首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
For thousands of years, people thought of glass as something beautiful to look at. Only recently have they come to think of it a
For thousands of years, people thought of glass as something beautiful to look at. Only recently have they come to think of it a
admin
2012-12-26
46
问题
For thousands of years, people thought of glass as something beautiful to look at. Only recently have they come to think of it as something to look through. Stores display their goods in large glass windows. Glass bottles and jars that hold food and drink allow us to see the contents. Glass is used to make eyeglasses, microscopes, telescopes, and many other extremely useful and necessary objects.
Until the Second World War, most of the glass used for optical instruments was imported from Europe. However, during the war Americans could not get European glass, and they were forced to make their own. As a result, new kinds of glasses were developed that had been previously unknown. These new effects were achieved by mixing other chemical elements with the sand. Some of these new glasses are very strong and can resist many kinds of shocks. Legend has it that a very hard glass was invented by a Roman who showed his discovery to the Emperor. When the Emperor saw the glass he feared that it would become more valuable than gold and silver, making his treasure worthless. Therefore, he had the glassmaker killed, and the secret was not discovered again for hundreds of years.
In the present century, safety glass was invented for use in modern cars and planes. Safety glass is made by placing a layer of plastic between two layers of plate glass. When the outside layer of glass is broken, the pieces do not scatter and injure people. Some glass of this type is strong enough to resist bullets.
Although in recent years plastics have replaced glass under conditions where glass might be easily broken, there are new uses being developed, for the greatest advantage of glass is that its component parts are inexpensive and can be found all over the world.
By telling the legend, the author wants to______.
选项
A、prove that the Roman was the first inventor of hard glass
B、support that the Americans were as clever as the Romans
C、give some interesting information about hard glass
D、provide a historical event concerned with hard glass
答案
C
解析
推理判断题。本题考查例子与主题的关系。作者引用传说,只是为了使文章读起来更有趣。这是一个传说,不一定是真实的,因此,它不能被视为选项D所提及的历史事件,也不能证明是罗马人第一个发明坚固的玻璃,所以选项A也是不对的。选项B与本段内容无关,本段主要说明了美国人开发出新的玻璃制品的来由,并无说明美国人聪明之意。
转载请注明原文地址:https://kaotiyun.com/show/ppw7777K
0
大学英语四级
相关试题推荐
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmerican【B1】______ofover100,000peoplesh
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmerican【B1】______ofover100,000peoplesh
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmerican【B1】______ofover100,000peoplesh
A、Arecordingartist.B、AFrenchteacher.C、Astudent.D、Ateachingassistant.C选项表明,本题考查人物身份。由女士问男士youwerelookingforastude
A、Helosthisfatherwhenhewasyoung.B、Heworkedhardbeforehereadhisfather’sletter.C、Heaskedhisfather’spermission
ManywithNewCollegeDegreeFindtheJobMarketHumblingTheindividualstoriesarefamiliar.Thechemistrymajortendingb
EarthquakeCanScientistsPredictKillerEarthquakes?ThedatewasNovember23,1980.PeoplenearNaples,inSouthernItaly
A、Itisbeingforcedoutoftheentertainmentindustry.B、Itshouldchangeitsconceptofoperation.C、Itshouldrevolutionizei
A、Tohelptheoutstandingstudentsgoabroad.B、Tohelpsomepoorcollegestudentsearnmoremoney.C、Tohelpinternationalstud
A、Sheshouldinvestintheproject.B、Sheshouldinvestintheprojectundersufficientconditions.C、Sheshouldn’tinvestinth
随机试题
在社会主义改造中,用和平赎买方法改造的对象是()
脱水药的特点是()
A.海藻玉壶汤B.普济消毒饮合丹栀逍遥散C.透脓散合仙方活命饮D.龙胆泻肝汤合芍药散E.知柏地黄汤合当归六黄汤治疗慢性甲状腺炎气滞痰凝证,应首选
在产品价格相差较小并趋于同质化的前提下,选择产品的非价格因素就显得尤为重要。保险产品的非价格因素不包括( )。
当发生()时,基金合同生效。
可以通过受训者与有经验的管理人员共同工作和管理人员对受训者的特别关注,从而拓展受训者的思维,增加他们的管理经验的方法是()
据统计,2016年共有来自205个国家和地区的442773名各类外国留学人员在31个省、自治区、直辖市的829所高等学校、科研院所和其他教学机构中学习,比2015年增加45138人。1.按洲别统计2.按国别排序前15名:韩国70540人,美国2383
①大观园正园门附近还有花厅(议事厅)和茶房②其中滴翠亭在潇湘馆附近,藕香榭在暖香坞寥风轩附近,芦雪庵与藕香榭相通③大观园中的建筑被一贯穿南北的中轴线分为东西两部分④这条轴线的东半区从南到北有怡红院、嘉荫堂等祭月赏月建筑群、佛寺道院建筑群(含栊翠庵)、
下列哪个选项是1954年《宪法》的制定主体()
关于水平滚动条,如下叙述中错误的是
最新回复
(
0
)