职称英语考试理工类b级历年考试真题及答案(编辑修改稿)

职称英语考试理工类b级历年考试真题及答案(编辑修改稿)内容摘要：

ountered. Bogue says that he had “ a fortable amount of time” to fasten his seatbelt. The researchers are planning to improve the lidar’s range with a more powerful beam. The system could be installed on mercial aircraft in the next few years. 36. What does “c learair turbulence” probably mean? (Paragraph 1) A A not very rough storm. B Unexpected disturbed air. C A kind of visible storm. D A storm over mountain ridges. 37. In December 1997, a United Airlines flight hit unexpected rough air, A causing a lot of damage to the plane. B throwing its passengers out of the cabin. C resulting in heavy casualties. D forcing the pilot to make an emergency landing. 38. The turbulence detector can tell the severity of the turbulence by measuring A the speed of the plane. B the speed of the light. C the number of particles in the air. D the changes of the particles’ speed. 39. We can infer from the fifth paragraph that A the lidar detector can successfully forecast turbulence. B researchers are not sure about the effectiveness of the lidar detector. C passenger planes will be used in further experiments. D no more test flights are needed. 40. The last paragraph tells us, among other things, that A the lidar detector needs improvement. B many airlines are interested in the system. C passengers often fet to fasten their seatbelts. D the lidar detector can be used in a wide range of areas. 第三篇 “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 bee productive once more. Tim Flowers and Tony Yeo, from Sussex University’s School o f Biological Sciences, have spent several years researching how crops, such as rice, could be made to grow in water that has bee salty. The pair have recently begun a threeyear programme, funded by the Biotechnology and Biological 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 100 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 concentrations of minerals in the plants stop them drawing up the water they need to survive. To overe 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 mercial 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. 41 Which of the following statements about Flowers and Yeo is true? 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. 42 Flowers and Yeo have started a programme A to find ways to prevent water pollution. B to identify genes that promote growth in salty soil. C to breed rice plants that taste salty. D to find ways to remove excessive salt from soil. 43 Which of the following is NOT mentioned as a cause of the problem discussed in the passage? A Natural barriers to sea water have been destroyed. B The water table has gone down after droughts. C Sea level has been continuously rising. D Evaporation of water leaves salt behind. 44 The word “affect” in Paragraph 6 could be best replaced by A “influence” B “effect” C “stop” D “present” 45 The attitude of the author towards the research project is A positive B negative. C suspicious D indifferent. 第 5 部分：补全短文 （第 46— 50 题，每题 2 分，共 10分） 阅读下面的短文，文章中有 5 处空白，文章后面有 6 组文字，请根据文章的内容选择 5 组文字，将其分别放回文章原有位置，以恢复文章原貌。 请将答案涂在答题卡相应的位置上。 Looking into the Future Bertrand Russell, a famous philosopher, said in 1944, “Th e one thing the study of the past teaches us is that the future is never how people imagine it will be.” In 1946, physicists predicted that within twenty years, most of the world’s energy would be supplied by nuclear power. __________ (46) In 1951, a famous surgeon said that he and his colleagues were confident that “by the end of the 1950s, a cure for most if not all cancers will have been found.” In 1954, an American economist predicted Americans would go on getting richer and richer. ___________ (47). In the year 1969, an automation engineer working for Max Factor Cosmetics in Britain said that “within twenty or twenty five years factories that today employ hundreds of workers will need only five or ten puter technicians to run them.” _________ ____ (48). In the early 1970s, there were many predictions that before the end of the century most homes in the United States, Europe and Ja。