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三、阅读理解(共10小题；每小题2分，满分20分)
A
Satellites are an important part of our ordinary lives. For example, the information on weather forecasts is sent by satellite. Some satellites have cameras which take photographs of the Earth to show how clouds are moving. Satellites are also used to connect our international phone calls.
Computer connections of the World Wide Web and Internet also use satellites. Many of our TV programmes come to us through satellites. Airplane pilots also sometimes use satellites to help them find their exact location.
We use satellites to send television pictures from one part of the world to another. They are usually 35,880 kilometres above the equator. Sometimes we can see a satellite in the sky and it seems to stay in the same place. This is because it is moving around the world at 11,000 kilometres an hour—exactly the same speed that the Earth orbits the Sun at. A satellite must orbit the Earth with its antennae (天线) facing the Earth. Sometimes, it moves away from its orbit, so there are little rockets on it which are used to put the satellite back in the right position. This usually happens about every five or six days.
Space is not empty! Every week, more and more satellites are sent into space to orbit the Earth. A satellite usually works for about 10–12 years. Satellites which are broken are sometimes repaired by astronauts or sometimes brought back to the Earth to be repaired. Often, very old or broken satellites are left in space to orbit the Earth for a very long time. This is very dangerous because some satellites use nuclear power and they can crash into each other.
(
① They send information on weather forecasts.
② They take photographs of the Earth.
③ They send TV programmes.
④ They provide food for airplane pilots.
⑤ They stay in the same place.
⑥ They usually work for about 10–12 years.
A. ①②④
B. ①③⑤
C. ②③⑥
D. ②④⑥
(
A. 35,880 kilometres per hour.
B. 264,000 kilometres each day.
C. 11,000 kilometres per hour.
D. 430,560 kilometres each day.
(
A. Satellites can help airplane pilots find their exact location.
B. A satellite must orbit the Earth with its antennae facing the Earth.
C. Rockets on satellites are used to put the satellites in the right position.
D. Old or broken satellites in space may waste energy and cause danger.
A
Satellites are an important part of our ordinary lives. For example, the information on weather forecasts is sent by satellite. Some satellites have cameras which take photographs of the Earth to show how clouds are moving. Satellites are also used to connect our international phone calls.
Computer connections of the World Wide Web and Internet also use satellites. Many of our TV programmes come to us through satellites. Airplane pilots also sometimes use satellites to help them find their exact location.
We use satellites to send television pictures from one part of the world to another. They are usually 35,880 kilometres above the equator. Sometimes we can see a satellite in the sky and it seems to stay in the same place. This is because it is moving around the world at 11,000 kilometres an hour—exactly the same speed that the Earth orbits the Sun at. A satellite must orbit the Earth with its antennae (天线) facing the Earth. Sometimes, it moves away from its orbit, so there are little rockets on it which are used to put the satellite back in the right position. This usually happens about every five or six days.
Space is not empty! Every week, more and more satellites are sent into space to orbit the Earth. A satellite usually works for about 10–12 years. Satellites which are broken are sometimes repaired by astronauts or sometimes brought back to the Earth to be repaired. Often, very old or broken satellites are left in space to orbit the Earth for a very long time. This is very dangerous because some satellites use nuclear power and they can crash into each other.
(
C
) 31. Which of the following is true about satellites according to the passage?① They send information on weather forecasts.
② They take photographs of the Earth.
③ They send TV programmes.
④ They provide food for airplane pilots.
⑤ They stay in the same place.
⑥ They usually work for about 10–12 years.
A. ①②④
B. ①③⑤
C. ②③⑥
D. ②④⑥
(
C
) 32. What speed does the Earth orbit the Sun at?A. 35,880 kilometres per hour.
B. 264,000 kilometres each day.
C. 11,000 kilometres per hour.
D. 430,560 kilometres each day.
(
D
) 33. What can you infer according to this passage?A. Satellites can help airplane pilots find their exact location.
B. A satellite must orbit the Earth with its antennae facing the Earth.
C. Rockets on satellites are used to put the satellites in the right position.
D. Old or broken satellites in space may waste energy and cause danger.
答案
31—33 CCD
