高中课本听力北师大版模块7:Unit 22 lesson 2-2
日期:2012-04-19 10:46

(单词翻译:单击)

Another endangered species, the Yangtze Dolphin,is China's only fresh-water dolphin and is sometimes called' the panda of the Yangtze River'because it is so rare. Its numbers are decreasing for several resons including the pollution of the river and the fact that they are often caught and killed in fishermen's nets. Hunting in the past also played a role in rapidly reducing numbers. Education programmes have been set up but much more needs to be done to protect these animals.The tiger is a species under severe threat.In the 1950's, there were eight sub-species of tiger, but three are now extinct.All five remaining species are endangered and although they are protected, the total number of tigers worldwide has dropped to 5,000.Why is this?Tigers are killed by hunters because it is falsely believed that parts of the tiger's body are good for people's health.Another reason for numbers have decreased is the loss of the tiger's natural habitat.To save these beautiful animals, we need to stop illegal hunting and extend conservation programmes.
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重点单词
  • threatn. 威胁,凶兆 vt. 威胁, 恐吓
  • severeadj. 剧烈的,严重的,严峻的,严厉的,严格的
  • speciesn. (单复同)物种,种类
  • protectvt. 保护,投保
  • rareadj. 稀罕的,稀薄的,罕见的,珍贵的 adj. 煎得
  • habitatn. (动植物的)产地,栖息地
  • illegaladj. 不合法的,非法的 n. 非法移民
  • conservationn. 保存,防止流失,守恒,保护自然资源
  • extendv. 扩充,延伸,伸展,扩展
  • pollutionn. 污染,污染物