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题；每小题1分，满分15分）
21. I often ___ the words I don’t know in the dictionary.
A. look up B. look at C. look for D. look into
22. It took___ building supplies to construct these energy-saving house .It took brains, too
A. other than B. more than C. rather than D. less than
23.Lucy has___ all of the goals she set for herself in high school and is ready for new challenges at university.
A. acquired B. finished C. concluded D. achieved
24. The factory is now producing three times ______ it did ten years ago.
A. that B. when C. what D. how
25. She’ll never forget her stay there ___ she found her son who had gone missing two years before.
A. that B. which C. when D. where
26. We have gathered nearly 100,000 quilts,___ up to half have gone to the flood-hit areas.
A. with which B. in which C. for which D. of which
27. A clean environment can help the city bid for the Olympics, which___ will promote its economic
