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    Look at the center circles of Diagram (图) A and Diagram B.  Which of the centre circles looks larger? 
    Take a first look and you probably think that the centre circle in Diagram A is smaller than that in Diagram B. In fact , they are exactly the same size.
    Then look at the picture on the right. What do you see? A vase ? Or two faces? Does the picture change quickly from one to the other again and again? Maybe or maybe not, but you can never see them at the same time. 
    "What's happening? Is something wrong with my eyes?" You may wonder at what you see. Don't worry. Here is how it goes:
    When we look at things, our eyes send messages to our brains and then our brains interpret (解读) the information. However, sometimes our brains interpret the received information in a wrong way. It seems that our eyes are playing a joke on us. This often happens and we call it "Visual illusion" (视觉错误). 
    Movie makers often make use of illusions. They make the objects around actors much smaller or bigger than usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies Jurassic Park and Honey I shrunk the kids just make use of illusions.
    【小题1】The centre circle in Diagram A looks smaller than that in Diagram B. That's because           .
    A. something is wrong with our eyes
    B. the two circles are not the same size
    C. our brains interpret the information in a wrong way
    D. the two pictures change quickly from one to the other
    【小题2】What's the right order according to the passage?
    a. We look at things with our eyes.              b. Our brains interpret the messages.
    c. Our brains tell us what we have seen.      d. Our eyes send messages to our brains.

    A．adbc
    B．cabd
    C．acdb
    D．bcad
    【小题3】Movie makers make use of visual illusions to            .
    A．help the actors look better
    B．make the actors much braver
    C．help the actors become stronger
    D．make the actors seem different in size
    【小题4】In the picture on the right, it seems that Line AB is shorter than Line CD, but in fact Line AB is as long as Line CD. Which paragraph can explain what has happened to our eyes?___________
       
    A.The second one.
    B.The third one.
    C.The fifth one.
    D.The sixth one.
    【小题5】The text is probably taken from            .
    A．an advertisement
    B．a science book
    C．a movie magazine
    D．a story book


    【小题1】C
    【小题2】A
    【小题3】D
    【小题4】C
    【小题5】B

    解析试题分析：这篇文章讲述的是在某种情况下，同样尺寸的东西看起来确实不一样的，人们把这称作视觉错误。
    【小题1】 细节题。根据文章When we look at things, our eyes send messages to our brains and then our brains interpret (解读) the information. However, sometimes our brains interpret the received information in a wrong way.可知，图一中间的圆形看起来比图二中间的圆形要小，是因为我们的大脑错误的解读了这个信息。故选C
    【小题2】细节题。根据文章可知，我们的眼睛先看东西，然后眼睛看到的信息发送给大脑，大脑解读了这些信息之后，告诉我们看到了什么。故选A
    【小题3】细节题。根据文章Movie makers often make use of illusions. They make the objects around actors much smaller or bigger than usual.可知，电影制作商利用错觉效果使演员看起来与平时的身材不同。故选D
    【小题4】细节题。文章第五段给我们解释了为什么同样尺寸的东西看起来不一样的原因。故选C
    【小题5】主旨题。这篇文章主要讲述的是为什么同样大小的东西会看起来不一样。所以，很可能是来自一本科学书。故选B
    考点：科普类说明文
    点评：本文文章不长很好理解，对于此类题目。学生在答题中首先要将文章读懂，在问题中理解作者所提出的问题和文章的那部分对应起来，然后在综合作答，总体来说，只要文章理解了，难度都不大。注意主旨题需要对总起段落进行理解，结合选项利用排除法作答。

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