第二部分英语知识运用（共两节，满分45分）
第一节 单项填空（共15小题，每小题1分，满分15分）
从每题中所给的A﹑B﹑C﹑D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21. What you gave me was _________ encouragement. I've learned independence and self-confidence from you.
A. other than B. more than C. rather than D. no more than
22. A team, _____ two doctors and three policemen, was sent to search for the lost explorers.
A. consisting of B. consists of C. consisted of D. to be consisted of
23. There are some cases _______ students obviously know the school rules but don't obey them.
A. why B. where C. as D. which
24. I'm afraid that the passengers will have to wait at the airport for another day ________ the fog clears up.
A. when B. unless C. if D. though
