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    The passage mainly tells us . A. how to find the blind spot B. an interesting experiment C. where the blind spot is D. there is blind spot on the eye Passage 2 [答案与解析]这篇科普说明文通过一个简易的小实验.证实了人的眼睛里有一个盲点.当外界物体的影像落在盲点上时.人就看不见该物体了. 【查看更多】

     

    题目列表(包括答案和解析)

    阅读理解。
         It seems to be strange to you there is a blind spot on the eye. Here is an interesting experiment that can
    make something disappear, When one eye is open?
         Make a card about the size of a postcard and write two English letters L and R on it. L on the left and R
    on the right. first, hold the card about 80 cm away and you see both the letters. Then close your right eye
    and look at the letter R only with your left eye. And now, as you move the card slowly towards you, you'll
    see the letter L disappearing. But if you move the card nearer to your lace, the letter will be seen again. Now
    do the same experiment with your left eye closed, you'll see the letter R disappearing.
         Why did the letter disappear? It is because there is a blind spot on the eye. When the image of the letter
    falls on the blind spot, it won't be seen. That is why either of the letters disappear.
    1. The word"disappear" in the first paragraph means _____.
    [     ]
    A. 消散
    B. 丢失
    C. 消失
    D. 遗失
    2. You fail to see the letter "L" in the experiment because _____.
    [     ]
    A. your eyes are poor
    B. you move it close to your eye
    C. its image falls on the blind spot
    D. your left eye is not open
    3. In which order (顺序) should you do the experiment?
    a. hold the card
    b. move the card nearer
    c. close your right eye
    d. write two English letters
    e. look at the letter R
    f. make a card
    [     ]
    A. f-d-a-b-c-e
    B. a-c-f-d-e-b
    C. f-a-d-c-b-e
    D. f-d-a-c-e-b
    4. This passage mainly (主要) tells us _____.
    [     ]
    A. there is a blind spot on the eye
    B. an interesting experiment
    C. where the blind spot is
    D. how to find the blind spot

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    阅读理解

    　　It seems to be strange to you there is a blind spot(盲点)on the eyes．Here is an interesting experiment(实验)that can make something disappear, when one eye is open．

    　　Make a card about the size of a postcard and write two English letters L and R on it, L on the left and R on the right．First, hold the card about 80 cm away and you see both the letters．Then close your right eye and look at the letter R only with your left eye．And now, as you move the card slowly towards you, you’ll find the letter L disappearing．But if you move the card nearer to your face, the letter will be seen again．Now do the same experiment with your left eye closed, you’ll find the letter R disappearing．

    　　Why does the letter disappear? It is because there is a blind spot on the eye．When the image(影像)of the letter falls on the blind spot, it won’t be seen．That is why either of the letters disappears．

    (1)

    The writer of the passage thinks that ________ there is a blind spot on the eye．

    [　　]

    A．

    few people know

    B．

    no one knows

    C．

    most people know

    D．

    all the people know

    (2)

    The word “disappear” in the passage means ________ in Chinese．

    [　　]

    A．

    驱散

    B．

    消散

    C．

    消失

    D．

    遗失

    (3)

    You fail to see the letter L in the experiment because ________．

    [　　]

    A．

    your eyes are poor

    B．

    its image falls on the blind spot

    C．

    you move it close to your eye

    D．

    your left eye is not open

    (4)

    In which order(顺序)should you do the experiment?

    ①Hold the card　　②Move the card nearer　　③Close your right eye　　④Write two English letters　　⑤Look at the letter R　　⑥Make a card

    [　　]

    A．

    ④⑥①②③⑤

    B．

    ①③⑥④⑤②

    C．

    ⑥①④③②⑤

    D．

    ⑥④①③⑤②

    (5)

    The passage mainly(主要)tells us ________．

    [　　]

    A．

    how to find the blind spot

    B．

    an interesting experiment

    C．

    where the blind spot is

    D．

    there is blind spot on the eye

    查看答案和解析>>

    阅读理解。
    　　It seems to be strange to you there is a blind spot on the eyes. Here is an
    interesting experiment that can make something disappear, when one eye is open.
    Make a card about the size of a postcard and write two English letters L and R
    on it, L on the left and R on the right. First, hold the card about 80 cm away and
    you see both the letters. Then close your right eye and look at the letter R only
    with your left eye. And now, as you move the card slowly towards you, you'll
    find the letter L disappearing. But if you move the card nearer to your face, the
    letter will be seen again. Now do the same experiment with your left eye closed,
    you'll find the letter R disappearing.
    　　Why does the letter disappear? It is because there is a blind spot on the eye.
    When the image (影像) of the letter falls on the blind spot, it won’t be seen. That
    is why either of the letters disappears.
    1.The writer of the passage thinks that _____ there is a blind spot on the eye.
    A. few people know
    B. no one knows
    C. most people know
    D. all the people know
    2. "a blind spot" in the passage means _____ in Chinese.
    A.污点
    B. 消散
    C. 盲点
    D. 遗失
    3. You fail to see the letter L in the experiment because _____.
    A. your eyes are poor
    B. its image falls on the blind spot
    C. you move it close to your eye
    D. your left eye is not open
    4. In which order (顺序) should you do the experiment?
    ①Hold the card ②Move the card nearer ③Close your right eye
    ④Write two English letters ⑤Look at the letter R ⑥Make a card
    A. ④⑥①②③⑤
    B. ①③⑥④⑤②
    C. ⑥①④③②⑤
    D. ⑥④①③⑤②
    5. The passage mainly (主要) tells us _____.
    A. how to find the blind spot    
    B. an interesting experiment
    C. where the blind spot is      
    D. there is blind spot on the eye

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