Walk to school every day? That will work, but not if you like sleep in. If you like bad smells and crowding(拥挤), the bus might be your best Choice. But why not a bicycle? A bicycle will get you there faster than your feet and will save your money.
This is why you see more bicycles than any other kind of transportation in China, about 500 million of them. That’s close to one for every two people in the whole country. But if you survey your class at school, you may will find a higher rate(比率).
Bicycles became popular because they are fun for people and at the same time help develop a strong body. No vehicle is better than a bicycle for enjoying an autumn weekend outside the city with parents or friends. You can travel on small, quiet paths. You also can park your bicycle beside the path wherever you want to stop to admire the beauty.
Cycling every day helps people build with city healthier hearts and stronger muscles(肌肉). Scientists say a 30-minute ride every day can help you lose weight.
Today, bicycles also are popular with city planners. They see bicycles as a good way to reduce heavy traffic. Unlike buses, bicycles produce no exhaust(尾气) and don’t burn energy. Many countries are encouraging more daily use of bicycles.
【小题1】What’s the main subject of the passage?

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 that is why he seldom opens his mouth. he even says that he has lost confidence 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 Katarina 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。

1. What has made Mike lose his confidence?

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

2. 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

3. 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.

4. If you want to keep healthy, you had better     .

A. not smile often                          B. laugh all the time 

C. neiter smile nor laugh                   D. smile and even laugh often

5. 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.

Passage 3
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 have ugly teeth. For example, one of my classmates, Mike, doesn’t have very nice teeth, so that is why he seldom opens his mouth. He even says that he has lost confidence 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 brushing 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 them.
Smiling can help you to feel more confidence and make 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 30 times a day, while adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now.
【小题1】What has made Mike lose his confidence?

Dear Lucy,
Thank you for your letter and your invitation. I really hope I can  26   with you. But I have to say  27   to you. I’m too  28   next week!
On Monday, I’d like to see the doctor. There is   29  wrong（有问题的）with my  30 . I can’t see people or things a little far   31  me clearly（清楚地）. Maybe I should   32  a pair of glasses. On Tuesday, I have football training. You know, I’m in the football team of our school. We’ll have an English test on Friday morning,   33  on Wednesday and Thursday I have to stay at home and study hard. On Friday afternoon, I’m going to a  34. My favorite star Michael Jackson will come. I like his music very much.
Have a good time! And please call me after you come  35  from the camping.
Yours,
Linda