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
Originally, plastic was hailed for its potential to reduce humankind’s heavy environmental footprint. The earliest plastics were
Originally, plastic was hailed for its potential to reduce humankind’s heavy environmental footprint. The earliest plastics were
admin
2013-10-08
40
问题
Originally, plastic was hailed for its potential to reduce humankind’s heavy environmental footprint. The earliest plastics were invented as substitutes for shrinking supplies of natural materials like ivory or tortoiseshell. Today, plastic is perceived as nature’s nemesis(复仇者). But a generic distaste for plastic can muddy our thinking about the trade-offs involved when we replace plastic with other materials.
Take plastic bags, the emblem(象征)for all bad things. They clog storm drains, tangle up recycling equipment, litter parks and beaches and threaten wildlife on land and at sea. Such problems have fueled bans on bags around the world and in more than a dozen American cities. Unfortunately, the bans typically lead to a huge increase in the use of paper bags, which also have environmental drawbacks. In other words, plastics aren’t necessarily bad for the environment; it’s the way we make and use them that’s the problem.
It’s estimated that half of the nearly 600 billion pounds of plastics produced each year go into single-use products. Some are indisputably valuable, like disposable syringes(注射器), which have been a great ally in preventing the spread of infectious diseases like HIV, and even plastic water bottles, which, after disasters like the Japanese tsunami(海啸), are critical to saving lives. Yet many disposables, like the bags, drinking straws and packaging commonly found in beach clean-ups, are essentially prefab litter with a heavy environmental cost.
And there’s another cost. Pouring so much plastic into disposable conveniences has helped to diminish our view of a family of materials we once held in high esteem. Plastic has become synonymous with cheap and worthless, when in fact those chains of hydrocarbons ought to be regarded as among the most valuable substances on the planet. If we understood plastic’s true worth, we would stop wasting it on trivial throwaways and take better advantage of what this versatile material can do for us.
In a world of nearly seven billion souls and counting, we are not going to feed, clothe and house ourselves solely from wood, ore and stone; we need plastics. And in an era when we’re concerned about our carbon footprint, we can appreciate that lightweight plastics take less energy to produce and transport than many other materials.
Yet we can’t hope to achieve plastic’s promise for the 21st century if we stick with wasteful 20th-century habits of plastic production and consumption. We have the technology to make better and safer plastics—forged from renewable sources, rather than finite fossil fuels, using chemicals that inflict minimal or no harm on the planet and our health.
The author believes that people would stop wasting plastic if they______.
选项
A、knew the history of its invention
B、realized its impact on the environment
C、got punished for wasting it
D、didn’t take its value for granted
答案
D
解析
细节辨认题。定位句告诉人们要重视塑料的价值。如果人们能认识到塑料的真正价值,就不会把塑料浪费在生产一些不重要的用完即丢的物品上,而是会更好地利用这种具有多方面用途的材料,因此答案为D)。
转载请注明原文地址:https://kaotiyun.com/show/xX27777K
0
大学英语六级
相关试题推荐
Organisedvolunteeringandworkexperiencehaslongbeenavitalcompaniontouniversitydegreecourses.Usuallyitisleftto【C
Market【C1】______donotcomenaturallytoChineseofficials.Forthepastfouryearstwohugediversion【C2】______havebeenunde
ItwaslowtideonCapeCod,andcoastalnaturalistDickHilmerwasgettinghisfeetwetahalfmileofftheBrewstershoreline.
Forme,scientificknowledgeisdividedintomathematicalsciences,naturalsciencesorsciencesdealingwithnaturalworld,and
Today,somecriticsarguethatprogressonenvironmentalproblemshasbeenelusive(难以捉摸的,难以理解的).Thereissometruthinthat.I
A、80.B、160.C、20.D、40.D数字计算题。本题的关键是女士说的数字,他们雇佣了160名女性员工,占总人数的80%,那么总人数应该是200名,减去160名女性员工,男性员工应该是40名。所以答案选D。
Theshortergrowingseasonsexpectedwithclimatechangeoverthenext40yearswillendangerhundredsofmillionsofalreadypo
Personalityistoalargeextentinherent—AtypeparentsusuallybringaboutAtype【B1】______Buttheenvironmentmustalsoha
Bycontrast,Americanmothersweremorelikely______(把孩子的成功归因于)naturaltalent.
随机试题
上海文化的显著特点是“海纳百川,兼容并蓄”,它体现在上海文化的方方面面。上海舞台文化百花争艳,不仅有本乡本土的沪剧。还有国剧京戏以及越剧、淮剧等地方戏,也有来自域外的话剧、芭蕾舞等。上海的音乐文化是多旋律的(polyrhythmic),从乡土气息浓烈的江
静息痛
James染色法中5%甲醛液的作用是
老年男性,因夜间受凉突然出现尿潴留,其最可能的原因是
注册建造师李某于2011年1月办理了延续注册,2012年5月因工作调动办理了变更注册,变更后其注册证书和执业印章的有效期截止至()。
下面是某同学解方程的过程:求方程x(x一1)=x。解:x(x一1)=x两边同时除以x得x=2问题:(1)该同学的解题过程哪步错了?分析原因;(2)针对该生的情况,请你设计一个辅导教学片段,并说明设
以下属于犯罪构成要件的是()。
人类的规律,向来是自上而下地垂爱毫无保留,由下而上地尽孝则_________。所以,羔羊跪乳、乌鸦反哺,更多时候不过是庙堂之上的说辞。将年老的幸福筑建在孩子身上,这本身就有着_________的危险。依次填入画横线部分最恰当的一项是()。
LisaFryandPaulaTurnergrewupacrossthestreetfromeachotherinTwinFalls.Theynever(1)______theirfriendshipwouldla
Recently,apollonuniversitystudents’self-disciplineshowsthatonly30percentofthesurveyedstudentshaveverygoodself
最新回复
(
0
)