五、单词拼写与运用（共 8 小题，计 8 分）

根据句意完成已给出首字母或汉语提示的单词，使补全后的句子意思通顺，语法正确。

1. Mount Tai is 1545 meters h _______ above sea level.

2. There is a famous saying, 'East or w_______, home is the best.'

3. You can lose w_______ by eating less and keeping exercise more.

4. I didn't s _______ well. I woke up several times during the night.

5. Please keep _______（安静）when you are in a library.

6. Do you need to _______（讨论）the problem in groups?

7. Students should answer questions loudly and _______（清楚）in class.