2019学年度北师大版选修八Unit24Society Lesson4课时语法精讲 学案设计
[语法·预备役]
用所给动词的适当形式填空,并指明是何种特殊情况的虚拟语气
1.It was ordered that the work ____________ (finish) on time.( )
答案:(should) be finished;主语从句中的虚拟语气
2.I wish you ________ (stay) a little longer.( )
答案:would stay;宾语从句中的虚拟语气
3.The order is that the troops ____________ (march) to the front at once.( )
答案:(should) march;表语从句中的虚拟语气
4.We all agreed to his suggestion that we ____________ (go) Beijing for sightseeing.( )
答案:(should) go to;同位语从句中的虚拟语气
[语法·讲座]
虚拟语气的特殊用法
1.含蓄条件句
(1)有时假设的情况并不以条件从句形式表示出来,而是通过一个介词短语或其他方式表示。常用的词或短语有:without, but for, but that, otherwise, or, if only等。
Without your help (=If we had not had your help), we could not have succeeded.
要是没有你的帮助,我们是不会成功的。
(2)在某些暗含虚拟条件的简单句中,虚拟语气可通过上下文表现出来。谓语动词用should/would do形式或should/would have done虚拟形式。
Any man in his position would have done like that.
任何人处在他的位置都会那么做的。
You should (ought to) have come earlier.
你本应来得早点。
2.错综时间条件句