问题补充：
The Internet has got into all the fields of our life. We can study and work on it. We can find a job on it. We can communicate on it. We can treat friends on it. We can buy and sell on it. We can do almost everything on the Internet, and almost anywhere, anytime.
However, although the Internet provides services for us, it is silently getting our privacy(隐私) to some degree. The services on most websites require our personal information. If we want to enjoy these services, we have to provide much of our information, including our names, sex, addresses, telephone numbers and sometimes bank accounts(帐户). Because weak network sometimes is unsafe, our information might be open, stolen or sold. Even sometimes it will be used freely by others.
Considering（考虑到...） the above mentioned, you must pay attention to the safety when using the Internet. First, when you need Internet service, you should always look through those big legal(合法的) websites. Second, if the service requires important personal information, you should think twice before you type it in. Third, store your own important card key(电子钥匙) and don’t tell others easily.
【小题1】According to the passage, we shouldn’t by using the Internet.A．learn EnglishB．give our friends’ information to others C．chat with friendsD．look for jobs【小题2】The underlined word “it” refers to .A．the telephone numberB．the name C．the information D．the bank account【小题3】Which of the following ways is correct to protect our information on the Internet?
a. Surf the safe Web . b. Think over and over before typing it in.
c. Don’t chat with friends on line d. Don’t use your key easily.A．a,b,c. B．b,c,d.C．a,b,d. D．a,c,d.【小题4】What can we learn from the passage?A．Don’t believe others if you don’t know them.B．Remember never use the ID card on the Internet.C．Never use the Internet in the future.D．From now on, we must pay attention to the safety of the information on line.B
答案：
(答案→)B
解析：
【小题1】根据短文第一段描述通过网络我们能做的包括了选项ACD，故只能选C。
【小题1】根据局前文描述网络服务有很多与私人信息有关，it指代前文提到的就是前面提到的这些私人信息，选C。
【小题1】根据First, when you need Internet service, you should always look through those big legal(合法的) websites. Second, if the service requires important personal information, you should think twice before you type it in. Third, store your own important card key(电子钥匙) and don’t tell others easily.
这段话的描述可知选C。
【小题1】本文先后介绍网络带给我们的方面，进而有提到了网络会导致个人信息的泄露，故我们应提高网络安全意识，选D。
