Question 13 is based on the conversation you have just heard.

听力原文

M: Our school is replacing printed textbooks with e-textbooks next semester. I can’t wait.

W: Really? (12) [What about the cost? Not only buying all those tablets, but the software and electronic infrastructure that goes with it.] Not to mention retraining all the teachers and administration staff.

M: Sure. The initial expenditure will be high, but much lower afterwards. Besides that, tablet prices continue to drop and are becoming increasingly affordable. (13) [Anyway, tablets help students learn up to 80% faster.]

W: Not necessarily. (14) [Tablets have too many distractions. Students may pay attention to apps, games, and websites instead of their teachers.] In fact, research suggests that people who read printed texts comprehend more, remember more and learn 30% more than those who read digital texts.

M: Yes, but tablets contain many technological features that are not found in printed textbooks. Think about it: (13) [Students are able to highlight and edit texts, write notes and search for information much more quickly than they can with printed textbooks.] And what about all those trees that are cut down to make printed books?

W: Actually, manufacturing tablets is environmentally destructive and dangerous to human health. The health impacts from making one electronic reader are 70 times greater than those from making a single printed book. A lot of minerals are extracted from the earth to make electronic readers. (15) [It does far more damage to the environment.]

M: Yes, but the software for electronic readers can be updated instantly, without the need for buying a whole lot of new books. That’s better for the environment.

W: But the core curriculum doesn’t change that much. Printed textbooks that are not brand new still contain the basic relevant information of core subjects.

M: Well, I’m looking forward to the change. 

W: I’ll stick with my printed books.

13. According to the man, how can the use of tablets benefit students?（根据男士的说法，使用平板电脑对学生有什么好处？）

解析：A。在对话前半部分男士提到，平板电脑帮助学生提高了80%的学习速度，比起纸质教科书，学生们能够更快地标记和编辑文本、做笔记、搜索信息。A项与此相符，其中的greatly improve their learning efficiency对应录音中的learn up to 80% faster，故为正确答案。

错项排除：男士在录音中没有提到使用平板电脑有利于增加师生互动，故排除B项。C项和D项内容在录音中无依据，故均可排除。