考博英语-503
(总分100,考试时间90分钟)
Part Ⅰ Vocabulary
Section A
Directions: On your answer sheet, circle the answer that **pletes the ntence.
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1. The day was crisp and sharp, but suddenly a misty rain began to fall and ______ the landscape.
A. hid B. blurred
C. relieved D. belittled
2. ______**ing Thursday, it will be too late to enrol for the cour.
A. As of B. As for
C. As to D. As on
3. The speaker went on and on, ______ to his listeners' obvious boredom.
A. obligated B. obssive
C. obvious D. oblivious
4. Such ______ as lf-respect and industriousness merit the full backing of an employer.
A. advantages B. traits
C. interests D. **ings
5. ______popularity of subject matter and frequency of u, the books on the two middle shelves will be the most helpful to you.
A. As of B. As regards
C. As from D. As against
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6. ______ flees if one is constantly subjected to demeaning orders.
吃什么可以治痔疮A. Prime B. Harassment
C. Conceit D. Pride
7. Tho who let uncertainty ______ rarely achieve much.
A. turn them down B. nd them down
社保频道C. weigh them down D. huddle down
8. I was ______ in my reading, and didn't at first hear the doorbell ring.
A. immured B. immerd
C. busy D. infatuated
9. An intelligent TV viewer may occasionally become enraged by the ______ argumentation in commercials.
A. imperative B. fallacious
C. persuasive D. fabulous
10. The police inspector, having received new information from a confidential source, decided to enlarge the ______ of his enquiry.
A. scope B. magnitude
C. dimension D. volume
Section B
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Directions: On your answer sheet, circle the letter that is the clost synonym to the underlined word.
11. The play was hilarious!
A. a merry one B. a prudish one
C. date D. prodigious
12. Chaos theory stress the magnitude of the results produced by so small an event as the fluttering of a butterfly's wings.
A. size B. volume
C. result D. fame
13. Serial murderers rarely deviate from a certain type of prey.
A. attacker B. nourishment
C. victim D. enemy
14. He is constantly late, and ill-prepared when he does finally arrive. He is jeopardizing his future.
A. developing B. endangering
C. assuring D. destroying
15. The jungles of the sub-Sahara, afflicted with t-t and mosquitos, is an unhealthy are
A. A. requiring inoculation againstB. heated byC. flooded byD. plagued by
16. He covered the fish lavishly with sauce.
A. sparingly B. completely
C. generously D. simply太原景区
17. The Salk polio vaccine provides immunity from that dia.扫黄打非
A. curity B. publicity
C. liability D. help
18. The new guppies I bought have just a tinge of yellow.
A. dot B. mark
C. touch D. tingle乐理考试
19. Machiavelli cautions the prince not to relinquish power under passing duress.
A. gain B. hold
C. control D. abandon
20. The Smithsonian hous a miscellaneous collection of aircraft, artifacts, butterflies, stones [both precious **mon], and so on.
A. a heterogenous B. an overwhelming
C. a unified D. a vast
Part Ⅱ Reading Comprehension
Passage One
Thousands of years ago man ud handy rocks for his surgical operations. Later he ud sharp bone or horn, metal knives and more recently, rubber and plastic. And that was where we stuck, in surgical instrument terms, for many years. In the 1960s a new tool was developed, one which was, first of all, to be of great practical u to the armed forces and industry, but which was also, in time, to revolutionize the art and science of surgery.
The tool is the lar and it is being ud by more and more surgeons all over the world, for a very large number of **plaints. The word lar means: Light Amplification by Stimulated Emission of Light. As we all know, light is hot; any source of light ——from the sun itlf down to a humble match burning ——will give warmth. But light is usually spread out over a wide area. The light in a lar beam, however, is concentrated. This means that a light with no more power than that produced by an ordinary electric light bulb becomes intenly strong as it is concentrated to a pinpoint-sized beam.
Experiments with the pinpoint beams showed rearchers that different energy sources produce beams that have a particular effect on certain living cells. It is now possi
ble for eye surgeons to operate on the back of the human eye without harming the front of the eye, simply by passing a lar beam right through the eyeball. No knives, no stitches (刀口缝合), no unwanted damage ——a true surgical wonder.
