问题 单项选择题

在我国加入世界贸易组织、农业科技迅猛发展的形势下,农业面临的竞争首先是科技竞争。只有尽快提高农民的文化素质和科技意识,才能不断推广大批先进实用的农业科技成果,为农业和农村经济的发展提供有力的科技支撑。我国将继续推进农业和农村经济结构调整,大力发展优势农产品和特色产业,将在粮食主产区推广50个优质高产高效品种和10项关键技术。这些品种和技术
的推广和运用都需要高素质的农民。为此,国家已经决定大力发展农村成人教育,在全国普遍开展农村实用技术培训,每年将培训农民超过1亿人次。
这段文字的意思是在强调:( )

A.农民亟需提高科学文化素质
B.国家加大农业和农村经济结构调整
C.发展科技才能提高我国农业的竞争力
D.每年有大量农民接受农村实用技术培训

答案

参考答案:A

解析:分析本段结构,第二句的前半句是关键句,即要提高农民科学文化素质,而第一句是大前提即农业竞争首先是科技竞争,而第二句后半句及第三句都是小前提或者是具体原因,即这些具体的科技竞争因素需要高素质农民。最后一句是提高农民科学文化素质的具体做法。所以综合来看,本文中心是A选项。
[干扰项分析] B项没有涉及农业科技与农民科技素质问题,比较容易排除;C项是需要提高农民科学文化素质的原因,D项是提高农民科学文化素质的具体措施,显然都不是作者所强调的,所表达的意思虽然正确,但是与题干不贴切,故不能选。

单项选择题

The field of medicine has always attracted its share of quacks and charlatans — disrepu-table women and men with little or no medical knowledge who promise quick cures at cheap prices. The reasons why quackery thrives even in modem times are easy to find.
To begin with, pain seems to be a chronic human condition. A person whose body or mind "hurts" will often pay any amount of money for the promise of relief. Second, even the best medical treatment cannot cure all the ills that beset men and women. People who mistrust or dislike the truths that their physicians tell them often turn to more sympathetic ears.
Many people lack the training necessary to evaluate medical claims. Given the choice between (a) a reputable physician who says a cure for cancer will be long, expensive and may not work at all, and (b) a salesperson who says that several bottles of a secret formula "snake oil" will cure not only cancer but tuberculosis as well, some individuals will opt for "snake oil".
Many "snake oil" remedies are highly laced with alcohol or narcotic drugs. Anyone who drinks them may get so drunk or stoned that they drown their pains in the rising tide of pleasant intoxication. Little wonder that "snake oil" is a popular cure-all for minor aches and hurts! But let there be no misunderstandings. A very few "home remedies" actually work. However, most remedies sold by quacks are not only useless, but often can be harmful as well.

Many individuals opt for "snake oil" because they______.

A.are misled by a secret formula

B.cannot afford a treatment

C.lack medical knowledge

D.do not trust physicians

多项选择题