题目

阅读理解     Teeth are important. Strong and healthy teeth help you chew（咀嚼） foods well. They help you speak clearly. And yes, they help you look best. Here are some tips for you to take care of your teeth: Brush your teeth in a 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. Learn how to floss (用牙线清理) 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. Have good eating habits.     You need to be careful about what you eat and drink. Eating sugar is a major（主要的）cause of tooth decay(蛀牙). Eat lots of fruits and vegetables and drink water instead of soda (苏打). （1） How many times at least should we brush our teeth a day? A . 1 B . 2 C . 3 D . 4 （2） 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 brushing teeth each time. D . Eat lots of fruits and vegetables and drink water instead of soda. （3） What's the main idea of the passage? A . How should we brush our teeth? B . How can we floss our teeth? C . What should we do to take care of our teeth? D . What eating habits should we have to take care of our teeth? 答案： B D C

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