The London Olympic Games are coming soon. 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 people and the things on the screen look like they are in the room with you.
3-D, means having three *dimensions: *width, height and *depth. 3-D technology is based on the way the human brain and eye work. Because the *pupils of a person’s eyes are about 6.5cm apart, when we look at something, each eye sees it from different *angle. Our eyes send the two pictures to our brain, and the brain puts them together. The small difference between the picture from the right eye and the picture from the left eye make us see depth.
While watching 2-D films, we don’t have to wear the special glasses. We see the pictures in two dimensions, each eye get the same information. This is because there is only one way of watching it.
So the aim of 3-D technology is to get a different picture into each eye of the person. It uses two film *projectors. One *projects a left eye picture and the other projects a right eye picture. When we are in the cinema, we can see different pictures in each eye at the same time with the help of the 3-D glasses.
While watching 3-D films, we feel that we are actually in the same environment as the things we are watching. However, some people are against watching 3-D films. One of the reasons is the 3-D glasses makes the screen of the film or TV look darker. It is bad for eyes. 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 pictures.  
【小题1】Paragraph 3 mainly tells us __________.

A.how we see things in 3-D B.how we watch the Olympic Games
C.how 3-D films are made D.where we watch 3-D films or TV
【小题2】When we watch a 2-D film, each of our eyes get ________ information.
A.noB.differentC.darkD.the same
【小题3】Which is the following is right according to the passage?
A.We don’t have to wear 3-D glasses if we watch games in 3-D on TV.
B.The 3-D technology is based on the way the human ear and eye work.
C.All the people can have fun watching 3-D movies or TV for a long time.
D.3-D glasses make us see different pictures in each eye at the same time.
【小题4】Why are some people against watching 3-D films? Because ____________.
A.they make them more excited or sadder
B.3-D glasses make the screen look darker
C.3-D films make all people get headaches
D.they dislike watching the Olympic Games

Television has a huge influence on our lives. It is one of the most important ways of getting information. People spend part of their spare time watching television, and much of what they learn comes from it.
What we see on TV—movies, news shows, sports shows, advertisements and so on have increased our knowledge and have changed the way we learn about the world today. However, not everything on TV is true.
Most of the viewers are children. Television sometimes is like a baby-sitter. It spends more time with children than parents do. But it keeps them in the living room away from healthy outdoor activities. They spend less time playing soccer or walking in the park or playing games in the yard.
Of course, there are some programs on TV that are good for children. But there are also some shows which are bad. Children should not watch unhealthy shows. Maybe we can’t change what is on TV, but we can choose what we watch. Do you agree?
【小题1】Why is television sometimes like a baby-sitter?

A.Because television can take care of children.
B.Because children spend more time watching TV than staying with their parents.
C.Because television spends time looking after children.
D.Because television keeps children from going out.
【小题2】Which is not one of the good influences television has on our lives?
A.It stops children from attending healthy outdoor activities.
B.It provides a lot of information.
C.It changes people’s way of learning.
D.It increases people’s knowledge.
【小题3】We can learn from the passage that _________.
A.parents shouldn’t let children watch TV
B.We should believe everything on TV.
C.we can choose TV programmes
D.parents shouldn’t watch TV
【小题4】 What’s the writer’s attitude(态度) towards television?
A.消极的B.积极的C.中立的D.愤怒的
【小题5】The passage is mainly about ________.
A.children spend too much time watching TV
B.people spend their time on TV for information
C.TV programmes attract children
D.the great influence TV has on our lives

Animals, including insects, don’t have a ‘language’ like ours. They do not ‘talk’ to each other in words and sentences. But if we watch them, we can see that they do have their ways of communicating (交流) with each other.

Can you see the rabbit’s tail? When rabbits see this white tail moving up and down, they run away. They know that they are in danger. The rabbit has told them something without making a sound. It has given them a signal.

Many other animals use this kind of ‘language’. When a cobra(眼镜蛇)is angry, it raises its head and makes itself look powerful(有力的). This warns other animals. When a bee(蜜蜂)has found food, it goes back to its home. It cannot ‘tell’ the other bees where the food is by speaking to them, but it does a little dance. This tells the bees where the food is.

Some animals ‘say’ things by making sounds. A dog barks, for example, when a stranger comes near. A cat purrs when it is pleased. Some birds make several different sounds, each with its own meaning. Sometimes we human beings speak in the same way. We make sounds like “Oh” or “Ah” when we are frightened or pleased or when we drop something on our toes.

1.Which one is TRUE according to the passage?

A.Animals have languages like human beings.

B.Bees communicate with each other by dancing.

C.Animals can use words.                                                 D.Animals are brave.

2.A rabbit uses its tail to ___________.

A.warn other rabbits when they are in danger   B.tell other rabbits where food is

C.make itself look powerful                 D.help it to run fast

3.When a cobra is angry, it __________.

A.makes a loud noise                      B.raises its head

C.moves up and down                     D.does a little dance

4.Several different sounds can be made by a __________.

A.rabbit            B.bee              C.bird              D.fish

5.From the passage, we know that ________ use words and sentences to express ideas and thoughts.

A.all living things      B.all animals         C.some birds        D.human beings

 

The London Olympic Games are coming soon. 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 people and the things on the screen look like they are in the room with you.

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

While watching 2-D films, we don’t have to wear the special glasses. We see the pictures in two dimensions, each eye get the same information. This is because there is only one way of watching it.

So the aim of 3-D technology is to get a different picture into each eye of the person. It uses two film *projectors. One *projects a left eye picture and the other projects a right eye picture. When we are in the cinema, we can see different pictures in each eye at the same time with the help of the 3-D glasses.

While watching 3-D films, we feel that we are actually in the same environment as the things we are watching. However, some people are against watching 3-D films. One of the reasons is the 3-D glasses makes the screen of the film or TV look darker. It is bad for eyes. 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 pictures.  

1.Paragraph 3 mainly tells us __________.

A.how we see things in 3-D                  B.how we watch the Olympic Games

C.how 3-D films are made                   D.where we watch 3-D films or TV

2.When we watch a 2-D film, each of our eyes get ________ information.

A.no               B.different          C.dark             D.the same

3.Which is the following is right according to the passage?

A.We don’t have to wear 3-D glasses if we watch games in 3-D on TV.

B.The 3-D technology is based on the way the human ear and eye work.

C.All the people can have fun watching 3-D movies or TV for a long time.

D.3-D glasses make us see different pictures in each eye at the same time.

4.Why are some people against watching 3-D films? Because ____________.

A.they make them more excited or sadder

B.3-D glasses make the screen look darker

C.3-D films make all people get headaches

D.they dislike watching the Olympic Games

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网