普通高中英语学业水平合格性考试第2篇板块1第3讲情态动词学案
展开第三讲 情态动词
[语法规则再现]
情态动词 | 含义 | 示例 |
can could (指过去 时间) | (1)表能力，意为“能，能够，会” (2)表可能(理论或逻辑判断) (3)表请求 (4)表对现在状态或动作进行猜测(否定句或疑问句) | ①He can speak English fluently. ②He can compete in the football match if time permits. ③Can you help me with my Chinese? ④Mary can't be in the classroom now.She is injured at home. |
may might | (1)表允许 (2)表可能 | ①I may go hiking if I finish my homework. ②It may rain soon. |
must (have to 表客观 需要) | (1)表必须(肯定句) (2)表揣测，意为“想必，准是，一定” | ①I must go home now. ②My mother must be exhausted now，because she walked a long time. |
should ought to | (1)表责任或义务，意为“应该” (2)表推测，意为“照说应该，估计” | ①You should do what you are asked to do. ②Children ought to be able to read by the age of 7. |
shall | 在疑问句中征求意见(主语是I，we，he) | Shall we go to the museum after class？ |
will would | (1)表意愿 (2)表请求(第二人称) (3)表过去的习惯 | ①I will do it well for you. ②Would you please open the door? ③He would swim when he was young. |
[典型例题分析]
1．—What do you think of Betty?
—Lovely，though she ________be naughty sometimes.
can [考查情态动词。句意：——你认为贝蒂如何？——很可爱，尽管她有时候会很调皮。can表示“有时候可能会”的意思。]
2．I'm Captain John Blanchard.You ________be Miss Hollis.I am glad to meet you here.
must [考查情态动词。你一定是Hollis女士。根据语境可知此处要用must表示肯定的推测。]
[语法专项对练]
单句语法填空
1．—Can't you stay a little longer?
—It's getting late.I really must go now.My daughter is home alone.
2．It was so noisy that we could not hear ourselves speak.
3．You must be Carol.You haven't changed a bit after all these years.
4．You may feel all the training a waste of time，but I'm a hundred percent sure later you'll be grateful for what you did.
5．You must be careful with the camera.It costs!
6．I would stay at home rather than go shopping.
7．—Shall we have a cup of tea here?
—That's a good idea.
8．—Would you close the window for me?
—Certainly.
9．The man with a cap must be Tom's father.I have seen him before.
10．The traffic is heavy today；I might arrive a bit late，so could you save me a place?
11．You should study harder than before，because the final exam is coming.
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