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    　　Galileo left earth on October 18, 1989．In 1995, it became the first man-made satellite of Jupiter(木星)．

    　　Galileo released its 339 kg probe(an exploring machine)in July 1995 and it went into the atmosphere of Jupiter in December．Travelling at 47 km per second, Galileo’s cone-shaped(锥形的)probe became a man-made meteor(大气现象)burning across alien cloud．Within two minutes the drag caused by Jupiter’s atmosphere slowed the probe to a mere 1600 km per hour．

    　　The following are some information about Galileo and Jupiter．

    　　Galileo’s Mission：

    　　Take pictures of Jupiter and its moons

    　　Weigh planet and its moons

    　　Check temperatures, chemical make-up, magnetic strength, protons(质子), heavy ions(离子), electromagnetic waves and dust particles．

    　　Galileo Facts：

    　　Weight：2380 kg

    　　Dimensions：4.5 m high, 10.9 m long

    　　Thermal nuclear power：570 watts

    　Jupiter Facts：

    　　Fifth planet from the sun(after Mercury, Venus, Earth, Mars), 700 million km from earth at the moment．

    　　Largest planet in solar system：

    　　Diameter：142 000 km(Earth：12 750 km)

    　　Spins on axis(day length)：10 hours(Earth：24 hours)

    　　Moons：16

    　　Made of swirling(漩涡), hot gases, no rocky surface

    　　Gaseous red spot：40 000 km across

    (1)

    Galileo could be best be described as a ________．

    [　　]

    A．

    rocket

    B．

    spaceship

    C．

    space probe

    D．

    meteor

    (2)

    It’s most likely the space probe released by Galileo ________．

    [　　]

    A．

    landed on Jupiter

    B．

    returned to Earth

    C．

    was struck by a meteor

    D．

    burnt up in Jupiter’s atmosphere

    (3)

    One of Galileo’s task mission was to ________．

    [　　]

    A．

    check Jupiter for alien life

    B．

    get the information about how heavy is Jupiter

    C．

    go into Jupiter’s atmosphere

    D．

    return to Earth with scientific information

    (4)

    The length of a day on Jupiter is ________．

    [　　]

    A．

    shorter than that on the earth

    B．

    longer that that on the earth

    C．

    as long as on the earth

    D．

    as short as on the earth

    (5)

    According to the passage we can infer(推断)________．

    [　　]

    A．

    there are nine planets in the solar system

    B．

    Galileo finished its missions

    C．

    Jupiter is farther from the earth than the sun

    D．

    there’s probably no life on Jupiter

    答案：1．B;2．B;3．D;4．A;5．D;
    解析：

    (1)

    Galileo是在空间执行任务的人造卫星。

    (2)

    下文提到了木星的一些数据，这些都是空间探测器带回来的。

    (3)

    Galileo共有三个使命，测出木星的重量便是其中之一(weigh Jupiter)。

    (4)

    木星一天有10个小时，地球一天有24个小时。

    (5)

    木星是由漩涡、热气等组成的(made of swirling，hot gases，no rockey surface)，这种环境不利于生命的活动，因此可以推断上面可能没有生命。


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