网址:http://m.1010jiajiao.com/timu3_id_2949456[举报]
![]()
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
查看习题详情和答案>>
III 阅读(共两节,满分40分)
第一节 阅读理解(共15小题;每小题2分,满分30分)
You must have been troubled by when to say "I love you" because it is one of the greatest puzzles in our life.
What if you say it first and your partner doesn’t love you back? Or if they do say it but you don’t feel they mean it? Being the first to declare your love can be never racking (紧张) and risky and can leave you feeling as vulnerable as a turtle with no shell. But is the person who says it first really in a position of weakness? Doesn’t it pay to hold back, play it cool and wait until the other half has shown their hand faster?
“A really good relationship should be about being fair and being equal,” says psychologist Sidney Crown. “But love is seldom equal.” “All relationships go through power struggles but,” he says, “if a love imbalance continues for years, the rot will set in.” That feeling of “I’ve always loved you more” may be subverted (颠覆,破坏) for a time, but it never goes away completely and it often emerges in squabbling (大声争吵). In love, at least, the silent, withholding type is not always the most powerful. “The strongest one in a relationship is often the person who feels confident enough to talk about their feelings,” says educational psychologist Ingrid Collins. Psychosexual therapist Paula Hall agrees. "The one with the upper hand is often the person who takes the initiative.” In fact, the person who says “I love you” first may also be the one who says “I’m bored with you’ first.” Hall believes that much depends on how "I love you" is said and the motivation of the person saying it. Is it said when they’re drunk? Is it said before their partner flies off on holiday, and what it really means is “Please don’ t be unfaithful to me” ? By saying “I love you”, they are really saying “Do you love me?” If so, wouldn’t it just be more honest to say that. Collins agrees that intention is everything. "It’s not what is said, but how it’s said. What it comes down to is the sincerity of the speaker.”
41. What is the main idea of this passage?
A. The importance of "I love you" B. The meaning of "I love you"
C. The time of saying "I love you". D. The place of saying "I love you"
42. In the first sentence the author means that____________.
A. it is easy to say "I love you"
B. it is hard to say "I love you"
C. we have many troubles in our life
D. people usually do not know when to say "I love you"
43. According to the expert, a good relationship should be _____________.
A. fair and equal B. fair and kind
C. powerful and equal D. confident and fair
44. In the third paragraph, the phrase "with the upper hand" means __________.
A. being low in spirit B. having only one hand
C. being active D. being passive
45. What is the most important for you to consider when somebody say "I love you" to you?
A. The intention. B. The place. C. The time. D. The determination.
查看习题详情和答案>>
Put the books back ________ they belong after you have finished them.
A. where B. to where
C. to which D. to the place
查看习题详情和答案>>
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||