71. In the race, the greatest distance one robotic vehicle covered was 　　　　　.

A. about eight miles　　 B. six miles　　　 C. almost two miles 　　　　　 D. about one mile

70. From the passage we know “robotic vehicles” are a kind of machines that 　　　　　.

A. can do effortlessly whatever tasks living things can

B. can take part in a race across 142 miles with a time limit

C. can show off their ability to turn themselves upside down

D. can move from place to place without being driven by human beings

69. DARPA organized the race in order to 　　　　　.

A. raise money for producing more robotic vehicles

B. push the development of vehicle industry

C. train more people to drive in the desert

D. improve the vehicles for future wars

68. Watchers doubted if any of the vehicles could finish the race because 　　　　.

A. they did not have any human guidance　　 B. the road was not familiar to the drivers

C. the distance was too long for the vehicles

D. the prize money was unattractive to the drivers

67. The main idea of this passage is that ___________.

A. Teenagers need friends　　　　　　　　　　 B. Friends can give good advice

C. Parents choose friends for their children

D. Good friends can communicate each other

　　　　　　　 　　　　　　　　　　　　　D

Thirteen vehicles lined up last March to race across the Mojave Desert, seeking a million in prize money. To win, they had to finish the 142-mile race in less than 10 hours. Teams and watchers knew there might be no winner at all, because these vehicles were missing a key part drivers.

DARPA, the Defense Advanced Research Projects Agency, organized the race as part of a push to develop robotic vehicles for future battlefields. But the Grand Challenge, as it was called, just proved how difficult it is to get a car to speed across an unfamiliar desert without human guidance. One had its brake lock up in the starting area. Another began by throwing itself onto a wall. Another got tied up by bushes near the road after 1.9 miles.

One turned upside down. One took off in entirely the wrong direction and had to be disabled by remote(远距离的)control . One went a little more than a mile and rushed into a fence, another managed to go for six miles but stuck on a rock .The “winner,” if there was any, reached 7.8 miles before it ran into a long , narrow hole , and the front wheels caught on fire .

“You get a lot of respect for natural abilities of the living things,” says Reinhold Behringer, who helped design two of the car-size vehicles for a company called Sci-Autonics . “Even ants(蚂蚁)can do all these tasks effortlessly . It’s very hard for us to put these abilities into our machines .”

The robotic vehicles, though with necessary modern equipment such as advanced computers and GPS guidance, had trouble figuring out fast enough the blocks ahead that a two-year-old human recognizes immediately. Sure, that very young child, who has just only learned to walk, may not think to wipe apple juice off her face, but she already knows that when there’s a cookie in the kitchen she has to climb up the table, and that when she gets to the cookie it will taste good . She is more advanced, even months old, than any machine humans have designed.

66. Which of the following is DIFFERENT in meaning from the sentence “Some parents may even stop their children from meeting their good friends.”?

A. Some parents may even not allow their children to meet their good friends.

B. Some parents may want their children to stop to meet their good friends.

C. Some parents may even not let their children meet their good friends.

D. Some parents may even ask their chil­dren to stay away from their good friends.

65. When teenagers stay alone, the usual way of communication is to _________.

A. talk with their parents　　　　　　 B. have a discussion with their family

C. go to their friends　　　　　　　　 D. talk with their friends on the phone

64. Many teenagers think their _______ know them better than their parents do.

A. classmates 　　　 B. 　　　 teachers　 　　　 C. brothers and sisters　　　 　　 D. 　　　 friends

63. You want to spend the Saturday by joining the entertainment with your family. Where should you go?

A. Disco at The Lord Napier.　　　　　　　　 B. Jazz at The Bull’s Head

C. The electric accordion at The Derby Arms.　　 D. he sin-along at The Black Horse.

C

Many teenagers feel that the most important people in their lives are their friends. They believe that their family members, especially their parents, don’t know them as well their friends do. In large families, it is often for brothers and sisters to fight with each other and then they can only go to their friends for advice. It is very important for teenagers to have one good friend or many friends. Even when they are not with their friends, they usually spend a lot of time talking among themselves on the phone. This communication is very important in children’s growing up, because friend can discuss something difficult to say to their family members.

However, parents often try to choose their children’s friends for them. Some parents may even stop their children from meeting their good friends. The question of “choice” is an interesting one. Have you ever thought of the following questions?

Who choose your friends?

Do you choose your friends or your friends choose you?

Have you got a good friend your parents don’t like?

62. You want to enjoy the electric accordion on Saturday. Which telephone number do you have to ring to find out what time it starts?

A. 789—6749. 　　　　　　 B. 682—1158. 　　　 　C. 789—4536.　　 D. 688—4626.