题目内容

His new idea is not only in the battery’s size, but also in its semiconductor (半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.

“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure (晶格结构) of the solid semiconductor,” Kwon said. “By using a liquid semiconductor, we believe we can minimize that problem.”

Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.

61. Which of the following is TRUE of Jae Kwon?

A. He teaches chemistry at MU.　　　　　　　　　

B. He developed a chemical battery.

C. He is working on a nuclear energy source.

D. He made a breakthrough in computer engineering.

62. Jae Kwon gave examples in Paragraph 4 ______.

A. to show chemical batteries are widely applied

B. to indicate nuclear batteries can be safely used

C. to describe a nuclear-powered system

D. to introduce various energy sources

63. Liquid semiconductor is used to ______.

A. get rid of the radioactive waste

B. test the power of nuclear batteries

C. decrease the size of nuclear batteries

D. reduce the damage to lattice structure

64. According to Jae Kwon, his nuclear battery ______.

A. uses a solid semiconductor　　　　　　　　　　　　　　 B. will soon replace the present ones

C. could be extremely thin　　　　　　　　　　　　　　　　　 D. has passed the final test

65. The text is most probably a ______.

A. science news report　　　　　　　　　　　　　　　　　　　 B. book review　　　　　　

C. newspaper ad　　　　　　　　　　　　　　　　　　　　　　　 D. science fiction story

CBDCA

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1．Jerry just lost his motorbike five days ago, so he has to put up an advertisement in the newspaper to find it．His motorbike is very important to him．

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3．Stephen and Smith will marry in two months．This happy couple will announce their marriage in the newspaper to the public and expect their relations to congratulate them．

4．People's Daily actually wants to enroll new hands．With the development of its business, it will find more new staff in the job fair or the labor market．

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As Christmas is coming, there are presents to be bought, cards to be sent, and rooms to be cleaned. Parents are ___36___ with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real ___37___. On Christmas Eve, young children find the excitement almost unbearable. They are torn between the wish to go to bed early so that Father Christmas will bring their presents quickly and the wish to ___38___ up late so that they will not ___39____ the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie ___40___ for a long time, hoping to get a short ___41___ at Father Christmas.
Last Christmas, my wife and I ___42___ hid a few large presents in the storeroom. I ___43___ the moment when my son, Jimmy, would ___44___ me where that new bike had come from, but ___45___ he did not see it.
On Christmas Eve, ___46___ took the children hours to go to sleep. It must have been nearly___47___ when my wife and I went quietly into their room and began ___48___ stockings. Then I pushed in the ___49____ I bought for Jimmy and left it beside the Christmas tree. We knew we would not get much sleep that night, for the children were ___50___ to get up early. At about five o’clock the next morning, we were ___51___ by loud sounds coming from the children’s room — they were shouting excitedly! ___52_____ I had time to get out of bed, young Jimmy came riding into the room on his new bike, and his sister, Mary, followed close behind pushing her new baby carriage. ____53_____ the baby arrived. He moved ___54____ the hands and knees into the room dragging a large balloon behind him. Suddenly it burst. That woke us up ___55___. The day had really begun with a band(巨响) !

As Christmas is coming, there are presents to be bought, cards to be sent, and rooms to be cleaned. Parents are faced with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real    11 . On the Christmas Eve, young children find the excitement almost unbearable. They are torn between the wish to go to bed early so that Father Christmas will bring them presents quickly and the wish to   12  up late so that they will not   13  the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie   14  for a long time, hoping to get a short look at Father Christmas.
Last Christmas, my wife and I   15  hid a few large presents in the storeroom. I   16  the moment when my son, Jimmy, would ask me where that new bike had come from, but fortunately he did not see it.
On Christmas Eve,   17   took the children hours to go to sleep. It must have been nearly   18  when my wife and I went quietly into their room and began   19  stockings. Then I pushed in the   20  I bought for Jimmy and left it beside the Christmas tree. We knew we would not get much sleep that night, for the children were   21  to get up early. At about five o’clock the next morning, we were   22  by loud sounds coming from the children’s room—they were shouting excitedly!   23   I had time to get out of bed, young Jimmy came riding into the room on his new bike, and his sister, Mary, followed close behind pushing her new baby carriage.   24  the baby arrived. He moved on the hands and knees into the room dragging a large balloon. We were woken up   25  by them at this time.