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
Read the following passage. Choose from the sentences A—G the one which best fits each gap of 61— 65. There are two extra senten
Read the following passage. Choose from the sentences A—G the one which best fits each gap of 61— 65. There are two extra senten
admin
2016-11-30
49
问题
Read the following passage. Choose from the sentences A—G the one which best fits each gap of 61— 65. There are two extra sentences which you do not need to use.
All these activities may have damaging environmental impacts. For example, land clearing for agriculture is the largest single cause of deforestation: chemical fertilizers and pesticides may contaminate water supplies: more intensive farming and the abandonment of fallow periods tend to exacerbate soil erosion: and the spread of monoculture and use of high-yielding varieties of crops have been accompanied by the disappearance of old varieties of food plants which might have provided some insurance against pests or diseases in future.
【R1】______The United States, where the most careful measurements have been done, discovered in 1982 that about one-fifth of its farmland was losing topsoil at a rate likely to diminish the soil’s productivity. The country subsequently embarked upon a program to convert 11 percent of its cropped land to meadow or forest. Topsoil in India and China is vanishing much faster than in A-merica.
【R2】______In the rich countries, subsidies for growing crops and price supports for farm output drive up the price of land. The annual value of these subsidies is immense: about $250 billion, or more than all World Bank lending in the 1980s. To increase the output of crops per acre, a farmer’s easiest option is to use more of the most readily available inputs: fertilisers and pesticides. Fertiliser use doubled in Denmark in the period 1960—1985 and increased in the Netherlands by 150 percent. The quantity of pesticides applied has risen too: by 69 percent in 1975—1984 in Denmark, for example, with a rise of 115 percent in the frequency of application in the three years from 1981.
【R3】______The most dramatic example was that of New Zealand, which scrapped most farm support in 1984. A study of the environmental effects, conducted in 1993, found that the end of fertiliser subsidies had been followed by a fall in fertiliser use(a fall compounded by the decline in world commodity prices, which cut farm incomes). The removal of subsidies also stopped land-clearing and over-stocking, which in the past had been the principal causes of erosion. Farms began to diversify. The one kind of subsidy whose removal appeared to have been bad for the environment was the subsidy to manage soil erosion.
【R4】______Such countries also try and to introduce new payments to encourage farmers to treat their land in environmentally friendlier ways, or to leave it fallow. It may sound strange but such payments need to be higher than the existing incentives for farmers to grow food crops. Farmers , however, dislike being paid to do nothing. In several countries they have become interested in the possibility of using fuel produced from crop residues either as a replacement for petrol(as etha-nol)or as fuel for power stations(as biomass). Such fuels produce far less carbon dioxide than coal or oil, and absorb carbon dioxide as they grow.
【R5】______But they are rarely competitive with fossil fuels unless subsidized—and growing them does no less environmental harm than other crops.
Questions 61 to 65:
A. Soil erosion threatens the productivity of land in both rich and poor countries.
B. To reduce environmental damages, government have to adopt various methods.
C. They are therefore less likely to contribute to the greenhouse effect.
D. Government policies have frequently compounded the environmental damage that farming can cause.
E. In less enlightened countries, and in the European Union, the trend has been to reduce rather than eliminate subsidies.
F. In the late 1980s and early 1990s some efforts were made to reduce farm subsidies.
G. Although all of them can produce poisonous gas through burning.
【R1】
选项
答案
A
解析
本段主要介绍了土壤腐蚀影响土地的产量。第一句是主题句,接下来介绍美国采取了措施,并且发现表层土壤的流失可能会导致土地产量下降。
转载请注明原文地址:https://kaotiyun.com/show/cuyK777K
本试题收录于:
A类竞赛(研究生)题库大学生英语竞赛(NECCS)分类
0
A类竞赛(研究生)
大学生英语竞赛(NECCS)
相关试题推荐
Thepresidentsaidthatatapressconferencedominatedbyquestionsonyesterday’selectionresultshecouldnotexplainwhyth
Usually,therearetworeasonstopursueseientifieknowledge:forthesakeoftheknowledgeitself,andforthepracticaluse
Intheearly1950stheresearcherswhoproducedthefirstcladglassopticalfiberswerenotthinkingofusingthemforcommunic
Itisatouchingscenethateveryparentcanimmediately__________becausetheyhavegonethroughthesameritualwiththeirown
Readthefollowingpoemandwriteanessayinwhichyoushoulddiscussitsmoralandexpressyourpersonalviews.Workwhil
______isCanada’slargestcity.
Fillinthemissingnumbersinthissequence:15873×7=11111115873×14=22222215873×()=33333315()×28=(
TheAustralianfederationhasa______systemofgovernment.
TheTroodosareaofCyprusisonlyanhour’sdrivefromthecoast,sowhynotconsideradaytripupintothemountainsasaref
随机试题
L1~S2脊髓损伤不可能出现的是:
男性,55岁。近2天出现上腹部不适,呕吐,呕吐物为酸臭的宿食,吐后症状可缓解。查体见胃型及蠕动波。该患者的诊断是
根据《建筑法》,获取施工许可证后因故不能按期开工的,建设单位应当申请延期,延期的规定是()。
船舶或航空器装载从一国境外启运,经该国设立海关地点,不换装运输工具,继续运往其他国家的货物,称为转运货物。()
中共中央政治局2016年3月25日召开会议,审议通过《关于经济建设和国防建设融合发展的意见》。会议指出,把军民融合发展上升为国家战略具有重大意义,下列说法正确的是()。
将下列选项中的词语填入下列横线处,最恰当的一项是:()。有些书可供一________,有些书可以吞下,而很有价值的书是应当________消化的。
在某种意义上,网上匿名与我们在现实世界中一些情况是类似的。驾驶汽车、穿越边境、搭乘飞机时,要求公民携带证件,它虽然构成了对自由的一种侵犯,但这样做减少了真实存在的风险,我们也就乐于接受这些要求。然而,如果要求每个购物者每次进商店时都出示身份证,原因是这不仅
FDA
在N+1设计中有多少个备用控制器?A、1B、2C、3D、4
在名为BigNumber的类的类体中对运算符函数double进行了如下声明:operatordouble(BigNumber);函数声明中有一个明显的错误,这个错误就是
最新回复
(
0
)