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情态动词may 和might -第七章助动词与情态动词(45)

45.情态动词may 和might

一. may可以用来表示

1.(可不)可以:
may i ask you a question?
我能问你一个问题吗?

you may go now.
你现在可以走了。

2.可能,或许(表推测):
she may not be at home now.
她可能不在家。

he may have gone abroad.
他可能出国了。

i may be late for a few minutes.
我可能会迟到几分钟。

may也可以用在表示目的等的状语从句中(a)或用来表示祝愿(b):
1) write to her so that she may know our address.
给她写封信址让她知道我们的地址。

2)may you have a long and happy life!
祝你幸福长寿!

二.might可用作may的过去式表示:

1.可以:
he a sked whether he might use our phone.
他问可否用我们的电话。

he thought he might have a try.
他想他可以试一试。

2.可能,或许:
i thought mother might like the idea.
我想妈可能会赞成这个想法。

she was afraid he might not agree.
她怕他或许不赞成。

might也可用来代替may,使口气显得更委婉或不肯定,表示:

1)可以:
might i have a cup of coffee?
我可否要一杯咖啡。

you might sit by my side.
你可以坐我旁边。

2)可能,或许:
the paper says that it might rain.
报纸说可能要下雨。

she might have forgotten about it.
她或许忘了这件事。

此外还可用在某些从句中(a)或条件句中(b):
a. he died so that others might live.
他死了使别人能活下来。

b.if i were her,i might agree.
如果我是她我可能会同意。