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发表于 2011-4-27 17:03:44
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第三篇 Cell Phones: Hang Up or Keep Talking?
Millions of people are using cell phones today. In many places it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication—having a mobile phone shows that they are cool and connected.
The explosions around the world in mobile phone use make some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, these has been a serious debates about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the tissues of the brain and head can be detected with modern scanning（扫描）equipment. In one case, a traveling salesman had to retire at a young age because of serious memory loss. He couldn’t remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer’s doctor didn’t agree.
What is it that make mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amount of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it’s best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it’s wise not to use your mobile phone too often.
题干：People buy cell phones for the following reasons EXCEPT that
答案：they're cheap.
题干：The word “detected” in paragraph 3 could be best replaced by
答案：discovered.
题干：The salesman retired young because
答案：he couldn’t remember simple tasks.
题干：On the safety issue of mobile phones, the manufacturing company
答案：hold that the amount of radiation is too small to worry about.
题干：The writer’s purpose of writing this article is to advise people
答案：to use mobile phones less often.
五、补全短文
Mt. Desert Island
The coast of the State of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the northernmost coastal city would measure about 225 miles. If you followed the coastline between these points, you would travel more than ten times as far. This irregularity is the result of what is called a drowned coastline. (46) At that time, the whole area that is now Maine was part of a mountain range that towered above the sea. As the glacier（冰川） descended, however, it expended enormous force on those mountains, and they sank into the sea.
As the mountain sank, ocean water charged over the lowest parts of the remaining land, forming a series of twisting inlets and lagoons（咸水湖）. The highest parts of the former mountain range, nearest the shore, remained as islands. (47) Marine fossils found here were 225 feet above sea level, indicating the level of the shoreline prior to the glacier.
The 2,500-mile-long rocky coastline of Maine keeps watch over nearly two thousand islands. Many of these islands are tiny and uninhabited, but many are home to thriving communities. Mt. Desert Island is one of the largest, most beautiful of the Maine coast islands. Measuring 16 miles by 12 miles, Mt. Desert was essentially formed as two distinct islands. (48)
For years, Mt. Desert Island, particularly its major settlement, Bar Harbor, afforded summer homes for the wealthy. Recently though, Bar Harbor has become a rapidly growing arts community as well. But, the best part of the island is the unspoiled forest land known as Acadia National Park. Because the island sits on the boundary line between the temperate（温带）and sub-Arctic zones, the island supports the plants and animals of both zones as well as beach, inland, and alpine（高山的）plants. (49) The establishment of Acadia National Park in 1916 means that this natural reserve will be perpetually available to all people, not just the wealthy. Visitors to Acadia may receive nature instruction from the park naturalists as well as enjoy camping, cycling, and boating. Or they may choose to spend time at the archeological museum, learning about the Stone Age inhabitants of the island.
The best view on Mt. Desert Island is from the top of Cadillac Mountain. (50) From the summit, you can gaze back toward the mainland or out over the Atlantic Ocean and contemplate the beauty created by a retreating glacier.
A. It also lies in a major bird migration lane and is a resting spot for many birds
B. Mt. Desert island is one of the most famous of all of the islands left behind by the glacier.
C. The wealthy residents of Mt. Desert Island selfishly keep it to themselves
D. The term comes from the activity of the ice age.
E. This mountain rises 1,532 feet, making it the highest mountain on the Atlantic seashore.
F. It is split almost in half by Sones Sond, a deep and narrow stretch of water seven miles long.
46. D. The term comes from the activity of the ice age.
47. B. Mt. Desert island is one of the most famous of all of the islands left behind by the glacier.
48. F. It is split almost in half by Sones Sond, a deep and narrow stretch of water seven miles long.
49. A. It also lies in a major bird migration lane and is a resting spot for many birds.
50. E: This mountain rises 1,532 feet, making it the highest mountain on the Atlantic seashore.
六、完形填空
Young Adults Who Exercise Get Higher IQ Scores（理工类教材完形填空部分第十五篇）
51. carried
52. involved
53. results
54. between
55. logical
56. role
57. capacity
58. strength
59. able
60.explain
61. improve
62. subject
63. if
64. with
65. likely |
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发表于 2011-4-27 17:03:33
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