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    　　Scientists have long had it in their mind to make a robot lizard(蜥蜴)．They began with finding out why a lizard can hang on a wall．They noticed the lizard's toes were unique：They have suckers(吸盘), which enable it to hang on walls．They, therefore, made a robot with suckers on its hands and feet．

    　　The robot could hang on the wall but fell off when crawling．So, they went on researching．6 years ago, scientists discovered that suckers only were not enough．It is the bristles(刚毛)on each foot that adds friction(摩擦)and static adsorption(静电吸附力)that makes a lizard move on the smooth wall easily without falling down．

    　　Then scientists made great efforts to fix thick bristles to the robot's hands and feet．However, the effect was not satisfactory．The robot still couldn't attach itself firmly to the wall．

    　　Scientists got puzzled：How on earth can the lizard crawl on an extremely smooth wall or even on a ceiling without dropping off?

    　　An accidental finding inspired them：One day a scientist happened to see an animal attack a lizard and bite off its tail．The lizard broke away from the animal's teeth and threw itself on a wall to escape, only to fall off heavily on the ground．The scientist wondered：Is it the tail that plays an important role in its travelling on the wall? He caught some lizards for an experiment．The result proved his assumption：A tailless lizard has no trouble walking on an ordinary wall but can't on a smooth one．A further study showed the lizard's tail can prevent it falling over backward and, what's more, that the tail acts as an additional leg while one of the lizard's legs leaves the wall, which is always the case while it is walking on the wall．

    　　Thus, Tailbot, a super tailed robot, is born．

    (1)

    What part(s)would be a must if scientists just wanted a robot which can hang on the wall?

    [　　]

    A．

    Suckers．

    B．

    Suckers and bristles．

    C．

    Suckers, bristles and a tail．

    D．

    Hands, feet, bristles and a tail．

    (2)

    The bristles function as something ________．

    [　　]

    A．

    to protect the lizard's toes from injury

    B．

    to produce friction and static adsorption

    C．

    to prevent a lizard falling over backward

    D．

    to help a lizard move about without falling

    (3)

    The biggest importance of a lizard's tail lies in ________．

    [　　]

    A．

    helping support the body

    B．

    serving as another leg

    C．

    sticking to the wall

    D．

    stopping slipping

    (4)

    What does the underlined part in the fifth paragraph refer to?

    [　　]

    A．

    A lizard often falls over backward while it travels on the wall．

    B．

    A lizard often has three legs on the wall while walking on the wall．

    C．

    A lizard's tail will replace one of its legs while it moves on the wall．

    D．

    A lizard's tail often stops it fall over backward while moving on the wall．

    答案：1．A;2．B;3．B;4．C;
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    阅读理解

    　　Thirteen vehicles lined up last March to race across the Mojave Desert, seeking a million in prize money．To win, they had to finish the 142-mile race in less than 10 hours．Teams and watchers knew there might be no winner at all, because these vehicles were missing a key part－drivers．

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    [　　]

    A．

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    阅读理解

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    [　　]

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    阅读理解

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    阅读理解

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    [　　]

    A．

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    [　　]

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    [　　]

    A．

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    [　　]

    A．

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    [　　]

    A．

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    becomes aware of very serious issues about his society

    C．

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    阅读理解

    阅读下列短文，从A、B、C、D四个选项中选出最佳选项。

    　　Superman, Spider-Man, Batman and Iron Man…．There is no shortage of superheroes．You find them in comic books, on the TV and the big screen．

    　　In a survey of fans by the sci-fi and fantasy website, SFX．co．uk, Batman, 70 years old this year, was voted Britain's favorite superhero．

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    (1)

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    [　　]

    A．

    How Bruce Wayne develops into a superhero．

    B．

    How to overcome childhood fears．

    C．

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    D．

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    Bruce Wayne decides to dress like a bat because of ________．

    [　　]

    A．

    his curiosity about bats

    B．

    his childhood fear of bats

    C．

    his parents' sudden death

    D．

    his unusual travel experiences

    (3)

    Why does Wayne live like a playboy?

    [　　]

    A．

    He prefers the lifestyle of a playboy．

    B．

    He doesn't know how to run a company．

    C．

    He loves freedom more than anything else．

    D．

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    [　　]

    A．

    Batman is a born superhero

    B．

    He has special powers

    C．

    The turning point of his life is due to his parents' sudden death

    D．

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