高一英语教案 Module 4 unit2 Grammar and usagestuent

---It might have strong wind.　　

3.       May I come in?　　

4.       May you succeed!　　

用法总结：may/might表示1. ____________  2. __________  3. _____________　　

三、must/have to　　

1. You must wear your school uniform.　　

2．You have worked hard all day. You must be tired.　　　

3．My brother was very ill, so I had to call the doctor in the middle of the night.　　

用法总结：must 表示1.__________________ 2. ____________________　　

         Have to 表示______________.　　

当表示“必须”时，must 与 have to

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