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阅读理解。

　　My friend, a doctor at a hospital, had finished a physical exam(常规体检) on an eight-year-old boy when the mother told the doctor that his son was always having junk food(零食). The doctor thought how he might get the child to see the light of his poor eating habit, so he asked:“What do you want to be when you grow up?”

　　“I want to be a doctor.” said the boy.

　　“I've got him now,” thought the doctor,“and what would you say to a boy when his mother complained that he was having too much junk food?”

　　At once, the boy replied,“I also ate junk food when I was a child, and look at me now!”

1．What was the boy's problem?

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A．He was often ill.

B．He liked junk food very much.

C．He didn't want to have a physical exam.

D．He didn't want to eat anything.

2．The doctor tried________.

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A．to let the boy understand it was bad to have to much junk food

B．to give the boy more junk food

C．to test if the boy was clever

D．to make the boy eat no junk food

3．What answer did the doctor expect to hear about his second question?

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A．“It's not good for you to have too much junk food.”

B．“You will be stronger if you eat more junk food.”

C．“It doesn't matter to have too much junk food.”

D．“Listen to your mother, and you will have more junk food.”

4．This story mainly tells us that ________.

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A．boys are clever than men.

B．junk food is bad to health.

C．children have their own ways of thinking.

D．boys shouldn't eat too much junk food.