A、 It is difficult for students in the digital age to concentrate.
B、 More than half of American teenagers like surfing online.
C、 Students' research skills are negatively influenced.
D、 The Internet and digital search tools help students mentally.

【正确答案】 A

【答案解析】短文开头提到，四分之三的老师认为因特网和数字搜索工具对于学生的研究习惯和方法产生的影响主要是积极的，但是87％的老师认为这些技术使得美国年轻人“易受干扰、注意力短暂”。

A、 A good academic thesis.
B、 A quick search on the Internet.
C、 Applying theory to practice.
D、 Idea exchanges with their teachers.

【正确答案】 B

【答案解析】短文中提到，许多学生认为现在“做研究”就是到谷歌上快速搜索。

A、 They improve the students' research habits and skills.
B、 They make learning less interesting and attractive.
C、 They create meaningful contents on the Internet.
D、 They give the students a hand to learn more and faster.

【正确答案】 D

【答案解析】短文中提到，Buchanan女士表示，数字化研究工具有助于学生们学得更多更快。

A、 Many students can't get updated online information.
B、 Many students do not make the most use of printed books.
C、 Many students can't judge the quality of online information.
D、 Many students do not trust the information found online.

【正确答案】 C

【答案解析】短文结尾处提到，调查中发现的一个问题是，许多学生缺乏数字文化。换句话说，他们过于相信互联网上找到的信息。