确保设计开发阶段的能力，这是（） A.设计开发确认 B.设计开发评审 C.设计开发控

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.

表二 某省城镇单位职工工资收入状况

2002年该省国有单位在岗职工人数约为（）。

A．100万

B．150万

C．170万

D．180万

（）等茎枝粗硬而脆，最好刻伤或将弯曲的部位浸入热水中弯曲，然后转入冷水中固定。

A、牡丹、金银木

B、木槿

C、连翘

D、迎春

家庭网关主要有（）工作模式、（）工作模式、（）工作模式。