12. Taking a plane is a quick wayto go anywhere. Nowadays,scientists have invented a new kind of plane. That’s a aolar-powerend plane. It’s called HB-SIA. It’s from Switzerland.

11. In western countries, children often put stockings at the end of their beds because Father Christ-man will come to fill the stockings with nice presents.

10.(　 ) How many times should a child laugh every day in doctor Kataria’s opinion?

A. Either 300 or 30 times a day.　 B. Between 7 and 15 times a day.

C. Around 300 times a day.　 D. Only 30 times a day.

C

你知道下面的文字在描述什么吗？请为他们选择一幅合适的插图。

9.(　 ) If you want to keep healthy, you had better　　 .

A. not smile often　 B. laugh all the time　

er smile nor laugh　 D. smile and even laugh often

8.(　 ) What can a dentist do according to the passage?

A. A dentist can tell you how to improve your bad teeth.

B. A dentist can help you to take care of your bad teeth.

C. A dentist can tell you how to brush your teeth.

D. Both A and B.

7.(　 ) Many people don’t smile because　　 .

A. they don’t like smiling　 B. they think they are ugly　

C.their teeth are not beautiful　 D. they can’t open their mouths

6.(　 ) What has made Mike lose his confidence?

A.　　　 His bad habit.　 B. His bad teeth.　 C. Not smiling.　 D. Eating too much sugar.

5.(　 )If you were a child, you could swim when you saw a erd flag.

B

A smile will tell people around you that you are a kind and friendly person. However,many people don’t smile because they think they ugly teeth. For example, one of my classmates, Mile, doesn’t have very nice teeth,so thatis why he seldom opens his mouth.he even says that he has lost cofidence because of his teeth.So it is very important for us to look after our teeth. In fact, a lot of people have this problem.Some people inherit teeth problems from their parents,while others’teeth are damaged because of bad habits,like heavy smoking,eating too much sugar or not brush-ing teeth often.If your teeth are in bad shape, you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of then.

Smiling can help you to feel more confident and make other people think of you as a more friendly person. If you want to keep healthy,you should not only smile but also laugh. An Indian doctor called Kataria said that young children should laugh about 300 times a day, wile adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now!

根据短文内容，选出一个最佳答案填入题前括号内。

4.(　 )You’d better swim when you’re alone.

3.(　 )You can take a bus to go to most of the public beaches.