第二部分 英语知识运用（共两节， 满分35分）
第一节 单项选择（共15 小题，满分15分）
21. Here came _____ word that Xi Jinping was elected ______ chairman of the People’s Republic of China.
A. a, the B. the, the C. a, / D. /, /
22. If I hadn’t stood under the ladder to catch you when you fell, you _______ now.
A. won’t smile B. didn’t smile
C. wouldn’t be smiling D. wouldn’t have smiled
23. ----- I was so happy to see the heavy rain last night and the air is much improved today.
-----Yes, but look what the rain ______to the flowers.
A. did B. was doing C. had done D. has done
24. _______ these experiments are interesting, it is important to remember that they may not always tell us much.
A. When B. Since C. While D. Despite
