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—Yes, we must./No, we don’t have to./No, we needn’t.
3. Asking for and giving advice.
4. Talk about how to prevent the flu:
(1)We should exercise often to build us up.
(2)We should wash our hands and change our clothes often.
(3)We had better not go to crowded places.
Ⅱ. Teaching aids 教具
图片/录音机/磁带/小黑板
Ⅲ. Five-finger Teaching Plan 五指教学方案
Step 1 Review 第一步 复习(时间:8分钟)
师生讨论如何保持健康，引出如何预防流感，导入新课。
1. (师生就健康话题进行讨论。注意应用情态动词should, shouldn’t, must, mustn’t，导入本课的目标语言don’t have to, needn’t。)
T:Boys and girls, we know keeping the school and classrooms clean is good for our health. Then do you know how to keep healthy? You’d better say it with should/shouldn’t, must/ mustn’t, had better (not).
S1: We should have healthy eating habits.
S2: We mustn’t throw litter around.
S3: We mustn’t drink sour milk.
T:Must we go to see a doctor when we have a headache?
S4:Yes, we must.
(帮助学生用否定形式回答。)
T:No, we don’t have to. / we needn’t. We can have a good rest.
(板书并讲解。)
Must we go to …?
Yes, we must./No, we don’t have to. / we needn’t.S5:We shouldn’t exercise on an empty stomach.
S6:We should have enough sleep.
S7:We should brush teeth twice a day.
S8:We shouldn’t read in the sun.
T:What else should we do to keep healthy? Please make some sentences with had better.
S9:You’d better go to bed before nine o’clock in the evening.
S10:We had better not play sports right after meals.
…