TPO43托福聽力真題解析：Lecture2

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TPO43托福聽力解析：Lecture 2

 1. What is the main purpose of the lecture?

A.To explain a mechanism behind the ability to approximate numbers
B.To explore the connection between ability in symbolic mathematics and the ability to approximate numbers
C.To show the importance of new research into the ability to solve complex mathematical problems
D.To demonstrate that children, adults, and animals have a similar ability to approximate numbers

解析：文章前半段作者即發(fā)問數(shù)學(xué)能力和大概數(shù)字感覺的能力是否相關(guān)？之后都是關(guān)于這個疑問，并在文章結(jié)尾給出答案。選B，A選項知識在文章開頭說了幾句。

2. Why does the professor mention six-month-old infants?

A.To emphasize that ANS is largely innate
B.To refute the claim that symbolic mathematics is learned
C.To point out the difficulty of testing mathematics ability in very young children
D.To contrast the way infants learn with how older children learn

解析：教授兩次提到六個月大的嬰兒都直接說明這種能力主要是天生的，并不是學(xué)習(xí)得來的（innate），選 A，B選項注意說的是數(shù)學(xué)能力，若改成ANS能力也算對。

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3. Why does the professor stress that the dots in the experiment flashed on the computer screen for only a fraction of a second? 

A.To emphasize that humans’ ANS ability is more developed than that of animals
B.To point out that it was not possible to complete the task using formal mathematics
C.To show a contrast between the dot experiment and the color-naming experiment
D.To explain, in part, how subjects were chosen for the experiment

解析：教授強調(diào)屏幕上的點只是一閃而過即是強調(diào)學(xué)生沒時間去數(shù)，只能靠估計數(shù)字的能力（ANS）,選B。

4. What did researchers observe in the study of fourteen-year-old children?

A.The children with strong ANS skills also scored well on color-naming tests
B.The children were more likely to make mistakes when there were small numbers of blue and yellow dots
C.The ANS skills of the children had improved over time.
D.There were large differences in the ANS skills of the children tested.

解析：教授說第一個實驗的發(fā)現(xiàn)就是該項能力個體之間差異較大，后面有具體說明哪些差異，此題選D。

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5. Why does the professor mention that the subjects of the experiment were also tested in reading and word knowledge?

A.To show that ANS skills are not linked with abilities in those areas
B.To emphasize the thoroughness of the researchers
C.To point out that ANS and other skills are learned in a similar way
D.To contrast learned skills with innate abilities

解析：選A

6. What is the professor’s opinion of using instruction in ANS to improve children's performance in formal mathematics?
A.It is likely that instruction in ANS would lead to improvement in areas other than formal mathematics.
B.It would be important for the instruction in ANS to begin when children are very young.
C.It is unclear whether instruction in ANS would improve performance in formal mathematics.
D.it is more likely that instruction in formal mathematics would improve children’s ANS ability.

解析：選C

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