5. One of the n      complained about the noise

from the party.

4. The air was filled  with the  s      of flowers.

3. There are many    animals    in the zoo, such as

monkeys, lions, w      and    tigers.

2. Try not to make n      when you go upstairs.

1. Look, the man is wearing a s    . Maybe  he is a bank clerk.

 What do you do when you feel unhappy? Do you listen to music? Do you talk to a friend?

Maybe next time you feel sad, you should try going outside if it is sunny. Doctors know that how much sunlight we get can change how we feel. Scientists learned this by interviewing people    who live

in different parts of the world. In    the    far    north,    in

Alaska orFinland, for example, the days are very short in the winter. People living in these places say that they often feel unhappy in the winter. In the south, where there are more daylight hours, fewer people say they are unhappy in the winter. The reason  is the amount of    sunlight these people get each day. Sunlight changes  the chemicals in our    bodies,

and these chemicals can change the way we feel. A couple of hours of strong light or light from a special lamp can help our body produces the chemicals that make us feel happy.

Another way to feel happier is to get some exercise. Just like sunlight, regular exercise helps our bodies produces certain chemicals, which make us feel happier. In addition, exercise helps people sleep better and lack of sleep often makes people feel unhappy. Exercise also helps us get rid of (摆脱） stress. When we are angry or upset about something,

exercise    is    a good way to get    those bad feelings out of    us.

(   ) 1 . Why do people in the far north feel unhappy

more often than people in the south?

A. Because    they can’t go outside.

B. Because    they get less sunlight.

C. Because the    weather is too cold.

D. Because the    summer is too short.

 (   ) 2. How can sunlight change the way you

feel?

A. On a sunny day, you can play outside.

B. Sunlight makes you less tired.

C. Sunlight increases your body temperature.

D. Sunlight helps your body make certain chemicals.

(   ) 3. What does Paragraph 2 mainly tell us?

A. It is better to live in the south.

B. Southern people feel much happier.

C. More sunlight can make us happier.

D. Northern people often feel unhappy. 

(   ) 4. What    is    the    best title for the passage?

A. Why Is Sunlight Good for You?

B. How Can Exercise Help You?

C. How to Make Yourself Happy?

      D. When Do You Feel Unhappy?

三、仿照课本P60的（4b)中补全对话完成下面的对话。

1. A ： Even the top students didn’t work out the math

problem.

2. A: The man is running fast.

B ： He might      

3. A: Who’s that boy in blue?

B ： It must be Tom. He likes__

4. A: Sally is ill in bed.

B ： So she can’t     

7. Don’t      . We have plenty of time.

8. I’m not      about her—she can take care

of herself.

4. Could you        help    me to solve the

problem?

5. Students with so much homework to do find it

to do things like volunteering on

weekends.

6. There is enough time. I think it is      for

us to finish the work by noon.

从方框中选择正确的单词填空。

1. It’s very      here.    I    can    hardly hear you.

2. I hate the loud        outside.    It’s    driving me crazy.

3. How can I study for my tests? My little sister is crying      in    the    living    room.