课堂探究
1.What do you think would happen if tomorrow there was suddenly no rice to eat?
如果明天突然没有米可吃了,你认为会发生什么事呢?
剖析:1)do you think属于插入语,置于特殊疑问词之后。句子的主干应是What would happen?如:
Who do you think will come to help us?
你认为谁将来帮助我们?
2)该句中用了虚拟语气,表示与将来事实相反的假设。从句用一般过去时,主句中用"would/could/might/should+动词原形"。
要注意在使用虚拟语气时谓语动词的形式:
从句谓语 主句谓语 现在情况 一般过去时(be要用were) would/could/might/should do 将来情况 一般过去时should do were to do would/could/might/should do 过去情况 过去完成时,即had done would/could/might/should have done 注意:如果if条件句中含有were,should,had,则可以将if省略,把were,should,had提到主语的前面。如:
Were I you,I wouldn't make him angry.
如果我是你,我不会让他生气。
Should he come,I would let you know.
如果他来,我会让你知道。
Had they said sorry to me,I would have forgiven them.
如果他们向我道过歉,我就原谅他们了。
单项填空
1) I should not have laughed if I ______ you were serious.
A.thought B.would think
C.had thought D.have thought
2)-John went to the hospital alone.
-If he ______ me about it,I would have gone with him.
A.should tell B.tells C.told D.had told
完成句子
3)____________(你认为他们什么时候) will be back?
4)____________(如果我是你),I shouldn't do that.