人教版高中英语必修三 Unit 1 Festivals Around the World 情态动词教学设计

人教版高中英语必修三 Unit 1 Festivals Around the World
Grammar 情态动词（Modal verbs）
一、教学设计
【教学目的】
Students will know the usage of the modal verbs.
Students will learn to use the modal verbs.
【教学流程】
Step 1 may 与might的用法
情态动词 用法 例句
may与might 表示允许、许可。否定答语一般要用mustn’t，表示“禁止、阻止”之意。 --- May I watch TV after supper --- Yes, you may. / No, you mustn’t.
在表示请求、允许时, might比 may的语气更委婉一些。在日常口语中，用can征询对方意见更为常见。 ---Might I use your telephone --- Yes, please.--- May / Can I go home now --- Yes, you may / can.
表示可能性的推测，含有“或许”“大概”“可能”之意，用might代替may时，则语气显得更加不肯定。 What he said may be true.She may come tomorrow.He might have some fever.
Step 2 can与could的用法
情态动词 用法 例句
can与could 表示能力 Some of us can use the computer now, but we couldn’t last year.
表示客观的可能性 It will be sunny in the daytime, but it could rain later on this evening.
表示请求和允许 --- Can I go now --- Yes, you can.
表示请求,口语中常用could代替can,使语气更加婉转 Could you wait a few days for the money Could you please show me the way to the station
表示惊异、怀疑、不相信的态度（主要用于否定句、疑问句和惊叹句中） Can this news be true It can’t be the headmaster. He’s gone to Beijing.How can you be so foolish!
Step 3 will与would的用法
情态动词 用法 例句
will与would 用于表示意志或意愿。Will指现在，would指过去 I will never do that again.They said that they would help us.
表示请求、建议等，用would比用 will委婉、客气些 Will you please take a message for me Would you please pass him the book
表示习惯性动作，译为“总是”“惯于”。Will指现在，would指过去 Every evening, she would sit by the window, deep in thought.
表示预料或猜想 It would be about ten when he left home.
用于否定句中，表示“不肯”“不乐意” No matter what I said, he wouldn’t listen to me.
Step 4 shall与should的用法
情态动词 用法 例句
shall 用于第一、第三人称疑问句中，表示说话人征求对方的意见 Shall I do the washing-up When shall my brother be able to leave hospital
用于第二、第三人称的陈述句中，表示说话人给对方的命令、警告、允诺或威胁 You shall go with me. ( 命令)You shall have a new dress for your birthday.（允诺）He shall be punished.（威胁）
should 表示劝告或建议，作“应该”讲 You should keep your promise.
表示推测，作“可能”、“该”讲 The roads should be less crowded today.
Why / how + should结构表示说话人对谋事不能理解、感到惊异等意思，译为“竟会” I don’t know why you should think that I did it.（我真不明白你凭什么认为这件事是我干的。）
Practice:
跟踪练习
用合适的情态动词完成下列句子
1. They have bought a new car. They must have a lot of money.
2. It can’t be Mary. She has fallen ill.
3. He must be reading (read) novels now.
4. They left at 5:30. They should get there now.
5. Shall I open the window for you？
6. He needs to finish (finish) it this evening. The classroom needs cleaning (clean).
7. I asked him if I might/may leave.
8. The road is wet. It must have rained (rain) last night.
9. He may have gone (go) to the clinic.
10. If you will help me with my English, I will be very happy.
11. Tell him that he shall have the book tomorrow.
12.Young people should learn how to use computers.
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Step 5 Summary
The structure of the class is as follows:
Step 6 Homework
二、相关教学资源
教师用书http://www..cn/ge/jszx/jtj/dzkb_1/B2/201107/t20110714_1056212.htm ( http: / / www..cn / ge / jszx / jtj / dzkb_1 / B2 / 201107 / t20110714_1056212.htm )
情态动词(Modal verbs)
may和might的用法
can 和could的用法
will和 would的用法
shall 和should的用法