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，并在答题卡上将该选项涂黑。
21. ________ incident made me realize the importance of having good first-aid training, so I organized and took part in ________ training course.
A. The; the B. The; a C. An; the D. An; a
22. Most people say that pay is their main ___________ for working.
A. attention B. tendency C. motivation D. excitement
23. The colors of purple and yellow fade easily when _________ to the sunlight.
A. being exposed B. exposing C. exposed D.to be exposed
24. At the meeting the spokesman ______ our country’s position on the Diaoyu Island.
A. published B. cleared C. clarified D. announced
25. When _______ imported goods for children, I am ________ about all the different labels on food these days.
A.choosing;confused B. chosen; confusing
C. chosen; frightened D. choosing; frightening
26. Plastic bags are provided for our convenience, but they have also ________ pollution of the environment.
