Unit 3 The world online 讲义 2020-2021学年【新教材】牛津译林版（2020）高中英语必修第三册讲义（上）

M3U3 The world online I 有人认为网络是一把双刃剑。一方面，它给人们带来前所未有的便利和灵感，但另一方面，它也会引起许多意想不到的问题。 With the development of science and technology, the Internet becomes more and more popular. You can find it nearly everywhere in our life, work and study. In other words the Internet is playing an increasingly important role in people's lives. Some people view it as a double­edged sword.On the one hand, it brings unprecedented convenience and inspiration, but on the other hand, it also causes many unexpected problems. Networks bring about many conveniences for our life. If you have a computer and network, you can get almost all information you need or the latest news conveniently. What's more, we can save a lot of time while going shopping online without going out. The Internet also provides a wide platform for our study and entertainment. Although the Internet has brought convenience to us, many people have begun to realize that it is the so