A
Recently, more than 2,000 high school teachers have been asked about the effect of the Interneton their students. Teachers say the Internet has had a good influence(影响and a not-so-good influence on this generation.
Three quarters of the teachers say the Internet and search tools have had a great effect on theirstudents'research habits and skills. But 87 percent agree that this young generation don' t knowabout hard work and can't stay attentive(注意力集中的) for long. And 64 percent say the Internetdoes more to distract (使分心)students than to help them in their studies. Many students think "doingresearch"just means doing a quick search on Google.
According to the teachers, one problem is that students trust too much of the information on theInternet. These students have not developed skills to judge the quality of the information. It' s some-thing that really has to be taught and paid attention to. It' s like everything else. In a world wherethings can happen quickly, you really need to have a way to step back, think and make judgmentabout the information you have. And teachers can do a lot to teach that.
Another problem is that being able to quickly find information keeps the students from workinghard. They become dependent on search tools and do not make enough use of printed books. Manyteachers are also afraid that the Internet makes it easy for students to copy work done by others.
What does the text mainly discuss about the Internet?
主旨大意题。文章第一段第一句为主题句，点明了全文的主旨：网络对中学生的影响。故D正确。
What is the percentage of the teachers who think the students need hard work?
推理判断题。由第二段第二句可知，87%的中学教师认为年轻的一代不刻苦学习，也不能长时间集中注意力。由此推断出，这些教师认为学生应刘苦学习。故C正确。
What should be taught to students according to Paragraph 3 ?
事实细节题。由第三段第二句和第三句可知，现在的中学生没有判断所得到的信息真实性的技能，这是教师应该教授给学生的。故C正确。
What will happen when students depend too much on search tools?
事实细节题。由最后一段第二句可知，中学生过于依赖搜索工具而没有充分利用书籍。故B正确。