第一部分：英语知识运用（共两节，满分30分）
第一节：单项填空（共20小题，每小题0.5分，满分10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标号涂黑。
Play, often seen as____activity for kids, is still important in development of teenagers.
A. the; the B. 
an; the C. an; 不填 D. the; 不填
Sugar is sold by _______ pound, petrol by _______ gallon.
| A．a; a | B．a; the |
| C．the; a | D．the; the |
—Did you enjoy yourself yesterday?
—Yes. As you saw, party went on in _______ most pleasant atmosphere.
| A．the; a | B．the; the |
| C．a; the | D．a; a |
What _______ public is concerned about is whether medical workers and scientists will be able to find _______ cure for this new disease after the vaccine(疫苗) is tried on volunteers.
| A．/；/；/ | B．the；the；/ |
| C．the；/；the | D．the；a；the |
You have been sitting on my hat and now it is badly out of _______.
| A．date | B．shape |
| C．order | D．balance |
She was caught in _______ heavy rain on her way to the lonely island, which was quite _______ experience.
| A．a；/ | B．/；an |
| C．a；an | D．a；a |