When I first got an email account ten years ago, I received communications only from family, friends, and colleagues. Now it seems that every time I check my e-mail, I have an endless series of advertisement and other correspondence that do not interest the at all. If we want e-mail to continue to be useful, we need special laws that make spamming(发送垃圾邮件) a crime.
If lawmakers do not do something soon to prohibit spam, the problem will certainly get much worse. Computer programs allow spammers to spend hundreds of millions of e-mails almost instantly. As more and more advertisers turn to spam to sell their products, individual e-mail boxes are often flooded with spam e-mails. Would people continue to use e-mail if they had to deal with an annoying amount of spam each time?
This problem is troubling for individuals and companies as well. Many spam emails contain computer viruses that can shut down the entire network of a company. Companies rely on e-mail on for their employees to communicate with each other. Spam frequently causes failures in their local communications networks, and their employees are thus unable to communicate effectively. Such a situation results in a loss of productivity and requires companies to repeatedly repair their networks. These computer problems raise production costs of companies, which are, in the end, passed on to the consumer.
For these reasons, I believe that lawmakers need to legislate (立法) against spam. Spammers should be fined, and perhaps sent to prison if they continue to disturb people. E-mail is a tool which helps people all over the world to communicate conveniently, but spam is destroying this convenience.
小题1:What does the underlined word “correspondence” in the Paragraph 1 probably mean?
A．messages
B．ideas
C．connections
D．programs小题2:According to the text, what is the major cause of the flooding spam?
A．Companies rely on e-mail for communications.
B．More people in the world communicate by e-mail.
C．Many computer viruses contain spam e-mail.
D．More advertisers begin to promote sales through spam.小题3:According to Paragraph 3,who is the final victim of spam?
A．The business
B．The advertiser
C．The employee
D．The consumer小题4:What is the purpose of the text?
A．To inform
B．To educate
C．To persuade
D．To instruct
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溶液有强酸性 ② 
溶液有强氧化性 
溶液有强还原性 ④该过程中水既被消毒又被净化 