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
考研
Plastic is the panacea of the ages. Nearly every man-made object (1)_____ (2)_____ of, or at least (3)_____ its very structure,
Plastic is the panacea of the ages. Nearly every man-made object (1)_____ (2)_____ of, or at least (3)_____ its very structure,
admin
2011-10-20
93
问题
Plastic is the panacea of the ages. Nearly every man-made object (1)_____ (2)_____ of, or at least (3)_____ its very structure, to this wonder compound. Rain slickers, computer terminals, automobile engine parts, coffee cups (and the sugar stirrers too), breast implants, toy soldiers—they are all made up of plastic, or one of its many (4)_____ Since the (5)_____ of civilization, humankind bas been experimenting (6)_____ a multifunctional material—one that had to be equally strong and lightweight—to carry, contain and protect valuables. (7)_____ it could carry, contain and protect humans too, even better. Generations of tinkerers and scientists set off (8)_____ the challenge, striking gold some 170 years ago. By mixing natural rubber with sulphur they created the world’s most utilized material ever. In developing a (9)_____, malleable and durable substance, the most important inventions of the industrial age were to follow shortly thereafter. The automobile and airplane industries, to (10)_____ just two, owe their very existence to plastic. And, (11)_____ celluloid plastic strips, the Lumiere Brothers would never have brought moving pictures to the big screen.
The development of plastic is a story of human (12)_____, ingenuity and luck. (13)_____ the legend now goes, in 1839, the American inventor Charles Goodyear (the famous tyre company would later use his name) was experimenting with the sulphur treatment of natural rubber when he dropped a piece of sulphur-treated rubber on a stove. The heat seemed to give rubber (14)_____ properties. It was stronger, more (15)_____ to abrasions more elastic, much less (16)_____ to temperature, (17)_____ to gases, and highly resistant to chemicals and electric (18)_____ Eyeing this as a cheaply and easily reproduced construction material, a whirlwind of work (19)_____ and the birth of (20)_____ plastic and plastic-derivatives were born from camphor to celluloid to rayon; cellophane, polyvinyl chloride (or PVC); styrofoam and nylon were soon to follow.
选项
A、pursued
B、ensued
C、ensured
D、insured
答案
B
解析
ensue相当于follow,后文有提示。
转载请注明原文地址:https://kaotiyun.com/show/23p4777K
0
考研英语一
相关试题推荐
Therewasatimewhenparentswhowantedaneducationalpresentfortheirchildrenwouldbuyatypewriter,aglobeoranencyclo
Accordingtoanofficialreport,overathousandmonumentswerein______needofrestorationorprotectionfrompollution.
Stocksfinishedmixedinpost-holidaytradingyesterdayasWallStreetmeanderedthroughashortenedsession.(46)Themajorinde
Youaregoingtoreadalistofheadingsandatextaboutfivepossiblescientificbreakthroughsinthe21stcentury.Choosethe
Duringthe1990sboomDellComputer’scustomersgothookedonspeed.Mostwerewillingtopayapremiumtohavetheircomputers
Portabledevicesarebecominglighterandmoreappealing.Booksarebeing(1)_____intodigitalformbythethousands.Themost
Portabledevicesarebecominglighterandmoreappealing.Booksarebeing(1)_____intodigitalformbythethousands.Themost
RickeattractsgreatattentionbecauseThepurposeoflooseningthegripoftheCEOofficeisto
Thesimpleperceptionofnaturalformsisadelight.(46)Theinfluenceoftheformsandactionsinnatureissoneedfultoman,
随机试题
若反应原料昂贵、产物与负产物的分离很困难时,则宜选用高活性的工业催化剂。()
西方资本—帝国主义列强入侵中国强迫清政府签署的第一个不平等条约是
函数f(x,y)在点P(x0,y0)的某一邻域内偏导数存在且连续是f(x,y)在该点可微的().
关于肺结核患者咳嗽的叙述,错误的是
女性,38岁,反复发作右上腹疼痛3年。1天前进食油腻食物后腹痛,继之高热39.2℃,疼痛向右肩背部放射,无黄疽,来院急诊。体格检查:右上腹压痛、反跳痛。诊断明确,宜采取何种手术方式
头痛,痛处固定,痛如针刺者属于()
协议合作是政府与社会服务机构共同决策并出资经费给社会服务机构提供服务,政府在其中扮演的是()角色。
某科研单位招聘研究人员,要求被录取人员必须具备生物学专业背景,并且得到两名同行专家的推荐。以下哪项为真,说明录取没有遵守招聘要求?(1)杜林被录取,但只有一名同行专家推荐;(2)李力被录取,但他所学专业为文学;(3)张娜生物学
谈谈你对科学发展观的理解和看法。
A、 B、 C、 D、 D将正四面体的展开图描点以后,如下图所示:将选项A图描点以后,如下图所示:与原图对比发现,若以ACD面为基准面,则ABD面与原图不同,故A项错误。将选项B图描点以后,如下图所
最新回复
(
0
)