听力原文：
Conversation One

M: Tonight, we have a very special guest. Mrs. Anna Sanchez is a three time Olympic champion and author of the new book To the Edge. Mrs Sanchez, thank you for joining us.
W: Thank you for having me.
M: Let's start with your book. What does the title To the Edge mean? What are you referring to?
W: The book is about how science and technology has helped push humans to the edge of their physical abilities. I argue that in the past 20 years we have had the best athletes the world has ever seen.
M: But is this a fair comparison? How do you know, how, say, a football player from 50 years ago would compare to one today?
W: Well, you are right. That comparison would be perhaps impossible to make. But the point is more about our knowledge today of human biochemistry, nutrition and mechanics. I believe that while our bodies have not changed in thousands of years, what has changed is the scientific knowledge. This has allowed athletes to push the limits of what was previously thought possible.
M: That's interesting. Please tell us more about these perceived limits.
W: The world has seen sports records being broken that could only be broken with the aid of technology, whether this be the speed of a tennis serve or the fastest time in 100 meter dash or 200 meter swimming race.
M: Is there any concern that technology is giving some athletes an unfair advantage over others?
W: That is an interesting question and one that has to be considered very carefully. Skis, for example, went from being made of wood to a metal alloy, which allows for better control and faster speed. There is no stopping technological progress. But, as I said, each situation should be considered carefully on a case by case basis.

Q1：What do we learn about Anna Sanchez?

对话开头提到说:“安娜·桑彻斯是三届奥运会冠军”，可知，她是一位很棒的运动员。故选项A正确。

听力原文：
Conversation One

M: Tonight, we have a very special guest. Mrs. Anna Sanchez is a three time Olympic champion and author of the new book To the Edge. Mrs Sanchez, thank you for joining us.
W: Thank you for having me.
M: Let's start with your book. What does the title To the Edge mean? What are you referring to?
W: The book is about how science and technology has helped push humans to the edge of their physical abilities. I argue that in the past 20 years we have had the best athletes the world has ever seen.
M: But is this a fair comparison? How do you know, how, say, a football player from 50 years ago would compare to one today?
W: Well, you are right. That comparison would be perhaps impossible to make. But the point is more about our knowledge today of human biochemistry, nutrition and mechanics. I believe that while our bodies have not changed in thousands of years, what has changed is the scientific knowledge. This has allowed athletes to push the limits of what was previously thought possible.
M: That's interesting. Please tell us more about these perceived limits.
W: The world has seen sports records being broken that could only be broken with the aid of technology, whether this be the speed of a tennis serve or the fastest time in 100 meter dash or 200 meter swimming race.
M: Is there any concern that technology is giving some athletes an unfair advantage over others?
W: That is an interesting question and one that has to be considered very carefully. Skis, for example, went from being made of wood to a metal alloy, which allows for better control and faster speed. There is no stopping technological progress. But, as I said, each situation should be considered carefully on a case by case basis.

Q2：What is the woman's book mainly about?

对话中女士介绍说，她的书是关于科技是如何帮助人们挑战身体极限的。D项中的scale new heights(达到新的高度)是对话中 push humans to the edge of their physical abilities(挑战身体能力的极限)的同义转述。故选项D正确。

听力原文：
Conversation One

M: Tonight, we have a very special guest. Mrs. Anna Sanchez is a three time Olympic champion and author of the new book To the Edge. Mrs Sanchez, thank you for joining us.
W: Thank you for having me.
M: Let's start with your book. What does the title To the Edge mean? What are you referring to?
W: The book is about how science and technology has helped push humans to the edge of their physical abilities. I argue that in the past 20 years we have had the best athletes the world has ever seen.
M: But is this a fair comparison? How do you know, how, say, a football player from 50 years ago would compare to one today?
W: Well, you are right. That comparison would be perhaps impossible to make. But the point is more about our knowledge today of human biochemistry, nutrition and mechanics. I believe that while our bodies have not changed in thousands of years, what has changed is the scientific knowledge. This has allowed athletes to push the limits of what was previously thought possible.
M: That's interesting. Please tell us more about these perceived limits.
W: The world has seen sports records being broken that could only be broken with the aid of technology, whether this be the speed of a tennis serve or the fastest time in 100 meter dash or 200 meter swimming race.
M: Is there any concern that technology is giving some athletes an unfair advantage over others?
W: That is an interesting question and one that has to be considered very carefully. Skis, for example, went from being made of wood to a metal alloy, which allows for better control and faster speed. There is no stopping technological progress. But, as I said, each situation should be considered carefully on a case by case basis.

Q3：What has changed in the past thousands of years?

对话中女士明确指出，在她看来，我们的身体在过去的几千年里其实并没有什么改变，改变的是科学知识。故选项B正确。

听力原文：
Conversation One

M: Tonight, we have a very special guest. Mrs. Anna Sanchez is a three time Olympic champion and author of the new book To the Edge. Mrs Sanchez, thank you for joining us.
W: Thank you for having me.
M: Let's start with your book. What does the title To the Edge mean? What are you referring to?
W: The book is about how science and technology has helped push humans to the edge of their physical abilities. I argue that in the past 20 years we have had the best athletes the world has ever seen.
M: But is this a fair comparison? How do you know, how, say, a football player from 50 years ago would compare to one today?
W: Well, you are right. That comparison would be perhaps impossible to make. But the point is more about our knowledge today of human biochemistry, nutrition and mechanics. I believe that while our bodies have not changed in thousands of years, what has changed is the scientific knowledge. This has allowed athletes to push the limits of what was previously thought possible.
M: That's interesting. Please tell us more about these perceived limits.
W: The world has seen sports records being broken that could only be broken with the aid of technology, whether this be the speed of a tennis serve or the fastest time in 100 meter dash or 200 meter swimming race.
M: Is there any concern that technology is giving some athletes an unfair advantage over others?
W: That is an interesting question and one that has to be considered very carefully. Skis, for example, went from being made of wood to a metal alloy, which allows for better control and faster speed. There is no stopping technological progress. But, as I said, each situation should be considered carefully on a case by case basis.

Q4：What is the man's concern about the use of technology in sports competitions?

男士的最后一个问题表达出了他的担忧。他问女士，对于其他运动员而言，科技是否会给某些运动员带来不公平的优势。因此，他担心的是科技会导致运动员之间的不平等竞争，故选项C正确。