Which of the following is true about the U. S. Navy underwater listening net work? 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 B. It has been replaced by a more advanced system· C. It became useless to the military after the cold war.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 a must in protecting endangered species. 答案 66.B 67.A 68.C 69.D 70.A Passage 19 (陕西省师大附中2009届高三第四次模拟考试A篇) Doctors say anger can be an extremely damaging emotion, unless you learn how to deal with it. They warn that anger can lead to heart disease, stomach problems, headaches, emotional problems and possibly cancer. Anger is a normal emotion that we all feel from time to time. Some people express anger openly in a calm reasonable way. Others burst with anger, and scream and yell. But other people keep their anger inside. They can not or will not express it. This is called repressing anger. For years many doctors thought that repressing anger was more dangerous to a person's health than expressing it. They said that when a person is angry, the brain releases the same hormones .They speed the heart rate, raise blood pressure, or sugar into the blood, etc.In general the person feels excited and ready to act. Some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger violently may be more likely to develop heart disease, and they believe that those who keep their anger inside may face a greater danger of high blood pressure. Doctors say the solution is learning how to deal with anger. They say the first step is to admit that you are angry and to recognize the real cause of the anger, then decide if the cause is serious enough to get angry about. If it is, they say, “Do not express your anger while angry. Wait until your anger has cooled down and you are able to express yourself calmly and reasonably. Doctors say that a good way to deal with anger is to find humor in the situation that has made you angry. They said that laughter is much healthier than anger. 查看更多

 

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It is hard to go after the blue whale, the ocean’s largest creature, which has almost been killed off by commercial whaling and is now listed as an endangered species. Attaching radio devices to it is difficult, and sightings with bare eyes are too unreliable to give real insight into its behavior.   

So biologists were delighted early this year when, with the help of the Navy, they were able to track a particular blue whale for 43 days, monitoring its sounds. This was possible because of the Navy’s formerly top-secret system of underwater detecting(探测)devices across the oceans.   

Tracking whales is but one example of an exciting new world just opening to civilian(平民的)scientists after the cold war as the Navy starts to share and partly uncover its global network of underwater listening system built over the decades to track the ships of potential(潜在的)enemies.   

Earth scientists announced at a news conference recently that they had used the system for closely monitoring a deep-sea volcanic eruption(爆发)for the first time and that they plan similar studies.   

Other scientists have proposed to use the network for tracking ocean currents and measuring changes in ocean and global temperatures.   

The speed of sound in water is roughly one mile a second-slower than through land but faster than through air. What is most important, different layers of ocean water can act as channels for sounds, focusing them in the same way a stethoscope(听诊器)does when it carries faint noises from a patient’s chest to a doctor’s ear. This focusing is the main reason that even relatively weak sounds in the ocean, especially low―frequency ones, can often travel thousands of miles.   

 

66. The passage is chiefly about           .   

A. an effort to protect an endangered sea species  

B. the civilian use of a military system  

C. the introduction of a U. S. Navy top-secret weapon  

D. a new way to look into the behavior of blue whales  

67. The underwater listening system was originally designed             .   

A. to detect and locate enemy boats  

B. to monitor deep―sea volcanic eruptions  

C. to study the movement of ocean currents  

D. to replace the global radio communications network  

68. What is the closest meaning of the underlined word “to track” in the second paragraph?  

A. to study                       B. to fight against  

C. to follow                        D. to try to kill  

69. 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 uses outsides. the military forces  

70. Which of the following is true about the U. S. Navy underwater listening net work?  

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 a must in protecting endangered species.   

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 (山东省兖州市2009届高三高考仿真考试C篇)

It is hard to go after the blue whale, the ocean’s largest creature, which has almost been killed off by commercial whaling and is now listed as an endangered species. Attaching radio devices to it is difficult, and sightings with bare eyes are too unreliable to give real insight into its behavior.  

So biologists were delighted early this year when, with the help of the Navy, they were able to track a particular blue whale for 43 days, monitoring its sounds. This was possible because of the Navy’s formerly top-secret system of underwater detecting(探测)devices across the oceans.  

Tracking whales is but one example of an exciting new world just opening to civilian(平民的)scientists after the cold war as the Navy starts to share and partly uncover its global network of underwater listening system built over the decades to track the ships of potential(潜在的)enemies.  

Earth scientists announced at a news conference recently that they had used the system for closely monitoring a deep-sea volcanic eruption(爆发)for the first time and that they plan similar studies.  

Other scientists have proposed to use the network for tracking ocean currents and measuring changes in ocean and global temperatures.  

The speed of sound in water is roughly one mile a second-slower than through land but faster than through air. What is most important, different layers of ocean water can act as channels for sounds, focusing them in the same way a stethoscope(听诊器)does when it carries faint noises from a patient’s chest to a doctor’s ear. This focusing is the main reason that even relatively weak sounds in the ocean, especially low—frequency ones, can often travel thousands of miles.  

66. The passage is chiefly about           .  

A. an effort to protect an endangered sea species

B. the civilian use of a military system

C. the introduction of a U. S. Navy top-secret weapon

D. a new way to look into the behavior of blue whales

67. The underwater listening system was originally designed             .  

A. to detect and locate enemy boats

B. to monitor deep—sea volcanic eruptions

C. to study the movement of ocean currents

D. to replace the global radio communications network

68. What is the closest meaning of the underlined word “to track” in the second paragraph?

A. to study                B. to fight against

C. to follow                 D. to try to kill

69. 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 uses outsides. the military forces

70. Which of the following is true about the U. S. Navy underwater listening net work?

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 a must in protecting endangered species.  

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