Some special projects are under way to protect our environment,so we may be the way to having a clean and beautiful home in the near future. 题目和参考答案——青夏教育精英家教网—

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7. Some special projects are under way to protect our environment,so we may be the way to having a clean and beautiful home in the near future.

7. on

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Earthquakes,also called temblors (地震) ，can be so extremely destructive; it's hard to imagine they occur by the thousands every day around the world,usually in the form of small tremors.

Some 80 per cent of all the planet's earthquakes occur along the rim of the Pacific Ocean,called the "Ring of Fire" because of the preponderance (数量上的优势) of volcanic activity there as well. Most earthquakes occur at fault zones,where tectonic plates―giant rock slabs that make up the earth's upper lay?er―crash or slide against each other. These impacts are usually gradual and unnoticeable on the surface. However,immense stress can build up between plates. When this stress is released quickly,it sends massive vibrations (震动) ，called seis?mic waves,often hundreds of miles through the rock and up to the surface. Other quakes can occur far from fault zones when plates are stretched or squeezed.

Scientists assign a magnitude rating to earthquakes based on the strength and du?ration of their seismic waves. A quake measuring 3 to 5 is considered minor or light; 5 to 7 is moderate to strong; 7 to 8 is major,and 8 or more is great.

On average,a magnitude 8 quake strikes somewhere every year and some 10,000 people die worldwide annually in earthquakes. Collapsing buildings claim by far the majority of lives,but the destruction is often compounded (加重) by mud slides,fires,floods,or tsunamis. Smaller temblors that usually occur in the days following a large earthquake can complicate rescue efforts and cause further death and destruction.

Loss of life can be avoided through emergency planning,education,and the construction of buildings that sway rather than break under the stress of an earth?quake.

1. Why is the rim of the Pacific Ocean called the "Ring of Fire"?

A. Because 80 %of the earth's quakes occur there.

B. Because there are many fault zones along the rim.

C. Because volcanoes happen actively along the rim.

D. Because seismic waves are sent out from the rim.

2. An earthquake can't happen when .

A. tectonic plates collide against each other

B. tectonic plates are stretched

C. tectonic plates move slightly

D. tectonic plates are squeezed

3. A major earthquake is measured at a magnitude of .

A. 7 to 8 B. 5 to 7

C. 3 to 5 D. 8 or more

4. What is the most effective way to avoid death in earthquakes?

A. To make quick rescue efforts.

B. To educate people knowledge of earthquakes.

C. To have a detailed plan in an emergency.

D. To build buildings strong enough.

Lightning flashed through the darkness over Sibson's bedroom skylight (天窗) .Sibson was shaken by a clap of thunder 32 he knew what was happening. The storm had moved directly 33 his twostorey wooden house. Then he heard the smoke alarm beeping.

Sibson rushed down the stairs barefoot to 34 he opened the door to the basement,and flames 35 out. Sibson ran back upstairs to call 911 from his bedroom. "I felt 36 because the room had a separate outdoor stair?way," he explains.

But the phone didn't work,and when he tried to go down the outdoor stairway,he was 37 by a wall of flames. Sibson realized he was trapped.

Sibson's house was three kilometres 38 the main road and was so well hidden by trees that he knew calling for help would be 39 .

Up a hill nearby lived Sibson's neighbour,Huggons. He was lying in bed when something like a smoke alarm 40 his ears. He jumped out of bed,took his 41 and flashlight,and headed down the hillside towards the 42 . That was when he saw the rolling heavy smoke.

Huggons dialed 911,and the operator warned him not to 43 the house. But Huggons said, "There is no way I am going to listen to Sibson 44 and die in that fire."

"Anyone there?" Huggons called out. Then he heard "Help!I'm trapped!" coming from the second floor balco?ny. He entered the house,but soon had to run back to catch his 45 .

After one more 46 inside the house,Huggons gave up and 47 around back.

The wind parted the smoke just 48 for him to catch sight of Sibson. But there was no way to get to him.

He 49 the flashlight into the woods and noticed a lad-¹der. He took it over to the balcony and 50 Sibson down just as the second floor of the house fell off.

Sibson is still 51 when he tells the story. "I was alone that night”，he says. "Then I heard the most beau?tiful sound in my life. It was Huggons."

32. A. before B. while C. since D. until

33. A. on B. in C. through D. over

34. A. hide B. wait C. check D. escape

35. A. moved B. gave C. went D. exploded

36. A. safe B. worried C. glad D. tired

37. A. burned B. stopped C. shocked D. covered

38. A. beside B. off C. across D. along

39. A. limited B. false C. fruitless D. regretful

40. A. struck B. missed C. touched D. passed

41. A. coat B. key C. basin D. phone

42. A. noise B. road C. smoke D. danger

43. A. search B. enter C. leave D. damage

44. A. call B. roll C. scream D. sigh

45. A. breath B. attention C. ladder D. flashlight

46. A. stay B. chance C. thought D. attempt

47. A. climbed B. circled C. looked D. jumped

48. A. clear B. open C. enough D. fit

49. A. led B. put C. drove D. shone

50. A. persuaded B. kicked C. pulled D. forced

51. A. nervous B. surprised C. proud D. thankful

5. —Do you subscribe to her pessimistic view of the state of the economy?

―A not!I think it is just on the rise.

3. If you are travelling north,you must change at Leeds.

，you must change at Leeds.

5. While working outdoors,Linda was overcome by the heat and fell to the ground , ( conscious) .

2. Having kept waiting the whole night,all the viewers became impatient and fell into a bad mood.

1. Though (taste) terrible,the medicine is said to have a good effect on one's headache.

8. The Amazon rainforest is (........ 的家园) millions of different kinds of animals and plants.

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