2 . 词性转换
1. extend vt.扩展；使伸长；延长→________ adj.广泛的；广阔的→________n．延伸；扩大；延期
2. applaud vt.&vi.鼓掌 vt.称赞；赞赏→________n．掌声
3. man vt.给……配置(人员)；操纵(机器等)；在……岗位上工作→________ adj.有人控制的；需人操纵的
4. murder vt.谋杀；凶杀；毁坏 n．谋杀；凶杀→________n．杀人犯；杀人凶手
5. possess vt.拥有；具有；支配→________n．[usually pl.]个人财产；拥有；控制
6. coverage n．新闻报道；覆盖范围→________ v．覆盖；涉及；包含；采访，报道 n．封面，盖子

5 . Given the breadth of her research, her ______ knowledge on the topic is evident in every chapter of her book.

A．superficial

B．intensive

C．explosive

D．extensive

9 . 选词填空

A. extensive

B. express

C. engage

D. literacy

E. harmony

1. In order to ________ his gratitude, he wrote “I’m much obliged to you for helping us!” at the beginning of the letter.
2. To investigate how ________ levels differed between boys and girls in the U.S., the team studied data collected over three decades in the National Assessment of Educational Progress.
3. According to Guan Zhengwen, the director of Letters Alive, it is this kind of humanity behind every letter that strikes a ________ with the audience.
4. Scientists discovered Zealandia all the way back in 1995, then started ________ research on the area using underwater and satellite mapping technology.

10 . It is quite necessary for a qualified teacher to have good manners and ______ knowledge.

A．extensive

B．expansive

C．expensive

D．intensive