What is the passage mainly about?

为弥补因恶劣天气耽误的时间，半决赛选手不得不在同一天打两场比赛。

他们去年开发的新技术填补了我国汽车产业的一项空白。

TOPIC: What do you think is Thomas Edison’ greatest contribution to human progress? The text you should base your composition on is “Edison: Inventor of Invention.”

■ State what his greatest contribution is.

■ Explain the reasons.

■ Draw a conclusion.

尽管会有各祌各样的困难，他还是坚持要做这个新的实验。

教室里太嘈杂了，老师不得不提高嗓门才能让学生听见他的声音。

我们务必做到在任何情况下都言而有信。

The police described one of the arrested men as a leading_______. (terror)

Helen’s brother is a big man of about forty, wide-shouldered and______built. (heavy)

In many countries, men were traditionally expected to be the_______in a family. (bread, winner)

The doctor suggested that the patient go on a diet but he couldn’t resist the_______of rich food. (tempt)