题目内容
| 阅读理解。 | ||||||||||||
| In 5 years,China plans to put its astronauts on the moon.But before that, a small machine rover (探月车) will be sent there.Recently, scientists in S hanghai showed a moon rover to the public. Scientists said they had spent four years making it.And they hoped the rover would be chosen to go to the moon. What is it like? The rover has six wheels (轮子).It is meters high and 200 kilogrammes in weight.It can take videos and pictures of the moon.It can also get moon soil and study it. The rover can go as fast as 100 meters an hour.Experts say it can climb a 30-degree slope (斜坡).It is smart and can get around rocks. According to researchers,the rover may need to be improved.The moon's gravity (重力) is only one--sixth that of the earth's.There are strong rays (射线) from the sun.The temperature also changes greatly there.It can be --180~C at night and 150~C in the daytime. China wild explore the moon.First,a spaceship will be sent to go around the moon.There will be no person in the spaceship.Then in 2012, a moon rover will be sent there.Finally,an astronaut will land on the moon sometime after 2017. The China--made moon rover looks very similar to NASA'S Mars rover.But there are differences
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| 1.If there is a box which is 60N on the earth,it is ________ N on the moon. | ||||||||||||
| A.60 B.10 C.about 100 D.about 600 | ||||||||||||
| 2.Which of the following is right? | ||||||||||||
| A.In 2012,an astronaut of China will land on the moon. B.Mars rover runs faster than Moon rover. C.Mar rover and Moon rover have the same power. D.China has made a Moon rover. |
| 1--2 BD |
阅读理解
High in the mountains, and deep in the forest, lives a lake with many plants and animals in and around her. The plants and animals have enough food and clean water to keep them healthy. The wind carries pure air, and the rain comes down clear and clean.
But recently, Lucy Lake and her friends haven’t been feeling very well. All the plants and animals get together to talk about the problem. “Why are we sick?” “What can we do?” ask all of them. No one has any answers.
Just then two hikers appear. The animals tell them about their problems. “Can you help us?” they ask. “Yes,” one hiker says. “I think it’s because of acid rain.”
“Acid rain comes from chemicals(化学物质) in the air. The pollution comes from factories, cars and trucks.”
“So, although I don’t want to, I help the pollution travel through the air!” says the wind. “And I carry it to the land!” cries the rain.
“If you can help us think of some solutions(解决方法), we will send a message to tell people how to clean up our environment,” one hiker says.
With the help of the plants and animals, the two hikers make a list of ideas for saving Lucy Lake and her friends.
Time passes, and the forest and lake begin to feel a little better.
The next time the hikers climb up the mountains to Lucy Lake, they smile at what they find. “We’re glad things have started to change,” one hiker says. “And we’re glad you helped us make a difference,” says the other.
1.The underlined word “pure” can be replaced by “____”.
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A.polluted |
B.clean |
C.cold |
D.cool |
2.The two hikers are most probably ____.
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A.scientists |
B.teachers |
C.doctors |
D.reporters |
3.____ have (has) nothing to do with the cause of acid rain.
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A.The rain |
B.Human beings |
C.The wind |
D.The plants and animals |
4.The underlined word “you” refers to (指) ____.
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A.Lucy Lake |
B.the plants and animals |
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C.one of the two hikers |
D.the wind and the rain |
5.Which of the following is NOT true?
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A.Acid rain is very harmful only to plants and animals. |
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B.Human activities are the main cause of acid rain. |
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C.Acid rain can make the living things in the environment get sick. |
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D.We should clean up our environment to protect us against acid rain. |