练习册

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    The huge mirror is A. something in a story. B. already made. C. just an idea. D. to be made soon. E Beijing leading schools say “No to students’ mobile phones. Three reasons make some leading schools in Beijing discourage middle school students from bringing mobile phones to campus. First, it is dangerous for children to bring valuable mobile phones along to school for it is possible for them to be lost during physical exercise and other activities and may cause unnecessary trouble to teachers. Second, mobile phones are bad for students’ studies. Many teachers complainthat some students have phone calls in class, disturbingthemselves and others. Third, mobile phones serve as a hotbed for students’ vanity. A new Grade One senior high school student in a leading school asked his parents to buy a 4000-yuan colored-screen mobile phone, which turned out to be his fifth one ever since he entered the middle school. Most presidents and teachers in leading schools of Beijing thought that IC telephones on campus have made it very easy for students to get in touch with others, so middle school students should not bring mobile phones to school at present. 【查看更多】

     

    题目列表(包括答案和解析)

    Scientists would like to place a huge mirror in space above the earth. It might be sixty miles wide. It would be used to catch the rays (光线) of the sun. It would direct the sun’s rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.
    Why do they want to do this? The sun’s rays could be helpful in many ways. They could light up cities by night. The warm rays could stop frosts (霜冻) which might come at night and hurt fruit crops. They could melt (融化) dangerous icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.
    【小题1】The huge mirror would ______.

    A．stand 60 miles in height (高度) B．be 60 miles from side to side
    C．cover 60 miles of the earth D．be 60 miles above the earth
    【小题2】The mirror would be used to ______.
    A．reflect (反射) sunlightB．absorb (吸收) sunlight
    C．see what the earth looks like D．see how clouds move
    【小题3】The strong light from the mirror could possibly ______.
    A．hurt fruit cropsB．set fire to cities
    C．bring longer daytimeD．shine through walls
    【小题4】The huge mirror is ______.
    A．something in a story B．already made
    C．just an ideaD．to be made soon

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    Scientists would like to place a huge mirror in space above the earth. It might be sixty miles wide. It would be used to catch the rays (光线) of the sun. It would direct the sun’s rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.

    Why do they want to do this? The sun’s rays could be helpful in many ways. They could light up cities by night. The warm rays could stop frosts (霜冻) which might come at night and hurt fruit crops. They could melt (融化) dangerous icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.

    1.The huge mirror would ______.

    A．stand 60 miles in height (高度)             B．be 60 miles from side to side

    C．cover 60 miles of the earth                D．be 60 miles above the earth

    2.The mirror would be used to ______.

    A．reflect (反射) sunlight                    B．absorb (吸收) sunlight

    C．see what the earth looks like               D．see how clouds move

    3.The strong light from the mirror could possibly ______.

    A．hurt fruit crops                         B．set fire to cities

    C．bring longer daytime                     D．shine through walls

    4.The huge mirror is ______.

    A．something in a story                     B．already made

    C．just an idea                            D．to be made soon

     

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    阅读下列短文，从所给的四个选项中，选出最佳答案

    　Scientists would like to place a huge mirror in space above the earth．　　 It might be sixty miles wide．　　 It would be used to catch the rays(光线) of the sun．　　 It would direct the sun's rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror．

    　Why do they want to do this? The sun's rays could be helpful in many ways．　　 They could light up cities by night．　　 The warm rays could stop frosts(霜冻) which might come at night and hurt fruit crops．　　 They could melt(融化) dangerous icebergs in the ocean．　　 Perhaps they could change cloud movements and bring rain where it is needed．

    (1) The huge mirror would ______．　　　

    [　　]

    A．stand 60 miles in height(高度)

    B．be 60 miles from side to side

    C．cover 60 miles of the earth

    D．be 60 miles above the earth

    (2) The mirror would be used to ______．　　　

    [　　]

    A．reflect(反射) sunlight

    B．absorb(吸收) sunlight

    C．see what the earth looks like

    D．see how clouds move

    (3) The strong light from the mirror could possibly ______．　　　

    [　　]

    A．hurt fruit crops

    B．set fire to cities

    C．bring longer daytime

    D．shine through walls

    (4)  The huge mirror is ______．　　　

    [　　]

    A．something in a story

    B．already made

    C．just an idea

    D．to be made soon

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