第五部分：补全短文(第46～50题，每题2分，共10分)
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Looking to the Future
When a magazine for high-school students asked its readers what life would be like in twenty years, they said: Machines would be run by solar power. Buildings would rotate so they could follow the sun to take maximum advantage of its light and heat. Walls would “radiate light” and “change color with the push of a button.” Food would be replaced by pills. School would be taught “by electrical impulse while we sleep.” Cars would have radar. Does this sound like the year 2000? Actually, 46 and the question was, “what will life be like in 1978?”
The future is much too important to simply guess about, the way the high school students did, so experts are regularly asked to predict accurately. By carefully studying the present skilled businessmen, scientists, and politicians are supposedly able to figure out in advance what will happen. But can they? One expert on cities wrote: 47, but would have space for farms and fields. People would travel to work in “airbuses”, large all-weather helicopters carrying up to 200 passengers. When a person left the airbus station he could drive a coin-operated car equipped with radar. The radar equipment of cars would make traffic accidents “almost unheard of”. Does that sound familiar? If the expert had been accurate it would, because he was writing in 1957. His subject was “The city of 1982.”
If the professionals sometimes sound like high-school students, it's probably because 48 But economic forecasting, or predicting what the economy will do, has been around for a long time. It should be accurate, and generally it is. But there have been some big mistakes in this field, too. In early 1929, most forecasters saw an excellent future for the stock market. In October of that year, 49, ruining thousands of investors who had put their faith in financial foreseers.
One forecaster knew that predictions about the future would always be subject to significant errors. In 1957, H. J. Rand of the Rand Corporation was asked about the year 2000, “Only one thing is certain,” he answered. “Children born today 50.”
A the stock market had its worst losses ever
B will have reached the age of 43
C the article was written in 1958
D Cities of the future would not be crowded
E the prediction of the future is generally accurate
F future study is still a new field
第六部分：完型填空(第51～65题，每题1分，共15分)
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Wonder Webs
Spider webs are more than homes, and they are ingenious traps. And the world's best webspinner may be the Goldern Orb Weaver spider. The female Orb Weaver spins a web of fibers thin enough to be invisible to insect prey, yet 51 enough to snare a flying bird without breaking.
The secret of the web's strength? A type of super-resilient 52 called dragline. When the female spider is ready to 53 the web's spokes and frame, she uses her legs to draw the airy thread out through a hollow nozzle in her belly. Dragline is not sticky, so the spider can race back and forth along 54 to spin the web's trademark spiral.
Unlike some spiders that weave a new web every day, a Golden Orb Weaver 55 her handiwork until it falls apart, sometimes not for two yearsl. The silky thread is five times stronger than steel by weight and absorbs the force of an impact three times better than Kevlar, a high-strength human-made 56 used in bullet-proof vests. And thanks to its high tensile strength, or the ability to resist breaking under the pulling force called tension, a single strand can stretch up to 40 percent longer than its original 57 and snap back as well as well as new. No human-made fiber even comes 58
It is no 59 manufacturers are clamoring for spider silk. In the consumer pipeline: high-performance fabrics for athletes and stockings that never run. Think parachute cords and suspension bridge cables. A steady 60 of spider silk would be worth billions of dollars-but how to produce it? Harvesting silk on spider farms does not 61 because the territorial arthropods have a tendency to devour their neighbors.
Now, scientists at the biotechnology Nexia are apinning artificial silk modeled after Goldern orb dragline. The 62 step: extract silk-making genes from the spiders. Next, implant the genes into goat egg cells. The nanny goats that grown from the eggs secrete dragline silk proteins in their 63 "The young goats pass on the silk-making gene without 64 help from us," says Nexia president Jeffrey Turner. Nexia is still perfecting the spinning process, but they hope artificial spider silk will soon be snagging customers 65 the real thing snags bugs.
51
A tough
B soft
C large
D smooth
52
A cloth
B silk
C nylon
D wool
53
A repair
B pull
C move
D weave
54
A him
B her
C it
D those
55
A refixes
B reproduces
C remakes
D reuses
56
A metal
B mass
C material
D model
57
A bredth
B length
C height
D strength
58
A close
B well
C open
D awake
59
A hurry
B worry
C wonder
D use
60
A shipment
B supply
C run
D exchange
61
A run
B go
C deal
D work
62
A previous
B foremost
C first
D front
63
A milk
B meat
C lungs
D muscle
64
A no
B any
C some
D many
65
A as fast as
B as gently as
C as fully as
D as little as
