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
Our trouble lies in a simple confusion, one to which economists have been prone since the beginning of the Industrial Revolution
Our trouble lies in a simple confusion, one to which economists have been prone since the beginning of the Industrial Revolution
admin
2013-11-29
72
问题
Our trouble lies in a simple confusion, one to which economists have been prone since the beginning of the Industrial Revolution. Growth and ecology operate by different rules. Economists tend to assume that every problem of scarcity can be solved by substitution, by replacing tuna with tilapia, without factoring in the long-term environmental implications of either. But whereas economies might expand, ecosystems do not. They change—pine gives way to oak, coyotes arrive in New England—and they reproduce themselves, but they do not increase in extent or abundance year after year. Most economists think of scarcity as a labor problem, imagining that only energy and technology place limits on production. To harvest more wood, build a better chain saw; to pump more oil, drill more wells; to get more food, invent pest-resistant plants.
That logic thrived on new frontiers and more intensive production, and it held off the prophets of scarcity—from Thomas Robert Malthus to Paul Ehrlich—whose predictions of famine and shortage have not come to pass. The Agricultural Revolution that began in seventeenth-century England radically increased the amount of food that could be grown on an acre of land, and the same happened in the 1960s and 1970s when fertilizer and hybridized seeds arrived in India and Mexico. But the picture looks entirely different when we change the scale. Industrial society is roughly 250 years old; make the last ten thousand years e-qual to twenty-four hours, and we have been producing consumer goods and CO
2
for only the last thirty-six minutes. Do the same for the past 1 million years of human evolution, and every thing from the steam engine to the search engine fits into the past twenty-one seconds. If we are not careful, hunting and gathering will look like a far more successful strategy of survival than economic growth. The latter has changed so much about the earth and human societies in so little time that it makes more sense to be cautious than triumphant.
Although food scarcity, when it occurs, is a localized problem, other kinds of scarcity are already here. Groundwater is alarmingly low in regions all over the world, but the most immediate threat to growth is surely petroleum.
The purpose of mentioning the search engine is to show ______.
选项
A、the economic impact of information technology
B、the high speed of modern machines
C、popular interest in the Internet
D、technological progress
答案
D
解析
题目问:文中提及搜索引擎是为了表明什么。根据文中第二段倒数第三句“…everything from the steam engine to the search engine fits into the past twenty-one seconds.”可知,将蒸汽机和搜索引擎放在一起进行比较,明显表明了科技的进步,因此D项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/bHhO777K
0
考博英语
相关试题推荐
DealingwithDepression(51)Contrarytowhatmanypeoplethinkdepressionisnotanormalpartofgrowingolder.Norisith
Thelawofprivateinternationaltribunalswithrespecttoconflictsofinterestofarbitratorsisquiteextensive,albeitbyno
Dependingonwhetheryoubelieveinprincipleortheartofthepossible,theUnitedNations’newproposalforthefutureofWes
Dependingonwhetheryoubelieveinprincipleortheartofthepossible,theUnitedNations’newproposalforthefutureofWes
WhenIwasakid,Ineverknewwhatmyparents—oranyoneelse’s—didforaliving.AsfarasIcouldtell,allgrownupshadmyste
Thewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanpr
Itneverrainsbutitpours.Justasbossesandboardshavefinallysortedouttheirworstaccountingandcompliancetroubles,a
Governmenthastraditionallybeenevaluatedintermsoftheireffectsinpromotingseveralprinciples.Wehaveseenthatoneof
Itis3A.M.everythingontheuniversitycampusseemsghostlikeinthequiet,mistydarkness-everythingexceptthecomputerce
随机试题
制度化教育建立的典型特征是()
女,36岁,右中指指腹针刺伤,3天后指尖有严重跳痛和压痛,指尖肿胀,体温37.8℃该病例最可能而且较重的并发症是
岩体边坡稳定性常用等效内摩擦角φd来评价。今有一高10m的水平砂岩层边坡,砂岩的密度为2.50g/cm3,内摩擦角为35°,黏聚力为16kPa,则岩体的等效内摩擦角等于()。
行政法的基本原则有()。
对于不具有商业实质的非货币性资产交换,企业应以换出资产的公允价值为基础确定换入资产的成本。()
甲电商推出A品牌平板电脑5万台,由于员工疏忽将1500元标成了500元,很快被网购者拍完。甲电商经与A品牌平板电脑的厂商协商,决定将错就错,确认了所有订单。对此,下列判断正确的是()。
某企业对山东省人民政府对其不予许可的决定不服,应向()申请复议。
下列关于转基因生物安全性的叙述中,错误的是:
融资租赁,是指出租人购买租赁物件,并租给承租人使用,承租人则分期向出租人支付租金,在租赁期内租赁物件的所有权属于出租人所有,承租人拥有租赁物件的使用权;在租赁期满后。承租人有购买租赁资产的选择权,所订立的购买价款预计将远低于行使选择权时租赁资产的公允价值,
下列情况不属于结果加重犯的有()。
最新回复
(
0
)