Have you heard about “Survival （生存）Holidays”? “Survival Holidays” is for children to go into the lonely place for exciting activities. Now about 1,100 companies are allowed to take children into the great outdoors without their parents.
The reason why people like “Survival Holidays” is that they think being close to nature is good for children. Many children in big cities spend all time watching TV and playing computer games. “Survival Holidays” gives them an important change.
Is “Survival Holidays” a wonderful idea? Maybe it is. Children need more free time to play. They need to be left on their own, without adults disturbing(打扰) them. Parents care too much about their children. They like to see the children being busy with activities that are controlled by adults, but children don’t know what to do when they are in danger. Even something like crossing a small river seems to be a hard challenge. Children are not comfortable with danger. Even small danger like getting their feet wet or falling down seems very terrible to them.
Many people think the survival activities are good for children. Even years later, they will still remember what they have learned. Some have learned to stay calm in different times. Some have learned how to keep safe. Others have learned how to work in a team. All these skills will help them a lot in their lives.
【小题1】Is “Survival Holidays” for children or parents?
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【小题2】Why do people like “Survival Holidays”?
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【小题3】What do the children in big cities usually do?
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【小题4】How do children feel when they are in danger?
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【小题5】What can children learn in the survival activities?
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A: Good morning, Sue. Did you enjoy your holiday in the country?
B:    【小题1】   And some friends went with us.
A:    【小题2】 
B: In a hotel. And we could enjoy the beautiful scenery from the window.
A: Sounds goood.   【小题3】  
B: The sun shone nearly every day and it didn’t rain at all.
A:   【小题4】   
B: Yes,they were great. We met some farmers and had some food in their houses.    __【小题5】  Did you have a good weekend?
A: Yes,but I didn’t do much. I just stayed at home.

A．What was the weather like? B．Where did you stay? C．How about you? D．Yes,we had a great time. E.Did you like the people there?

A: Good morning, Sue. Did you enjoy your holiday in the country?

B:    1.    And some friends went with us.

A:    2. 

B: In a hotel. And we could enjoy the beautiful scenery from the window.

A: Sounds goood.    3.  

B: The sun shone nearly every day and it didn’t rain at all.

A:    4.   

B: Yes,they were great. We met some farmers and had some food in their houses.     __5.   Did you have a good weekend?

A: Yes,but I didn’t do much. I just stayed at home.

A.What was the weather like? B.Where did you stay? C.How about you? D.Yes,we had a great time. E.Did you like the people there?

 

When you look up into the sky at night, have you ever felt that your eyes are playing tricks on (捉弄) you? It seems that the stars are moving all the time.

Actually, there is nothing wrong with your eyes. This twinkling effect is called scintillation (交光). Scintillation happens because of air movements in the earth’s atmosphere (大气). Light is “bent (弯曲的)” when it travels through different parts of the earth’s atmosphere. As the air in the earth’s atmosphere is moving all the time, the light from the stars looks as if it is moving too.

The same thing also happens to things on the ground. On a very hot and shiny day, if you look at the road, the image in the distance is not clear and things move slightly. You can also see the same effect if you drop a rock into water. The rock appears a little unclear under the moving water.

This twinkling effect causes a lot of problems for astronomers (天文学家) since they cannot observe the stars clearly. A telescope (望远镜) was sent into space so that the air movements in the atmosphere could be avoided (避免). It took a long time to build the space telescope but finally in 1990, a huge space telescope called the Hubble Space Telescope was successfully sent into space. Since then, astronomers have many important observations that have helped people understand space better.

根据短文内容，选择最佳选项。 （10分）

1.What happens to the light from the stars we see when the air in the earth’s atmosphere is moving?

A．It looks even brighter.

B．It looks as if it is bent.

C．It looks as if it is moving.

D．It looks like drops of rain.

2.Scintillation also happens on 　　　　 according to the passage.

A．rainy days                             B．shiny days

C．cloudy days                            D．windy days

3.What can you see when you drop a rock into the water?

A．The rock gets broken.

B．The rock becomes unclear.

C．The water becomes much polluted.

D．The water does not move anymore.

4.The underlined word “observe” means “　　　　”.

A．watch            B．listen             C．draw             D．explain

5.Why is scintillation a problem for astronomers?

A．The stars never stay still.

B．It makes the stars too dark to see.

C．It makes astronomers feel too hot to work.

D．Astronomers cannot observe the stars clearly.