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| 作者:不明 来源:www.pccode.net 整理 发布时间:2007-1-23 10:36:10 发布人:wongrs | |
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ter. By analyzing the speed of sound through the ocean over time, the scientists will be able to determine if our planet is warming up. The experiment was nearly cancelled more than a year ago because environmental groups fear that the sound will confuse or harm the sea animals. So, scientists are conducting tests on the animals first. The researchers lowered a loud speaker that emits low frequency sound about 1,000 meters beneath the ocean. Scientists at the site transmit sound waves into the ocean. Radio transmitters attached to some of the sea animals help the researchers keep track of the animals’ movements. If sea animals are distressed by the sounds, they would swim away from the speakers. So far, there aren’t any signs that the animals are being harmed. Researchers at the site noticed that large numbers of sea animals swim near the speaker whether it was turned on or off, but it is still too soon to know for sure, the scientists admit. The test will continue through September. “If all goes well,” they said, “we can begin measuring temperature changes on our planet.” (241 words) W:You now have 30 seconds to check your answers to questions 11—13. M:Questions 14—16 are based on the following talk about love and hate. You now have 15 seconds to read questions 14— 16. W:We have saved as a final set of emotions the two most important emotions pertaining to other people: love and its opposite, hate. Love can be seen everywhere. Yet surprisingly, love has been the subject of less scientific research than other emotions, such as anger and fear. The reason for this may be two fold. First, love is a very complex emotion, difficult to describe and measure. Secondly, unlike many extreme emotions, extreme love is generally not a problem; thus less medical attention has been paid to it. What is love? This is a complex question and requires a complex answer. Love is an enduring, strong, positive attraction and feeling for another person or thing. But it is more than this. It also involves feelings of caring, protection, excitement, and tenderness. When two people are in love, they feel drawn to one another; they greatly enjoy each other’s company; and they may be sexually attracted to one another. Sometimes it is easier to think in terms of different kinds of love: “puppy” love, romantic love, brotherly love, and so forth. Though they differ in some respects, they share one important characteristic: a strong positive feeling
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