Why do earthquakes happen? Scientists explain that the outside of the earth is made of a number of different plates(极块). For example, at San Francisco the Pacific(太平洋的) Plate which is moving towards the northwest meets the North American Plate. The Pacific Plate is moving very slowly-at 5. 3 centimetres a year. Sometimes these two plates stop and do not move for years. Then suddenly, they jump and an earthquake is felt. As the movement of these plates, West America near the sea has always been a bad place for earthquakes. When the 1906 earthquake happened, the Pacific Plate jumped 5-6 metres to the north.

We cannot stop earthquakes, but we can do things to make sure they don't destroy(毁坏) the whole of cities. First ,it is not a good idea to build houses along the lines, where two of the earth's plates join together. Second, if you think there may be an earthquake, it is better to build houses on rock not on sand. Third, you must make the houses as strong as possible. Weak buildings will fall down in an earthquake, but strong ones may stay up.

1. Scientists explain that _____.

A. the outside of the earth is made of a plate

B. the inside of the earth is made of different plates

C. the outside of the earth is made of lots of different plates

D. the earth is a plate

2. An earthquake can be felt ______

A. when two plates push each other

B. when one plate pulls another plate

C. when one plate jumps over another plate

D. when two plates don't move

3.An earthquake shook San Francisco in the past because _____.

A. San Francisco stands along between the Pacific Plate and the North American Plate

B. San Francisco stands near the Pacific

C. San Francisco is near the sea

D. the city of San Francisco wasn't built very well

4.We can't stop _____.

A. earthquakes from destroying the whole of cities

B. earthquakes

C. building houses along the earthquake line

D. building weak houses at San Francisco

5.We _____to make sure earthquakes don't destroy the whole of cities.

A. should build houses far from the earthquake line

B. should build houses on rock not on sand if we think there may be an earthquake

C. must make the houses as strong as possible

D. A, B and C

Alan worked in an office in the city. He worked very hard and really looked forward to his holiday. He usually went to the seaside, but one year he saw an ad. in a newspaper “Enjoy country life. Spend a few weeks at William Farm. Good food, fresh air, horse riding, walking, fishing…”

“This sounds like a good idea.” he thought, I’ll spend a month at William Farm. I’ll go horse riding, walking and fishing. It’ll be different from the seaside.” Four days later, he returned home.

“What’s wrong with William Farm?” His friend Jack asked him. “Didn’t you enjoy country life?”

“Country life was fine,” Alan said. “But there was another problem.”

“Oh, what problem?”

“Well, the first day I was there, a sheep died, and we had roast(烤肉) mutton for dinner.”

“Fresh meat is the best.”

“I know, but on the second day a cow died, and we had roast beef for dinner.”

“Lucky you!”

“You don’t understand,” Alan said, “On the third day a pig died and we had roast pork for dinner.”

“A different roast every day.” Jack said.

“Let me finish.” Alan said, “On the fourth day a farmer died and I didn’t want to stay there for dinner.”

1.Alan saw ________ in a news paper.

A. an ad. B. a letter

C. a story D. a report

2.Alan usually went to ________ on the vacation.

A. the mountains B. the countryside

C. the seaside D. William Farm

3.Alan spent _________ at William Farm.

A. four days B. three months

C. a month D. a few weeks

4.Alan had roast _______ for dinner on the third day.

A. mutton B. pork C. beef D. fish

5.From the passage we know that ________.

A. Alan left the farm because he missed his family

B. Alan left the farm because he had four dinners at the farm

C. Alan left the farm because he couldn’t go fishing at the farm

D. Alan came back home because he was afraid of the fourth dinner

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