TPO44托福听力真题解析：Lecture 1

新托福TPO听力是托福听力部分备考最好、最有效的复习材料。今天，托福名师团队为大家分享TPO44托福听力真题Lecture 1解析，供大家学习使用，希望对广大考生有所帮助。

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TPO44托福听力解析：Lecture 1

 1. What is the main purpose of the lecture?

A. To provide an example of a practical use of nanotechnology.
B. To show the origins of the field of nanotechnology.
C. To give a brief outline of the main concepts of nanotechnology.
D. To explain the growing interest in nanotechnology research.

解析：教授开头即说了今天主要一种纳米技术的应用，后文也是关于该纳米涂层技术的，选A。

2. How does the professor organize the information he presents to the class?

A. He describes the inspiration behind the nanocoating, then how the coating works.
B. He describes how the nanocoating is currently marketed, then the inspiration behind it.
C. He explains how fogging occurs, then the basic concepts of nanotechnology.
D. He explains how fogging occurs, then how the nanocoating prevents it.

解析：教授先解释了雾的形成机制，再描述了为什么改涂层能防雾，选D。其它选项没说

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3. According to the professor, how does the new nanocoating work?

A. By forcing light to bounce off a glass-coated polymer.
B. By forcing water droplets to roll off an ultrathin surface.
C. By causing water droplets to merge into a single sheet of water.
D. By causing light to scatter randomly in many directions.

解析：教授讲明了该硅离子-聚合物的结构有很多像口袋一样的孔洞，能将水滴吸平形成薄片状的水而不是水滴，选C。

4. According to the information in the lecture, why does the new nanocoating not last as long on plastic as it does on glass?

A. Plastic cannot withstand extremely high temperatures.
B. The internal structure of plastic repels a positively charged polymer.
C. The coating solution scatters when it comes into contact with plastic.
D. Plastic surfaces scratch more easily than glass surfaces do.

解析：教授讲明了玻璃材质跟塑料的区别就是玻璃耐高温，塑料不行，选A。

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5. What inspired the team of scientists in developing the new coating?

A.  A problem the team frequently encountered in everyday life.
B. The ineffectiveness of spray solutions in flattening water droplets.
C. The leaves of a plant that the team had been investigating.
D. Interactions observed between silica nanoparticles and polymers.

解析：选C

6. What is the professor's opinion about the approach inventors took to the development of the new nanocoating?

A. He thinks other inventors should use a similar approach.
B. He is impressed by the flexibility of their approach.
C. He is surprised the research process took so long.
D. He thinks they should have spent more time testing a super hydrophobic coating.

解析：选B

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