阅读下面的短文,从所给单词中选出适当的单词,并且用其正确的语言形式填在标有题号的空白处,使句意通顺完整。（每空一词,每个单词使用一次）
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Cars are very 1. , but too 2. cars make much pollution (污染). Now the idea of “car sharing”(拼车) is popular 3. the world. That’s to say, more 4. are sharing the use of the car. Not everyone 5. a car. As we know, so many families have cars today, most of 6. don’t use it everyday. Some cars 7. most of their time staying in garages(车库). We don’t use them, but parking(停车) and other things can 8. us a lot. That needs a lot of money.
To 9. money, some people thought of the idea of “car sharing”. If we share a car, we can only pay for it 10. we use it. Now more and more people would 11. to do car sharing. In Switzerland(瑞士), about 40,000 people are 12. this thing. Japan is 13. trying to make “car sharing” popular around the country.
“Car sharing” is a new idea in transportation(交通). It is also very easy 14. us to go everywhere we want without 15. a car.
Every year several thousand people die in the car accidents in Great Britain. And between one and two hundred thousand people are hurt.
There are rules to make the roads safe, but people do not always obey (遵守) the rules. They are careless. If everybody obeys the rules, the road will be much safer. How can we make the roads safer?
Remember this rule. In Great Britain traffic keeps to the left. Cars, buses and bikes must all keep to the left side of the road. In most other countries traffic keeps to the right.
Before crossing the road, we should stop and look at both ways. Look right and left. Then, if you are sure that the road is clear, it is safe to cross the road. If you see small children or very old people, help them to cross the road. We must teach our children to cross the road safely. We must always give them a good example. Small children must not play in the street.
1. If we want to make the roads safer, _______.
A. everybody must be careful and obey the traffic rules
B. traffic should keep to the right
C. don’t cross the road too often
D. roads must be clear
2.If you ride a bike in Great Britain, you must ride_______ .
A. on the right side of the road B. on the left side of the road
C. in the middle of the road D. behind the buses
3. Which is NOT right?
A. Before crossing the road, we should stop and look at both ways.
B. In our country traffic keeps to the right.
C. Few people die in the traffic accidents in Great Britain
D. Streets are not safe places for playing.
4.“The road is clear” means that _______.
A. the road is not noisy
B. the road is very clean
C. there is no car or bus running
D. you can see very clearly on the road
5. The safe way to cross the road is to_______.
A. look right B. look left
C. look both ways, right and left D. run cross the road
Scientists （科学家） are trying to make the deserts （沙漠） into good land again. They want to bring water to the deserts, so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming deserts all the time. Scientists may not be able to change the deserts. Scientists think that people make deserts. People are doing bad things to the earth.
Some places on the earth don’t get much rain. But they still don’t become deserts. This is because some green plants are growing there. Small green plants and grass are very helpful to dry (干旱的)places. Plants don’t let the hot sun make the earth even drier. Plants don’t let the wind blow the earth away. When a little bit of rain falls, the plants hold the water. Without plants, the land can become deserts much more easily.
1.Why can the land become deserts?
A. Some places don’t get much rain.
B. Plants don’t let the hot sun make the earth even drier.
C. People don’t keep the earth well.
D. Scientists haven’t learnt enough about the deserts.
2.Scientists are to make the deserts into good land again.
A. carrying water B. growing food C. doing nothing D. studying a lot
3.Which is NOT true?
A. The land never stops becoming deserts.
B. Scientists ask people to live in the deserts and grow food there.
C. People do bad things to the earth.
D. Scientists may not be able to change the deserts.
4.Why are green plants and grass helpful?
A. They can hold the water.
B. They can keep the earth wet.
C. They can stop the wind from blowing the earth away.
D. All the above.
5.Which is the best title（题目）for the passage?
A. The Desert Problem
B. People Make Deserts
C. Green Plants and Grass
D. The Deserts, the Tree and the Water
Birds live in the trees. Squirrels（松鼠） live in the trees. But do you know that some frogs（蛙） live in the trees, too?
The tree frog is hard to find. It can change colors. On green leaves, it stays green. On a brown branch（树枝）,it turns brown. Some tree frogs can change from green to gold（金黄色） or blue.
Tree frogs have legs and wide feet. They have sticky pads（黏性的肉趾） at the end of their toes. These sticky toe pads keep the tree frogs from falling off the trees. Tree frogs have different colors and markings（斑点） on their skins. Their eyes are different, too. Some have green eyes, and others have bright red ones.
The sounds they make are different, too. One frog makes a sound like a dog barking（狗吠）.Another frog makes a loud noise like a snore（打鼾）.There is even a frog that whistles（吹口哨）！
1. According to the passage, these frogs are hard to find because________.
A. they stay in trees B. they can change their colors
C. they have sticky pads D. they make surprising sounds
2. The color of tree frogs on green leaves is________.
A. gold B. brown C. green D. blue
3.What sounds can the frogs make?
A. like a dog barking B. like a snore
C. like a whistle D. A,B and C
4. Which of the following sentences is RIGHT?
A. The tree frogs have different colors and markings on their skins.
B. The tree frogs can’t make a loud noise like a snore.
C. We can easily tell tree leaves from tree frogs.
D. We still can’t find tree frogs if we hear a sound like a snore in the forest.
5. The passage is mainly about________.
A. the colors of a special frog B. the sounds of a special frog
C. the eyes of a special frog D. something about tree frogs
While I ________to the programs, my mother ________outside.
A. listened; was washing B. was listening; washed
C. was listening; was washing D. was listening; is washing
It ______ the workers about 20 months to build the Huhang highspeed railway.
A．took B．spent C．cost D．paid
