根据句意及汉语或首字母提示，填写恰当的单词。

1. The old couple lived in a house made of _____ (木头).

2. The lights went out, so we had to _____ (点燃) a candle.

3. The dog barked when he heard the _____ (脚步) in the garden.

4. We visited parts of Fujian Province in s_____ China.

5. The moon a           quite big and round tonight.

采煤机喷雾装置要做到什么？