In this lesson, students learn how to surf the internet safely and effectively.

在这节课中，学生们学习如何安全有效地上网。

Now her computer's Skype software—which makes possible free phone calls via the internet—rings and “Vera”, sitting in Shanghai where it is late morning, says Ni hao to begin the lesson.

下载，她计算机里装的免费网络电话软件Skype响了起来，在地球的另一端，“Vera”坐在上海的办公室里，向她说“你好”，这就开始了一天的课程。

Many schools not only are incorporating Internet safety into lesson plans but also shifting their focus from the pervasive "stranger danger" message typically given to young computer users.

许多学校不仅将互联网安全列入教学计划，并且将重点从渗透“陌生人危险”信息中转移，特别是对年经的计算机用户。

An important lesson to learn: if you talk about someone on the Internet, they will find out.

要学会一个重要原则：如果你在网上谈论某人，他们早晚会知道。

Many people have had to learn this lesson the hard way, unfortunately, after discovering that the "delete" button doesn't really work to delete something from the Internet as a whole.

许多人已经通过惨痛的方式吸取到了这个教训，他们发现“删除”按钮并不能帮他们把某些内容完全从互联网上删除。

If I don't finish my project on the history of the Internet for next Monday's lesson, the science teacher will be angry.

如果我不为下星期一的课写好一个关于因特网历史的功课，科学老师将会很生气。

There's an easy lesson to learn here: Don't store your Bitcoin on the internet—especially as the exchange rate continues to skyrocket (andsubsequently crash).

这里我们学到一个简单的教训：请勿将比特币储存在互联网上，尤其是在汇率继续飙升（以及随后崩溃）时。

In this reading lesson, we will read an article about how the Internet has affected the way we listen to music.

在这节阅读课上，我们将要阅读一篇关于英特网是如何影响我们听音乐的方式的文章。

So in this lesson, we 'll not only look at ordering coffee, we' ll also practice troubleshooting an Internet connection.

因此在这一课中，我们不仅是在点咖啡，而且是练习如何能故障排解，保证网络畅通。

Lesson Fifty-two Do you like surfing the Internet?

第五十二课你喜欢上网吗？

Lesson 7 How do Internet search engines work?

第七课因特网的搜索引擎是怎样工作的？