[单项选择]

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 Emerging 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 than30 or 40 years away are mostly speculation. This leaves a 10-to 20-year window
A. foresee future technologies.
B. influence future technologies.
C. provide new technologies.
D. design new technologies.

[单项选择]

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 Emerging 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 than30 or 40 years away are mostly speculation. This leaves a 10-to 20-year window
A. information.
B. advanced method.
C. science.
D. technology.

[单项选择]Now that we （　） all the money, it's no use turning on me and saying it's all my fault.
A. had lost
B. lost
C. have lost
D. lose

[填空题]

• A. Cloud-to-ground lightning occurring in the U. S.
• B. Types of lightning
• C. Cause of lighruing
• D. Differences between thunder and thunderstorm
• E. Frequencies of thunderstorms occurring in the world and the U. S.
• F. Shockwaves as thunder

Paragraphs 2 and 3 ______.

[单项选择]Now that we（）all the money, it's no use turning on me and saying it's all my fault.
A. had lost
B. lost
C. have lost
D. lose

[填空题]Let’s turn our focus now to (36) . We all know what an advertisement is. It is essentially a message that (37) something for sale.
Now, there is an important precondition that must exist before you have advertising. That is a large supply of (38) goods, that is, things to sell. You see, in a place where a demand for a product is (39) than the supply, there’s no need to advertise. The early form of advertising goes back to many hundreds of years ago with a simple sign. There were shop doors that told you whether the shop was a bakery, a (40) shop or whatever. Then was the introduction of the printing craze. Advertising increased substantially as printings for products like coffee, tea and chocolate appeared in newspapers and other (41) as well as on the side of buildings. In the American (42) , advertising in communication’s media like newspapers and pamphlets became a major factor in (43) good