2019-2020学年北师大版高中英语选修8学案:Unit24 Society-语法篇(教师版)
2019-2020学年北师大版高中英语选修8学案:Unit24 Society-语法篇(教师版)第1页

Unit 24 Society 语法篇

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1、虚拟语气-在书面语中

2、虚拟语气-在口语,非正式用语中

一, 虚拟语气-在书面语中

1. 用"should/ought to+动词原形"的形式。

We should go out foe a walk.

You ought to study hard for your future.

温馨提示:should和ought to都表示"应该",一般可以互换使用,但是should含有"按我的想法应该..."的意思;ought to语气强烈,强调"有责任,义务或按道理应该..."的意思。

2. 有些动词后跟宾语从句时,从句的谓语用"should+动词原形",should可以省略。此类动词可以

用"一,二,三,四法"进行记忆。

①一个"坚持",即insist。

He insisted that we (should) attend the meeting.

②两个"命令",即order和command。

The boss ordered all the workers (should) be there on time.

③三个"建议",即suggest, advise, recommend。

He suggested that we (should) go out for a walk.

④四个"要求",即demand, require, request和desire。

I demanded that he (should) answer me as soon as possible.

注意:当suggest表示"暗示,表明":时,insist表示"坚持说"时,后面的从句不用虚拟语气,用陈述语气。

在"It's desired/ suggested/ required that..."句型中,后面的主语从句的谓语动词用"should+动词