71. If you keep a pet greyhound , it is important _____.

　 A. to keep it slim　　　　　　　 B. to keep it warm

　 C. to take special care of its legs　 D. to take it animal doctors regularly

　　　　　　　　　　　　　　　　　　 E

　　 Look at your watch just one minute . During that time the population of the world increased by 85 people. Perhaps you think that isn’t much . In the next hour , more than 5,000 additional( 另外的 ) people will be living on this planet. So it goes, hour after hour . In one day , there are about 120,000 additional mouths to feed. Multiply( 乘 ) this by 365. What will happen in 100 years?

　 This population explosion ( 激增　 ) may be the greatest challenge of the present time. Within the next forty years , the world population may double. Can the new frontiers ( 尖端 ) of science meet the needs of the crowded world of tomorrow?

　 This population explosion increase for the next 600 or 700 years , there will be standing room only. Each person will have between 3 to 10 square feet of space in which to live. This includes the mountain tops, deserts, and the ice and snow fields of the polar regions( 极地 ) Of course, no one expects such a thing to happen. War, plague( 瘟疫 ) , famine( 饥荒 ) or some other catastrophe (灾难) can be expected to happen long before the population reaches this point . Actually, the danger is not in an overcrowded world where people are huddled (挤 ) together so that they cannot move arms and legs , but in an upset balance between population and resources(资源).　

70. Why does the author say that greyhounds make great pets?

　 A. They are big in size　　　　　　　 B. They live a very long life

　 C. They can run races for some time .　 D. They are quite and easy to look after

69. It can be inferred that greyhounds　 __________.

　 A. love big doghouses　　　 B. always stay in bed all day

　 C. make the best guard dogs　 D. none of them is right

68. The text is written mainly ________.

A.　　 to tell people how to raise greyhounds　

B. to let people know more about greyhounds

　 C. to explain why greyhounds are aggressive

　 D. to describe greyhounds of different colors

67. Where should passengers buy their tickets ?

　 A. From the bus driver　　　　 B. On the bus after getting on it.

　 C. From the conductor(售票员). D. At the station before boarding

　　　　　　　　　　　　　　　 　　D

Most people think of racing when they see greyhounds(灰狗) and believe they need lots of exercises. They can actually be quite lazy! Greyhounds are good at fast races but not long-distance running . They do need regular exercise but they like to run for a short burst and then get back on the bed of a comfortable seat. Another misunderstanding is that greyhounds must be aggressive(好斗的) because they are big in size. In fact, greyhounds love people and are gentle with children.

　　 Greyhounds can live for 12-14 years but usually only race for two or three years , and after that they make great pets . they don’t eat a lot for their size.

　　 Normally , greyhounds can be as tall as 90 cm. There is , however, a small-sized greyhounds , which stands only 33 cm. Greyhounds come in a variety of colors . Grey and yellowish-brown are the most common . Others include black, white, blue , red and brown or a mix of these.

　　 Greyhounds have smooth body coats, low body fat and are very healthy . Because they are slim , they don’t have the leg problems like other dogs with the same height. But they do feel cold, especially since they would much rather be at home in bed than walking around outside.

66. You’ll go back home from work in Brennan . Which of the following bus will you take?

　 A. 7:30 p.m.　　 B. 6:00 a.m.　 C. 5:45 p.m.　　 D. 6:20 p.m.

65. If you get to the Railway Station ,New York City at 11:35 p.m. on Saturday , how long will you have to wait before you take a bus?

　 A. a day　　 B. two days　　　 C. 25 minutes　　 D. No bus can be taken

64. If you want to take a bus in the evening rush hour, you should take the ____ in the Railway Station , New York City on Monday.

　 A. 6:20 p.m.　　 B. 5:45 p.m.　　 C. 8:00 p.m.　　　 D. 7:15 p.m.

63. The text mainly deals with __________.

　 A. the progress in correspondence　　　 B. the advantage of fax machines

　 C. the advantage of emails　　　　　　 D. the invention of fax machines

　　　　　　　　　 　　　　　　　　C.

The following notice is posted in the bus station .

Time Table :

●Buses leave the Railway Station ,New York City, from 7:00 a.m. and every half an hour thereafter , until 11: 30 p.m. . (7 days a week)

●Buses leave Brennan Station 20 minutes before and after every hour from 6:20 a.m. to 11:40p.m. (7 days a week )

●Evening rush hours (5:00p.m.to 7:00 p.m. ) : Buses leave the Railway Station , New York City every 15 minutes . (Monday----Friday)

●Holidays Buses leave every hour on the hour , each direction .(Trip time: 30 minutes each way)

●All tickets must be bought at Window 12, The Railway Station , New York City , or at the Brennan Station Window BEFORE boarding buses.

62. In the last paragraph , the writer mentions “think before you email” to show that_____.

A.　　 you may regret if you don’t seal your envelope

　 B. you may regret before you send something by email

C. you’d better not send your email in a hurry　

D. you need plenty of time to send an email