2. (在日常生活中发现不良习惯。)
T: Is smoking good or bad?
Ss: Bad!
T: Oh, smoking is bad for our health. Why is it bad? Today we will learn a dialog, then we can get the answer from it.
(教师朗读对话1a ，然后在黑板上板书生词，教师要给予解释并领读。)
(板书)
article, cause, cancer, give up
3. (读个别生词，加深印象。)
T: Boys and girls, please read the words loudly.
(等学生熟悉单词后，教师拿出准备好的词组让学生快速造句。)
T: Now, please look at this card, (卡片上写着词组) and make sentences.
T: give up S1.
S1: Don’t give up studying English.
S2: Give up smoking.
(本课应准备的卡片词组为：give up, throw about, be bad for…, put…into, remember to do…, remember doing)
Step 2 Presentation 第二步 呈现(时间:10分钟)
1. (听1a录音，回答问题。)
T: Look at these questions.
(可用幻灯片或小黑板出示。)
(1)Is smoking good or bad for his health?
(2)What may smoking cause?
T: Please listen to the tape, and find out the answers.
(可放两遍录音并核对答案。)
T: Now, please read it again. Then find out the key words in this dialog.
(板书)(板书时不要与上面的词重复,要恰当。)
relax, yellow, cough, say, lung
T: OK. Please practice 1a in pairs, then act it out according to the key words.
(表演时，可用教科书等工作为道具。)
(教师注意观察，看学生的口语表达能力如何，擦去关键词之后，还要达到能说为止。请1-2组学生表演。)
2. (再读1a，请学生找出关键句型、短语。)
T: Well done! Please find out the main points in 1a.
S1: ask sb. to do sth.
S2: give up doing sth.
S3: …
(板书)
ask ab. to do sth.
ask sb. not to do sth.
must do sth.
give up doing sth.
Step 3 Consolidation 第三步 巩固(时间:8分钟)
1. (巩固词组，灵活应用。)
T: Please make new sentences with ask sb. to do sth./must do sth./give up doing sth. (个别提问即可。)
2. (观察1b的挂图，教育学生养成良好的生活习惯。)
T: Look at the picture. (画有小男孩做操的图片) What’s the boy doing, S1?
S 1: He is doing morning exercises.
T: Is it good for his health?
S1: Yes.
T: So you must do morning exercises. (可重说)
(再展示扔香蕉皮的图片。)
T: What’s he doing?
S2: He is throwing litter about.
(throw litter about 前面已训练过，根据学生掌握情况，不可能有障碍。)
T: Is it bad or good?
S2: It’s bad.
T: So you must not throw litter about.
(以同样的方式展示、回答另四幅图。)
T: Practice these six sentences by yourselves.[来源:Z&xx&k.Com]
(说明“must not”句式和“Don’t…”句式可以互相替换。)
附：Don’t stay up late at night. or: You must not stay up late at night.
Don’t read in the sun. or: You must not read in the sun.
…
(教师巡视，帮助指导。)
3. (先师生互动，再学生之间互动完成1c。)
T: OK. Next, look at the picture in 1c. Discuss with your partner and write some school regulations. (可用汉语提示。)
(句子中有生词lawn，可适时讲解,该词只需了解，不需掌握。)
For example:
T: You must not climb trees. S1.
S1: Don’t climb trees!
T: You must not park. S2.
S2: Don’t park!
…
(然后，同学之间操练，结合must, must not/don’t句式)
Step 4 Practice 第四步 练习(时间:10分钟)
1. (练习对话，牢记表达生活习惯的句子或短语。)
T: Now, I want to ask you some questions, S3, please.
S3: Yes?
T: Do you often watch TV for a long time?
S3: Yes, I do.
T: Oh, it’s bad for your eyes. You’d better not watch TV too much.
T: Do you often go to school without breakfast?
S4: No, I don’t.
T: You are right. (老师面带微笑。) Going to school without breakfast is bad for your health. Because breakfast gives us energy for the morning.
(说两遍energy)
(板书)
energy
T: Boys and girls, do you want to keep fit?
Ss: Yes.
T: So you must keep healthy habits first.
(板书)
habits
T: Then let’s learn something about healthy habits. Please look at 2a. Listen to the tape and find out the key words.[来源:学,科,网]
(板书)
without necessary be bad for be good for active
(necessary一词要适当解释，并要求学生掌握。)
2. Listen to 2a again and repeat twice, then read by yourselves.
3. Read 2b and fill in the blanks.
(几分钟之后，核对答案)
附：1. wash, before 2. must not 3. must not 4. park
(也可用多媒体完成本题。)
Step 5 Project 第五步 综合探究活动(时间:10分钟)
1. (让学生写学校行为规范，进一步强化日常用语。)
T: Now, please take out a piece of paper, write down the regulations in our school.
(教师巡回指导，5分钟后找学生读所写内容。)
(附：)Don’t talk loudly in the classroom.
You must not throw litter about.
You must not take pets to school.
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