What is the purpose of the experiments described in the passage?

For this part, you are allowed 30 minutes to write a composition on the topic Online Games. You should write at least 1 20 words and base your composition on the outline (given in Chinese) below.

1.现在有一些大学生沉迷于网络游戏，家长和学校对此甚为担忧;

2.有人认为网络游戏并不是一无是处。

3.对此你的看法是….

这个倔强的男孩不愿意听从父母的忠告。_____________________________________________________________________________

只要你一辈子不停地努力工作，你在回忆往事时就会感到心满意足的。_____________________________________________________________________________

理论上说，你的计划听上去不错，但实际上行得通吗?_____________________________________________________________________________

小女孩的歌声给老人带来了欢乐，帮住他忍受住种种生活的艰辛。_____________________________________________________________________________

我过去常常浪费很多时间玩游戏。_____________________________________________________________________________

By comparison, an earthquake of similar intensity that shook America in 1988 claimed 25, 000 victims._____________________________________________________________________________

The new designs should offer even greater security to cities where earthquakes often take place._____________________________________________________________________________Section B Directions: Put the following sentences into English.

Recent studies have shown that the behavior of rats is greatly affected by space._____________________________________________________________________________

Throughout this century English has grown more and more important. It has become a second language for many millions of people._____________________________________________________________________________