C) To find out where the virus originates.
D) To look for the plants that could cure the disease.
Passage Three
Questions 18 to 20 are based on the passage you have just heard.
18.A) To determine whether the Earth's temperature is going up.
B) To study the behavior of some sea animals.
C) To measure the depths of the ocean.
D) To measure the movement of waves in the ocean.
19.A) They were frightened and distressed.
B) They swam away when the speaker was turned on.
C) They swam closer to "examine"the speaker when it was turned off.
D) They didn't seem to be frightened and kept swimming near the speaker.
20.A) To attract more sea animals to the testing site.
B) To drive dangerous sea animals away from the testing site.
C) To help trace the sea animals being tested.
D) To determine how sea animals communicate with each other.
Part ⅡReading Comprehension（35 minutes）
Directions: There are 4 reading passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A），B) ，C) and D）. you should divide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center.
Questions 21 to 25 are based on the following passage:
Cyberspace (网络空间)， data superhighways, mullet media-for those who have seen the future, the linking of computers, television and telephones will change our lives for ever, Yet for all the talk of a forthcoming technological utopia(乌托邦) little attention has been given to the implications of these developments for the poor. As with all new high technology, while the West concerns itself with the"how, "the question of "for whom "is put aside once again.
Economists are only now realizing the full extent to which the communications revolution has affected the world economy. Information technology allows the extension of trade across geographical and industrial boundaries, and transitional corporations take full advantage of it. Terms of trade, exchange and interest rates and money movements are more important than the production of goods. The electronic economy made possible by information technology allows the haves to increase their control on global markets-with destructive impact on the have-nots.
For them the result is instability. Developing countries which rely on the production of a small range of goods for export are made to feel like small parts in the international economic machine. As "futures"(期货)are traded on computer screens, developing countries simply have less and less control of their destinies.
So what are the options for regaining control? One alternative is for developing countries to buy in the latest computers and telecommunications themselves-so-called "development communications" modernization. Yet this leads to long-term dependency and perhaps permanent constraints on developing countries' economies.
Communications technology is generally exported from the U. S., Europe or Japan; the patents, skills and ability to manufacture remain in the hands of a few industrialized countries, It is also expensive, and imported products and services must therefore be bought on credit-credit usually provided by the very countries whose companies stand to gain.
Furthermore, when new technology is introduced there is often too low a level of expertise to exploit fir native development. this means that while local elites, foreign communities and subsidiaries of transitional corporations may benefit, those lives depend on access to the information are denied it.
21.From the passage we know that the development of high technology is in the interests of
_______ .
A) the rich countries B) scientific development
C) the elite D) the world economy
22.It can be inferred from the passage that _______ .
A) international trade should be expanded.
B) the interests of the poor countries have not been given enough consideration.
C) the exports of the poor countries should be increased.
D) communications technology in the developing countries should be modernized.
23.Why does the author say that the electronic economy may have a destructive impact on
developing countries?
A) Because it enables the developed countries to control the international market.
B) Because it destroys the economic balance of the poor countries.
C) Because it violates the national boundaries of the poor countries.
D) Because it inhibits the industrial growth of developing countries.
24.The development of modern communications technology in developing countries may _______ .
A) hinder their
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