英语四级新闻听力练习题分享 四六级报名

　　下面小编跟大家一起了解英语四级新闻听力练习题分享。希望对大家的学习有所帮助。
　　1.
　　A. About one-sixth.
　　B. About 5 percent.
　　C. About 17 percent.
　　D. About 6 percent.
　　2.
　　A. Rising sea level.
　　B. Loss of biomass.
　　C. Being more acidic.
　　D. Less oxygen.
　　二、听力文本
　　The world's oceans will likely lose about one-sixth of their fish and other creatures within 100 years if climate change continues on its current path. These are the findings of a wide-reaching, computer-based study by an international team of marine biologists. Every degree Celsius that the world's oceans warm, their biomass — or the total weight of all the marine animal life — is expected to drop five percent, the study also found. The study predicts that if there is no change in the rate of worldwide greenhouse gas production,
　　there will be a 17-percent loss of biomass by the year 2100. But, if the world reduces carbon pollution, biomass losses could be limited to only about 5 percent. Warming temperatures are the biggest issue. But climate change also produces oceans that are more acidic and have less oxygen. This also harms sea life. Much of the world depends on the oceans for food or work, the scientists say. The possible effects of the predicted losses of animal life are huge. Scientists had already believed climate change would likely reduce future ocean life. But past computer-based studies looked at only part of the picture or used only one model. The latest study used six different computer models to give the best picture look yet.
　　Question 1: According to the news report, how many fish and other creatures in the ocean will disappear within 100 years if climate change continues on its current path?

　　Question 2: According to the news report, which of the following is not mentioned as one of the consequences of climate change?
　　三、重点词汇
　　1. creature: any large or small living thing that can move independently 生物；动物
　　2. marine: related to the sea or sea transport 海（洋）的；航海的；海运的
　　3. Celsius: (of) a measurement of temperature on a standard in which 0° is the temperature at which water freezes, and 100° the temperature at which it boils 摄氏温度
　　4. biomass: the total mass of living things in a particular area 生物量
　　5. acidic: containing acid 酸性的
　　四、背景知识
　　美国《国家科学院院刊》上的一项研究报告指出，每当海洋温度升高1℃，海洋动物的总质量预计会下降5%。该报告还指出，如果全球的温室气体排放量继续保持在目前的水平，意味着到2100年，海洋生物量的减少将达到17%，也就是相当于我们即将失去大约六分之一的海洋生物。
　　五、参考答案
　　Question 1: A
　　Question 2: A