74.The first try of the hibernation technologythe six?person Human Outer Planets Exploration Mission to Jupiter’s moon Callisto.

A. will be　　　　　　　　　　 B. has been planned for

C. is certain to be　　　　　　 D. may be

73.In a hibernating state, a person needs ________.

A. less sleep　 B. more food　 C. less energy　 D. more movement

72.According to the article, the hibernation research _______.

A. is just an ideaB. is always a science fiction　

C. has already finished successfullyD. has made some progress

71.　What would be the best title for the text?

A.　Jesse Owens,　 A Great American Athlete

B.　Golden Moment - A Life?time Struggle

C.　Making A Living As A Sportsman

D.　How To Be A Successful Athlete

E

Have you ever dreamed of visiting a planet in the Milky Way (银河系)? While the trip sounds exciting, it would take years and years to reach your destination. So in the future, bedtime for astronauts may be more than a few hours of regular shut eye. They would have to sleep for years.

European researchers are now conducting hibernation experiments. The study may help them understand whether humans could ever sleep through the years it would take for a spaceflight to distant planets. "If there was an effective technology, it could make deep?space travel a reality," said Mark Ayre of the European Space Agency last month.

What seems like a science fiction is not completely unlikely. Researchers have been able to use chemicals to put living cells into a sleep?like state where they don’t age. They have now moved on to the small, non?hibernating mammals (哺乳动物) like rats.

A major challenge is the fact that cells can be very simple systems, whereas body organs are far more complex (复杂的). "It’s like moving from a simple Apple computer to a supercomputer," said Marco Biggiogera, a hibernation researcher at Italy’s University of Pavia. Just like bears and frogs, the hibernation of human beings would cause a person’s metabolism (新陈代谢) to lower so they would need less energy.

Medical research, however, is just half of a spaceflight hibernation system. There is a challenge of designing a suitable protective shelter (栖身所). Such a shelter would provide the proper environment for hibernation, such as the proper temperature. It would also have to monitor (监控) life functions and serve the physiological needs of the hibernator.

According to Ayre, the six?person Human Outer Planets Exploration Mission (使命) to Jupiter’s moon (木星的卫星) Callisto, could be an opportunity to use human hibernation. The mission aims to send six persons on a five?year flight to Callisto, where they will spend 30 days, in 2045.

70.　When Owens says "They have kept me alive over the years ",he means that the medals.

A.　have been changed for money to help him live on

B.　have made him famous in the US

C.　have encouraged him to overcome difficulties in life

D.　have kept him busy with all kinds of jobs

69.　We can infer from the text that Owens was treated unfairly in the US at that time because.

A.　he was not of the right race

B.　he was the son of a poor farmer

C.　he didnˊt shake hands with Hitler

D.　he didnˊt　 talk to the US president on the phone

68.　In the Big Ten meet，Owens.

A.　hurt himself in the back　　　　　　　　 B.　succeeded in setting many records

C.　tried every sports event but failed　 D.　had to give up some events

67.　Owens got his other name "Jesse" when.

A.　he went to Ohio State University　　

B.　his teacher made fun of him

C.　his teacher took "J. C."for "Jesse"

D.　he won gold medals in the Big Ten meet

66. Which of the following is wrong?

　 A. Curarpikt was created by a Japanese cartoonist.

B. Shi Jia’s parents were in favor of her performance.

C. Shi Jia cosplayed Curarpikt successfully.

D. Cosplay is popular with some teenagers.

D

James Cleveland Owens was the son of a farmer and the grandson of black slaves. His family moved to Cleveland when he was 9.There,　 a school teacher asked the youth his name.

"J.C., "he replied.

She thought he had said "Jesse", and he had a new name.

Owens ran his first race at age 13.After high school, he went to Ohio State University.He had to work part time so as to pay for his education.As a second?　 year student,　 in the Big Ten games in 1935, he set even more records than he would in the Olympic Games a year later.

A week before the Big Ten meet,　 Owens accidentally fell down a flight of stairs. His back hurt so much that he could not exercise all week,　 and he had to be helped in and out of the car that drove him to the meet. He refused to listen to the suggestions that he give up and said he would try,　 event by event. He did try,　 and the results are in the record book.

The stage was set for Owens? victory at the Olympic Games　 in Berlin the next year,　 and his success would come to be regarded as not only athletic but also political.Hitler did not congratulate any of the African?American winners.

"It was all right with me, "he said years later."I didn?t go to Berlin to shake hands with him, anyway."

Having returned from Berlin,　 he received no telephone calls from the president of his own country,　 either.In fact, he was not honored by the United States until 1976, four years before his death.

Owens? Olympic victories　 made little difference to him. He earned his living by looking after a school playground, and accepted money to race against cars, trucks,　 motorcycles and dogs.

"Sure, it bothered me, "he said later."But at least it was an honest living. I had to eat."

In time,　 however,　 his gold medals changed his life."They have kept me alive over the years, "he once said."Time has stood still for me.That golden moment dies hard."

65. The underlined word "distract" means_____.

　 A. get rid of　　 　　 B. keep out of　

C. give courage to　 D. draw away attention of