( )50. What can we learn from the passage?

　　A. It's safer to travel by bus.

　　B. A helmet is necessary when you drive a car.

　　C. Old men shouldn't go out by themselves.

　　D. It's important for us to follow traffic rules.

B

　　What will our life be like in 50 years? No one knows the answer exactly (确切地), but we are sure that it will be very different from the life today. My brother Jill White makes some predictions. Here are some of his ideas.

　　First, people will have less work to do, and robots will do most work. People will use robots to make cars, do the housework, look after sick people and teach students. People will spend most of their time playing sports and traveling. So people will become stronger and healthier, and they will live to be about 200 years old.

　　Second, cars will become very small and computers will control (控制) their speed. So there will be fewer accidents ) on the road. Planes will be very popular, and most people would like to take them to travel.

　　Third, people will be able to live in the sea, on the moon or on Mars. The earth won't be crowded or noisy. So there will be much space for people to plant trees. There will be less pollution, and the air will become much fresher.

　　Finally, water shortage will become one of the most serious problems. If people don't save water now, there will be water wars (战争）in 50 years.

( )51. Jill White thinks that in 50 years robots will help to do the following things EXCEPT(除了) .

A. looking after sick people B. driving cars

C. teaching students D. doing the housework

( )52. Jill White thinks most people will travel in 50 years.

A. by bike B. by plane C. by train D. by car

( )53. According to Jill White, in 50 years.

A. every family will have a car

B. people won't need to work

C. computers will control the cars' speed

D. the earth will become crowded and noisy

( )54. The underlined word " shortage" means '' " in Chinese.

A.短缺 B.丰富 C.清澈 D.浑浊

( )55. This passage mainly tells us in 50 years.

A. the schools B. the cars C. the robots D. the life

C

　　The earth is worse than before because of serious A. p : air pollution, land (土壞) pollution and water pollution. Irresponsible (不负责任的) people damaged the environment and now we have serious problems. What should humans do to save the earth?

　　First,we should not make too much rubbish (垃圾). It needs more areas, so there will not be enough space for people to live. The land will then be polluted and fewer plants can grow.

Next, we should keep the sea and rivers clean. C.鱼不能在污染的水里存活，so it may be B. i_______ for us to enjoy so much seafood or swim happily in the sea in the future.

Third, everyone should help to keep the air clean. Polluted air is bad for our physical health. So we must stop people and factories from polluting the air.

To make the earth a better place, everyone should learn to love our planet from now on. And everyone should play a part in saving the earth.

根据短文内容，完成下列任务。

任务一：根据首字母提示填单词，完成短文

56. A. ___________ B. ____________

任务二：把C句译成英语。

57.

任务三：根据文章内容，回答问题