Question 4 is based on the conversation you have just heard.

M: Tonight, we have a very special guest. (1) [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: (2) [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’ve 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. (3)[ 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 is seeing 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 a hundred-meter dash or 200-meter swimming race.

M: (4)[ 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’s no stopping technological progress. But, as I said, each situation should be considered carefully on a case-by-case basis.

4. What is the man’s concern about the use of technology in sports competitions?   （关于在体育比赛中运用科技，男士担心什么？）

解析：C。录音最后男士问到，会不会有人担心（concern）科技（technology）给一些运动员带来的优势对其他人来说是不公平的。C项的give an unfair advantage属于原词复现，因此选C。需要注意的是，本题的答案在录音中是以问题的形式出现的。听音时应对此类细节稍加留意。

错项排除：A、B、D三项在录音中没有与之相对应的具体内容，属于主观臆断，故均可排除。