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Look at the centre circles of Diagram (圖)A and Diagram B. Which of the centre circles looks larger? 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（解讀）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(視覺錯誤)”.
Movie makers often make use of visual 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 visual illusions.
【小題1】Why does the centre circle in Diagram A look smaller than that in Diagram B?

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
【小題2】What do movie makers make use of visual illusions for ?
A．To help the actors look better
B．To make the actors much braver
C．To help the actors become stronger
D．To make the actors seem different in size
【小題3】In the picture below, 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 fourth one.                D. The sixth one.
【小題4】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．a d b cB．c a b dC．a c d bD．b c a d
【小題5】Where may this passage be from?
A．A letter B．An English newspaper
C．A science bookD．An advertisement


【小題1】C
【小題2】D
【小題3】C
【小題4】A
【小題5】C

解析試題分析：這篇短文主要給我們講述了視覺錯誤的問題，并談到了這一現象的應用。
【小題1】根據倒數第二段However, sometimes our brains interpret the received information in a wrong way.描述，可知選C。
【小題2】根據最后一段This makes us believe that the actors are much larger or smaller than they usually are. 描述，可知選D。
【小題3】通過閱讀短文，可知這一問題主要是視覺錯誤造成的，第四段主要解釋了什么是視覺錯誤，故選C。
【小題4】根據短文第四段When we look at things, our eyes send messages to our brains and then our brains interpret（解讀）the information. 描述，可知正確順序是A。
【小題5】這篇短文主要給我們講述了視覺錯誤的問題，并談到了這一現象的應用。故可能來自一本科學類書籍，故選C，一本科學書。
考點：關于視覺錯誤的說明文閱讀
點評：本文淺顯易懂，層次分明，學生很容易把握文章中心內容。答題中注意帶著問題閱讀短文，一般就能順利找出答題依據。對于不能直接找到根據的問題注意聯系上下文，根據短文中心總結出正確答案。

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