The Internet originated from ARPANET net in USA, 1960s. (71) From then on, the size of the Internet has doubled and doubled by each year. And it has developed from USA to the world,and become a really huge global network.
(72) The Internet has extremely abundant resources of information. (73) It's a huge information mine for human beings, and it's bigger than you can imagine. (74) People can make resources sharing, online communication and long-distance teaching and so on in the Internet. For example, you can read the books of the libraries at home; (75) you can go to the CCTV website to consult the program forecast even watch some programs online; you can send mails, photos, music to your friends far away; shop in the Net, learn in the net school, and etc.

71.