根据句意和首字母提示，在空缺处填入所缺单词

1. Did the children enjoy t________ at the party ?

2. He wrote an a________ for the newspaper, and many people liked to read it.

3. It's important for us to p________ the enviroment(环境).

4. I'm very t________. Could you give me some water to drink?

5. He is very h________. I believe what he says.

滑坡的整治方法有哪些？