It is hard to track 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 visual sightings 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 listening devices spanning the oceans.
Tracking whales is but one example of an exciting new world just opening to civilian 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 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.
81. The passage is chiefly about ____ .
A. an effort to protect an endangered marine species
B. the civilian use of a military detection system
C. the exposure of a U.S. Navy top-secret weapon
D. a new way to look into the behavior of blue whales
82. The underwater listening system was originally designed ____ .
A. to trace and locate enemy vessels
B. to monitor deep-sea volcanic eruptions
C. to study the movement of ocean currents
D. to replace the global radio communications network
83. The deep-sea listening 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 travelling across different layers of water____
84. 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
85. 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.
第三部分：阅读(共20小题；每小题1.5分，满分30分)
阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Most people want to know how things are made. They honestly admit, however, that they hardly know a thing when it comes to understanding how a piece of music is made. Where a composer begins, how he manages to keep going – in fact, how and when he learns his trade – all are covered in complete darkness. The composer, in short, is a man of mystery.
One of the first things the common man wants to know about is the part inspiration（灵感）plays in a composer’s work. He finds it difficult to believe that composers are not much interested in that question. Writing music is as natural for the composer as eating or sleeping for all. Music is something that the composer happens to have been born for.
The composer, therefore, does not say to himself: “Do I feel inspired?” He says to himself: “Do I feel like working today?” And if he feels like working, he does. It is more or less like saying to himself: “Do I feel sleepy?” if you feel sleepy, you go to sleep. If you don’t feel sleepy, you stay up. If the composer doesn’t feel like working, he doesn’t work. It’s as simple as that.
66. What would be the best title for the text?
A. Composer: a man of mystery B. Practice makes good music
C. Relation between sleeping and music D. Music: product of nature
67. The words “covered in complete darkness” underlined in paragraph 1 most probably mean__________
A. difficult to be made B. without any light C. black in color D. not known
68. Most people seem to think that a composer________.
A. finds it difficult to write music B. considers it important to have a good rest
C. should like to talk about inspiration D. never asks himself very simple questions
69. The author will most probably agree that composers_________.
A. are born with a gift for music B. are people full of mystery
C. work late at night for their music D. know a lot about eating and sleeping
70. What does the passage mainly talk about?
A. How the music produces.
B. How secret the composer’s work.
C. Why the composer is so popular with people.
D. What the composer often thinks about.
第三节：语法填空（共10小题；每小题1.5分，满分15分）
阅读下面短文, 按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空, 并将答案填写在答题纸标号为56-65的相应位置上。
Do you know parents of high school students who come to the rescue whenever their son or daughter is ____56____ a tough situation? Have they tried to negotiate with the school for a different teacher or a better grade?
If so, they may be helicopter parents, ____57____are always prepared to rush to schools to rescue their children from any adversity(逆境). College admissions office began using this nickname a few years ago ___58____they noticed that parents were becoming___59___（increase）involved in the daily lives of their college-age children.
Actually, helicopter parents cause many problems__60__different stages of development. For example, __61___ can hinder(妨碍;阻碍) a child’s ability to develop his or her own motivation, self-confidence or sense of responsibility. ___62___should Johnny make the effort to remember his violin if he knows that Dad will bring it to school? Moreover, students who haven’t had the opportunity to smooth away their own obstacles（障碍）----whether social or academic----emerge(出现) from adolescence poorly___63__（equip）to handle the demands of college and adulthood.
___64__, I think it is wise to be mindful of the importance of teaching self-reliance and responsibility, and that requires letting children experience the life lessons and ___65___（consequent）of their actions.
第二节：完形填空（共15小题；每小题2分，满分30分）
阅读下面短文，掌握其大意，然后从41~55各题所给的四个选项（A、B、C和D）中，
选出最佳选项。
It was the afternoon of December 24, the day before Christmas, but I had to stay to tidy the office. The only thing that _41_ my day was the beautifully decorated Christmas tree in our waiting room and a _42_ sent to me by a fellow I was dating—a dozen long-stemmed red roses.
Suddenly, our receptionist came and said there was a lady outside that urgently needed to speak with me. As I stepped out, I noticed a young _43_ woman with a baby in her arms standing there. 44_ , she explained that her husband—a prisoner in a nearby prison—was my next patient. She told me she wasn’t allowed to visit her husband in prison and _45_ he had never seen his son. So she _46_ me to let her wait here ahead of time. I agreed. After all , it was Christmas Eve.
A short time later, her husband arrived—with chains on his feet, cuffs on his hands, and two armed guards _47_ him. The woman’s tired face _48_ when her husband took a seat beside her. I watched them laugh, cry, and share their _49_ . He seemed like a gentle and honest man.
At the end of the _50_ , the man had to go back and I wished him a Merry Christmas. He smiled and thanked me and said he felt saddened by the fact that he hadn’t been able to get his wife _51_ for Christmas. On hearing this, I was _52_ with a wonderful idea.
I’ll never forget the _53_ on both their faces as the prisoner gave his wife the beautiful, long-stemmed red roses. I’m not sure who _54_ the most joy—the husband in giving, the wife in receiving, or myself in having the opportunity to share in this _55_ moment.
41. A. enjoyed B. brightened C. relaxed D. presented
42. A. gift B. regards C. message D. package
43. A. ordinary-looking B. good-looking C. tired-looking D. frightened-looking
44. A. Happily B. Quietly C. Excitedly D. Nervously
45. A. why B. how C. that D. when
46. A. persuaded B. demanded C. begged D. pleased
47. A. near B. around C. behind D. before
48. A. turned pale B. went red C. lit up D. turned away
49. A. child B. tears C. joy D. sorrows
50. A. meeting B. appointment C. discussion D. conversation
51. A. something B. nothing C. anything D. everything
52. A. encouraged B. struck C. provided D. inspired
53. A. sadness B. happiness C. look D. smiles
54. A. experienced B. received C. gave D. accepted
55. A. unforgettable B. sad C. happy D. special
On Sundays, there were lots of children in the park, ________parents sitting together joking.
|
A．their |
B．whose |
C．which |
D．that |
David is such a good boy ________all the teachers like him.
|
A．like |
B．that |
C．which |
D．as |
