第1部分：詞匯選項(xiàng)(第1～15題，每題1分，共15分)

　　下面每個(gè)句子中均有1個(gè)詞或短語(yǔ)劃有底橫線，請(qǐng)為每處劃線部分確定1個(gè)意義最為接近的選項(xiàng)。

　　1. She exhibited great powers of endurance during the climb.

　　A. play

　　B. send

　　C. show

　　D. tell

　　2. The eternal motion of the stars fascinated him.

　　A. long

　　B. never-ending

　　C. boring

　　D. extensive

　　3. She could not answer, it was an immense load off her heart.

　　A. natural

　　B. fatal

　　C. tiny

　　D. enormous

　　4. The book made a great impact on its readers.

　　A. force

　　B. influence

　　C. surprise

　　D. power

　　5. Accompanied by cheerful music, we began to dance.

　　A. pleasant

　　B. colorful

　　C. fashionable

　　D. different

　　6. He was not eligible for the examination because he was over age.

　　A. competitive

　　B. diligent

　　C. qualified

　　D. competent.

　　7. Her novel depicts an ambitious Chinese.

　　A. writes

　　B. sketches

　　C. describes

　　D. indicates

　　8. Don't irritate her, she's on a short fuse today.

　　A. tease

　　B. attract

　　C. annoy

　　D. protect

　　9. It is absurd to go out in such terrible weather.

　　A. ridiculous

　　B. funny

　　C. odd

　　D. interesting

　　10. I notified him that my address had changed.

　　A. informed

　　B. observed

　　C. mocked

　　D. misled

　　11. The manager allocate duties to the clerks.

　　A. assign

　　B. persuade

　　C. ask

　　D. order

　　12. The once barren hillsides are now good farmland.

　　A. hairless

　　B. bare

　　C. empty

　　D. bald

　　13. It is postulated that a cure for the disease will have been found by the year 2000.

　　A. challenged

　　B. assumed

　　C. deducted

　　D. decreed

　　14. We must abide by the rules.

　　A. stick to

　　B. persist in

　　C. safeguard

　　D. apply

　　15. From my standpoint, you know, this thing is just funny.

　　A. position

　　B. point of view

　　C. knowledge

　　D. opinion

　　Eruptions of Mount Saint Helena

　　On March 27, the US Government scientists made a decision after they predicted the eruption of Mount Saint Helens; they telephoned all states and local officials in the area and told them that a serious eruption was possible at any time. Roads were closed to every one except scientists and forest keepers struggled to keep curious visitors away from the mountain.

　　Shortly after noon on March 27, Mount Saint Helens erupted for the first time in 123 years. People living north of the mountain heard a loud boom that shook their windows, and airline pilots flying near the volcano soon afterwards described a thick black column of ash and steam shooting more than 2,100 meters into the sky.

　　Later, scientists found that the explosion had made a new crater (大坑) in the top of the mountain, not far from the old crater. The north side of the peak now had a huge bulge (凸出部分) where rock and ice had been pushed out by the eruption:

　　A second eruption shook the mountain on March 28. It, too, sent up a column of black ash high into the sky. By March 29, scientists flying over the mountain saw that a second crater formed about 9 meters from the first one. Strange blue flames flickered (閃爍) inside the crater and sometimes jumped from one crater to the other.

　　By April 1 the mountain had erupted several more times and the snow on the north slope of the peak was black with ash. Ash carried by the wind had fallen on towns as far as 240 kilometers away from Mount Saint Helens.

　　During the first week of April, Mount Saint Helens gave scientists something new to worry about: harmonic tremors (震動(dòng)) recorded by scientists showed a big eruption would happen. All during April and into May Mount Saint Helens continued to shudder (震動(dòng)) and shoot out ash. By April 8, the two craters had merged to form a vast hole nearly a half of a kilometer wide and 250 meters deep.

　　Scientists' main worry during this time was the growing bulge of rock and ice on the north face of the mountain. By May 7 scientists feared the worst. Their warnings led Washington Governor to set up safety zones around the mountain. The inner "red" zone was open to scientists only. The outer "blue" zone was open only to people who got special permits. But in spite of these warnings, some people got past the road barriers and risked their lives trying to get close to the volcano.

　　16 American scientists predicted that Mount Saint Helens was to erupt soon.

　　A Right B Wrong C Not mentioned

　　17 Pilots flying at the height of more than 2,100 meters saw a thick black column of ash and steam shooting up into the air from the crater.

　　A Right B Wrong C Not mentioned

　　18 A new crater, which was to the south of the old one, was formed after the second eruption.

　　A Right B Wrong C Not mentioned

　　19 The quakes recorded during the first week of April in the area of Mount Saint Helens warned scientists of a new eruption.

　　A Right B Wrong C Not mentioned

　　20 Two scientists lost their lives during the second eruption of Mount Saint Helens.

　　A Right B Wrong C Not mentioned

　　21 Most of the dreadful eruptions of Mount Saint Helens took place in early May.

　　A Right B Wrong C Not mentioned

　　22 The eruption of Mount Saint Helens attracted a large number of foreign tourists.

　　A Right B Wrong C Not mentioned

　　參考答案16. A17. B18. B19. A20. C21. B22. C

　　Air Transportation

　　Airplanes are used to carry passengers, cargo and mail. Air transport companies operate scheduled airlines and non-scheduled services over local, regional, national, and international routes. The aircraft operated by these companies range from small single-engine planes to large multiengine jet transports.

　　The first air passenger services began in 1910, when dirigibles began operation between several German cities. The first scheduled airplane service to carry passengers began in the U.S in 1914. Several experimental airmail flights took place in India, Europe, and the United States before World War I, but air transport service did not become a true business until after the war.

　　During World War Two, intercontinental air transport became firmly established. After the war the new long-distance transports with advanced facilities were increasingly able to avoid storms and strong wind and make flights more economical and consistent. A new generation of "jumbo-jet" transports began operations in 1970, and the supersonic transport entered passenger service in 1976.

　　During the 1970s the number of domestic passengers on U.S airlines increased about 78%, and during the 1980s the figure was up about 58%. In 1990 there were 41.8 million international passengers, the figure was a 75% increase over 1980. The total cargo flown by U.S airlines almost doubled during the 1980s, from 5.7 billion to 10.6 billion ton-miles in 1990.

　　Major airports provide a wide range of facilities for the convenience of millions of travelers. These range from such basic services as ticket-sales counters and restaurants to luxury hotels, shopping centers and play areas for children. International airports must also have customs areas and currency-exchange counters and so on.

　　EXERCISE:

　　1. Paragraph 2 _____.

　　2. Paragraph 3 _____.

　　3. Paragraph 4 _____.

　　4. Paragraph 5 _____.

　　A Airport services

　　B Training of pilots

　　C Beginning period

　　D Rapid growth in the U.S.

　　E Development

　　F Competition

　　5. Air transport companies use different plans ____.

　　6. The United States was the country where ____.

　　7. The forty years from the 1930s to the 1970s was an important period ___.

　　8. Nowadays airports provide all kinds of services ____.

　　A in the development of air transportation

　　B the earliest passenger flights were successfully operated

　　C to make travel easy and pleasant for the passengers

　　D to provide different services

　　E the shortage of qualified pilots

　　F traveling by air was very cheap

　　KEY: C E D A D B A C

　　Where Have All the Frogs Gone?

　　In the 1980s, scientists around the world began to notice something strange: Frogs were disappearing. More recent research has shown that many kinds of amphibians (兩棲動(dòng)物) are declining or have become extinct. They have been around for a long time - over 350 million years. Why are they dying out now?

　　Scientists are seriously concerned about this question. First of all, amphibians are an important source of scientific and medical knowledge. By studying amphibians, scientists have learned about new substances that could be very useful for treating human diseases. Further research could lead to many more discoveries, but that will be impossible if the amphibians disappear.

　　The most serious aspect of amphibian loss, however, goes beyond the amphibians themselves. Scientists are beginning to think about what amphibian decline means for the planet as a whole. If the earth is becoming unlivable for amphibians, is it also becoming unlivable for other kinds of animals and human beings as well?

　　Scientists now believe that amphibian decline is due to several environmental factors. One of these factors is the destruction of habitat, the natural area where an animal lives. Amphibians are very sensitive to changes in their habitat. If they cannot find the right conditions, they will not lay their eggs. These days, as wild areas are covered with houses, roads, farms, or factories, many kinds of amphibians are no longer laying eggs. For example, the arroyo toad (蟾蜍) of southern California will only lay its eggs on the sandy bottom of a slow-moving stream. There are very few streams left in southern California, and those streams are often muddy because of building projects. Not surprisingly, the arroyo toad is now in danger of extinction.

　　There are a number of other factors in amphibian decline. Pollution is one of them. In many industrial areas, air pollution has poisoned the rain, which then falls on ponds and kills the frogs and toads that live there. In farming areas, the heavy use of chemicals on crops has also killed off amphibians. Another factor is that air pollution has led to increased levels of ultraviolet (UV) light. This endangers amphibians, which seem to be especially sensitive to UV light. And finally, scientists have discovered a new disease that seems to be killing many species of amphibians in different parts of the world.

　　All these reasons for the disappearance of amphibians are also good reasons for more general concern. The destruction of land, the pollution of the air and the water, the changes in our atmosphere, the spread of diseases - these factors affect human beings, too. Amphibians are especially sensitive to environmental change. Perhaps they are like the canary (金絲雀) bird that coal miners once used to take down into the mines to detect poisonous gases. When the canary became ill or died, the miners knew that dangerous gases were near and their own lives were in danger.

　　36 Losing amphibians means losing

　　A knowledge about fatal human diseases.

　　B knowledge about air and water pollution.

　　C a chance to discover new medicines.

　　D an opportunity to detect poisonous gases.

　　37 Amphibians lay their eggs

　　A in any stream they can find,

　　B in places without UV light,

　　C only on sand.

　　D only in the right conditions

　　38 The arroyo toad is disappearing because

　　A it has been threatened by frogs.

　　B it is losing its habitat.

　　C a disease has been killing its eggs.

　　D it can't bear the cold of winter.

　　39 Coal miners once used the canary bird to detect

　　A poisonous gases.

　　B air pollution.

　　C water leakage.

　　D radiation.

　　40 Scientists think that the decline of amphibians could

　　A cause environmental change.

　　B cause a decline in other kinds of animals.

　　C be a warning signal for human beings.

　　D be a good sign for human beings.

　　參考答案：36 C 37 D 38 B 39 A 40 C
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　　Don't rely on plankton to save the planet

　　Encouraging plankton growth in the ocean has been touted by some as a promising way to remove carbon dioxide from the atmosphere. ___1___.

　　Adding iron to patched of ocean can make plankton bloom temporarily. The microscopic organisms suck up dissolved carbon dioxide from the water，which in turn is replaced by carbon dioxide from the air. ___2___.

　　Jorge Sarmiento from Princeton and his colleagues developed a complex computer model to analyze how factors such as ocean chemistry and water circulation would affect the process if 160，000 square kilometers of ocean were seeded with iron for a month. ___3__.

　　In their scenario, which covers an area 10 times as big as the largest experiment of this kind ever proposed, fertilizing the ocean removes 1 million tons of carbon from the atmosphere- just 0.2 percent of the carbon dioxide humankind spews out each month.

　　Rough estimates in the past have predicted similarly disappointing results. __4__ Says Sallie Chisholm，an environmental engineer from the Massachusetts Institute of Technology. “But the take-home message is the same. ___5___.”

　　A. Its opponents argue, however, that it will stop global warming.

　　B. Its opponents fear that will damage the marine ecosystem, and now a computer model shows that the trick would also be remarkably inefficient.

　　C. As plankton die and settle on the ocean floor, their carbon is supposedly locked up in the seabed.

　　D. They found that 100 years later only between 2 and 11 percent of the extra carbon that was originally taken up plankton had actually been removed from the atmosphere.

　　E. “These are newer and better models,"

　　F. Ocean fertilization is not the answer to global warming.

　　參考答案：B、 C 、D、 E 、F
　　Biological Identification Technologies

　　When a person walks，the movement of his head，trunk，and limbs(肢體)are a reflected in changes in his body.A computer stores these database(數(shù)據(jù)庫(kù)).Later，the computer can accurately to these changes.This is a new biological identification quickly identify an examinee without disturbing him.

　　Eve body’S voice is_______(51)into a_______(52)him according________(53)and it can_________(54).When a person’S voice is recorded by an instrument，his voice frequency spectrum(頻譜)is called sound print fingerprint，eye.body’S sound print is different.How can a computer his sound? First，his voice is recorded_________(55)a fingerprint, everybody’s sound print is different. How can a computer________(56)his sound? First, his voice is recorded,________(57)allows the computer to become familiar with his voice.It will then turn his sound characteristics into a series of digits(數(shù)字).These are the _________(58)on which the computer can distinguish his voice from another's.

　　We often bring ID cards，work cards，or driving licenses with US to _________(59)our identity.If all these cards are forgotten or lost，how can we prove whom we are? in________(60)，it's not difficult to prove whom you are________(61)your body itself has identifying markers.Some are physiological(生理的)features，such as fingerprints，一sounds，facial(面部的)types and eye color.The computer can________(62)to identify you.Suppose your features have already been________(63)in the database.To identify you.we have to take your picture with a camera and send it to a computer for________(64).First，the computer needs to reposition this picture according to the position of your eyes，and then starts to read the ________(65)of your physiological features such as the ratio of your pupil to the whites of your eyes and the shape of your nose.Next，it seeks matching records from the database.Finally, it makes a decision.

　　51. A parts B changes C positions D directions

　　52. A identify B inform C affect D bother

　　53. A number B card C level D method

　　54. A soft B loud C unique D clear

　　55. A With B Like C For D As

　　56. A distinguish B make C gather D develop

　　57. A who B where C that D which

　　58. A reasons B causes C basis D origin

　　59. A prove B create C hide D protect

　　60. A all B fact C summary D casewww.

　　61. A unless B though C so D because

　　62. A stop B help C mean D continue

　　63. A stored B borrowed C searched D linked

　　64. A printing B researching C processing D filing

　　65. A point B picture C size D message