Question

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.

1.When people want to watch a three-dimensional movie, they need .

A. a ticket B. a pair of 3D glasses C. an earphone

2.Three-dimensional technology uses film projector(s) to project one movie at the same time.

A. one B. two C. three

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

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.

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.

 

Answer 1

1.B

2.B

3.C

4.A

5.C

【解析】

试题分析：本文介绍了3D电影运用的3D技术，3D技术现在越来越流行，它是在我们平时观看的图像基础上又加入了深度，但是不是所有人都能观看3D电影的。

1.根据原文It is three-dimensional(3D), so you may have to wear a special pair of glasses to see it.看3D电影必须要带3D眼镜。故选 B。

2.根据原文one film projector(投影机) projects a left eye image and the other projects a right eye image. 可知3D技术使用两个投影机同时投影一个电影。故选B。

3.根据原文Our eyes send the two images to our brain(大脑), and the brain puts them together. That’s how we see depth.我们的两只眼睛发送两个图像给我们的大脑，大脑把它们放在一起，就是我们看到的深度。可知只用一只眼睛看，只能看到图像，看不出深度。故选 C。

4.通过阅读可知，在不久的将来，人们在家里就能观看3D电视。故选A。

5.根据文章最后一句话some people who do not see depth normally cannot see in 3D at all.

可知不是所有的人都能观看3D电影。故选C。

考点：科普类短文阅读。