I was doing my homework _______ my father was reading newspapers.

A. how B. while C. if

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--- ________ , please?

---I think it’s about 5:30.

A. What time is it B. What the time C. When it is

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There __________ a “helping hands” meeting tomorrow afternoon.

A. will be going B. will going to be

C. is going to be D. will go to be

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—Do you have _______ to say today?

—No, nothing.

A. something important

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—Must I go to see a doctor when we have a cold?

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Spending two or three hours playing outdoors each day can reduce the chance of becoming short-sighted(近視的), a research shows. It challenges the belief(信念) that short-sightedness is caused by computer use, watching TV or reading in weak light.

The Australian government researchers believe that the sunlight is good for people’s eyes. They compared the vision(視力) and habits of 100 seven-year-old children in Singapore and Australia. In all, 30% of the Singaporean children were short-sighted—this rate(比率) was ten times higher than Australian children.

Both groups spend a similar amount(數(shù)量) of time reading, watching television and playing computer games. However the Singaporean children spent an average (平均) of only half an hour a day outdoors — 90 minutes less than the Australian children.

Professor Ian Morgan, from the Australian Research Council’s vision Centre, said, “Humans are naturally long-sighted, but when people begin to go to school and spend little or no time outdoors, the number of short-sighted people gets larger. We’re also seeing more and more short-sighted children in cities all around the world and the main reason may be that city children spend less time outdoors

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1.What causes short-sightedness according to the passage?

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B. Playing computer games.

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C. 60 minutes. D. 30 minutes.

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B. Why natural daylight has a special chemical.

C. Why daylight prevents people from becoming short-sighted.

D. Why daylight is hundreds of times brighter than indoor light.

4.Which of the following is TRUE according to the passage?

A. When people begin to go to school they will become long-sighted.

B. Singaporean children have more knowledge of protecting their eyesight.

C. If people spend less time outdoors they will certainly become short-sighted.

D. Playing outside 2 or 3 hours a day can reduce the risk of getting short-sighted.

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--Is Lucy knocking at the door?

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