Nowadays,the Internet has been playing an important role in our everyday life It has brought a lot of benefits but has also brought some problems.如今,互联网已在我们生活中扮演越来越重要的角色，它给我们带来了许多好处，但也产生了一些问题。

With the development of our society，more and more people believe that knowledge is very important.随着社会的发展，越来越多的人认为知识很重要。

A lot of people think that knowledge is very necessary.很多人认为知识很必要。

People's opinions about the Internet are different Some think that it can bring a lot of benefits However, others think that it dose harm to our health.人们对互联网的观点各有不同，有些人认为互联网给我们带来了很多益处，然而，其他人却认为他对我们有害。

Everything has two sides and the Internet is not an exception ,it has both advantage and disadvantage.每个硬币都有两面，互联网也不例外，它既有优点有与缺点。

Human beings are facing a big problem ,the air pollution ,which is becoming more and more serious.人类正面临一个严重的问题，大气污染，这个问题变得越来越严重。