职称英语模拟试题训练(4)

1、职称英语:模拟试题训练(4)第三篇Salty Rice Plant Boosts HarvestsBritish 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 Universitys School of B

2、iological Scie nces, have spe nt several years researchi ng 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, fun ded by the Biotechnology a nd Biological Sciences Research Council, to establish which genes enable some

3、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 tr

4、opics, man groves （红树林）that create swamps（沼痒）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 evapora

5、ted （蒸发）by the heat, leaving salt deposits behi nd.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 overcome these problems, Flowers and Yeo decided to breed rice plants th

6、at 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 char

7、acteristics 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 follo

8、wing statements about Flowers andYeo is true?A They are students at Sussex University.B They are rice breeders.C They are husband and wifeD They are colleagues at an institution of higher learning.42 Flowers and Yeo have started a programmeA to find ways to prevent water pollution.B to identify gene

9、s 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 d

10、own 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 byA influenceB neffectC ”stop”D present45 The attitude of the author towards the research project ISA positiveB negative.C suspiciousD indiff

11、erent.第5部分：补全短文(第4650题，每题2分，共10分)阅读下面的短文，文童中有5处空白，文章后面有6组文字，请 根据文童的内容选择5组文字，将其分别放回文童原有位置，以恢复 文童原貌。请将答案涂在答题卡相应的位置上。Looking into the FutureBertrand Russell, a famous philosopher; said in 1944, The one thing the study of the past teaches us is that the future is never how people imagine it will be.nIn

12、1946, physicists predicted that within twenty years, most of the worlds energy would be supplied by nuclear power. (46) In 1951, a famous surge on said that he and his colleagues were confident that nby the end of the 1950s, a cure for most if not all cancers will have been found. In 1954, an Americ

13、an economist predicted Americans would go on getting richer and richer.(47).In the year 1969, an automation engineer working for MaxFactor Cosmetics in Britain said that Hwithin twenty ortwenty-five years factories that today employ hundreds of workers will need only five or ten computer technicians

14、 to run them.,(48).备注说明，非正文，实际使用可删除如下部分。本内容仅给予阅读编辑指点：Is本文件由微软OFFICE办公软件编辑而成，同时支持WPS。2、文件可重新编辑整理。3、建议结合本公司和个人的实际情况逬行修正编辑。4、因编辑原因，部分文件文字有些微错误的，请自行修正,并不影响本文阅读。Note: it is not the text. The following parts can be deleted for actual use This content only gives reading and editing instructions:1. This document is edited by Microsoft office office software and supports WPS2. The files can be edited and reorganized3. It is suggested to revise an