TOEFL TPO 72 Speaking Task 3 Sample: Explain how the example from the professor's lecture illustrates the concept of rational ignorance.

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Rational ignorance When people are planning to make an important purchase, they often spend a great deal of time gathering information about their various options to make the best possible choice. However, when making less important purchases, people may decide that it is not worth gathering information beforehand. This phenomenon is called rational ignorance. If the differences between products seem small or unimportant, people may decide not to learn about them. In other words, people deliberately choose to remain ignorant of the differences because learning about them is not worth the time or energy. The products are so similar that no significant benefit can come from choosing one over another.

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Explain how the example from the professor's lecture illustrates the concept of rational ignorance.

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1.子项得分 Delivery: 3 Language Use: 3 Topic Development: 4

2.预估分数 Estimated Score: 23

3.表达从表达方面来看，整体上说得比较清楚，但有时候会有一些不必要的停顿。建议在练习时注意保持语速的稳定，尽量减少不必要的停顿。此外，注意发音的准确性，以免出现拼写错误。

4.话题发展 The topic development aspect of the speaking answer is well done. The speaker provides a coherent and well-organized response, with clear connections between ideas and sufficient support or examples from both the reading passage and the lecture. The example from the professor's lecture is used effectively to illustrate the concept of rational ignorance. No significant improvements are needed in this area.

5.语言使用

Original: The reading passage introduces a term named rational ignorance, meaning a phenomenon when people deliberately choose to remain ignorant of the difference between products that seem unimportant since they consider it is not worth time gathering information beforehand.

Corrected: The reading passage introduces a term called rational ignorance, which refers to a phenomenon where people deliberately choose to remain ignorant of the differences between products that seem unimportant, as they believe it is not worth spending time gathering information beforehand. (将"named"改为"called"，将"difference"改为"differences"，将"it is not worth time gathering information"改为"it is not worth spending time gathering information")

原因与解释：这里的修改是为了让句子更自然、通顺。使用“called”而不是“named”更符合自然语言的表达。同时，将“difference”改为复数形式“differences”，因为我们在谈论多个产品之间的差异。最后，将“it is not worth time gathering information”改为“it is not worth spending time gathering information”，使句子更符合英语表达习惯。

Revised Answer (140 words):

The reading passage introduces a term called rational ignorance, which refers to a phenomenon where people deliberately choose to remain ignorant of the differences between products that seem unimportant, as they believe it is not worth spending time gathering information beforehand. The professor in the psychology lecture used an example of himself to explain this concept. When he was buying a new car, he took a lot of time researching the advantages and disadvantages of different brands. However, when he was buying batteries, there were several different brands available. Some may last longer and some may be higher in quality. But he didn't ask the salespeople any questions or compare the batteries, as he thought they all cost about the same and may last just about the same amount of time. So, instead of wasting time researching, he just grabbed the first ones he saw and paid for them.

6.思维导图

Rational Ignorance
- Definition
- Reading Passage
- Professor's Example
  - Buying a car
    - Researching
    - Advantages and Disadvantages
  - Buying batteries
    - Several brands
    - No significant differences
    - Time-saving decision

7.关键词

Word	Phonetic Symbols	Parts of Speech	English Definition	Simplified Chinese Translation	Sample Sentence
Rational	/ˈræʃənl/	adjective	Based on clear thought and reason	理性的	It is rational to research and compare options when making an important purchase, such as buying a car.
Ignorance	/ˈɪɡnərəns/	noun	Lack of knowledge or information	无知	Rational ignorance occurs when people choose not to gather information about products with minor differences.
Phenomenon	/fəˈnɒmɪnən/	noun	A fact or situation that is observed to exist or happen, especially one whose cause is in question	现象	The phenomenon of rational ignorance can be observed in various consumer behaviors, such as purchasing everyday items.
Deliberately	/dɪˈlɪbərətli/	adverb	Consciously and intentionally; on purpose	故意地	People deliberately choose to remain ignorant about certain products when they believe it is not worth spending time researching them.
Insignificant	/ˌɪnsɪɡˈnɪfɪkənt/	adjective	Too small or unimportant to be worth consideration	无足轻重的	When differences between products are insignificant, consumers may not invest time in gathering information before making a purchase decision.