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

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.

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）

(　 )36. 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.

(　 )37. Scintillation also happens on 　　　　 according to the passage.

　　 　　 A. rainy days 　　 B. shiny days

　　 　　 C. cloudy days 　 D. windy days

(　 )38. 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.

(　 )39. The underlined word “observe” means “　　　　”.

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

(　 )40. 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.

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.

1. 1.

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

   1. A.
      It looks even brighter
   2. B.
      It looks as if it is bent
   3. C.
      It looks as if it is moving
   4. D.
      It looks like drops of rain
2. 2.

   Scintillation also happens on 　　　　 according to the passage.

   1. A.
      rainy days
   2. B.
      shiny days
   3. C.
      cloudy days
   4. D.
      windy days
3. 3.

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

   1. A.
      The rock gets broken
   2. B.
      The rock becomes unclear
   3. C.
      The water becomes much polluted
   4. D.
      The water does not move anymore
4. 4.

   The underlined word “observe” means “　　　　”.

   1. A.
      watch
   2. B.
      listen
   3. C.
      draw
   4. D.
      explain
5. 5.

   Why is scintillation a problem for astronomers?

   1. A.
      The stars never stay still
   2. B.
      It makes the stars too dark to see
   3. C.
      It makes astronomers feel too hot to work
   4. D.
      Astronomers cannot observe the stars clearly

阅读短文，根据要求完成下面各小题。

There is a Chinese saying:　Time and tidy wait for no man. Have too many things to do in too little time? Well, 76if you make a good plan, everything will be in order. This chart will certainly help. If you can do all this, every your single day will be productive(高效率的).

●Make a list

It all begins with listing. If you don’t have a list, create one.

●Worst first

We often have one thing on the list, which is hanging over our heads and makes us worried. Work on it first and make the rest of your day easier.

●Just do it

Those small thing are easier to deal with. Complete them and cross them off the list.

●Make things enjoyable

Have small breaks, enjoy music, or even a snack when you are tired.①________

●Pack times

Which part of your time is most productive?②__________

●Re-list

a. Sometimes you will not complete everything on your list. This is okay. Add them to tomorrow’s list with a star so that you will know they should be done first the next day.

b. By the day’s end you will have a rough (粗略的)idea of things you need to do tomorrow. Go ahead and list them. Tomorrow when you start fresh, you will not forget to do them.

1.请把划线部分的句子译成汉语。

2.What should you do if you are tired according to the passage?

___________________________________

3.从A、B、C中为78①②选出两个适当的选项，并将其字母标号分别填入在下面横线上。

A. Replay all the e-mail at a time and make all the phone calls at another time. This will help keep your mind and your job clear.

B. When this time comes around, close your door so that it is just you and your work.

C. Life is short. Enjoy your work.

①________________②_______________

4.What should you do if you can not finish today’s work?

____________________________________

5.Give a title(标题)in the passage.

____________________________________