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.

1. 1.

   What has made Mike lose his confidence?

   1. A.
      His bad habit
   2. B.
      His bad teeth
   3. C.
      Not smiling
   4. D.
      Eating too much sugar
2. 2.

   Many people don’t smile because ______

   1. A.
      they don’t like smiling
   2. B.
      they think they are ugly
   3. C.
      their teeth are not beautiful
   4. D.
      they can’t open their mouths
3. 3.

   What can a dentist do according to the passage?

   1. A.
      A dentist can tell you how to improve your bad teeth.
   2. B.
      A dentist can help you to take care of your bad teeth.
   3. C.
      A dentist can tell you how to brush your teeth.
   4. D.
      Both A and B
4. 4.

   If you want to keep healthy, you had better _____

   1. A.
      not smile often
   2. B.
      laugh all the time
   3. C.
      neither smile nor laugh
   4. D.
      smile and even laugh often
5. 5.

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

   1. A.
      Either 20 or 30 times a day
   2. B.
      Between 7 and 15 times a day
   3. C.
      Around 30 times a day
   4. D.
      Only 30 times a day

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(丑陋的) 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(自信) 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’s teeth are damaged(破坏) 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(牙医) and ask for help. He can help improve your teeth and tell you how to take care of them.

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 children should laugh about 300 times a day, while adults should laugh between 7 and 15 times a day. So please smile and laugh now!

49. What has made Mike lose his confidence?

　 A. His bad habit.　　　　　　　 B. His bad teeth.　　

C. Not smiling. D. Eating too much sugar.

50. 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 mouth

51. 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.

52. How many times shoud a child laugh every day in Doctor Kataria’s opinion?

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

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

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。
【小题1】What has made Mike lose his confidence?
His bad habit.  B. His bad teeth.  C. Not smiling.  D. Eating too much sugar.
【小题2】 Many people don’t smile because    .