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
The fact is that the energy crisis, which has suddenly been officially announced, has been with us for a long time now, and will
The fact is that the energy crisis, which has suddenly been officially announced, has been with us for a long time now, and will
admin
2017-06-11
56
问题
The fact is that the energy crisis, which has suddenly been officially announced, has been with us for a long time now, and will be with us for an even longer time. Whether Arab oil flows freely or not, it is clear to everyone that world industry cannot be allowed to depend on so fragilea base.【T1】
The supply of oil can be shut off unexpectedly at any time, and in any case, the oil wells will all run dry in thirty years or so at the present rate of use.
【T2】
New sources of energy must be found, and this will take time, but it is not likely to result in any situation that will ever restore that sense of cheap and plentiful energy we have had in the times past.
For an indefinite period from here on, mankind is going to advance cautiously, and consider itself lucky that it can advance at all.
To make the situation worse, there is as yet no sign that any slowing of the world’s population is in sight. Although the birth-rate has dropped in some nations, including the United States, the population of the world seems sure to pass six billion and perhaps even seven billion as the twenty-first century opens.
【T3】
The food supply will not increase nearly enough to match this, which means that we are heading into a crisis in the matter of producing and marketing food.
Taking all this into account, what might we reasonably estimate supermarkets to be like in the year 2001?
To begin with, the world food supply is going to become steadily tighter over the next thirty years — even here in the United States. By 2001, the population of the United States will be at least two hundred fifty million and possibly two hundred seventy million, and the nation will find it difficult to expand food production to fill the additional mouths.【T4】
This will be particularly true since energy pinch will make it difficult to continue agriculture in the high-energy American fashion that makes it possible to combine few farmers with high yields.
【T4】
选项
答案
这种困境将是确定无疑的,因为能源的匮乏使农业无法以高能量消耗这种美国耕种方式继续下去了,而这种耕种方式使农民投入少数就可能获得高产。
解析
转载请注明原文地址:https://kaotiyun.com/show/awFO777K
0
考博英语
相关试题推荐
Therearethreeseparatesourcesofhazard【C1】______totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioa
Therearethreeseparatesourcesofhazard【C1】______totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioa
Therearethreeseparatesourcesofhazard【C1】______totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioa
Therearethreeseparatesourcesofhazard【C1】______totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioa
Therearethreeseparatesourcesofhazard【C1】______totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioa
Therearethreeseparatesourcesofhazard【C1】______totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioa
Therearethreeseparatesourcesofhazard【C1】______totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioa
Therearethreeseparatesourcesofhazard【C1】______totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioa
随机试题
下列不属于家庭教育的特点的是【】
大便溏泄可见于
下列病证川芎不宜用的是
获得性免疫缺陷综合征的典型特征,不包括A.HIV抗体阳性B.并发卡氏肺囊虫肺炎C.CD4+/CD8+比值倒置D.外周血红细胞数下降、血沉增快E.并发Kaposi肉瘤
关于血友病A正确的是
关于妊娠的描述错误的是
隧道衬砌时为了防治裂缝产生,钢筋保护层必须保证不小于()cm。
有关承保责任的说法,正确的是()
发卡银行对贷记卡持卡人未偿还最低还款额和超信用额度用卡的行为,应当分别按最低还款额未还部分、超过信用额度部分的5%收取滞纳金和超限费。()
诊断急性呼吸窘迫综合征最重要的依据是
最新回复
(
0
)