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    They analyzed the ore and found iron in it．

    答案：
    解析：

    他们分析了矿砂,从中发现了铁。


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    Writing team: Obama has a team of people who write his speeches. The writers chat with Obama for hours about what he wants to say. Then listen to recordings of past presidential addresses and seek advice from advisers. Obama usually edits and rewrites the drafts several times.
    Make fun of the guests: Obama starts his speech by gently making fun of his guests. His opening lines attract the audience’s attention while giving them an opportunity to relax and laugh at themselves and each other.
    Make fun of himself: Obama laughs at his past mistakes and is never afraid of showing them to the public.
    Obama delivers speeches to audiences large and small. He can make his audiences laugh or cry. His speeches are always thoughtful, well written and just right for each occasion

    1. 1.

      The third and fourth paragraph mainly talk about _______

      1. A.
        why Obama’s speeches are praised
      2. B.
        how Obama acquired his speaking ability
      3. C.
        what subjects Obama’s speeches are about
      4. D.
        Obama’s success as a writer and a lawyer
    2. 2.

      What do we know about Obama’s writing team according to the passage?

      1. A.
        They always seek advice from the ordinary people
      2. B.
        They analyze the speeches given by former US Presidents
      3. C.
        They usually have to finish writing a speech in a short time
      4. D.
        They try not to mention Obama’s past mistakes in the speeches
    3. 3.

      When delivering a speech, Obama __________

      1. A.
        usually starts with some famous saying
      2. B.
        sometimes turns his speech into a song
      3. C.
        sometimes shares a joke with the audience
      4. D.
        is very strict most of the time
    4. 4.

      What’s the author’s attitude towards Obama’s speeches?

      1. A.
        negative
      2. B.
        indifferent(漠不关心的)
      3. C.
        positive
      4. D.
        doubtful

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