首页
登录
职称英语
There are three trends most widely blamed for causing environmental problems
There are three trends most widely blamed for causing environmental problems
游客
2025-03-19
41
管理
问题
There are three trends most widely blamed for causing environmental problems—population growth, urbanization and industrialization.
The world’s population is increasing by around 85 million every year—the equivalent of, say, another Mexico. The pace of growth has come down a little since the 1960s, but according to United Nations projections it remains fast enough to push the world’s population above 9 billion, from around 6 billion today. Most of that growth will be in developing countries. The population explosion of the past few decades has been due to a happy trend: a dramatic rise in life expectancy (平均寿命), thanks in part to the spread of modern medicines and better sanitation. But, say environmentalists, the world’s supply of natural resources is finite, and in some regions particular resources are already scarce (water in the Middle East, certain species of fish in the North Atlantic). How can these resources be made to go round an extra 3 billion people?
Increasing urbanization is another environmental worry. The historic movement from country to town in rich countries is now being echoed in poor countries, but on a much bigger scale. The UN expects that between 1990 and 2025 the number of people living in urban areas will double to more than 5 billion, and that 90% of that growth will be in developing countries. In Africa and Asia more than half the population still lives in the countryside, compared with only a fifth in Europe and North America.
Country-dwellers in developing countries are moving to cities for the same sort of reasons as in the rich countries in the 19th century:they are pushed by a scarcity of farm jobs, and they are pulled by the hope of better jobs and a better life. Governments in many developing countries have accelerated this progress by pursuing economic policies that discriminate against agriculture; until recently, for example, many governments kept food prices artificially low. The reason why urbanization is likely to harm the local environment is simply that people are much more densely crowded together. Burn a tyre in the countryside, and no one may worry about it; but in the city it will cause a great many coughs and splutters (杂乱的声音).
Industrialization, too, is an obvious cause of environmental problems. Today’s rich countries moved first from agriculture to manufacturing industries which use resources intensively, and later to services and less polluting types of manufacturing. Many developing countries are now undergoing that first transition at the same time succumbing to (屈从于) a temptation not available in the 19th century; motor vehicles. [br] Many farmers in rich countries moved to cities in the 19th century because of______.
选项
A、a scarcity of farm jobs
B、the hope of better jobs and life
C、discriminating economic policies
D、both A and B
答案
D
解析
细节题。第四段开头讲,现在发展中国家的农村居民涌人城市,其原因与19世纪富裕国家的农民涌人城市相同:农场工作稀缺、希望更好的工作和生活。因此,D为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/4004058.html
相关试题推荐
Man:Haveyourunupagainstanyproblemsingettingyourpassportrenewed?Woma
Therearethreetrendsmostwidelyblamedforcausingenvironmentalproblems
Therearethreetrendsmostwidelyblamedforcausingenvironmentalproblems
Therearethreetrendsmostwidelyblamedforcausingenvironmentalproblems
Therearethreetrendsmostwidelyblamedforcausingenvironmentalproblems
Theresearchscientistsoftenmeetwithproblems______newtypesofinstrumentfo
Ifpossible,anenvironmentalteamshouldbeformed______representativesandexp
Britain’semissionsofgreenhousegases,blamedbymanyscientistsforcontr
Britain’semissionsofgreenhousegases,blamedbymanyscientistsforcontr
Wheredopesticides(杀虫剂)fitintothepictureofenvironmentaldisease?We
随机试题
A.1 B.-1 C.0 D.-2 E.2
不属于土石围堰类型的有()。A.土围堰 B.钢套箱围堰 C.木桩竹条土
以下监理资料,属于指令文件类的有()。A.暂停令 B.质量计划 C.变更
下列哪项是咳血方主治证候的病机特点A.血分有热,迫血妄行B.湿热蕴结,血渗肠道C
A.吐温类 B.司盘类 C.卵磷脂 D.季铵化物 E.肥皂类可作为油/水
研究者收集了某地300名铅作业工人的尿铅含量数据,经分析发现数据为偏态分布。
以下属于可以竞争拍卖的土地()。A.工业用地 B.商业用地 C.旅游用
在下列融资方式中,需组建SPV进行运作的融资方式是( )。A.BOT方式和ABS
机场信息集成系统应实现数据备份和数据恢复功能,备份数据包括( )和其他对于系统
灭活病毒无效的因素是A、干扰素 B、乙醚 C、青霉素 D、-70℃ E、
最新回复
(
0
)