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    3． A projector 【查看更多】

     

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    Have you seen Avatar? It’s a popular 3D movie, and you may have to wear a special pair of glasses – 3D glasses, to see it. The 3D glasses make the images from the movie look as if they are coming straight at you.
    3D movies are really exciting to watch. More and more 3D movies are coming to theaters. Some say that 3D TV sets will come into our homes in the near future. 3D technology can make TV and movies more exciting. However, people with eye problems may get headaches if they spend too much time watching 3D movies. Why?
    When we look at an object, each eye sees it at a different angle (角度). Our eyes send the two images to our brain, and the brain puts them together. 3D technology uses two film projectors (投影机)。 One projects left-eye-image and the other projects a right-eye-image. 3D glasses allow us to see a different image in each eye. So, when we are watching a 3D movie, our brain can’t put together the images sent to our eyes. The brain needs to work harder at “reading” the images. That makes it easier for people with eye problems to get dizzy (头晕的) or have headaches.
    Dr John Hagan, an eye doctor in Kansas City, said if your eyes can’t focus on the same object at once, you will have trouble watching 3D movies.
    小题1:What is Avatar?
    A．It’s a kind of 3D projector.B．It’s a kind of 3D TV set.
    C．It’s a movie.D．It’s an animal.
    小题2:The 3D glasses can make the images from the movie           。
    A．look more beautiful than usual
    B．look as if they are coming straight at you
    C．look as if they are far away from you
    D．look more strange than usual
    小题3:According to the story, people will have         in their homes in the near future.
    A．3D computers
    B．3D projectors
    C．3D phones
    D．3D TV sets
    小题4:When we look at an object,         .
    A．each eye sees the object at the same angle
    B．each eye sees a different object at the same time
    C．our brain puts the two different pictures together
    D．there will be two film projectors in our eyes
    小题5:If you wear a pair of 3D glasses,          .
    A．you will see different images in both eyes
    B．you will see the same images in both eyes
    C．your brain can’t work at all
    D．the images can be put together easily by your brain

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    Have you seen Avatar？It’s a popular movie this year. It is three-dimensional(3D), so you may have to wear a special pair of glasses to see it. The 3D glasses make the images(图像) from the movie look like they are coming straight at you.
    More and more 3D movies are coming to theaters. 3D TV sets have been produced in Japan now. Three-dimensional technology can make TV and movies more exciting. But people with eye problems may get headaches if they spend too much time watching 3D movies.
    When we look at an object(物体), each eye sees it at a different angle(角度). Our eyes send the two images to our brain(大脑), and the brain puts them together. That’s how we see depth(深度). So when we watch a 3D movie, one film projector(投影机) projects a left eye image and the other projects a right eye image. 3D glasses allow us to see a different image in each eye.
    There are a lot of people walking around with very less serious eye problems. Under normal situations, the brain can adjust to their eyes so they can see things normally.
    But when they are watching a 3D movie, the images projected to their eyes can’t be put together by their brain. So the brain needs to work harder at reading the images. That makes it easier for these people to get headaches.
    Dr John Hagan, an eye doctor in Kansas City, said some people who do not see depth normally cannot see in 3D at all.
    小题1:When people want to watch a three-dimensional movie, they need          .
    A. a ticket                  B. a pair of 3D glasses             C. an earphone
    小题2:Three-dimensional technology uses         film projector(s) to project one movie at the same time.
    A. one                     B. two                         C. three
    小题3:According to the passage, if we look at an object by only one eye, we can’t judge the       excatly.
    A. image                   B. angle                         C. depth
    小题4:Which statement is TRUE according to the passage?
    A. In the near future, people can enjoy 3D movie by watching TV at home.
    B. Whenever you wear a 3D glasses, you can see objects more clearly.
    C. People who have something wrong with their brain can’t read the images of 3D movie.
    小题5:The main idea of this passage is            .
    A. how to use 3D glasses to watch a 3D movie.    
    B. 3D glasses make the movie seem alive
    C. not everybody can enjoy 3D movies.

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    Have you had this experience? You are watching a movie. A man is shooting on the screen. The picture is so real that you think he is shooting at you. Or a car is speeding on the screen and at one point you are afraid that it will hit you. Yes,it’s a three-dimensional(3D) movie.
    　　3D movies use special technology to make pictures seem more real and exciting than two-dimensional ones.They are fun to watch, but do you know how they are made? It is much easier to understand if we do an experiment.
    　　Hold one of your fingers up at arms length and close one eye. Then try closing the other eye. As you switch(切换) between open eyes, you should see your finger “jumping” left and right against the background.
    　　This happens because our two eyes are about 4cm away from each other. The separation(分开) causes each eye to see the world from a different angle. The brain puts these two views together. What you see becomes three-dimensional.
    　　3D movies are made using two video cameras at the same time, which creates two different images. When the movie plays in a cinema, two projectors(放映机) put the two images on the screen. With a pair of 3D glasses, the two images are separated and each image only enters one eye. Your brain puts the two pictures back together, and the pictures on the screen become three-dimensional.

    So far we can only see 3D movies in the cinema with a special screen and projector. But soon, we will be able to watch them in our living rooms.

    51. According to the passage,3D movies _________.

    A. are less real than the common movies
    　B. use special projectors to make pictures
    　C. will take the place of 2D movies soon
    　D. can be only seen in the cinema now

    52. We need _________ when seeing a 3D movie.
    　A. Fingers.　　　　　 　B. 3D glasses.　 　　　C. Cameras. 　　　D. Pictures.

    53. From the passage, we know that 3D technology ________.
    　A. works in similar way of eyes seeing things
    　B. creates two different images separately
    　C. uses special video cameras and screens
    　D. can be very easy to experiment with
    54. In which page of a newspaper can you most probably read this passage?

    A. Fiction　　　　　　 B. Advertisement　　　　 C. News　　　　 D. Science
    55. The passage is mainly about ________.
    　A. how 3D movies develops　　　　　　　　　　　 B. what 3D movies are
    　C. how 3D technology works　　　　　　　　　　　 D. what 3D technology needs

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    　　The famous director(导演)of a bib and expensive film decided to film a beautiful sunset 　　1　　 the sea, so that people could see the man and the woman players in front of 　　2　　 at the end of the film as they said goodbye to each other．So, one day he 　　3　　 a group of men out one evening to film the sunset for him．

    　　The next morning he said to the men, “Have you got the sunset for me?”

    　　“No, sir,” one man answered, “We’re on the 　　4　　 coast(海岸线)here, and the sun sets in the west．We can get you a sunrise, but not a sunset．”

    　　“But I want a sunset!” the director said 　　5　　, “Go to the airport, take the next 　　6　　 to the west coast, and get one．”

    　　But then one of them had an idea, “Why don’t we film a sunrise and then put it 　　7　　 Projector(放映机)backwards?Then it’ll 　　8　　 a sunset．

    　　“That’s a 　　9　　 idea!” the director said．Then he 　　10　　 to the other men and said, “Tomorrow morning I want you to get me a sunrise．”

    　　The group of men went out early the next morning and filmed a bright sunrise．Then at nine o’clock they 　　11　　 it to the director．“Here it is, sir,” they said, and showed it to him．He liked it very much．

    　　They all went into the studio(摄影棚)．“All right,” the director said, “Now our players are going to say goodbye．Run the film backwards through the projector so that we can 　　12　　 the ‘sunset’ behind them．”

    　　The “sunset” began, 　　13　　 after a quarter of a minute, the director suddenly put his face in his hands and shouted to the man to stop．

    　　The birds in the film were flying backwards, and the waves on the sea were 　　14　　 the beach．

    (1)
    [　　]

    A．

    from

    B．

    in

    C．

    over

    D．

    off

    (2)
    [　　]

    A．

    them

    B．

    it

    C．

    the sea

    D．

    the director

    (3)
    [　　]

    A．

    called

    B．

    found

    C．

    told

    D．

    sent

    (4)
    [　　]

    A．

    east

    B．

    west

    C．

    south

    D．

    north

    (5)
    [　　]

    A．

    worriedly

    B．

    angrily

    C．

    friendly

    D．

    sadly

    (6)
    [　　]

    A．

    train

    B．

    taxi

    C．

    ship

    D．

    flight

    (7)
    [　　]

    A．

    onto

    B．

    inside

    C．

    through

    D．

    under

    (8)
    [　　]

    A．

    feel like

    B．

    look like

    C．

    become

    D．

    change

    (9)
    [　　]

    A．

    modern

    B．

    strange

    C．

    common

    D．

    wonderful

    (10)
    [　　]

    A．

    listened

    B．

    hurried

    C．

    turned

    D．

    rushed

    (11)
    [　　]

    A．

    posted

    B．

    took

    C．

    left

    D．

    moved

    (12)
    [　　]

    A．

    see

    B．

    try

    C．

    push

    D．

    feel

    (13)
    [　　]

    A．

    and

    B．

    but

    C．

    then

    D．

    so

    (14)
    [　　]

    A．

    coming onto

    B．

    catching up with

    C．

    going away from

    D．

    getting close to

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    根据短文内容，从每小题A、B、C三个选项中选出一个最佳答案。

    　　This summer, Chinese sports fans will be able to watch the exciting games in 3-D on CCTV．

    　　When you watch 3-D movies or TV, you have to wear a special pair of glasses．The 3-D glasses make the images(影像)from the screen look like they are there in the room with you．

    　　3-D, means having three dimensions(维度)：width, height and depth．3-D technology is based on the way the human brain and eyes work．Because the pupils of a person's eyes are about 6.5cm apart, when we look at something, each eye sees it from a different angle(角度)．Our eyes send the two images to our brain, and the brain puts them together．The small difference between the image from the right eye and the image from the left eye allows us to see depth．

    　　When we view media such as pictures and television in two dimensions, each eye gets the same information．That is because the image has no real depth, and there is only one way of viewing it．

    　　So the goal of 3-D technology is to get a different image into each eye of the viewer．It uses two film projectors(投射器)．One projects a left eye image and the other projects a right eye image．The 3-D glasses allow us to see a different image in each eye．

    　　While watching 3-D films, we feel that we are actually in the same environment as the things we’re watching．However, it also has its disadvantages．The 3-D glasses make the screen look darker．What's more, people with eye problems may get headaches if they spend too much time watching 3-D movies, because their brains need to work harder to “read” the images．

    (1)

    A special pair of ________ is needed when you watch 3-D movies．

    [　　]

    A．

    chopsticks

    B．

    gloves

    C．

    glasses

    (2)

    The underlined word “pupils” in the third paragraph probably means ________ in Chinese．

    [　　]

    A．

    紫色的

    B．

    瞳孔

    C．

    眉毛

    (3)

    When a person watches a 2-D film, each of his eyes gets ________ information．

    [　　]

    A．

    no

    B．

    different

    C．

    the same

    (4)

    People who ________ can't watch 3-D TV too long．

    [　　]

    A．

    have eye problems

    B．

    can't walk

    C．

    have hearing problems

    (5)

    Which of the following is TRUE?

    [　　]

    A．

    3-D technology is based on the way the human brain and eyes work．

    B．

    A 3-D film needs to use one film projector．

    C．

    3-D glasses make the screen look brighter．

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