1. Let’s discuss the following questions:

Sports are quite popular all over the world. Different people have different interests and tastes. Some sports

are done indoors, while others are done outdoors. Each has its advantages and disadvantages. Different

sports require different skills and abilities. Can you fill in the following diagram with different sports?　

3.　　　 Deal with Part D 1 on page 97 in Workbook.

Vocabulary extension

2. Focus on Part C and finish it individually first. And then answer the following questions:

What kinds of suggestions does Zhou Ling give to Amy?

Zhou Ling gives specific advice to Amy about the exercises she can do after the operation.

First, if Amy wants to get strong and have some sun with her friends, ________________________________.

If Amy just wants to build her strength up by herself, Zhou Ling advises her to_________________________.

If Amy only wants to have some fun and exercise with some of her friends, she can try ___________________.

1. In Part B, there are 12 different sports listed, each with a picture. Please look at these pictures carefully and describe each sport. You may consult each other or the dictionary whenever you meet new words before consulting me.

You may ask such questions as how many team members are there in this sport? How is the sport played? What are its rules? What instructions does a new player have to pay attention to etc. ? You may talk to each other about your favorite sports and also give the reason why.

3. Now try to answer the following questions:

Do you think looking good is as important as feeling good?

If you do think the two aspects are of equal importance, can you tell me how a person can both look good and feel good?

confident; healthy mentally and physically; exercise regularly; healthy diet

Now I will give you a couple of minutes to talk about the three questions listed under the pictures in pairs or groups.　

Step 3: Sharing information

Now in groups exchange your opinions and everyone is supposed to speak out your idea. Each group will then report your conclusions to the whole class.

　　 ● Word power　 Types of sports

Brainstorming

Let’s discuss the following questions:

Are you interested in sports? What kind of sports are you particularly fond of? Are there any school clubs in your school? Have you ever joined one of them? If not, are you planning to join one? How many different kinds of sports can you name?

Read Part A and summarize the clubs Zhou Ling has discussed in her diary.

Vocabulary learning

2. Let’s deal with the pictures. Let’s invent a situation that fits the upper left picture first and then invent other situations that fit the other pictures. Every one of you, please, participate in the activity.

Aims and requirements

♦Read three e-mails about health and beauty and a magazine article about healthy eating and exercise

♦Listen to a radio commercial

♦Discuss methods of staying healthy, and interview classmates about exercise

♦Write an e-mail recommending a gym

♦Make a booklet about fitness

Procedures ●Welcome to the unit

Step 1: Brainstorming

Boys and girls, today, first, I’d like you to enjoy some pictures. Do you think they are beautiful or handsome?　 Say something about your impressions on the pictures, please. Ok, next, do some question-answer exercises. Let’s discuss the following questions in pairs or groups.　 Use your imagination, express your opinions and participate in the discussion.

Are you particular about your appearance?

Do you think appearance plays an important part in your life?

In your opinion, is a person’s ability judged by his appearance?

Do you usually go to a gym to do sport or exercise?

From your point of view, is doing sport regularly beneficial to your health and to your outlook on life?

After we discussed the above questions. Three other pictures for you to think about and talk about. Do you think the people in the pictures look good and feel good? What do you think is more important, looking good or feeling good?

Step 2: Discussing and practicing

1. Let’s focus on the instructions and the pictures.

5. (12分)某中学生物科技活动兴趣小组，在探究“口腔对淀粉的消化作用”时，进行了如下实验。请分析解答下列问题：

(1)为了证明“唾液对馒头有消化作用”，在2号试管的A处应加入　　　 　，与1号试管形成　　 　。

(2)为了证明“牙齿的咀嚼，舌的搅拌”对馒头有消化作用，应选用　　　两只试管进行对照实验。

(3)实验结果是　 　号试管中的物质遇到碘液不变蓝，原因是　　 　　

　　　　　　　　　　　　。

(4)有的同学提出“除以上三个试管外，还要设置第四个试管，放入馒头块与清水不搅拌，其他处理均相同”。你认为这样设置　　 　(填“有”或“无”)必要。

(5)水浴温度保持在37℃的原因是　　　　　　　　　　　　　　 。

(6)若“加入碘液”步骤放在“保温”前，实验结果可能是　　　　　　　　　　 ；并简要说明理由：　 　　　　　　　　　　　　　。

3.(11分)李大爷去年患上糖尿病，一年来主要依靠肌肉注射胰岛素来维持血糖的稳定。请分析回答下列问题：

(1)李大爷在进行肌肉注射时，肌肉出现不自主地颤栗，而后感觉到疼痛。“颤栗”是一种反射活动，完成该过程的神经结构--反射弧见右图。

①结构a在反射弧中的名称是　　　　　；其功能是　　　　　　　　　　 　　　。

②结构b是由　　　　　　　　　　 及相应的肌肉组成的。

③李大爷的痛觉是在　　　　　　　 产生的，这说明脊髓具有　　　　　 功能；

④　若B处受到损伤，刺激A处，b无反应；刺激c处，b有反应。说明神经d的功能是　　　　　　　　　 。

(2)胰岛素的主要作用是调节糖代谢。右图为李大爷和正常人进食后血糖含量变化的曲线，请回答：

①表示李大爷注射胰岛素之前的血糖变化的曲线是　　　 　 　。

②李大爷依靠肌肉注射胰岛素来维持血糖的稳定，而不能口服胰岛素制剂。请说明其中的理由：　 　　　　　　　　

　　　 　　　　　　　　　　　　　。