下面就让小编来为大家介绍一下这篇托福听力TPO8学习笔记的相关内容吧，这是小编的一些见解，以便帮助大家更加充分的理解TPO真题，希望能够给正在准备托福听力的考友们带来帮助。
一、难词注解
periodic table [化学] 周期表
Predictive adj. 预言性的;成为前兆的
Proton n. [物] 质子
Properties n. 性能;道具，内容(property的复数形式)
Weighable adj. 可秤的;可量重的
Spontaneouslyad v. 自发地;自然地;不由自主地
二、长难句分析
And the prediction was that an element with that atomic number existed somewhere, but it just hadn’t been found yet. 预测正是指那个原子数确定但还仍未被发现的元素。
难词释义：
atomic adj. 原子的，原子能的;微粒子的
难句类型：
宾语从句，was that+从句，with短语作伴随状语
三、考题对应考点
12.教授先解释了 element 的 predictable。又说 Um, actually, that reminds other, other very good example of all these, element 43. See on the table, the symbol for element 42 and 44.可知43 号元素是predictable 的。也就是B选项。
13. Right, well, early versions of the periodic table had gaps, missing elements.强调原则，Right, well, 语气发生变化，从这句话就能推断出选择 D 了。
14.That’s right, but they named it Technetium to emphasize that it was artificially created with technology. 转折原则，but后面的内容是重点，The element was create artificially，也就是C选项。
15.Exactly, because of radioactive decay, element 43 doesn’t last very long. And therefore, if that ever had been present on earth, it would decay ages ago.So the Masurium people were obviously wrong, and the Technetium people were right. Right?强调原则，Exactly后面的内容是要强调的部分。由because of radioactive decay, element 43 doesn’t last very long.可知，Element 43 has a very fast rate of decay，也就是A.
16.Maybe, but it’s hard to tell for sure after all this time, if Ida Tack’s group did discover element 43. They didn’t, um, publish enough details on their method or instruments for us to know for sure. 不确定是否发现了 43，因为证据不足。所以选择C.
17.And you know here’s an incredible irony, Ida Tack, the chemist led the Musurium team, well, she was the first to suggest that Uranium could break up into small pieces but she didn’t know that that was the defense of her own discovery of element 43. 前一句教授在说 Ida 这个人是第一个发现铀可以分解成更小粒子的，但正是这个发现阻止了她发现 43 号元素。所以选择C.
听力文本结构框架：
这篇文章主要讲的是学生不理解元素周期表是可预测的，接着教授提到把元素按他们的特质分类，后面就42、43、44号元素进行分析讨论。
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