10. Mom said to me ,“You will understand it when you are older and (wise) . ”

9. He finished his paper (care) so there were a lot of spelling mistakes.

8. (recycle) has been more and more popular in some areas.

7. Humans,as well as any other (live) thing,should take care of the earth.

B) 根据句意，写出所给单词的正确形式。

6. Cutting down too many trees must be (harm) to nature.

5. The last (步骤) is to add some sauce to make the soup taste better.

4. We are sure to find a (简单的) way to finish this project.

3. He was (惩罚) because of his dangerous driving last month.

2. Our Chinese teacher is a (严肃的) man,but we all like him.

四、  词汇运用。(10分)

A) 根据句意和汉语注释，写出单词的正确形式。

1. They made a (调查) on health last week.