更多"Over the last five years, Eagle Tru"的相关试题:
[单项选择]Over the last 40 years there has been a great increase not only in the number of agricultural pesticides in use but also in the care and sophistication with which they are used by farmers. Nevertheless, the proportion of agricultural crops lost to certain pests worldwide has increased over the same period, even when the pests concerned have not developed resistance to existing pesticides.
Which of the following, if true, best explains how improvements in pesticide use have been accompanied by greater losses to certain pests
A. Some dangerous but relatively ineffective pesticides common 40 years ago are no longer in widespread use.
B. As pesticides have become increasingly pest-specific, controlling certain pests with pesticides has turned out to cost more in many cases than the value of crop losses caused by those pests.
C. Because today’s pesticides typically have more specific application conditions than did pesticides in use 40 years ago, today’s farmers observe their fields more closely than did farmers 40 years ago.
D. Certain pest-control methods that some farmers use today do not involve the use of chemical pesticides but are just as effective in eliminating insect pests as those that do.
E. (E) Forty years ago, much less was known about the effects of pesticides on humans and other mammalian species than is now known.
[单项选择]In the last five years prices for western art have soared. Popular artists can’t paint fast enough to keep up with the demand for paintings that regularly sell for $30,000 to $50,000. The boom is all the more striking considering that 20 years ago western art had virtually no market at all. To some extent, its success reflects Americans’ increased interest in their heritage. Certainly there are those who would argue that western art is the truly indigenous American art.
Its roots date back at least as far as the early 19th century, when George Catlin, perhaps the greatest western artist of that period, took his paints and brushes and ventured into the wilderness in the company of William Clark. His close observations of the beautifully savage country molded a new and powerful aesthetic, one that incorporated the sweep of plains and the primitive dynamism of the people who lived there. Catlin’s portraits of Indian chiefs are noble, his paintings of scenes such as "Buffalo Hunt wi
A. popular artists have failed to keep up with the market demand.
B. western art no longer has its market.
C. Americans have become more interested in their heritage.
D. Americans have more buying power nowadays.
[单项选择] Over the last 25 years, British society has changed a great deal — or at least many parts of it have. In some ways, however, very little has changed, particularly where attitudes are concerned. Ideas about social class — whether a person is "working-class "or "middle-class"— are one area in which changes have been extremely slow.
In the past, the working-class tended to be paid less than middle-class people, such as teachers and doctors. As a result of this and also of the fact that workers’’ jobs were generally much less secure, distinct differences in life-styles and attitudes came into existence. The typical working man would collect his wages on Friday evening and then, it was widely believed, having given his wife her "housekeeping" ,would go out and squander the rest on beer and betting.
The stereotype of what a middle-class man did with his money was perhaps nearer the truth. He was — and still is — inclined to take a longer-term view. Not only did he regard buying
A. Desiring for security.
B. Making long-term plans.
C. Having priorities in life.
D. Saving money.
