高中英语语法复习情态动词讲解与练习学案（含答案）

could 1、表“能力”

Can you lift this heavy box

I couldn’t understand what he said at all. 2、表“许可”

You can use a different material instead.

He said I could borrow his bike. 3、“怀疑”

No, no, it can’t be true. What on earth can this mean

We thought the story could not be true. How could you be so careless 4、can与be able to 区别

could代替 can，表示语气更为婉转。 Eg. Could I use your bike Yes, I can can (能够)=be able to(仅表能力时)，但be able to 表示一番努力后， 才能做得到，且有更多的时态。 2.may与 might用法 对比点

may

might 1．表“询问”

May I … (=Can I … )

Might I … (=Could I… ) (但比用may 更客气) 2.表“允许”

You may take the boy there.

He told me he might come. (might 与told相呼应) 3．表“可能”“或许”

She may nor like this place.

I’m afraid he might not like this play. 注：

1. May I… 的答语。 2. may可表示期望或祝愿 May you succeed ! 3. may (might) 用于目的状语从句。

肯定：Yes, you may. 否定：No, you mustn’t 不行 （语气强硬） No, you may not 或No, you’d better not. The emperor gave them some

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