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6unit 4 Global warming 全球在变暖


unit 4 Global warming 全球在变暖 THE EARTH IS BECOMING WARMER 全球在变暖— BUT DOES IT MATTER?一这要 紧吗? During the 20th century the ____________ 温度 of the earth rose about one degree Fahrenheit. That prob

ably does not seem much to you or me, but it is a rapid increase when compared to other natural changes. So how has this come about and does it matter? Earth Care's Sophie Armstrong __________探究 these questions. 在 20 世纪期间,地球温度大约升了华氏 1 度。这个数值对你我来说很可能是无所谓的,但是跟其他自然变化相比较而言,这却是一种 快速的增长。那么,这种温度的增长是怎么产生的呢?会产生什么影响呢? “关爱地球”组织 的索菲·阿姆斯特朗就在探究这些问题。 There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a___________ but natural phenomenon. 毫无疑问,地球 是在变暖 ,而地球变暖正是人类活动导致而成的,并非是一种无规律的自然现象。 All scientists___________ ___赞同 the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy. Some ___________ of this process are called "greenhouse" gases, the most important one of which is carbon dioxide. Dr Janice Foster explains: 所有的科学家赞同这种观点:人们为了生产能量而燃烧化石燃料(如 煤、天然气和石油等) ,从而引起了地球温度的升高。这个升温过程的一些副产品就叫做"温 室"气体,其中最重要的就是二氧化碳。贾尼丝·福斯特博士解释说: "There is a natural phenomenon that scientists call the 'greenhouse effect'. This is when small amounts of gases in the atmosphere, like carbon dioxide, methane and water ___________, trap heat from the sun and therefore warm the earth. Without the "greenhouse effect', the earth would be about thirty-three degrees Celsius cooler than it is. So, we need those gases. The problem begins when we add huge quantities of extra carbon dioxide into the ___________. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up." 有一种科学家称之为 ‘温 室效应'的自然现象。这种现象发生在大气层中少量的气体(如二氧化碳、甲皖、水蒸汽等) 吸收太阳的热量,因而使地球变暖的时候。如果没有这种‘温室效应',地球的温度将比现在的 温度还要低 33 摄氏度左右。因此,我们需要这些气体。当我们在大气层中增加了大量额外的 二氧化碳时,问题就来了。这意味着更多的热量被困在大气层中,从而引起全球温度上升。" We know that the levels of carbon dioxide have increased greatly over the last 100 to 150 years. It was a scientist called Charles Keeling, who made___________ measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. He found that between these years the

___________ dioxide in the atmosphere went up from around 315 parts to around 370 parts per
million (see Graph 2). "我们知道,在过去 100-150 年期间,二氧化碳的含量急剧增加了。 有一位 名叫查尔斯· 基林的科学家曾经把 1957-1997 年期间大气层中二氧化碳的含量作了精确的统 计。他发现,在这些年里,大气层中的二氧化碳含量从 315/1000 000 上升到 370/1000 0000 (见 表二,略) All scientists accept this data. They also agree that it is the burning of more and more fossil fuels that has ________ ___ 导致 this increase in carbon dioxide. So how high will the temperature increase go? Dr Janice Foster says that over the next 100 years the amount of warming could be as low as 1 to 1,5 degrees Celsius, but it could be as high as 5 degrees. 所有科 学家都接受这个数据。他们还赞同下述观点,正是由于越来越多燃烧化石燃料导致了二氧化 碳的增加。那么气温会升到多高?福斯特博士说,在今后的 100 年里,全球变暖的量可能低到 1-1.5 摄氏度, 但是也有可能高达 5 摄氏度。

However, the attitude of scientists towards this rise is completely different. On the one hand, Dr Foster thinks that the trend which increases the temperature by 5 degrees would be a

___________. She says, "We can't predict the climate well enough to know what to expect, but
it could be very serious." Others who agree with her think there may be a rise of several metres in the sea level, or ___________ severe storms, floods, ___________, famines, the spread of diseases and the disappearance of species. 然而,科学家们在对待升温的态度上却是大不相同 的。一方面,福斯特博士认为气温升高 5 度的趋势可能是一场大灾难,她说"对于未来的气候, 我们不可能作出精确的预测,但是那时的天气可能是很糟糕的。"同意她的观点的其他科学家 认为,全球变暖会导致海平面上升好几米:也有人预言会出现严重的风暴、洪涝、干旱、饥荒、 疫病和物种的绝灭。 On the other hand, there are those, like George Hambley, who are opposed to this view, believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be mild with few bad environmental consequences. In fact, Hambley states, "More carbon dioxide is actually a ___________ thing. It will make plants grow quicker; crops will produce more; it will encourage a greater range of animals — all of which will make life for human beings better."在另一方面,还有一些人,像科学家乔治·汉布利, 反对上面的观点,他们认为我们不必担心空气中会有高含量的二氧化碳。他们预言说,变暖的 情况不会很严重,对环境的影响也不会太坏。汉布利实际上是这样说的: "二氧化碳含量的增 加实际上是件好事,它使植物成长更快,庄稼产量更高,还会促进动物的生长一一所有这些都 能改善人类的生活。" Greenhouse gases continue to build up in the atmosphere. Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries. No one knows the effects of global warming. Does that mean we should do nothing? Or, are the risks too great? 温室气体继续在大气层中聚集。 即使我们开始减少二氧化 碳和其他温室气体的含量,在(未来)几十年或几个世纪内,气候仍会持续转暖。没有人知道全 球变暖会带来什么样的影响。这是不是意味着我们就不必采取任何措施昵?还是说,这样不采 取任何措施危险性会很大呢? 改错和翻译:THE EARTH IS BECOMING WARMER — BUT DOES IT MATTER? During the 20th century the temperature of the earth rose about one degree Fahrenheit. That probably does not seem much to you or me, but it is a rapid increase when comparing to other natural changes. So how has this come about and does it matter? Earth Care's Sophie Armstrong explores these questions. There is no doubt whether the earth is becoming warmer (see Graph 1) and that it is human activity that has caused this global warming rather than a random but natural phenomenon. All scientists subscribe to the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy. Some byproducts of this

process are called "greenhouse" gases, the most important one of which is carbon dioxide. Dr Janice Foster explains: "There is a natural phenomenon that scientists call the 'greenhouse effect'. This is when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth. Without the "greenhouse effect', the earth would be about thirty-three degrees Celsius cool than it is. So, we need those gases. The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up." We know that the levels of carbon dioxide have increased great over the last 100 to 150 years. It was a scientist called Charles Keeling, who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. He found that between these years the carbon dioxide in the atmosphere went up from around 315 parts to around 370 parts per millions All scientists accept this data. They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. So how high will the temperature increase go? Dr Janice Foster says that over the next 100 years the amount of warming could be as low as 1 to 1,5 degrees Celsius, but it could be as high as 5 degrees. What can we do about global warming? 我们能做些什么关于全球变暖? Dear Earth Care亲爱的地球关怀,

I am doing a project_____ _______ ______(代表)my school about global warming. Sometimes I feel that individuals can _____ _______ _______(有很少影 响)on such huge environmental problems. However, I still think people should __________提倡improvements in the way we use energy today.As I'm not sure where to start with my project,I would __________感激 any suggestions you may have. 我 在代表我的学校做一个关于全球变暖的项目。有时我觉得个人有很少的影响对如此巨大的
环境问题。但是,我仍然认为今天人们应该提倡改善我们使用能源的方式。我不知道从哪里

开始我的项目, 你有的任何建议我都会感激。 Dear Ouyang Guang, 亲爱的欧阳广,

There are many people who have a _____________ (承诺) yours,but they do like not believe they have the power to do anything to improve our environment.That is not true. Together, ______________ ______ ______ ______ ___________(众人拾 柴火焰高). We do not have to ______ ____ ______ (忍受)pollution. 有许多人有
一个像你这样的承诺,但他们并不相信他们有能力做任何事情来改善我们的环境。是不真实 的。在一起,每个人都可以有很大的影响。我们不需要忍受污染。

The growth of greenhouse gas, carbon dioxide in the air actually comes as a result of many things we do every day. Here are a few suggestions on how to reduce it.They should get you started with your project. 温室气体,空气中的二氧化碳的增长,其实是因
为我们每天都在做的许多事。 这里有一些建议如何减少它。 他们应该可以帮你开始你的项目。

1 We use a lot of energy in our houses. It's OK to leave an __________ ____ (电器 设备) on so long as you are using it--if not, turn it off!Do not be casual about this. So if you're not using the lights, the TV, the computer, and so on, turn them off. And if you are cold,put on more clothes instead of ____ _____ the _____ (开大暖气)。
我们在我们的家里用很多的能量,。 把电器开着没有关系, 只要你使用它-如果不是,把它关掉! 关于这点不要随便。所以,如果你不使用电灯、电视、电脑等,关掉他们。如果你觉得冷,多穿 点衣服,而不是开大暖气。 2 Motor vehicles use a lot of energy--so walk or ride a bike if you can. 机动车辆使 用大量的能量,所以步行或骑自行车,如果可以的话。

3.R______ (回收) cans bottles, plastics bags and newspapers if circumstances allow you to. It takes a lot of energy to make things from new materials, so, if you can, buy things made from _______ ________ (回收材料).回收罐、瓶子、塑胶袋、报纸
如果情况允许你的话。需要很多的能量去用新材料制造东西,因此,如果可能,买回收材料 制造的东西。

4 Get your parents to buy things that are economical with energy--this includes cars as well as smaller things like f__________(冰箱) and m _______(微波炉). 让你父母节能的东西——这包括经济能源汽车和冰箱和微波之类的小东西。 5.Plant trees in your garden or your school yard as they _____ (吸收)carbon dioxide from the air refresh your spirit when you look at them. 在你的花园里种树或者
你的校园,因为它们会吸收空气中的二氧化碳和当你看他们时,清新你的精神。

6.Finally and most importantly be an educater.Talk with your family and friends about global warming and tell them what you've learned. 最后和最重要的是,成为一位
教育者。跟你的家人和朋友谈论全球变暖,并告诉他们你已经学到的东西。

Remember—your______________ _______(你的贡献很有价值). Earth Care关爱地球


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