[单项选择]In stating that "most compartments remain unidentified, furthermore, giving ample reason for scientific humility" (lines 30-31) the author suggests which of the following
A. Chemists should feel daunted by the limitations of the application of their science.
B. Chemists should recognize that the future of chemistry is not likely to be much more illuminating than its past.
C. Chemists should exercise caution in creating a chemical that may affect contexts other than the one it was developed for.
D. Chemists should work hard to identify as many new chemistries as possible in order to make their science more complete.
E. Chemists should realize the need for collaboration in attempting to create chemicals less harmful to the environment.

[填空题]Problems Remain

[简答题]Starting a negotiation 开始谈判

Stating your position 申述立场

[单项选择]What does President Bush implies without stating out in his talk
A. The Americans are likely to make minor investments.
B. The Americans are not likely to make major investments.
C. The Americans don’t feel secure about the long-term economic performance.
D. The Americans feel secure about the long-term economic performance.

[单项选择]

For years there have been endless articles stating that scientists are on the verge of achieving artificial intelligence, that it is just around the corner. The truth is that it may be just around the corner, but they haven’t yet found the right clock.
Artificial intelligence aims to build machines that can think. One immediate problem is to define thought, which is harder than you might think. The specialists in the field of artificial intelligence complain, with some justification, that anything that their machines do is dismissed as not being thought. For example, computers can now play very, very good chess. They can’t beat the greatest players in the world, but they can beat just about anybody else. If a human being played chess at this level, he or she would certainly be considered smart. Why not a machine The answer is that the machine doesn’t do anything clever in playing chess. It uses its blinding speed to do a brute-force search of all possibl
A. thinks that scientists are about to achieve artificial intelligence
B. doubts whether scientists can ever achieve artificial intelligence
C. does not think that scientists have found real artificial intelligence
D. is sure that scientists have achieved artificial intelligence

[单项选择]Most of the people who appear most often and most gloriously in the history books are great conquerors and generals and soldiers, whereas the people who really helped civilization forward are often never mentioned at all. We do not know who first set a broken leg, or launched a seaworthy boat, or calculated the length of the year, or manured a field; but we know all about the killers and destroyers. People think a great deal of them, so much so that on all the highest pillars in the great cities of the world you will find the figure of a conqueror or a general or a soldier. And I think most people believe that the greatest countries are those that have beaten in battle the greatest number of other countries and ruled over them as conquerors. It is just possible they are, but they are not the most civilized. Animals fight; so do savages; hence to be good at fighting is to be good in the way in which an animal or a savage is good, but it is not to be civilized. Even being good at getting
A. very young children are not civilised.
B. evolution does not help civilization forward.
C. human beings are still at the beginning of their life on earth.
D. human beings have learnt very little in a very long time.