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Bad teeth，a heavier body．．．a(chǎn)nd now，weaker bones（骨頭）．Recently American scientists have found another bad thing about cola--it's bad for our bones，especially women's bones．

Well，if cola is bad for us，how about energy drinks（功能飲料）? Energy drinks look cool．Their makers say they give you energy and make you better at sports．So，many students drink them before exams to help them stay awake．

But wait．To keep you awake，most energy drinks have a lot of caffeine（咖啡因）．They are like a strong cup of coffee or tea．If you drink a lot of them，Your heart will beat faster．You will feel nervous．You could also have sleeping problems and find it hard to live without them．Amanda Smith is a 16-year-old US junior high school student．She drinks one or more energy drinks every day．She started to do this a year ago before she danced．But now，Smith says，“I drink them whenever I feel weak or before a test．I cannot help drinking them．I find I'm addicted to them．”

The energy you get from the drinks helps for only a short time．You may feel good for an hour or so，but then you'll feel worse than before．

1．The main topic of this passage is ________．

A．how good energy drinks are                      B．ways to make bones strong

C．how energy drinks are made                       D．how harmful energy drinks are

2．We can learn from the first paragraph（第一段）that drinking cola ________．

A．helps lose weight                                     B．does harm to teeth and bones

C．keeps people healthy                                   D．helps kids grow tall

3．Why do people drink energy drinks?

A．Because they are said to make people energetic．

B．Because they are not expensive to buy．

C．Because they may make people's hearts stronger．

D．Because they may make people feel weak．

4．Which of the following statements is NOT true about energy drinks?

A．They can keep people awake．

B．They can make people feel good for some time．

C．They won't cause sleeping problems．

D．They are like a strong cup of coffee or tea．

5．What does the underlined word “addicted” mean in Chinese?

A．喜歡的                B．上癮的                C．感興趣的            D．緊張的