11.  We use internet frequently such as search for information, chat with friends and send emails.

12.  We feel lucky that we are in the electronic age, happily sending emails to our friends and families , and chatting with anyone who have the same interests with us.

13.  There are too many junks emails in the email box that we are likely to overlook the real significant things.

14.  Besides, Internet makes it possible for us to send emails to our friends cheaply and instantly.

15.  There are so many interesting things that we can do on the Internet, such as, sending emails, chatting online, watching any video that you are interested in, and go shopping online conveniently.

16.  What's more, junk emails would also exert some bad impression on you, and there's nothing to prohibit the unwary from junk.

17.  Chatting online, sending emails and looking for information all we need.

18.  In order to make Email travel on the Internet, people use a local ISP, which gives them access to the Internet''backbone providers'', who own the communications gear that directs traffic over the Internet and connect to each other to exchange data of their customers to send messages.

19.  Your email may be forwarded by someone; your private photos may be shown to others without your permission; even your property may be exposed to dangers.

20.  We use it to keep in touch with each other by email, chat room, message board and so on .