第27題單選修改

　　閱讀下列短文,回答{TSE}題目.

　　Thousands of years ago man used handy rocks for his surgical operations. Later he used sharp bones or horns, metal knives and more recently, 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 all 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 intensely 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 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 it 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.

　　{TS} Which of the following would be appropriate to describe the instruments of surgical opera- tions up until 1960s?

　　A.Traditional.

　　B.Complicated.

　　C.Remarkable.

　　D.Revolutionary.

　　參考答案：A

　　參考解析： 參考譯文

　　幾千年前人們就用身邊的石頭做外科手術(shù)。后來人們開始使用骨頭或者角、鐵刀，現(xiàn)在在用塑料和橡膠。20世紀(jì)60年代，發(fā)明了一種新工具，這種新工具首先應(yīng)用在軍事以及工業(yè)上，后來也漸漸地用于改善手術(shù)技術(shù)及外科學(xué)上。

　　這種新工具就是激光，全世界越來越多的人在使用它。我們都知道，任何種類的光都是熱的，都會散發(fā)熱量。但是光都會散發(fā)得很廣闊。然而激光束的光是集中的。這就意味著由普通電燈泡發(fā)出的光所產(chǎn)生的能量由于被集中到一起而變得十分巨大。

　　對這些精尖光束的實驗還表明不同的能源產(chǎn)生的光束能夠?qū)�活�?xì)胞產(chǎn)生不同的效應(yīng)�，F(xiàn)在眼科醫(yī)生僅僅通過讓激光束通過眼球就能在后眼球上做手術(shù)而不傷害到前眼球。曾經(jīng)一度讓患者疲憊不堪，并且術(shù)后恢復(fù)時間漫長的手術(shù)現(xiàn)在讓患者變得很輕松很舒服。

　　激光技術(shù)在過去十年中的迅速發(fā)展清楚顯示了激光技術(shù)的未來還是很樂觀的。也許一些癌癥也能夠用激光來治療，使得手術(shù)不僅更安全而且更有效。

　　答案及解析

　　A【解析】事實細(xì)節(jié)題。題干的意思是“以下哪個單詞能夠確切描述20世紀(jì)60年代以前的手術(shù)工具?”A選項的意為“傳統(tǒng)的”;B選項意為“復(fù)雜的”;C選項意為“非凡的”;D選項意為“革命的”。原文第一段提到幾千年前人們用石頭、牛角等做手術(shù)，由此可以推斷出選項A是正確的。

　　第28題單選修改

　　What do we find after the development of the laser in the 1960s?

　　A.Industrial revolution brought surgery changed greatly.

　　B.Medical help became available for industrial workers.

　　C.The study of art went through a complete revolution.

　　D.Human being's methods in surgery changed greatly.

　　參考答案：D

　　參考解析：D【解析】事實細(xì)節(jié)題。題干的意思是“20世紀(jì)60年代激光取得發(fā)展后我們可以發(fā)現(xiàn)什么?”根據(jù)原文第一段最后一句可知“激光為外科手術(shù)帶來革命性的變化”，故選D。

　　第29題單選修改

　　The reason why the laser beam is very strong is that_______

　　A. it is artificially illuminated

　　B.it is made up of a concentrated beam of light

　　C.it sends out heat in all directions

　　D.its heat is increased by the heat of the sun

　　參考答案：B

　　參考解析：B【解析】事實細(xì)節(jié)題。題干的意思’是“為什么激光束的能量比較強(qiáng)?”根據(jù)原文第二段最后一句可知“能量被集中到一起而變得強(qiáng)大”。故答案為B。

　　第30題單選修改

　　After the use of the laser beam, surgeons can perform operations which

　　A.leave their patients with negative effects

　　B.can treat only human eye diseases

　　C.do little damage to their patients

　　D.make their patients need a long time to recover

　　參考答案：C

　　參考解析：C【解析】事實細(xì)節(jié)題。題干的意思是“使用激光束做手術(shù)時醫(yī)生可以。文中第三段提到“曾經(jīng)一度讓患者疲憊不堪，并且術(shù)后恢復(fù)時間漫長的手術(shù)現(xiàn)在讓患者變得很輕松很舒服”，可以排除A和D。由文中最后一句“也許一些癌癥也能夠用激光來治療”可知B選項不正確。C選項意思為“使患者受到很小的傷害”。所以正確答案為C。