第二部分：英语知识运用
第一节：单项填空（共15小题，每小题1分，满分15分）
从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. We are very shocked at ___ news that Obama has been awarded ____ Nobel Prize in Peace.
A. the; / B. /; / C. /; the D. the; the
22. Effective measures should be taken to ______ the rare species _______ being over-killed by human beings.
A. keep; / B. prevent; from C. stop; to D. protect; for
23. _____ news came ____an unknown disease was spreading in the area.
A. Disturbing; that B. Disturbed; which
C. Disturbing; which D. Disturbed; that
24. ______ the company's increasing third-generation, or 3G, China Unicom Ltd saw new profits.
A. Rather than B. As for C. According to D. Thanks to
25. Tom apologized for _____to inform me of the change in the plan.
A. his being not able B. him not to be able
