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!
根據(jù)短文內容，選出一個最佳答案填入題前括號內。
小題1:What has made Mike lose his confidence?
His bad habit.  B. His bad teeth.  C. Not smiling.  D. Eating too much sugar.
小題2: Many people don’t smile because    .
A．they don’t like smilingB．they think they are ugly
C．their teeth are not beautifulD．they can’t open their mouths
小題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.
小題4:If you want to keep healthy, you had better    .
A．not smile oftenB．laugh all the time
C．neiter smile nor laughD．smile and even laugh often
小題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.

小題1:B
小題2:C
小題3:D
小題4:D
小題5:C

小題1:本文的第三行為one of my classmates, Mile, doesn’t have very nice teeth,so thatis why he seldom opens his mouth所表示的含義為邁克很少笑是因為他有壞的牙齒，故本題選.B。
小題2:本文的第二行為many people don’t smile because they think they ugly teeth表示的含義為許多人不笑，因為他們認為他們的牙齒是丑的，故本題選.C。
小題3:本文第一段最后兩句為you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of then.所表示的含義為牙醫(yī)的建議可以有助于改善你的牙齒和保護好你的牙齒，故本題選D。
小題4:本文第二段第二行有一句為If you want to keep healthy,you should not only smile but also laugh. 所表示的含義為如果你想保持健康，你不僅要笑，而且要大笑，故本題選D。
小題5:本文第二段第三行為An Indian doctor called Kataria said that young children should laugh about 300 times a day, 所表示的含義為醫(yī)生建議一個兒童每天應該笑大約三百次，故本題選C。
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