A 100-pound child should carry a backpack of more than 20 pounds.

试卷相关题目

• 1Backpacks with wide, padded straps and a belt can help to avoid problems of sprains and strains.

  A.Right

  B.Wrong

  C.Not mentioned

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• 270 percent of UK physicians have treated children with sprains and strains.

  A.Right

  B.Wrong

  C.Not mentioned

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• 3About six thousand American kids were injured by carrying backpacks last year.

  A.Right

  B.Wrong

  C.Not mentioned

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• 4His heart gave a sudden <u>leap</u> when he saw her.

  A.jump

  B.hope

  C.silence

  D.life

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• 5The AIDs <u>convention</u> will be held in Glasgow.

  A.party

  B.celebration

  C.union

  D.conference

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• 6Children should put all the books in their lockers.

  A.Right

  B.Wrong

  C.Not mentioned

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• 7Roller bags tend to be heavier than ordinary backpacks.

  A.Right

  B.Wrong

  C.Not mentioned

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• 8A 10-15 minutes’exercise will help you bear a heavier backpack.

  A.Right

  B.Wrong

  C.Not mentioned

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• 9Kad Kim’s study showed that

  A.people learn English and Korean in different ways .

  B.children and adults use the different parts of the brain to learn a second language.

  C.it is not possible for an adult to speak a second language fluently.

  D.people’s brain will not change when they learn a second language

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• 10How did kim and Hirsch study the brains of two groups of bilingual people、

  A.They interviewed them in English and Korean.

  B.They asked them to speak the same language.

  C.They used an MRI scanner to observe their brain.

  D.They asked them to talk about what they had done the day befor

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