托福写作高分范文——卡罗来纳弯洼地的成因|上海新航道

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托福写作高分范文——卡罗来纳弯洼地的成因

2017/12/12 17:03:35来源：新航道作者：新航道

雅思/托福/国际备考寒假班

托福模考，最新时间出炉！

多邻国英语考试-2024国际学校及出国留学考试新选择

摘要：为了帮助各位备考托福同学们更好的熟悉最新托福写作题目内容，今天，上海新航道托福培训学校小编给大家带来了最新托福写作高分范文——卡罗来纳弯洼地的成因。希望帮助考生对照文本更好的研究真题，充分备考，争取理想成绩，实现留学梦想。

为了帮助各位备考托福同学们更好的熟悉最新托福写作题目内容，今天，上海新航道托福培训学校小编给大家带来了最新托福写作高分范文——卡罗来纳弯洼地的成因。希望帮助考生对照文本更好的研究真题，充分备考，争取理想成绩，实现留学梦想。

托福写作综合参考范文：

The reading shows three features of “Carolina bays” to explain why meteorite impact cause these depressions. On contrary, the professor thinks all of them are unconvincing.

First, the writer states that the depressions are asymmetrical: the sand being higher on one side of the depression than the other, which caused by meteorite impact. However, the professor points out that another phenomenon also can explain this asymmetrical pattern. In fact, the areas containing the depressions were once underwater. So, deep sea current gradually dug the depressions and deposited sand in the direction of the current.

Second, the author demonstrates that intense heat created by meteorite impacts burned the iron out of the sand. But the speaker contradicts this point by saying that the amount of heat needed to burn the iron coating off sand grains is so high that it would melt the sand into glass. However, the problem is the evidence of glass doesn't be found in the depressions. Therefore, it’s possible that iron is removed by some chemical process.

Third, the professor refuses the viewpoint showed in the passage by claiming that the buckyball evidence is found in a few the “Carolina Bays”. If buckyballs are formed because of meteorite impact, each of the depression should have them. Furthermore, the buckyballs in a few depressions may be caused by lightning.

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