#托福#综合写作TPO32的内容带了点神秘的色彩。20世纪60年代到80年代，俄罗斯潜水艇的船员们偶尔听到一些奇怪的声音，这些声音听起来像是青蛙的叫声，所以他们称之为“quackers”。但是，潜水艇的声纳却检测不到任何物体。所以在阅读中，介绍了科学家提出的三个理论。
虎鲸
第一个理论是说这些奇怪的声音是来自于虎鲸的求偶行为。
大王乌贼
第二种理论说道，这些声音来自于大王乌贼，它们拥有较为复杂的大脑，或许可以发出这种声音。
潜艇
第三种理论说的是，这些声音来源于其他国家的潜水艇。
但是听力中分别对这些理论给出了反驳。第一，虎鲸通常主要生活在水面，而不是海洋深处，不太可能被深海的潜艇检测到声音。第二，大王乌贼一直都生活在这片海域，无法解释声音突然开始突然结束。第三，目前为止，人类还没有办法制造出速度如此之快、变换方向如此迅速的潜水艇。
阅读和听力笔记如下图：
TPO32综合写作笔记
接下来是这篇#综合写作#的范文，为我的原创写作。（文末有彩蛋问题，记得去评论区留言噢）
The reading passage proposes three theories to explain the causes of the strange sounds "quackers" that were detected by Russian submarines. In the lecture, the professor argues that although scientists remain unsure about what the sources of the bizarre sounds are, there are problems with all these theories.
First, the author in the reading passage maintains that the odd underwater sounds were in fact made by male and female orca whales when they were trying to attract a mate. However, the lecturer suggests that this theory is highly unlikely. Although orca populations were in the areas where the submarines were patrolling, they mostly lived near the surface of the water rather than deep in the ocean. Therefore, it is impossible for the submarines patrolling deep in the ocean to hear the orca sounds. Also, the orca sounds could have been detected by sonar if orca whales were nearby, but, in reality, sonar was unable to detect any solid moving objects.
Second, according to the reading, the "quackers" sounds were probably emitted by giant squid. However, the lecturer does not agree with this argument by citing a fact that these strange noises were first detected in 1960s, and the reports about them continued for two decades, but they suddenly completely disappeared in 1980s. As giant squid have always lived in the areas until today, they should not be the sensible reason to explain why the sounds suddenly started and suddenly stopped 20 years afterward.
Finally, the author in the reading suggests that the sounds were possibly caused by some military technology like the foreign submarines. On the other hand, the lecturer opposes the argument by saying that the objects that made the sounds "quackers" seemed to move around and changed directions very quickly, but the submarines are unable to do so. Also, submarines' engines generally make noises, but no such noises have been detected along with “quackers”. Today there is still no such technology to build submarines that can move so fast with such a silent engine.
(336 words)
练习完这篇#托福写作#，不禁感慨大自然的神奇，还有许多未知的事物等待人类去发掘。
你是否有特别想探究的未解之谜呢？可以在评论区留言分享。
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