2． 向......求助

3． 受某人支配

4． 更有甚者，更为重要的是

5． 最新的；现代的；时髦的

6． 退学，辍学；退出，脱离

Ⅲ.重点句式

1．without引导的含蓄虚拟条件句

Without the Internet，these people fewer avenues to meet people.

如果没有因特网，这些人与别人交往的途径就会更少。

2．不定式作目的状语

，a special clinic was opened in Beijing in 2005.

为了帮助解决这个问题，一家专门的诊所于2005年在北京开张了。

3．it作形式主语

I feel our use of the Internet，or to learn how to handle the problems it has caused.

在我看来，要么限制使用因特网，要么学会如何处理好因特网所引起的问题，这对我们来说很重要。

Ⅰ.课文阅读理解

1．According to the text,80% of frequent Internet users use the Internet mainly to .

A．communicate with experts

B．read articles

C．search for answers to questions

D．chat and play games

2．According to the text，why is the Internet now the first place many people turn to when they are in need of information?

A．Because they can acquire all sorts of information from the Internet.

B．Because they can communicate with experts on all sorts of topics.

C．Because they can read experts' articles.

D．All of the above.

3．The structure of the passage "The Internet has positive effects on our lives" can be described as .