Air pollution comes from factories, power stations and cars. Chemicals in the smoke from power stations cause a lot of damage（损害；毁坏）. They can travel hundreds of miles in the wind before falling to the ground in the rain. And this “chemical rain” gradually（逐渐地）destroys trees in the forests and kills fish in the lakes. In Germany, over 50% of the country’s trees had been damaged by the year 1986.

Time and time again there are serious accidents that pollute the air. In 1986 there was a serious accident at a nuclear power station in Russia. A cloud of radiation flew across the whole Europe. It is said that 125,000 people died in Russia as a result of illness caused by this accident.

In 1984 there was a serious accident at a factory in India and a cloud of dangerous gas covered the town of Bhopal. Over 2,500 people were killed that night, and hundreds of thousands of people were injured (受伤的). Many of the injured lost their sight.

(   ) 54. Air pollution comes from _____.

A. factories                   B. power stations          C. cars                  D.  A,B and C

(   ) 55. According to the passage, which sentence is right?

A. Chemicals in the smoke from power stations can’t travel far in the wind.

B. “Chemical rain” is good for the trees.

C. “Chemical rain” is bad for our environment.

D. Chemicals in the smoke from power stations are very safe.

(   ) 56. In Germany, how many trees had been damaged by the year 1986?

A.A quarter.             B.A half.                   C.Three quarters.        D.A third.

(   ) 57. What was the result of the accident that happened in Russia in 1986?

A. Over 2,500 people were killed.          

B. Many people couldn’t walk.

C. Many people lost their sight.

D. Compared with (同……比较) the accident in India, more people died.

Mr. Evans lives in a city.He was a maths 31 three years ago.He taught well and his students 32 him.So he decided to work in the middle school in his life.But

a terrible accident 33 his fortune(命运).

One spring he took his class to 34 a place of interest.The children saw a lot of 35 things and had a good time there.But on their way to school, their 36 was hit by a truck because the young driver was drunk(醉).Five students 37 and more than half of the children were 38 .He didn't know how it had happened and was very 39 it and after he came out of the hospital, he left the school and become a traffic 40 .He tried his best to stop the drivers from breaking the traffic regulations(交通规则).He worked hard and was strict with the drivers.So they were afraid of him.

One afternoon it was very hot.Mr Evans was 41 .He was standing at the crossing

and watching the traffic.Suddenly he saw a 42 rushing to the crossing.It ran so fast that it almost hit a man 43 a bike.He stopped it at once and saw a girl in it.

" 44 your license to me ,madam," said Mr. Evans.

The girl landed her bag to him and said, "Please look for it 　45 . I can‘t see anything without glasses."

　　31. A. worker　　　 B. teacher　　　 C. doctor　　　 　D. farmer

　　32. A. liked　　　　 B. wished　　 　 C. helped　　 　　D. answered

　　33. A. beat　　　　 B. won　　　 　　C. lost　　　　 　 D. changed

　　34. A. build　　　 　B. break　　　 　C. visit　　　 　 D. find

　　35. A. terrible　　 B. dangerous　　 C. safe　　　　 　D. interesting

　　36. A. bus　　　 　　B. train　　　　 C. car　　　　 　　D. ship

　　37. A. left　　　　 B. lived　　　　 C. died　　　　 　 D. fell

　　38. A. beaten　　　 　B. injured(伤)　 C. touched　　 　 D. stopped

　　39. A. sad about　 　B. afraid of　 　C. interested in　 D. worried about

　　40. A. soldier　　 　B. cleaner　　　 C. bookseller　 　 D. policeman

　　41. A. in the corner B. at home　　　 C. on duty　　 　D. in the office

　　42. A. runner　　　 B. policeman　 　C. player　　　 　D. car

　　43. A. riding　　　 　B. selling　　 　C. buying　　　 　D. making

　　44. A. Throw　　　 　 B. Show　　 　　 C. Lend　　　 　　D. Copy

45. A. you　　　　 　B. I　　　　　 　C. yourself　　 　D. myself