【正确答案】The university will upgrade its student directory with color photographs as well as making it available online.
The male student is enthusiastic about the improvement for two main reasons.
First, since more than one person may have the same name, the addition of photographs will help students identify each other, so they won't be confused.
Second, the paper directory is large and heavy. So it is not easy for students to carry and not handy to use. With the online directory, students can easily check out the information they need in a short time.

【答案解析】[听力原文]
W: Hey, Jason. It looks like you've got good news.
M: Yes, I'm happy about the new student directory.
W: I didn't hear of it. What is new about it?
M: Well, now the directory will have everyone's picture!p
W: Really? Why would they do that?
M: You know, two students might have the same name. I used to get confused when I looked for my friends in the directory. Last semester I was trying to find a girl named Linda Vega. There were three Linda Vegas in the directory. It was really hard to find the one I wanted! However, with the photos, I would be sure I've got the right person. It can save everyone a lot of trouble.
W: Oh, great!
M: Anyway, the university is also going to put the directory on the internet.
W: Why on the internet? Too many strange people can find me already!
M: Some students cannot find the hard copy of the directory or they don't want to always carry that heavy directory book with them. This way, it is easier and faster for students to find the information if the electronic version of the directory is available online.

Alternative Wording(替换表达)
Synonyms (a)upgrade—improve (b)handy—convenient
Paraphrases 1. The addition of photographs will help prevent confusion./Including photos will be a big help because sometimes several people share the same name.
2. As such, the young man thinks it will be far easier reaching the people he wants to find.