第二部分英语知识运用（共两节, 满分35分）
第一节 单项填空（共15小题；每小题1分，满分15分）
21. Most experts agree that washing hands regularly is a ______way to prevent the spread of many diseases.
A. powerful B. illegal C. painful D. awful
22. The little girl seems to ____a lot since I last saw her.
A. have been changed B. have changed C. change D. be changing
23. It is normal for students to feel_______ before the examination even though they have prepared well.
A. serious B. anxious C. energetic D. surprised
24. My brother ______French while he was working in Paris, and he could speak it very well.
A. took up B. put up C. picked up D. gave up
25. The fireman succeeded in saving all the people in the house on fire, _______they knew they were in great danger themselves.
A. because B. since C. unless D. though
