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
A very important world problem is the increasing number of people who actually inhabit this planet. The limited amount of land a
A very important world problem is the increasing number of people who actually inhabit this planet. The limited amount of land a
admin
2017-06-11
54
问题
A very important world problem is the increasing number of people who actually inhabit this planet. The limited amount of land and land resources will soon be unable to support the huge population if it continues to grow at its present rate.
So why is this huge increase in population taking place? It is really due to the spread of the knowledge and practice of what is becoming known as "Death Control". You have no doubt heard of the term "Birth Control". "Death Control" is something rather different. It recognizes the work of the doctors and scientists who now keep alive people who, not very long ago, would have died of a variety of then incurable diseases. Through a wide variety of technological innovations that include farming methods and the control of deadly diseases, we have found ways to reduce the rate at which we die. However, this success is the very cause of the greatest threat to mankind.
If we examine the amount of land available for this ever-increasing population, we begin to see the problem. If everyone on the planet had an equal share of land, we would each have about 50, 000 square meters. This figure seems to be quite encouraging until we examine the amount of usable land we actually have. More than three-fifths of the world’s land cannot produce food.
Obviously, with so little land to support us, we should be taking great care not to reduce it further. But we are not! Instead, we are consuming its "capital" — its nonrenewable fossil fuels and other mineral deposits that took millions of years to form but which are now being destroyed in decades. We are also doing the same with other vital resources not usually thought of as being nonrenewable such as fertile soils, groundwater and the millions of other species that share the earth with us.
It is a very common belief that the problems of the population explosion are caused mainly by poor people living in poor countries who do not know enough to limit their reproduction. This is not true. The actual number of people in an area is not as important as the effect they have on nature. Developing countries do have an effect on their environment, but it is the populations of richer countries that have a far greater impact on the earth as a whole.
In Paragraph 4 the writer implies that fertile soils are______.
选项
A、limited
B、renewable
C、nonrenewable
D、productive
答案
C
解析
由“We are also doing the same with other vital resources not usually thought of asbeing nonrenewable such as fertile soils,groundwater and the millions of other species that sharethe earth with us.”可知,对于其他重要资源,比如肥沃的土壤、地下水,还有几百万和我们共享地球的其他物种,我们也是同样对待,总是不把它们看作是不可再生的资源。故答案为C。
转载请注明原文地址:https://kaotiyun.com/show/GVFO777K
0
考博英语
相关试题推荐
Thereisastoryofaverywickedmanwhodies.Beforehedied,hewas【C1】______theworstbecausetherewere【C2】______sinshehad
Accordingtotherecentcensus,under-18s____nearly95%ofthesinglechildreninChinesefamilies.
Amajorreasonforconflictintheanimalworldisterritory.Themaleanimalestablishesanarea.Thesizeoftheareaissuffi
Amajorreasonforconflictintheanimalworldisterritory.Themaleanimalestablishesanarea.Thesizeoftheareaissuffi
Duringthepasttenorfifteenyears,agreatdealofattentionhasbeen【C1】______to"tellingitlikeitis,"or"lettingitallh
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport;Thedamageanddeath
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport;Thedamageanddeath
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport;Thedamageanddeath
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport;Thedamageanddeath
Thefamousinventorwasawardedan______doctoratebytheuniversity.
随机试题
对于无肝硬化的患者,术中全肝血流阻断时间一般不超过
宫环出血之瘀热互结证治法是
腹部CT检查时需口服阴性对比剂的疾病是
严重结肠损伤的治疗最好是
如果以标准贯入器作为一种取土器,则其面积比等于( )。
使用剩余收益评价投资中心的业绩,可以克服投资报酬率的短期行为倾向。()
甲礼花厂2017年6月发生如下业务:(1)委托乙厂加工一批焰火,甲厂提供原材料成本为37.5万元。当月乙厂将加工完毕的焰火交付甲厂,开具增值税专用发票注明收取加工费5万元。(2)将委托加工收回的焰火60%用于销售,取得不含税销售额38万元,将其余的
定期检修指拆卸机械设备的主要组成部分,恢复机械设备的技术性能。()
(2017·广西)教师组织学生到田间地头、工厂、博物馆、社区等进行教学,这种教学称为()
20世纪70年代,美国主动改善与中国的关系,尼克松于1971年派遣他的国家安全事务助理基辛格秘密访华,这表明美国()。
最新回复
(
0
)