1. (2016九上·海口期中) 用方框内的所给的单词的适当形式填空，每个词只能用一次。

harm     important      spit     strong     breath

1. （1） Can you see the sign "No " in our school?

3. （2） Playing computer games too much is to our eyes.

5. （3） It's difficult for us on the top of the high mountain.

7. （4） Everyone should know the of protecting wild animals.

9. （5） Look! How the wind is blowing!