题目内容：

单词填空：（注意使用其正确形式，每小题1分，共10分）

1.The witness _________________( 陈述 ) that he had not seen this woman before.

2.She returned from the vacation, feeling relaxed and _____________( 振奋 ).

3.He has made a great ________________( 贡献 ) to protecting the environment.

4.The _____________( 平均 ) income in my family is increasing.

5.He is full of _______________( 焦虑 )，for the exam is coming.

6.Tom was _________________( 任命 )  as Chairman of the Trade Union.

7.Prices are going up ________________( 平稳地 ) .

8.Don’t be ______________( 失望 ). Something good will come along sooner or later.

9.What are the harmful______________( 影响 ) of smoking ?  

10.Things can easily go wrong when people are under _________( 压力 ).