2021年11月6日托福考试综合写作回忆和解析

　　2021年11月6日托福写作回忆和解析——本文由环球教育天津学校褚楚老师整理提供，对于本次写作考试综合点评：本次考试的综合题目和独立题目，难度较低，综合写作虽然不是以往重复过的题目，但是有过类似话题，独立任务更是常见题，所以大家积极去刷以往的真题，多拓展思路，精准审题，丰富展开例证，祝取得好的成绩。

　　综合写作

　　话题分类生态

　　考题回忆总论点卡罗来纳湾洼地是由于陨石撞击形成的

　　阅读部分1. 卡罗来纳湾洼地的形状不对称。一边的白沙总是高于另一边。陨石碎片撞击地面会形成坑，由于倒塌的角度不一样，所以洼地不同面的深度不一样。

　　2. 洼地附近的沙子没有铁涂层。陨石碎片撞击地面会产生巨大的热能，沙子在高温中会丢失铁元素。

　　3. 人们在一些洼地里发现了巴基球。这是一种特殊的碳的形态，需要在极大的压强下才能产生，陨石强大的撞击力足以产生巴基球。

　　听力部分1. 洼地的不对称可能是由于洋流产生的。这些洼地曾经都是在水下的，所以有可能是海底的洋流使得沙子向同一方向堆积。

　　2. 如果是由于高温使得沙子丢失铁元素的话，那么高温也会将沙子融化成玻璃。但是并没有找到玻璃的痕迹，所以不可能是陨石造成的。有可能是化学反应导致沙子中的铁元素丢失。

　　3. 如果是陨石撞击形成巴基球，那么巴基球应该广泛存在于所有地方，但实际上只有少数几个海湾发现了巴基球。更有可能是闪电形成的。

　　解题思路阅读部分仔细看，很多时候能够给我们一些听力内容方面的提示。

　　听力的细节一定尽可能的给全。

　　参考范文Both reading and listening talks about the Carolina Bays is formed by meteorite impact. According to the reading, there are three reasons with it, yet the professor in the listening casts doubt on the statement in the reading.

　　First, the reading points out the fact that the shape of the bay is asymmetric, which means it’s very likely that it is the meteorite impact that brought about different depth in the pit. Yet the listening part explains that the asymmetry is probably because of the ocean current. The pit used to be under water, so the current may be the reason why all sands has accumulated toward one direction.

　　Second, the passage presents that the sand around the pit has no iron coating. Iron element may be lost because of the heat from metrorite impact. However, the listening makes it clear that if the heat makes sand lose iron, then the heat will melt sand into crystal glass. But no trace of glass has been found. So it couldn’t be meteorite impact. Probably some chemical reaction caused the loss of iron inside the sand.

　　At last, buckyball, one kind of special form of carbon, has been found in the pit. The buckyball only can be formed under great physical pressure so that meteorite impact is severe enough to creat the buckyball. But the professor mentions that if the meteorite impact created buckyball, then it should be existent everywhere. But the fact is that buckyball has only been found in a few bays, so it’s maybe because of the lightening.［259］