John Allen, an American scientist once (say)," The Internet is the world's (large) library, but all the books in it are on the floor!" What he meant is that the Internet is full of information. But it can be difficult to find you really need. The Internet has another disadvantage(弊端). Anyone can create a website, so you can find websites about whatever you can imagine. (luck), a lot of what is written on them isn't always true.
At same time, the Internet offers many other things. On some websites, you can download music and films. They are usually very cheap and some are even free. On some other websites, you can connect with people from all over the world. And there are some great online stores, too. For example, on eBay people sell (use) clothes, CDs, and even cars at very low ( price) .
It is true that the Internet has changed the way we work and communicate. But we should not depend it too much. Some people are also afraid that (surf) the Internet has taken the place of other healthy activities, especially for young people. Whether you love it or hate it, though, you'd better (get) used to it because it is right here to stay.