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You must take some medicine.
You must brush your teeth twice a day.
You mustn’t eat too much candy.
给对方提建议时，可以用should / had better ， shouldn’t / had better not
给对方提建议时，可用情态动词 must“必须，一定” mustn’t“禁止，不可以”，后接动词原形
Kangkang looks tired.
What caused it?
/’ta??(r)d疲倦的
cause /k?:z/引起
Can you guess?
He went to bed very late.
Listen to 1a and find out the answers.
1a
录音1a-P35
1. What’s wrong with Kangkang?
2. What did Kangkang do last night?
3. Is staying up late good for your health?
A. has a fever B. has a backache C. has a headache
watch a basketball game
B. watch a soccer game
C. watch a baseball game
A. Yes, it is. B. No, it isn’t.
熬夜
Watch the flash and fill in the blanks.
1b
Reason
watch ______________
go to bed ________
Result
look ______