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公共英语四级
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单选题第38题选

A．concerning
B．including
C．relating
D．attaching

参考答案A
解析:including包括…在内，表示前面所提事物包括后面出现的事物，两者属于同一范畴，且是隶属关系，而“complaints”与“air quality and health”不属于同一范畴，故排除B；relating与attaching均须与介词“to”连用来表示“关于，与…相关联”，故排除C、D；conceming关于，涉及，后面可以直接跟名词，如：the official docu-
ments concerning the sale of this land，故选A。
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单选题第39题选

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

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单选题第40题选

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

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单选题根据下面资料，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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