29. Obama, the first black president in American history, ________ presidency on January 20th, 2009.

　 A. set up　　　　　 B. held up　　　　　　 C. took up　　　　　 D. picked up

28. With the effects of global warming, trees 　　　　　their leaves much later in the year.

A. are losing　　　 B. have lost　　　　　 C. lost　　　　　　　 D. were losing

27. To her disappointment, what she had devoted herself to _______ in nothing but failure.

A. resulting　 　　　 　B. results　　　　　　 C. has resulted　　　　 D. resulted

26. ______ I enjoy the book with some nice pictures, I don’t have enough money to buy it.

A. Since　　　　　 B. While　　　　　　 C. As　　　　　　　　 D. If

25. I used to go camping a lot, so it won’t be the first time I 　　　　in a tent.

A. have slept　　　　 B. had slept　　　　 C. was sleeping　　　　 D. slept

24. We went to Mountain Tai last weekend, ______, not surprisingly, was crowded with visitors.

　A. where　　　　　　 B. which　　　　　　 C. that　　　　　　 D. when

23. The company provides cheap Internet access. _______, it makes shareware freely available.

A. In addition　　　 B. In brief　　　　　 C. In return　　　　　 D. In common

22. -Better get down to your work, Jack.

- ________ .

A. It’s my pleasure　　　　　　　　　 B. Not to mention it

C. Mind your own business　　　　　 D. You are welcome

第一节 语法和词汇(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。

21. _______ global financial crisis is 　　__ challenge for the whole world. Confidence, cooperation and responsibility are keys to overcoming the crisis.

A．A；the　　　 B．A；a　　　　　　 C．The, the　　　 D．The；a