TPO12听力解析
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A. She doubted its accuracy. B. She was surprised by its conclusion. C. She was concerned about its implications. D. She thought it was unnecessary. 答案：B
What is the professor’s main criticism of the man’s paper? A. It included unnecessary information. B. It did not include enough examples to illustrate the main point. C. The main point was expressed too abstractly. D. The paper ignored a key historical fact. 答案：A 解析:1m4s 细节题。叫兽表明学生太想扩大文章的范围导致过于冗杂，所以需要删减。“ Anything unrelated to the use of nature EMITRY has no place in the paper. All that tangential material just distracted from the main argument.” BC 无关，D 说反了，教授要求男青年删除历
第二篇 Biology 6. What does the professor mainly discuss? A. How genes control human development. B. Why various types of human cells divide at different rates. C. How human chromosomes differ from one another. D. Why most human cells cannot keep dividing successfully. 答案：D 解析：12 秒开始 主旨题。“we can explain a very important observation,”引出话题，即细胞分裂的次数是有限 的，因此不能一直分裂。B 中存在干扰，但是此项教授并没有解释出来，因此此项不可选。
9. Why does the professor mention shoelaces? A. To point out that chromosomes are arranged in pairs. B. To describe the coiled shape of a chromosome. C. To illustrate how chromosomes are protected from damage. D. To explain how chromosomes are joined before dividing. 答案：C 解析：2m55s 目的题。教授举例，即鞋带末端的塑胶部分，来解释 telomere 的作用。“protect the genes the genetically functional parts of the Chromosome from being damaged.”两样东西都起到了同样的 作用，保护鞋带（染色体）
TPO12 listening 问题解析
注：问题中红色标记词汇为解题突破点和关键词。
（编辑整理 by Nimo 叔）
Section 1
第一篇 Why does the professor ask the man to come to her office? A. to check on the man’s progress on a paper he is writing B. To show the man niques for organizing his time C. To encourage the man to revise a paper he wrote D. To clarify her comments on a paper the man wrote 答案：C 解析：24s 开始 主旨题，教授建议同学改文章。“Oh, sorry! It’s not for your grade. It's…I think you could learn a lot by revising it.”A，B 为无关选项，D 稍微有些干扰，但是主旨依然是怂恿男青年改文章。
1
本文章由尚友原创或整理
史资料部分。
Why does the professor suggest that the student change the introduction of his paper?
A. To make it less repetitive B. To more clearly state the man’s point of view. C. To correct spelling and grammar mistakes. D. To reflect changes made elsewhere in the paper. 答案：D 解析：大约 1M04S 开始 细节题。教授具体提出了要求：“you’ll have to revise the introduction too, to accurately describe what you do in the body of the paper.”D 选项几乎就是同义替换，因此正确。
5. What does the professor mean when she says this: “Tell me about it!” A. She understands the student’s problem. B. She wants the student to explain his comment. C. She did not hear what the student said. D. She does not accept the student’s excuse. 答案：A 解析： 推论题。“Tell me about it! All writers struggled without one. But it’s something you can learn.” 教授在听到学生的问题后亲切地提出了自己的建议，因此说明她知道学生刚刚说了什么，C 无关。后面也没说要学生提出评论，B 无关。也没有表示不接受他的借口，D 无关。
Why does the man hesitate before agreeing to the professor’s request? A. He is not sure his effort would be successful. B. He feels overwhelmed by all his schoolwork C. He is unclear about what the professor wants his to do. D. He does not like to work on more than one assignment at a time. 答案：B 解析：33s 开始 推理题。男青年听了叫兽的话震惊了。“There’re deadlines wherever I turn and… and I don’t really know how much time I could give it.““it is a busy time, with spring break coming up next week. It’s your call.”两句话都体现了男青年的难处。原因是要放假了作业都要交了。AC 都 是无关项，D 干扰，因为也说了很多作业，但是男青年没有表明自己不喜欢一次做很多作业， 无关。
7. The professor discusses research about the percentage of a chromosome’s DNA that contains genetic information. How did she feel about this research?
10. What does the professor imply about the length of the telomeres on a cell’s chromosomes?
A. Longer telomeres allow the cell to divide more times. B. Longer telomeres contain more genetic information. C. Shorter telomeres are wound into tighter coils. D. Shorter telomeres are less likely to break. 答案：A 解析：3m30s 细节题。教授指出，端粒会随着染色体的分裂变得越来越短“So after each division, the telomere gets shorter”，因此，端粒越长，可允许分裂次数越多。AC 无关，D 选项说反了。
3
本文章由尚友原创或整理
答案：B 解析：4m35s 细节题。教授介绍了端粒当中存在的一种酶（enzyme）：telomerase，即端粒酶，学名是核 糖体蛋白酶。“this chemical, this telomerase can rebuild it, can help reassemble the protected DNA,”端粒酶可以修复端粒，B 选项符合题意。CD 无关。A 选项在语音上面有干扰作用， 不是 resemble，应为 reassemble，A 选项意为: 端粒和端粒酶在结构上相似。
2 本文章由尚友原创或整理
解析：1m 49 左右 细节题。“they were amazed, we all were,”此句为重点句，大家都对”只有 20%-30%的 DNA 是存在有意义基因”这个结果感到惊讶。其余选项都比较扯淡，无视之。
8. What does the professor say about the DNA in a telomere? A. It causes a cell to begin dividing. B. It separates one gene from another. C. It is genetically meaningless. D. It has no function. 答案：C 解析：2m40s 细节题。教授在 telomere(n.端粒)的定义的下句中指出：“Now a telomere is a highly repetitious and genetically meaningless sequence of DNA, what we were calling JUNK DNA.”其余选项几 乎无关。
11. According to the professor, how is the chemical telomerase related to the telomere? A. It resembles the telomere in structure. B. It helps repair broken telomeres. C. It is produced at the end of telomere. D. It prevents telomeres from becoming too long.
What is the professor’s main criticism of the man’s paper? A. It included unnecessary information. B. It did not include enough examples to illustrate the main point. C. The main point was expressed too abstractly. D. The paper ignored a key historical fact. 答案：A 解析:1m4s 细节题。叫兽表明学生太想扩大文章的范围导致过于冗杂，所以需要删减。“ Anything unrelated to the use of nature EMITRY has no place in the paper. All that tangential material just distracted from the main argument.” BC 无关，D 说反了，教授要求男青年删除历
第二篇 Biology 6. What does the professor mainly discuss? A. How genes control human development. B. Why various types of human cells divide at different rates. C. How human chromosomes differ from one another. D. Why most human cells cannot keep dividing successfully. 答案：D 解析：12 秒开始 主旨题。“we can explain a very important observation,”引出话题，即细胞分裂的次数是有限 的，因此不能一直分裂。B 中存在干扰，但是此项教授并没有解释出来，因此此项不可选。
9. Why does the professor mention shoelaces? A. To point out that chromosomes are arranged in pairs. B. To describe the coiled shape of a chromosome. C. To illustrate how chromosomes are protected from damage. D. To explain how chromosomes are joined before dividing. 答案：C 解析：2m55s 目的题。教授举例，即鞋带末端的塑胶部分，来解释 telomere 的作用。“protect the genes the genetically functional parts of the Chromosome from being damaged.”两样东西都起到了同样的 作用，保护鞋带（染色体）
TPO12 listening 问题解析
注：问题中红色标记词汇为解题突破点和关键词。
（编辑整理 by Nimo 叔）
Section 1
第一篇 Why does the professor ask the man to come to her office? A. to check on the man’s progress on a paper he is writing B. To show the man niques for organizing his time C. To encourage the man to revise a paper he wrote D. To clarify her comments on a paper the man wrote 答案：C 解析：24s 开始 主旨题，教授建议同学改文章。“Oh, sorry! It’s not for your grade. It's…I think you could learn a lot by revising it.”A，B 为无关选项，D 稍微有些干扰，但是主旨依然是怂恿男青年改文章。
1
本文章由尚友原创或整理
史资料部分。
Why does the professor suggest that the student change the introduction of his paper?
A. To make it less repetitive B. To more clearly state the man’s point of view. C. To correct spelling and grammar mistakes. D. To reflect changes made elsewhere in the paper. 答案：D 解析：大约 1M04S 开始 细节题。教授具体提出了要求：“you’ll have to revise the introduction too, to accurately describe what you do in the body of the paper.”D 选项几乎就是同义替换，因此正确。
5. What does the professor mean when she says this: “Tell me about it!” A. She understands the student’s problem. B. She wants the student to explain his comment. C. She did not hear what the student said. D. She does not accept the student’s excuse. 答案：A 解析： 推论题。“Tell me about it! All writers struggled without one. But it’s something you can learn.” 教授在听到学生的问题后亲切地提出了自己的建议，因此说明她知道学生刚刚说了什么，C 无关。后面也没说要学生提出评论，B 无关。也没有表示不接受他的借口，D 无关。
Why does the man hesitate before agreeing to the professor’s request? A. He is not sure his effort would be successful. B. He feels overwhelmed by all his schoolwork C. He is unclear about what the professor wants his to do. D. He does not like to work on more than one assignment at a time. 答案：B 解析：33s 开始 推理题。男青年听了叫兽的话震惊了。“There’re deadlines wherever I turn and… and I don’t really know how much time I could give it.““it is a busy time, with spring break coming up next week. It’s your call.”两句话都体现了男青年的难处。原因是要放假了作业都要交了。AC 都 是无关项，D 干扰，因为也说了很多作业，但是男青年没有表明自己不喜欢一次做很多作业， 无关。
7. The professor discusses research about the percentage of a chromosome’s DNA that contains genetic information. How did she feel about this research?
10. What does the professor imply about the length of the telomeres on a cell’s chromosomes?
A. Longer telomeres allow the cell to divide more times. B. Longer telomeres contain more genetic information. C. Shorter telomeres are wound into tighter coils. D. Shorter telomeres are less likely to break. 答案：A 解析：3m30s 细节题。教授指出，端粒会随着染色体的分裂变得越来越短“So after each division, the telomere gets shorter”，因此，端粒越长，可允许分裂次数越多。AC 无关，D 选项说反了。
3
本文章由尚友原创或整理
答案：B 解析：4m35s 细节题。教授介绍了端粒当中存在的一种酶（enzyme）：telomerase，即端粒酶，学名是核 糖体蛋白酶。“this chemical, this telomerase can rebuild it, can help reassemble the protected DNA,”端粒酶可以修复端粒，B 选项符合题意。CD 无关。A 选项在语音上面有干扰作用， 不是 resemble，应为 reassemble，A 选项意为: 端粒和端粒酶在结构上相似。
2 本文章由尚友原创或整理
解析：1m 49 左右 细节题。“they were amazed, we all were,”此句为重点句，大家都对”只有 20%-30%的 DNA 是存在有意义基因”这个结果感到惊讶。其余选项都比较扯淡，无视之。
8. What does the professor say about the DNA in a telomere? A. It causes a cell to begin dividing. B. It separates one gene from another. C. It is genetically meaningless. D. It has no function. 答案：C 解析：2m40s 细节题。教授在 telomere(n.端粒)的定义的下句中指出：“Now a telomere is a highly repetitious and genetically meaningless sequence of DNA, what we were calling JUNK DNA.”其余选项几 乎无关。
11. According to the professor, how is the chemical telomerase related to the telomere? A. It resembles the telomere in structure. B. It helps repair broken telomeres. C. It is produced at the end of telomere. D. It prevents telomeres from becoming too long.