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英['lɪs(ə)n] 美['lɪsn]
vi. 听,倾听;听从,听信
n. 听,倾听

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草莓小菇凉:说的非常好,十分有道理,棒棒棒!

06-08 15:44:55

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托福TPO27综合写作阅读+听力原文+满分范文

2018-12-19 12:34:13 发布 来源:雷哥托福 阅读量:2694

雷哥托福小托君给大家分享TPO1-33综合作文部分的阅读和听力文本全集与综合作文的满分作文,以及满分作文的解析。如果自己的托福综合作文分数如果可以很给力的话,就已经搞定了15分的分数,可以极大地缓解托福独立作文的压力。做托福TPO模考之后,可以根据这里面的听力的文本,来检验自己的听力内容是否抓的足够好,尤其是要看写的够不够全!很多时候,我们的综合作文之所以分低,就是因为听力写的不全!

TPO27 综合写作听力+阅读原文

Reading

The little ice age was a period of unusually cold temperature in many parts of the world that lasted from about the year 1350 until 1900CE. There were unusually harsh winters, and glaciers grew larger in many areas. Scientist have long wondered what caused the Little Ice Age. Several possible causes have been proposed.

First, the cooling may have been caused by disrupting of ocean currents. Before the Little Ice Age, there was a period of unusually warm weather during which glaciers melted. These melted glaciers sent a large amount of cold freshwater into the Gulf Stream, a large ocean current that strongly affects Earth's climate. Some scientists believe that this freshwater was enough to temporarily disrupt the Gulf Stream. Such a disruption could have caused the Little Ice Age.

Second, volcanic eruption could have caused the Little Ice Age. When volcanoes erupt, they send dark clouds of dust and sulfur gas into the atmosphere. These clouds, which can spread over great areas, block some sunlight from reaching Earth's surface. This can decrease the global temperatures. Scientists know of several volcanic eruption that took place during the Little Ice Age.

Third, substantial decreases in human populations may have contributed indirectly to the cooling of the climate. For a variety of reason(disease, warfare, social disruption), the human population just before the Little Ice Age and during the early part of it was lower than it had been in a long time. Forest trees started growing on fields that were no longer used for agriculture. Since trees absorb carbon dioxide, a greenhouse gas, they decrease the greenhouse effect that keeps Earth warm. With more forest trees carbon dioxide, earth became cooler.


Listening

Unfortunately,the arguments of the reading passage are a little out of date. Scientists now have new information that shows that none of the ideas the reading passage discusses could account for the Little Ice Age.

First,about the Gulf Stream.Scientists now know that disrupting the Gulf Stream would cause cooling only in Europe and North America,but the Little Ice Age also affected the Southern hemisphere,in places like New Zealand and Southern Africa for example.Since the disruption of the Gulf Stream cannot explain why these southern areas became colder,it cannot explain the Little Ice Age.

Second.the volcanoes theory.1t’s true that if volcanic eruptions put enough dust into the atmosphere.the result can be a cooler climate.But large amounts of volcanic dust in the atmosphere would have also produced striking visual effect that people would have noticed at the time.For example.Dramatically colorful Sunsets or snow being grey or brown instead of white.But there are almost no reports of anything like that routinely happening during the Little Ice Age.So it seems that the volcanic eruptions during that period were simply not strong enough to release the large amounts of dust needed to lower global temperatures.

Third, about forests on farmland stopping the warming greenhouse effect by removing carbon dioxide.There just was not enough time for this effect to work.The human population grew back to previous levels fairly quickly,which meant that forests were soon being cut down again to clear fields for the crops needed to feed the growing population.As a result,we know that the forests mentioned in the reading passage were not there long enough to cause the long—term global cooling of the climate.

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