互学习。故选D。

　　2．What should students pay attention to when using the library?

　　A．Taking rubbish out when leaving.

　　B．Avoiding having cold drinks and snacks.

　　C．Keeping their mobile phones silent all the time.

　　D．Using mobile phones only in the hallways or stairs.

　　解析：选C　细节理解题。根据最后一段最后一句"We ask that you switch your phone to silent mode when you come in the library."可知，学生在使用图书馆时应该注意一直保持手机静音。故选C。

　　3．What is the text mainly intended for?

　　A．Introducing additional regulations of a university library.

　　B．Showing how to make use of a university library.

　　C．Recommending a university library the author visits.

　　D．Explaining why a university library is a good place for study.

　　解析：选B　写作意图题。通读全文并结合并根据第一段的内容可知，文章主要介绍了如何充分利用大学的图书馆。故选B。

　　B

　　Moutai Thanks the Hit Movie

　　Wolf Warrior Ⅱ for Free Advertising

　　Chinese box office hit Wolf Warrior Ⅱ has received a thank­you letter from the president of China Kweichow Moutai (Group) Distillery Co., Ltd, the country's most famous brand of liquor, because of the scenes where the hero drank Moutai liquor in the movie.

　　The movie, which premiered (首映) on July 27,2017, tells the story of a former Chinese People's Liberation Army soldier protecting Chinese citizens and local factory workers in an African war zone.

　　The patriotic (爱国的) emotions have proven popular with audiences. By the end of September, Wolf Warrior Ⅱ had earned more than 5.6 billion yuan, breaking China's all­time box office record, set last year by Hong Kong comedy The Mermaid. Wu Jing, 43, both starred in and directed Wolf Warrior Ⅱ， whose prequel (前传) earned 525 million yuan in 2015.

　　On August 7, Yuan Renguo, president of Kweichow Moutai, congratulated Wu Jing on his success in an open letter on the company's website. "The movie has hit a new record and become a phenomenon，" Yuan wrote. "The movie is now synonymous (相同的) with patriotism. Your free advertising of Moutai in the movie has once more allowed this famous Chinese brand to impress the world."

Yuan also added that the company had organized screenings of the film for its more than 30,000 employees, which improved their feelings of nationalism and "company cohesion (凝聚力)"．