问题 单项选择题

国际水源资源管理研究所23日在这里指出,大约有80个国家、占世界40%的人口正面临着严重的水资源短缺问题,这些国家的农业、工业和人们的健康正受到威胁。
由于水资源短缺,目前发展中国家有13亿人口缺乏干净的饮用水,20亿人没有足够的卫生设施。
这个研究所的专家们认为,水资源短缺将会成为制约发展中国家农业生产的主要因素。发展中国家大约有10亿多人口生活在干旱地区,到2025年时他们将会面临“绝对”缺水的形势,也就是说他们将没有足够的水资源来维持1990年的粮食生产人均水平,即使灌溉效率能得到大大提高,但家庭、工业和环境等方面的用水需要仍会对有限的水资源造成威胁。
专家们说,采用新的技术和对水资源实行更好的管理,有助于改变下世纪水资源短缺的局面,但考虑到水资源开发计划及更好的管理需要很长时间才能见成效,因此重要的是在水资源危机到来之前,就要预先考虑到可能出现的问题和及时采取行动。

目前,发展中国家有多少人口严重缺水

A.10亿
B.13亿
C.20亿
D.23亿

答案

参考答案:A

选择题
单项选择题

With the spread of inter-active electronic media a man alone in his own home will never have been so well placed to fill the inexplicable mental space between cradle and crematorium. So I suspect that books will be pushed more and more into those moments of travel or difficult defecation (1) people still don’t quite know what to do with.

When people do read, I think they’ll want to feel they are reading literature, or (2) something serious. (3) you’re going to find fewer books presenting themselves as no- nonsense and (4) assuming literary pretensions and being packaged as works of art. We can expect an extraordinary variety of genre, but with an underlying (5) of sentiment and vision.

Translators can only (6) from this desire for the presumably sophisticated. We can look forward to lots of difficult names and fantastic stories of foreign parts enthusiastically (7) by the overall worship of the "global village" Much of this will be awful and some wonderful, (8) don’t expect the press or the organizers of prizes to offer you much help in making the appropriate distinctions. They will be chiefly (9) in creating celebrity, the greatest enemy of discrimination, but a good prop for the (10) consumer.

Every ethnic grouping over the world will have to be seen to have a great writer--a phenomenon that will (11) a new kind of provincialism, more chronological than geographic, (12) only the strictly contemporary is talked about and (13) . Universities, including Cambridge, will include (14) their literature syllabus novels written only last year. (15) occasional exhumation for the Nobel, the achievements of ten or only five years ago will be largely forgotten.

In short, you can’t go too far wrong when predicting more of the same. But there is a (16) side to this--the inevitable reaction against it. The practical things I would like to see happen--publishers seeking less to (17) celebrity through extravagant advertising, (18) and magazines (19) space to reflective pieces--are rather more improbable than the Second Coming (耶稣复临). But dullness never quite darkens the whole planet. In their own idiosyncratic fashion a few writers will (20) be looking for new departures.

5()

A.variety

B.mechanism

C.monotone

D.conformity