单选题 So, you love the Internet. It"s a great place to find information or go shopping. It"s fun, but do you spend a lot of time online? Experts say 6% of Internet users are Internet addicts (上瘾的人)—they are always online. "Internet addicts are often young people," says one expert, "and they usually have problems with family, friends, work, and school."
Go through the following check list. If you answer yes to all these questions, maybe you are an Internet addict.
1. Do you spend a lot of time on the Internet? □Yes □No
2. Do you think or talk about the Internet all the time? □Yes □No
3. Are all your friends "Internet friends"? □Yes □No
4. Is the Internet your only hobby? □Yes □No
5. Do you ever miss appointments (约会) because you are online? □Yes □No
So, what do you do if you think you are an addict? Go to an advice service. Where is it? On the Internet, of course!

单选题 According to the first paragraph, people find the Internet a great place to ______.

【正确答案】 B

【答案解析】[解析] 事实细节题。本题询问互联网的功能。定位到本文第一段第二句，网络是获取信息和购物的良好渠道，可知正确答案为选项B(获取信息)。选项A(上瘾)虽然是全文的中心内容，但与题中的a great place(好地方)相矛盾；选项C(赚钱)和选项D(办公)文章没有提到。

单选题 Those who are always online are called ______.

【正确答案】 C

【答案解析】[解析] 事实细节题。本题询问总是挂在网上的人被称为什么。定位到第一段第四句，提到“6%的网络用户上网成瘾”，然后又概述上网成瘾者的特征，即“他们总是挂在网上”，故可知正确答案为C(网络成瘾者)。选项A(网络使用者)没有always online的特点；选项B(网络专家)和选项D(网络服务商)原文没有提到。

单选题 According to one expert, Internet addicts are often young people who usually ______.

【正确答案】 C

【答案解析】[解析] 事实细节题。本题考查网络成瘾者的状态。定位到第一段最后一句，提到他们通常在家庭关系、交友、工作和学校生活等方面存在问题，故正确答案为C(生活和工作中有问题)。选项A(有很多兴趣爱好)、选项B(健康状况不佳)和选项D(进行全面体检)原文均没有提到。

单选题 If you want to find out whether you are an Internet addict, you are advised to ______.

【正确答案】 A

【答案解析】[解析] 实细节题。本题询问如何了解自己是否上网成瘾。定位到文中第二段第一句，提到“对照以下几项内容……”，可知正确选项为A(对照所提供的几项内容)。选项B(接受专门培训)、选项C(咨询朋友)和选项D(看医生)文中没有提到。

单选题 This passage is mainly about ______.

【正确答案】 D

【答案解析】[解析] 主旨大意题。本题询问文章中心思想。从全局来看，文章的第一段先简要提出网络的好处，接下来转而介绍网络成瘾者的表现及其背后隐藏的问题；第二段说明如何判断是否上网成瘾，并提供了解决的办法。故正确选项为D(上网成瘾的标志)。选项A(使用互联网)和选项C(网络的优势)没有提到文章的关键词Internet addicts；文中没有提及网络成瘾者的类型，故选项B不对。