s high time that we left.

　　would rather所接的从句中动词用过去式或者过去完成式

　　I would rather you stayed at home now.

　　If only句型中动词常用过去式或者过去完成式，表示强烈的愿望

　　If only our dream had come true!

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