| {{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} |
[听力原文]11-15
Many of the world’s people are concerned about the decreasing whales in the oceans and seas. People have hunted whales since about the eleventh century. Certain types of whales have been hunted too much. Recently, their numbers have decreased so much that they are in danger of disappearing.
Why do people want to save the whales The reason is that whales help to keep a balance between plants and animals. People have disturbed this balance. People’s wastes increase the amount of salt in ocean and seawater. The increased salt helps some plants and some very small animals to grow. These plants and animals can be harmful to fish. Whales eat enormous amounts of the plants and animals that live in very salty water. Therefore, whales are very important because they keep the ocean environment clean enough for fish.
Cindy Hess began her automotive career as a Design and Development Engineer with Chrysler, in the fall of 1977. Today, she is Vice-President of Daimler Chrysler, and head of the Small Car Platform Engineering Department which is directly responsible for the design and development of the Neon, Doge Viper, and all future small cars.
"Many different departments are involved, in bringing a product to market," said Hess, referring to the 2000 Neon. "A company looks into renewing a particular vehicle when its marketplace demand is good, and the profits increase our shareholder’s value," explained Hess. "We look to our market research in determining which options we’ll keep the same or delete, and which ones we want to add to improve our appeal."
Now that the Neon 2000 is on the market, her team will use survey and research results to determine which option packages work best for the consumer, and what improvements, if any, ne
A. When it sells well and brings in a good profit.
B. When it needs improvement to meet the needs of users.
C. When some of its features have to be deleted.
D. When certain options have to be adde
Government officials reported three new cases of mad cow, bringing the total so far this year to 99. Last year, France recorded just 31 cases of the mad cow disease. The rising numbers are in part (1) a new testing program that focuses on cows that are most (2) . That program has (3) 39 cases. But still 60 new cases were identified in the usual way, (4) were found in 1999. Many scientists (5) that this year, five years after safety precautions were (6) , the number of cases would be (7) .
The rise in cases has (8) some scientists to question whether the disease can be transmitted in ways not yet understood. Scientists are still (9) the disease, first recognized in cows in 1986.
It appears that it is not caused by a bacteria, virus or fungus, but (10) infectious particles called prion, perhaps (11) a virus or other agent. The disease kills cells in the brain, (12) it spongy and fu
A. more
B. far more
C. far more than
D. less than
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