一：单词（共10小题，每空1分，满分10分）
2. We must r________ ourselves of these old ideas.
3. Not having had food for over forty hours, we were all weak from h_________.
4. Because of the heavy rain the l________ of the lake has risen 6 inches.
5. It was a new form of ________ (细菌) and nobody knew how it would affect huma
