下面就让小编来为大家介绍一下这篇托福听力TPO5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
Spectroscopy n. [光] 光谱学
Discipline n. 学科;纪律;训练;惩罚 vt. 训练，训导;惩戒
spectrum n. 光谱;频谱;范围;余象
binding n. 装订;捆绑;粘合物v. 捆绑(bind的ing形式)adj. 有约束力的;捆绑的
Pigments n. [颜料] 颜料，染料;[物][生化] 色素(pigment的复数形式)
Zinc n. 锌vt. 镀锌于…;涂锌于…;用锌处理
Invasive adj. 侵略性的;攻击性的
deteriorated adj. 恶化的;已变质的vt. 恶化(deteriorate的过去式);蚀薄
二、长难句分析
Now, Laser Spectroscopy, which is the focus of your assignment, works by measuring very precisely what parts of the spectrum are absorbed by different substances.
难词释义：
Laser Spectroscopy激光光谱学
难句类型：
which引导的非限制性定语从句修饰Laser Spectroscopy
三、考题对应考点
6. Now, Laser Spectroscopy, which is the focus of your assignment, works by measuring very precisely what parts of the spectrum are absorbed by different substances. And it has applications in a lot of different disciplines. 开头原则中的背景引入式，之前教授说了一大段来 review Spectroscopy 的概念而 now 之后的内容才是今天的重点，也就是具体分析 Laser Spectroscopy 的应用，也就是 To give an example of a practical use for a particular scientific technique，所以选择B
7.Then we compare these signatures with those of particular elements like zinc or lead, to determine what the pigment was made of. So, you can see why this type of analysis requires a knowledge of the history of pigments, right? How and when they were made?
要鉴定画的真伪还需要对 pigment 的年代进行分析这也是需要 art historians 的原因，只有与该艺术领域的学者进行合作才能把 spectroscopes 的公用完全发挥，也就是这项鉴定工作 requires collaboration,所以选择C
8. We know the spectral signature of zinc. And it matches that of the paint sample. We also know that zinc wasn't discovered until the 18th century. And since Rembrandt lived during the 17th century, we know he couldn't have painted it. 特殊年份原则，通过用 spectroscopy 对 zinc 进行分析结合 art historian 对于 pigment 的知识得出该画不是真迹，从这个过程来说明 spectroscopy 是如何帮助鉴定的，也就是 D 选项。
9.Now, Spectroscopy has a very distinct advantage over previous methods of analyzing our works,because it's not invasive. You don't have to remove big chips of paint to do your analysis, which is what other methods require. All you do is train the microscope on tiny flecks of paint and analyze them. 强调原则，now的语气是提示大家注意的信号词，从教授对 Spectroscopy 的操作方法介绍可得知它优越于其他鉴定方法的地方就是它 not invasive 也就是不会破坏作品因此选 A
10.Well, spectroscopy can review the composition of those touchup layers too. So we can find out when they were applied. Then if we want to undo some bad restoration attempts, we can determine what kind of process we can use to remove them to dissolve the paint and uncover the original.强调和结果原则，well，so后面的内容是重点，spectroscopy 在 restoration 的应用也就是可以用它消除和溶解修复的不好的部分。也就是 D选项。
11.教授重复的内容：Now a word or two about restoration
Now a word or two about restoration. Sometimes original art works appear questionable or inauthentic because they‟ve had so many restorers add touchup layers to cover up damage, damage from the paint having deteriorated over time. Well, spectroscopy can review the composition of those touchup layers too.结尾原则，在 lecture 的最后教授说 Now a word or two about restoration 然后简单介绍了一下 spectroscopy 在 restoration 的应用。所以选择C
听力文本结构框架：
这篇讲座主要讲的是教授用怎样鉴定油画的例子详细的介绍了光谱学怎样与艺术连接起来的。
以上就是小编的托福听力TPO5学习笔记中关于lecture3的内容，大家在平时备考时也要注意经验和技巧的积累，更多的笔记内容小编稍后为您呈现。最后，小编祝大家在托福考试中取得好成绩！
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