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，并在答题卡上将该项涂黑。
21. ---I don’t believe smoking can damage your health as long as you exercise regularly.
---______! Years of medical research show smoking is a stupid and expensive way to ruin your health.
A. Nonsense B. You bet C. Sounds good D. Cheers
22. _________environmental damage，I think，is necessary for every citizen.
A．Limit B．Limiting C．Being limited D．To be limited
23. Public transport provides a cheap way to __________ in Beijing.
A．get around B．get over C．get back D．get across
24. piano is her main focus, she’s also great at guitar.
A. Since B. Once C. Unless D. While
25. ---What do you think of the idea of Web TV?
