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    精英家教网 > 初中英语 > 题目详情

    A long ladder is used to _______ people _______ a tall building.


    1. A.
      rescue, from
    2. B.
      rescue, of
    3. C.
      rescuing, from
    4. D.
      rescuing, of
    A
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    On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could read the whole “map” of the human body: DNA. DNA is something that everybody has, and it tells the body what to do. DNA is the reason that we look like our mother and father, because we get some of their DNA to make our own.
    People have been trying to understand the human body for a long time. In 1860, Gregor Mendel discovered a special reason why we look the same as other people in our family. It is because of small things named “genes” in our body. In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language.
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    Most people hope that this will help make better medicine and help sick people. Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs. Man would have to meet a lot of trouble if DNA technic wasn’t limited（限制）in use.
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    A．In 1860B．In 1953C．In 1961D．In 2000
    【小题2】What does the underlined word “ genes” mean?
    A. The “map” of DNA.                B. A special language.
    C. Small parts of DNA.                D. DNA
    【小题3】What did the two scientists first discover in 1961 ?
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    C. The language of DNA.              D. A message of DNA.
    【小题4】What can we do if we understand some “ words” of the language inside the body
    A．Make people get new jobs.
    B．Make medicine for illnesses.
    C．Make maps of human.
    D．Make people less attractive.
    【小题5】What do people think about this work’?
    A．It can cause good or bad results.
    B．It can cause only good results.
    C．It can cause good results but won’t work.
    D．It can cause only bad results.

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    Nobody is happy all the time, but some people are really happier than others. Here are some tips for you to be happy.
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    C．the people in New York
    D．traffic accidents in New York
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    NCE Lesson 41.

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    Computers can injure (伤害) you. Most other injuries happen suddenly. For example, if you fall over a bike and break your arms, it happens very     . But computer injuries happen slowly. You probably know how to ride a bike safely. Now learn to use a computer safely.

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    1.A. much quickly      B. faster                 C. slowly              D. quickly

    2.A. Too many       B. Too much            C. Much too             D. Many more

    3.A. so               B. because      C. but                   D. when

    4.A. at last                   B. at most     C. at least         D. less than

    5.A. Sometime  B. Some time         C. Some times     D. Sometimes

    6.A. can            B. may                       C. must           D. should

    7.A. both                B. never      C. all           D. neither

    8.A. follow             B. work          C. copy              D. write   

    9.A. need               B. exercise              C. walk           D. shake

    10.A. Enjoy      B. Watch                C. Protect             D. Keep

     

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