职称英语 - 理工类

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根据材料，回答题。 "Salty" Rice Plant Boosts Harvests British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more. Tim Flowers and Tony Yeo， from Sussex University"s School of Biological Sciences， have spent several years researching how crops， such as rice， could be made to grow in water that has become salty. The pair have recently begun a three-year programme， funded by the Biotechnology and Bio logical Sciences Research Council， to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops， starting with rice. It is estimated that each year more than 10m hectares （公顷） of agricultural land are lost because salt gets into the soil and stunts （妨碍生长）plants. The problem is caused by several factors. In the tropics， mangroves （红树林） that create swamps （沼泽） and traditionally formed barriers to sea water have been cut down. In the Mediterranean， a series of droughts have caused the water table to drop， allowing sea water to seep （渗透） in. In Latin America， irrigation often causes problems when water is evaporated （蒸发） by the heat， leaving salt deposits behind. Excess salt then enters the plants and prevents them functioning normally. Heavy concentra-tions of minerals in the plants stop them drawing up the water they need to survive. To overcome these problems， Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorB．in cells that do not affect the plants" growth. They have started to breed .these characteristics into a new rice crop， but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use. Once the characteristics for surviving salty soil are known， Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants. Land that has been abandoned to nature will then be able to bloom again， providing much needed food in the poorer countries of the world. Which of the following statements about Flowers and Yeo is true？查看材料

A. They are students at Sussex University.
B. They are rice breeders.
C. They are husband and wife.
D. They are colleagues"at an institution of higher learning.

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A. Computer programs allow spammers to send hundreds of millions of e-mails almost instantly。
B. This question is troubling for individuals and companies as well.
C. But now it seems that every time I check my e-mail， I have an endless series of adver-tisements and other correspondence that do not interest me at all.
D. Spammers should be fined， and perhaps Sent to prison if they continue to disturb people.
E. And their employees are thus unable to communicate effectively.
F. Spamming is more serious in China than in America.

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根据材料，回答题。 Motoring Technology 1.2 million road deaths worldwide occur each year， plus a further 50 million injuries. To reduce car crash rate， much research now is focused on safety and new fuels——though some electric vehicle and biofuel research aims at going faster. Travelling at ~peed has always been dangerous. One advanced area of research in motoring safety is the use of digital in-car assistants. They can ensure you don"t miss important road signs or .fall asleep. Most crashes result from human and not mechanical faults. Some safety developments aim to improve your vision. Radar can spot obstacles in fog， while other technology "sees through" big vehicles blocking your view. And improvements to seat belts， pedal（脚踏） Controls and tyres are making driving smoot-her and safer. The colour of a car has been found to be linked with safety， as have， less surpris-ingly， size and shape. ， But whatever is in the fuel tank， you don"t want a thief in the driving seat and there have been many innovations （创新）. Satellite tracking and remote communications can also come into play if you crash， automatically calling for help. Accidents cause many traffic jams， but there .are more subtle interplays between vehicles that can cause jams even on a clear but busy road. Such jams can be analyzed using statistical toolso Robotic drivers could be programmed to make traffic flow smoothly and will perhaps one day be everyone"s personal chauffeur （司机）， but their latest efforts suggest that won"t be soon. To reduce car crash rate， many scientists are working hard to 查看材料

A. design fully automatic cars
B. develop faster electric vehicles
C. analyze road deaths occurring worldwide each year
D. improve the safety of cars and develop new fuels

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A. weight
B. form
C. risk
D. work

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A. but
B. although
C. and
D. despite

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A. over
B. at
C. around
D. on

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She is ａhighly successful teacher.

A. fairly
B. rather
C. very
D. moderately

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What does the experiment lnentioned in paragraph 4 prove？

A. There are more enzymes in decaf drinkers" urine sample.
B. There are more melatonin concentrations in caffeine drinkers" urine sample.
C. Decaf drinkers produce less melatonin.
D. Caffeine drinkers produce less sleep hormone that decaf drinkers.

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A. If
B. Just
C. Only
D. Rarely

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根据下列材料，请回答题 Science and Technology There is a difference between science and technology. ___（46） Science has to do with discovering the facts and relationships between observable phenomena in nature and with establishing theories that serve to organize these facts and relationships; technology has to do with tools， techniques， and procedures for applying the findings of science. _ （47） Progress in science excludes the human factor. Scientists， who seek to understand the universe and know the truth within the highest degree of accuracy and certainty， cannot pay attention to their own or other peoples likes or dislikes or to popular ideas about the fitness of things. _ （48） But even an unpleasant truth is more than likely to be useful; besides， we have the choice of refusing to believe it! But hardly so with technology; we do not have the choice of refusing to hear the sound produced by a supersonic （超音速的） aircraft flying overhead; we cannot refuse to breathe polluted air. _ （49） The purpose of technology is to serve people-people in general， not merely some people; and future generations， not merely those who presently wish to gain advantage for themselves. _____ （50） Many people blame technology itself for widespread pollution， resource depletion （枯竭） and even social decay in general——so much so that the promise of technology is "obscured". That promise is a cleaner and healthier world. If wise applications of science and technology do not lead to a better world， what else will？ 回答（46）题查看材料

Another distinction between science and technology has to do with the progress in each.
B. Unlike science， progress in technology must be measured in terms of the human factor.
C. What scientists discover may shock or anger people——as did Darwin"s theory of evolution.
D. Science and technology are different.
E. We are all familiar with the improper use of technology.
F. Science is a method of answering theoretical questions ; technology is a method of solving practical problems.

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