ening system makes use of ________.
A) the sophisticated technology of focusing sounds under water
B) the capability of sound to travel at high speed
C) the unique property of layers of ocean water in transmitting sound
D) low-frequency sounds traveling across different layers of water
34. It can be inferred from the passage that ________.
A) new radio devices should be developed for tracking the endangered blue whales
B) blue whales are no longer endangered with the use of the new listening system
C) opinions differ as to whether civilian scientists should be allowed to use military technology
D) military technology has great potential in civilian use
35. Which of the following is true about the U.S. Navy underwater listening network?
A) It is now partly accessible to civilian scientists.
B) It has been replaced by a more advanced system.
C) It became useless to the military after the cold war.
D) It is indispensable in protecting endangered species.
Passage Four
Questions 36 to 40 are based on the following passage:
The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise (有氧操). Millions of individuals became engaged in a variety of aerobic activities, and literally thousands of health spas developed around the country to capitalize (获利) on this emerging interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed prior to this aerobic fitness movement, even a national chain with spas in most major cities. However, their focus was not on aerobics, but rather on weight-training programs designed to develop muscular mass, strength, and endurance in their primarily male enthusiasts. These fitness spas did not seem to benefit financially form the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs offered few, if any, health benefits. In recent years, however, weight training has again become increasingly popular for males and for females. Many current programs focus not only on developing muscular strength and endurance but on aerobic fitness as well.
Historically, most physical-fitness tests have usually included measures of muscular strength and endurance, not for health-related reasons, but primarily because such fitness components have been related to performance in athletics. However, in recent years, evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health benefits as well. The American College of Sports Medicine now recommends that weight training be part of a total fitness program for healthy Americans. Increased participation in such training is one of the specific physical activity and fitness objectives of Healthy People 2000: National Health Promotion and Disease Prevention Objectives.
36. The word "spas" (Line 3, Para. 1) most probably refers to _________.
A) sports activities
B) places for physical exercise
C) recreation centers
D) athletic training programs
37. Early fitness spas were intended mainly for __________.
A) the promotion of aerobic exercise
B) endurance and muscular development
C) the improvement of women's figures
D) better performance in aerobic dancing
38. What was the attitude of doctors towards weight training in health improvement?
A) Positive.
B) Indifferent.
C) Negative.
D) Cautious.
39. People were given physical fitness tests in order to find out ________.
A) how ell they could do in athletics
B) what their health condition was like
C) what kind of fitness center was suitable for them
D) whether they were fit for aerobic exercise
40. Recent studies have suggested that weight training __________.
A) has become an essential part of people's life
B) may well affect the health of the trainees
C) will attract more people in the days to come
D) contributes to health improvement as well
Part III Vocabulary and Structure (20 minutes)
Directions: There are 3.0. incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
41. You would be ______ a risk to let your child go to school by himself.
A) omitting B) attaching
C) affording D) running
42. He is always here; it's ______ you've never met him.
A) unique B) strange
C) rare D) peculiar
43. There has been a great increas
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