仁爱八年级上册Unit 2 Keeping Healthy Topic2 Section B教案教学反思教学设计

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仁爱版八年级上Unit 2 Keeping Healthy Topic 2  I must ask him to give up smoking.Section B 教学设计

The main activities are1aand2a. 本课重点活动是1a和2a。

Ⅰ. Teaching aims and demands 教学目标

1. Learn some new words:
article, smoke, cancer, litter, energy, necessary, enough
2. Learn some useful sentences:
(1) How terrible!
(2) Don’t walk on the lawn.
(3) It’s necessary for your health.
3. Learn the modals for necessity: must, must not
(1) I must ask him to give up smoking.
(2) You must put litter into the dustbin.
(3) You must not throw litter around.
4. Form good living habits.

Ⅱ. Teaching aids 教具

卡片或多媒体课件/图片/录音机/磁带/小黑板或幻灯片

Ⅲ. Five-finger Teaching Plan 五指教学方案

Step 1  Review 第一步  复习(时间:10分钟)

复习巩固Section A的内容，导入1a的生词。

1. (教师出示教学卡片或多媒体课件，复习学过的良好生活习惯及不良生活习惯。将其顺序打乱，让学生分出好与坏两类。)

T:  Hello, boys and girls. Let’s look at the living habits in the pictures. Choose good habits from them, and say them out in English. First, good habits, please.
Ss: Going to bed early and get up early.
     Doing morning exercises.
     Washing hands before meals.
     Brushing teeth twice a day.
T:  Well done! Then bad ones, please.
Ss: Staying up late at night.
     Going to school withoutbreakfast.
     Playing sports right after meals.
     Keeping fingernails long.
2. (以问候学生的方式，复习前面所学知识。通过师生问答的形式导入其他不良习惯，学习新知识。)
  T:  Nice work. How are you feeling today?
  Ss:      Very well, thanks.
  T:  I’m glad to hear that. I think health is very important. Do you think so, boys and girls?
  Ss:      Yes.
  T:        What is good for your health?
   S1: Washing hands before meals.
S2:       Going to bed early.
   S3:       Doing morning exercises.
  S4: Brushing teeth twice a day.
  S5: Keeping short fingernails.
  T:  What’s bad for your health?
  S6: Staying up late.
   S7: Keeping long fingernails.
  S8: Going to school without breakfast.
   S9: Eating too much candy.
  S10:Working too long.
  …
T:  Well done! Let’s begin the new lesson to learn more about the good and bad living habits.

3. (教师出示此课中所涉及的不良习惯的图片，逐步导入新课。)
T: Well, what about other bad habits? Please look at the pictures. S11, is reading in the sun good or bad?
S11: It’s bad.
T:   That’s right. So we must not read in the sun. S12, is throwing litter around good or bad?
S12: It’s bad.
T:   Right. Don’t throw litter around. You must put it into the dustbin. OK? Is smoking good or bad?
Ss:  It’s bad!
T:   Yes. So we must not smoke.
(板书并要求掌握litter和smoke；理解dustbin。)

litter, dustbin, smoke

Step 2  Presentation 第二步  呈现(时间:12分钟)

通过听、说的训练，学习1a，并强化对1a的理解。
1. (设置听力任务，播放1a录音，完成听力任务。)
T: Oh, smoking is bad for our health. Please listen to1a, and answer the following questions:

(1)Which part of our body is smoking bad for? (2)What may smoking cause?

(核对答案。教师可以帮助学生回答第二个问题。)
T:   Well. What may smoking cause?
Ss: “癌症”。
T:   Right. The article says smoking is bad for our lungs. It may cause cancer. So we must ask people to give up smoking.
(板书并要求掌握。)

article, cancer

2. (跟读1a，注意语音语调，然后写出对话中的关键词及关键短语。)
T: Now, please read1aafter the tape. Pay attention to the pronunciation and intonation. Then find out the key words or phrases in this dialog.
(板书并让全班同学齐读，进一步熟悉关键词及关键短语，为下一步复述对话做准备。)

read in the sun, article about smoking, help him relax, be bad for health, teeth, yellow, cough, be bad for our lungs, cause, cancer, terrible, give up, show … to

3. (让学生再读1a，找出关键句型。)
  T: Read1aagain and find out the main sentence patterns.
(板书，解释并强化。)

ask sb. (not) to do sth. must (not) do sth. give up doing sth.

Step 3  Consolidation 第三步  巩固(时间:6分钟)

复述1a对话，完成1b和1c。对must, must not及don’t的用法进行操练。
1. (根据板书的关键词与关键短语，复述1a对话。)
  T: Close your books, and look at the key words on the blackboard and try to retell the dialog.
(巩固板书的关键句型，灵活应用。)
  T: Well done! Please make new sentences with “ask sb. (not) to do sth./must (not) do sth./give up doing sth.”
(对个别学生提问。)
2. (完成1b，教育学生要养成良好的生活习惯。)
  (让学生看图并连线，找几名学生读出连线后的完整句子。)
T: Very good. Now please look at the pictures in 1b. Read the good or bad habits and match. Then I’ll ask some of you to say your answers.
3. (老师出示1c图片，让学生仔细观察图片，完成1c。)
  T: OK. Next, look at the picture in1c. Discuss with your partner and write some school regulations.
  Example:
  T:        You must not climb trees. S1.
  S1:       Don’t climb trees!
  T:        You must not walk on the lawn. S2.
  S2:       Don’t walk on the lawn!
(板书并要求了解。)

lawn

…
(让学生之间利用must, must not/don’t句式进行对话操练。)

Step 4  Practice 第四步  练习(时间:7分钟)

完成2a和2b。让学生学习更多有关良好生活习惯的表达方式。
1. (通过复述1b中的好习惯，导入2a，出示2a中图片。)
T:  From 1b, we know some good habits, such as doing morning exercises, brushing teeth twice a day, washing hands before meals. What about other healthy habits? Now let’s look at the pictures.
(在图片分析过程中，讲授新单词。)
T:   What’s the boy doing?
Ss: He’s havingbreakfast.
T:   Right. Breakfast gives us energy for the morning.
(板书，并要求学生掌握。)

energy

(用类似的方法教授necessary和enough，并要求学生掌握。)
2. (播放2a录音，先让学生跟读模仿，后独立阅读。)
3. (看图，复述2a。分组进行，评出优胜组，并给予奖励。)
4. (根据所学内容，完成2b。)

Step 5  Project 第五步  综合探究活动(时间:10分钟)

通过综合探究活动，进一步巩固本节课所学的语言点，并运用到实际生活中。帮助学生养成良好的生活习惯。
1. (让学生写班级行为规范，进一步强化日常用语。)
T:  Now, please take out a piece of paper. Write down the regulations in our class.
(教师巡回指导，5分钟后找学生读所写内容。)
Example:
Don’t talk loudly in the classroom.
You must not throw litter around.
You must not talk in class.
You must not eat in the classroom.
Don’t play in the classroom.
T: Very good! If you obey the rules you write, our class will be better.
2. (双人活动。其中一名学生表演一些行为举止和生活习惯，并且用英文表述，另一名学生加以肯定或劝阻并说明理由。准备三分钟，然后请几组学生到讲台前表演。对话中应用到be good for …, be bad for …, You must …, You mustn’t …, Don’t … 等结构。然后评出最佳表演奖，最佳口语奖。发几块糖果给予奖励，并幽默地说：Well done! The candies are the prizes for the winners. Eating too many candies is bad for your teeth, so I can’t give you too many.)
3. Homework:
  根据你所积累的个人卫生习惯的相关知识，结合本节课所学的must, must not/don’t的用法，分别写出至少五条健康的和不健康的生活习惯，并将好的习惯运用到实际生活中。



板书设计：

I must ask him to give up smoking. Section B be good for                          Smoking is bad for his health. be bad for                            It may cause cancer. give up doing sth.          I must ask him to give up smoking.         to do sth.        May I borrow your newspaper and show it to my father? ask sb.                         You mustn’t throw litter around.         not to do sth.         Don’t stay up late at night.           do sth.                    Breakfast gives you energy for the morning. must         not do sth.