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托福综合写作出色作文复习资料:环保材料乙醇

时间:2022-5-10 作者:爱思英语学习网

托福综合写作阅读材料:

Ethanol fuel, made from plants such as cornand sugar cane, has been advocated by some people as an alternative to gasolinein the United States. However, many critics argue that ethanol is not a goodreplacement for gasoline for several reasons.

乙醇燃料是从玉米或者甘蔗之类的植物中提取的。在美国,一些人倡导用乙醇燃料来代替汽油。然而,不少评论家觉得一些缘由使得乙醇燃料不是好的汽油替代品。

First, the increased use of ethanol fuelwould not help to solve one of the biggest environmental problems caused bygasoline use: global warming. Like gasoline, ethanol releases carbon dioxide intothe atmosphere when it is burned for fuel, and carbon dioxide is a greenhousegas: it helps trap heat in the atmosphere. Thus, ethanol offers noenvironmental advantage over gasoline.

第一,用汽油带来的最大的问题之一是全球变暖,而对于乙醇燃料用的增加并不可以解决这个问题。同汽油一样,乙醇燃烧后向大方释放二氧化碳,而二氧化碳是温室气体。它会维持大方层内的温度。因而,相对于汽油来讲,乙醇并没环保优势。

Second, the production of significantamounts of ethanol would dramatically reduce the amount of plants available foruses other than fuel. For example, much of the corn now grown in the United Statesis used to feed farm animals such as cows and chickens. It is estimated that ifethanol were used to satisfy just 10 percent of the fuel needs in the UnitedStates, more than 60 percent of the corn currently grown in the United Stateswould have to be used to produce ethanol. If most of the corn were used TOProduce ethanol, a substantial source of food for animals would disappear.

第二,乙醇商品的很多增加会致使用于其他目的作物数目降低。譬如,在美国不少的玉米都是用来作动物饲料来喂养牛和鸡。可以推断,假如乙醇只满足美国对燃料需要的10%,那样美国就要用目前玉米产量的60%用来制造乙醇燃料。假如把玉米产量的大多数用来生产乙醇燃料的话,那样家畜主要的食物出处就不复存在了。

Third, ethanol fuel will never be able tocompete with gasoline on price. Although the prices of ethanol and gasoline forthe consumer are currentlyabout the same, this is only because of the help inthe form of tax subsidies given to ethanol producers by the United Statesgovernment. These tax subsidies have cosplayt the United States government over $11billion in the past 30 years. If the United States government were to sTOPhelping the producers in this way, the price of ethanol would increase greatly.

第三,乙醇燃料燃料在价格上永远没办法与汽油角逐。虽然现在对买家来讲,乙醇燃料和汽油的相差无几,但只不过由于美国政府以税收补贴的形式补助乙醇燃料制造商。这个税收补贴在过去的三十年花掉了美国政府110亿USD。假如美国政府停止以这种形式帮制造商,那样乙醇燃料的价格会大幅升高。

托福综合写作阅读部分需要提取的看法是:

– Main point: 乙醇燃料没办法替代汽油

– Sub point 1: 燃烧乙醇燃料会排放二氧化碳,导致全球变暖

– Sub point 2: 制造乙醇燃料致使畜牧业缺少饲料

– Sub point 3: 乙醇价格过高,依靠政府补贴

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