原创资源：新人教版-选必B3U3 Summary语境记单词
选择性必修三 Unit 3
宁夏银川市第二中学 吕燕琴
CLIMATE CHANGE REQUIRES THE WORLD'S ATTENTION
气候变化需要全世界的关注
There is little doubt that Earth is getting warmer and warmer (see the graph). In 2013, a lot of people were shocked by a news photo of a dead polar bear, which appeared to have starved to death without finding seals because of melting ice. This alarming case showed how the increase in temperature had an impact on Earth's ecology.
Climate scientists think there are two reasons for the increase in the global average surface temperature. The process of “natural greenhouse effect” keeps Earth's climate warm and habitable and makes it possible for Earth to sustain life. However, the “man-made” greenhouse effect caused by burning fossil fuels makes more heat energy trapped in the atmosphere and causes Earth’s surface temperature to rise quickly.
There is comprehensive evidence that temperature rise has led to an increase in extreme weather and natural disasters worldwide. With news reports about extreme rainstorms and heatwaves frequently broadcast , this warming trend will probably continue and repay at a higher price without appropriate actions. This requires the attention of people all over the world and the needs for the governments to make policies and take appropriate measures to reduce greenhouse gas emissions. As individuals, we can reduce our "carbon footprint" by restricting carbon dioxide. It is also our responsibility to seize every opportunity to educate everyone about global warming along with its causes and impacts.
毫无疑问，地球正在变得越来越暖和(见图表)。2013年，因为一张北极熊尸体的新闻照片让很多人震惊，这只熊似乎是饿死的, 因为冰川融化，北极熊捕猎不到海豹。这一令人震惊的案例表明气温升高对地球生态产生了怎样的影响。
气候学家们认为有两大因素导致全球表面平均温度的上升。“自然”温室效应的过程使得地球气候保持温暖和适宜居住， 维持生命成为可能。然而，通过燃烧化石燃料等造成的“人为”温室效应使更多的热量被困在大气中，导致地球表面温度迅速上升。有全面的证据表明，气温上升已导致世界范围内极端天气和自然灾害的增加。新闻报道经常播报 极端暴雨和热浪的新闻, 如果不采取适当的行动，这种变暖的趋势可能会继续下去，付出更高的代价。这需要全世界人民的关注和各国政府需要制定政策并采取适当措施来减少温室气体排放。 作为个人，我们也可以通过限制二氧化碳的量来减少我们的“碳足迹”。我们有责任抓住每一个机会，让每个人了解全球变暖及其原因和影响.
Passage 2 REDUCING WATER POLLUTION IN THE LI RIVER减少漓江水污染
The beautiful Li River is one of the most well-known tourist destinations in Guangxi , attracting millions of domestic and foreign visitors each year. However, with the growth in tourism, volume of tourists, local population, as well as the number of commercial and industrial enterprises, water quality in the Li River has suffered greatly，ending up with more garbage and chemicals in the river and causing a frequently decrease in the number of fish species.
Finally, A comprehensive initiative of raising environmental awareness and a series of urgent steps have been started to restore the river's original beauty. Dozens of polluting enterprises have been closed or moved. The government set up strict regulations regarding further industrial development, tour boat routes and garbage disposal methods. Meanwhile, they have started to carry out inspections regularly and fine tourist organisations for abuses. With such campaigns in effect, China's waterways are heading towards a clean and sustainable future. It is believed that the beauty of the Li River will be preserved for future generations.
美丽的漓江是广西最著名的旅游目的地之一，它每年吸引数以百万计的国内外游客。然而，随着旅游业的发展，游客量的增长，当地人口迅速增长，以及商业和工业企业的数量增加，漓江的水质遭到了严重破坏, 导致河中垃圾和化学物质的增加，最终导致鱼类物种数量日益减少。
最终，为恢复河流的原貌，一项全面的提高环境意识的倡议及一系列的紧急措施被启动。许多污染企业被关闭或搬迁；政府制定了关于进一步发展工业的严格章程和游船路线以及垃圾处理方法的规定。与此同时，他们开始定期进行检查，并对滥用职权的旅游组织进行罚款。随着这些行动的生效，中国的水资源正朝着洁净的、可持续发展的未来迈进。人们相信漓江的美景将世代留存下去。
PPT
选必B3U3 语境记单词
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