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    精英家教网 > 初中英语 > 题目详情

    　　No one knows why we sleep, but it’s certain that we need to．People who are prevented from sleeping begin to suffer obvious effects after a few days－they think less clearly, and they fall asleep during the working hours．

    　　There are no rules about sleep．Generally speaking, grown-ups sleep about 7 and a half hours each night and probably more than 60 percent get between seven and eight hours．But perhaps eight percent are quite happy with 5 hours or less, and four percent or so find that they want ten hours or more．If you feel all right, you’re probably getting enough sleep．The important thing is not to worry how much other people get－their needs may be different．Exercise doesn’t seem to increase the need for sleep－office workers, for example, sleep for about as long as people doing physically active work．

    　　Children sleep more than grown-ups－perhaps 14 to 18 hours soon after birth, going down to grown-up levels by early teenagers．Sleep patterns also tend to be different in the old people, who may sleep less at night than they did when younger, find sleep getting more broken, and often make it a rule to sleep during the daytime．

    (1)

    Some people can’t think clearly because ________．

    [　　]

    A．

    they have bad memory

    B．

    they feel sleepy during the working hours

    C．

    they don’t have enough sleep

    D．

    they are certain to be kept from going to bed

    (2)

    Whether you have got enough sleep is judged by ________．

    [　　]

    A．

    how many hours you have slept

    B．

    how many hours you need to sleep

    C．

    if you do exercise and physical work

    D．

    if you feel fresh and energetic

    (3)

    According to the passage, a boy of 14 years old sleeps ________．

    [　　]

    A．

    as long hours as a grown-up

    B．

    much longer hours than a grown-up

    C．

    for 14 hours each night

    D．

    for less than 8 hours each night

    (4)

    Which of the following is true?

    [　　]

    A．

    All grown-ups must have at least eight-hour sleep．

    B．

    Most of grown-ups sleep for seven or eight hours．

    C．

    Quite a few people need only 5 hours or less for them to sleep．

    D．

    No grown-ups sleep more than ten hours

    (5)

    Which is not mentioned in the passage?

    [　　]

    A．

    why people should sleep

    B．

    the length of sleep

    C．

    how to sleep well

    D．

    Children’s sleep

    答案：1．C;2．B;3．D;4．B;5．C;
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    根据材料内容选择最佳答案，并将其标号填入题前括号内。

    (1)

    When did the story probably happen?

    [　　]

    A．

    On Christmas Day．

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    Before Christmas Day．

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    [　　]

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    [　　]

    A．

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    [　　]

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    [　　]

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    [　　]

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    　　Stamp collecting is perhaps the most popular hobby in the world. 1 people have been collecting stamps from different countries, for different reasons and in different ways.

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    [　　]

    A．Many
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    [　　]

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    [　　]

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    [　　]

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    [　　]

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    [　　]

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    11．

    [　　]

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    [　　]

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    [　　]

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    [　　]

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    [　　]

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