第39题选 -考呗网

公共英语四级

单选题第39题选

A．presented
B．attributed
C．blamed
D．appealed

present提交，展现；attribute与介词to连用表示“把…归因于”；blame与介词for或on连用表示“把…归因于”；appeal sb．／sth．against sth．表示“因…申诉…”。这里是一个定语从句，意思是在200名调查对象中一半以上的人都将健康问题归因于座舱空气质量不良，故选B。

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1第40题选

A．exposure to
B．exploration of
C．formation of
D．compensation for

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2根据下面资料，回答题
Revolutionary innovation is now occurring in all scientific and technological fields. This wave of unprecedented change is driven primarily by advances in information technology, but it is much larger in scope. We are not dealing simply with an Information Revolution but with a Technology Revolution.
To anticipate developments in this field, the George Washington University Forecast of Emer-ging Technologies was launched at the start of the 1990s. We have now completed four rounds of our Delphi survey--in 1990,1992,1994, and 1996--giving us a wealth of data and experience. We now can offer a reasonably clear picture of what can be expected to happen in technology over the next three decades.
Time horizons play a crucial role in forecasting technology. Forecasts of the next five to ten years are often so predictable that they fall into the realm of market research, while those more than 30 or 40 years away are mostly speculation. This leaves a 10-to 20-year window in which to make useful forecasts. It is this time frame that our Forecast addresses.
The Forecast uses diverse methods, including environmental scanning, trend analysis, Delphi surveys, and model building. Environmental scanning is used to identify emerging technologies.
Trend analysis guides the selection of the most important technologies for further study, and a modi-fied Delphi survey is used to obtain forecasts. Instead of using the traditional Delphi method of pro-riding respondents with immediate feedback and requesting additional estimates in order to arrive at a consensus, we conduct another survey after an additional time period of about two years.
Finally, the results are portrayed in time periods to build models of unfolding technological change. By using multiple methods instead of relying on a single approach, the Forecast can produce more reliable, useful estimates.
For our latest survey conducted in 1996, we selected 85 emerging technologies representing the most crucial advances that can be foreseen. We then submitted the list of technologies to our panel of futurists for their judgments as to when ( or if) each technological development would enter the mainstream, the probability that it would happen, and the estimated size of the economic market for it. In short, we sought a forecast as to when each emerging technology will have actually "e-merged. "
What we are faced with at present Call be best described as a revolution in

A．information．
B．advanced method．
C．science．
D．technology．

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3The purpose of the Delphi survey is to

A．foresee future technologies.
B．influence future technologies．
C．provide new technologies．
D．design new technologies．

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