试卷详情
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职称英语理工类B级-22
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[单项选择]Silk, although it is considered a delicate fabric, is in fact very strong, but it is adversely affected by sunlight.
A. soft
B. sheer
C. fragile
D. refined
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[单项选择]Electric Backpack
Backpacks are convenient. They can hold your books, your lunch, and a change of clothes leaving your hands free to do other things. Someday, if you don’t mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone running, and maybe even light your way home.
Lawrence C. Rome and his colleagues from the University of Pennsylvania in Philadelphia and the Marine Biological Laboratory in WoodsHole, Mass. have invented a backpack that makes electricity from energy produced while its wearer walks. In military actions search-and-rescue operations and scientific field studies, people rely increasingly on cell phones global positioning system (GPS) receivers, night-vision goggles, and other battery powered devices to get around and do their work. The backpack’s electricity-generating feature could dramatically reduce the amount of a wearer’s load now devoted to spare batteries, report Ro
A. they can be very large
B. they can hold as many things as you want to carry
C. your hands are freed to do other things
D. you do not have to carry things with you
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[单项选择]Senator James Meeks has called off a boycott of Chicago Public Schools, organized to protest Illinois' education funding system.
A. reclaimed
B. proposed
C. indulged
D. canceled
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[单项选择]He does nothing that breaks the interests of the collective.
A. runs for
B. runs against
C. runs over
D. runs into
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[单项选择]Now about half of the women who work in social welfare are part-time, as compared to 38% in the private sector.
A. guarantee
B. farewell
C. well-off
D. well-being
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[填空题]
- A. the icebox
- B. the ice
- C. scientific answers
- D. the experiment
- E. the world
- F. water
When your child asks you questions, you should give her ______.
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[单项选择]It is anticipated that this contract will considerably increase sales over the next three years.
A. apparently
B. slightly
C. greatly
D. steadily
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[单项选择]The Americans recognize that the UN can be the channel for greater diplomatic activity.
A. place
B. medium
C. resort
D. tunnel
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[单项选择]In spite of a problem with the faulty equipment, some very useful work was accomplished.
A. imperfect
B. temporary
C. emergency
D. reinstalled
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[单项选择]The Northern Lights
The sun is stormy and has it own kind of weather. It is so hot and active that even the Sun’s gravity cannot hold its atmosphere in check! Energy flows away from the Sun toward the Earth in a stream of electrified particles that move at speeds around a million miles per hour. These particles are called plasma, and the stream of plasma coming from the Sun is called the solar wind. The more active the Sun, the stronger the solar wind.
The solar wind constantly streams toward the Earth, but don’t worry because a protective magnetic fields surrounds our planet. The same magnetic field that makes your compass point north also steers the particles from the Sun to the north and south poles. The charged particles become trapped in magnetic belts around the Earth. When a large blast of solar wind crashes into the Earth’s magnetic field first gets squeezed and then the magnetic field lines break and reconnect.
The brea
A. right
B. wrong
C. not mentioned
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[填空题]Guessable 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 f
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[单项选择]Invisibility Ring
Scientists can’t yet make an invisibility cloak like the one that Harry Potter uses. But, for the first time, they’ve constructed a simple cloaking device that makes itself and something placed inside it invisible to microwaves.
When a person "sees" an object, his or her eye senses many different waves of visible light as they bounce off the object. The eye and brain then work together to organize the sesensations and reconstruct the object’s original shape. So, to make an object invisible, scientists have to keep waves from bouncing off it. And they have to make sure the object casts no shadow. Otherwise, the absence of reflected light on one side would give the object away.
Invisibility isn’t possible yet with waves of light that the human eye can see. But it is now possible with microwaves. Like visible light, microwaves are a form of radiant energy. They are part of the electromagnetic spectrum, which also
A. can now make an invisible cloak of the same kind as he uses
B. try to make an invisible cloak of the same kind as he uses
C. try to invent a device similar in idea to the invisible cloak he uses
D. know that it is possible to make an invisible cloak of the same kind
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[填空题]
- A. What exactly is science
- B. How do you find an explanation
- C. What topics do you need
- D. How do you answer your child’s questions
- E. Where does your child study science
- F. How do you set up the experiment on salt and water
Paragraph 1 ______
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[单项选择]Nobody can help but be fascinated by the world into which he is taken by the science fiction.
A. impressed
B. amused
C. attracted
D. puzzled
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[单项选择]Before you decide on a vocation, it might be a good idea to consult a few good friends.
A. career
B. holiday
C. plan
D. research
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[单项选择]Without question, people's lives in China have improved dramatically in the past two decades.
A. Out of the question
B. No doubt
C. Naturally
D. Obviously
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[单项选择]When a man knows that he will be put into prison if he uses a potentially deadly object to rob or do harm to another person, he will think twice about it.
A. passive
B. lifelong
C. unhappy
D. fatal
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[单项选择]The growth of part-time and flexible working pattern allows more women to take advantage of job opportunities.
A. make use of
B. catch up with
C. cast light on
D. get rid of
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[单项选择]The temperatures are somewhat lower than the average temperature in May this year.
A. rather
B. very
C. a little
D. less
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[单项选择]Talks on climate change resumed in the German city of Bonn on July 16 to combat global warming.
A. focus on
B. settle down
C. fight against
D. sum up
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[单项选择]There are some things in the class the teachers will not put up with.
A. tolerate
B. contribute
C. resist
D. prohibit
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[单项选择]The Case of the Disappearing Fingerprints
One useful anti-cancer drug can effectively erase the whorls and other characteristic marks that give people their distinctive fingerprints. Losing (51) become troublesome. A case released online in a letter by Annals of Oncology indicates how big a (52) of losing fingerprints is.
Eng-Huat Tan, a Singapore-based medical doctor describes a 62-year old man who has used capecitabine to (53) his nasopharyngeal cancer. After three years on the (54) , the patient decided to visit U.S. relatives last December. But he was stopped by U.S customs officials (55) 4 hours after entering the country when those officials couldn’t get fingerprints from the man. There were no distinctive swirly (56) appearing from his index finger.
U.S. customs has been fingerprinting incoming foreign visitors for years, Tan says. Their index fingers are (57)
A. he
B. them
C. her
D. him
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[单项选择]The Issue of Package
Maybe everyone has such an experience that you have to unwrap several layers of packaging when you enjoy a piece of candy. But this overuse of wrapping is not confined to luxuries. It is becoming increasingly difficult to buy anything that is not done up in beautiful wrapping.
The package itself is of no interest to the shopper, who usually throws it away immediately. So why is it done Some of it, like the cellophane on meat, is necessary, but most of the rest is simply competitive selling. This is absurd. Packaging is using up scarce energy and resources and messing up the environment.
Recycling is already happening with milk bottles which are returned to the dairies, washed out, and refilled. But both glass and paper are being threatened by the growing use of plastic. More dairies are experimenting with plastic bottles.
The trouble with plastic is that it does not rot. Some environmentalists
A. more wrapping is needed for ordinary products
B. more wrapping is used for luxuries than for ordinary products
C. too much wrapping is used for both luxury and ordinary products
D. the wrapping used for luxury products is unnecessary