【正文】 p you speak clearly. And yes ,they help you look best. Here are some tips for you to take care of your teeth: 1. Brush your teeth the right way. Brush your teeth at least twice a day – after breakfast and before bedtime. If you can, brush after lunch or after sweet snacks, too. Brush all of your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth. Spend at least three minutes each time you brush. Play a song you like to help pass the time. Get a new toothbrush every three months. When you buy toothbrush, be sure it has soft bristles(鬃毛 ). 2. Learn how to floss(用牙線清潔牙齒 ) your teeth. Flossing is a very important way to keep your teeth healthy. Food may hide between two teeth. Flossing can help get rid of it. You‘ll need to floss your teeth at least once a day. 3. Have good eating habits. You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay(蛀牙 ).Eat lots of fruits and vegetables and drink water instead of soda(蘇打 ). ( )46. How many times at least should we brush our teeth a day?______ A. 1 B. 2 C. 3 D. 4 ( )47. What is the major cause of tooth decay? ______ A. Not brushing teeth B. Not changing toothbrush C. Eating sugar D. Not flossing teeth ( )48. How often should we change our toothbrushes? ______ A. never B. three times a month C. every three months D. every month ( )49. The bristles of the toothbrush must be______ A. hard B. soft C. expensive D. not mentioned ( )50. Which is the right way to take care of teeth? ______ A. Only brush front teeth. B. Not brush teeth before sleeping. C. Spend at most three minutes to brush teeth each time. D. Eat lots of fruits and vegetables and drink water instead of soda. （ D） Wang Fei is a twelveyearold boy. He is lovely and smart. He is always the best in his class. But his classmates wouldn‘t like to play with him because he has AIDS (艾滋病 ) like his parents. Even some teachers always keep away from him. Wang Fei felt sad. One day he returned home with tears. He told his mother he fought with a boy because the boy said something bad about his family. His mother cried, “ What did my son do? Why?” ① Now many people are afraid of AIDS because they know little about it. It is not so dangerous as we think. (B) Safe, and, to eat, it’s, play with them, in fact. They need our love and understanding because they are the same as us. 根據(jù)短文內(nèi)容，完成任務(wù)。 can D. Can。（ 5分） 1. _______ 2. _______ 3. _______ 4. _______ 5. _______ Ⅱ . 聽句子，選擇正確答語。 good C. good。 ( )36. When you need help with your homework, go to the library. You may find magazines, newspapers, and big dictionaries. They can always help you. ( )37. For families with children, an important problem is getting the children away from the television to do their homework. ( )38. Even if you could buy the world, you couldn‘t buy a happy family, good friends, or knowledge. ( )39. The Lost World is an exciting American film. People, especially school students, may like it. ( )40. People might grow plants and vegetables in about 50 years. A. The Importance of Knowledge（ A talk between a famous teacher and some students. ） B. Money isn‘t Everything （ A talk about money with young people. ） C. American Film（ An introduction to new American films. ） D. Today‘s News（ It will tell the important events around the world every day. ） E. Study Tools（ The famous teacher Lin Hui will tell you about some useful study tools. ） F. Farms in the Future（ A program about science in the future. ） G. Popular Songs（ A program in which you can enjoy some very popular songs. ） H. Popular Talks（ A discussion with parents who have trouble with their children. ） （ B） There is a famous English saying ―You are what you eat‖, and it means what you put in your mouth will bee part of you. Many experts (專家 ) use it to tell people it39。（ 10 分） Good Habit Bad Habi