TPO43托福听力真题解析：Lecture2

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TPO43托福听力解析：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：文章前半段作者即发问数学能力和大概数字感觉的能力是否相关？之后都是关于这个疑问，并在文章结尾给出答案。选B，A选项知识在文章开头说了几句。

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：教授两次提到六个月大的婴儿都直接说明这种能力主要是天生的，并不是学习得来的（innate），选 A，B选项注意说的是数学能力，若改成ANS能力也算对。

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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：教授强调屏幕上的点只是一闪而过即是强调学生没时间去数，只能靠估计数字的能力（ANS）,选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：教授说第一个实验的发现就是该项能力个体之间差异较大，后面有具体说明哪些差异，此题选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：选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：选C

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