公共英语考试二级通关练习题及答案.docx

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1、公共英语考试二级通关练习题及答案公共英语考试二级通关练习题及答案Understand yourself in order to better understanding others.以下是我为大家搜寻整理的公共英语考试二级通关练习题及 答案，期望能给大家带来帮忙!更多精彩内容请准时关注我们应届毕 业生考试网！阅读下列短文，回答题目.Thousands of years ago man used handy rocks for his surgical operations. Later he used sharp bones or horns, metal knives and more r

2、ecently, rubber and plastic. In the 1960s a new tool was developed, one which was, first of all, to be of great practical use to the armed forces and indus- try, but which was also to revolutionize the art and science of surgery.The tool is the laser and it is being used by more and more surgeons al

3、l over the world. As we all know, light is hot, and any source of light will give warmth. But light is usually spread out over a wide area. The light in a laser beam, however, is concentrated. This means that a light with no more power than that produced by an ordinary electric light bulb becomes in

4、tensely strong as it is concentrated to a pinpoint-sized beam.Experiments with these pinpoint beams showed researchers that different energy sources pro- duce beams that have a particular effect on certain living cells. It is now possible for eye surgeons to operate on the back of human eye without

5、harming the front of the eye, simply by passing a laser beam right through the eye-ball. Operations which once left patients exhausted and in need of long period of recovery time now leave them feeling relaxed and comfortable.The rapid development of laser techniques in the past ten years has made i

6、t clear that the future is likely to be very exciting. Perhaps some cancers will be treated with laser in a way that makes surgery not only safer but also more effective.1. Which of the following would be appropriate to describe the instruments of surgical opera- tions up until 1960s?A.Traditional.B

7、.Complicated.C.Remarkable.D.Revolutionary.参考答案：A参考解析：答案及解析A事实细节题。题干的意思是以下哪个单词能够准确描述20世 纪60年月以前的手术工具? A选项的意为传统的前选项意为简单 的式选项意为非凡的；D选项意为革命的。原文第一段提到几千 年前人们用石头、牛角等做手术，由此可以推断出选项A是正确的。2. What do we find after the development of the laser in the 1960s?A.Industrial revolution brought surgery changed greatly.

8、8. Medical help became available for industrial workers.C.The study of art went through a complete revolution.D. Human beings methods in surgery changed greatly.参考答案：D参考解析：D事实细节题。题干的意思是20世纪60年月激光取 得进展后我们可以发觉什么？依据原文第一段最终一句可知激光为 外科手术带来革命性的变化，故选D。3. The reason why the laser beam is very strong is thatA

9、. it is artificially illuminatedB. it is made up of a concentrated beam of lightC. it sends out heat in all directionsD. its heat is increased by the heat of the sun参考答案：B参考解析：B事实细节题。题干的意思是为什么激光束的能量 比较强?依据原文其次段最终一句可知能量被集中到一起而变得强 大故答案为B。4. After the use of the laser beam, surgeons can perform operati

10、ons whichA.leave their patients with negative effectsB. can treat only human eye diseasesC.do little damage to their patientsD. make their patients need a long time to recover参考答案：c参考解析：c事实细节题。题干的意思是使用激光束做手术时 医生可以。文中第三段提到曾经一度让患者疲乏不堪，并且术后恢 复时间漫长的手术现在让患者变得很轻松很舒适，可以排解A和Do 由文中最终一句或许一些癌症也能够用激光来治疗可知B选项不 正确。C选项意思为使患者受到很小的损害。所以正确答案为C。文档内容到此结束，欢迎大家下载、修改、丰富并分享给更多有 需要的人。