题目内容：

单词拼写（满分5分，每小题各0.5分）

1.Mike r____________ our team and gave a speech at the meeting.

2.Nothing could have been more a____________.

3.Since her c____________ she had wanted to work with animals in their own environment.

4.The party then searched the whole cave t____________ but did not find anything.

5.He has pointed out that the tree is a useful source of i____________.

6.It rained and t____________ the football match was put off.

7.The Hubble will tell us a great deal about the age and size of the u____________.

8.The most u____________ car was a Benz which had only three wheels.

9.At that time, hunger was a d____________ problem in many parts of the countryside.

10.This work will not be easy; we have to o____________ the difficulty.