25. A. kept out　　　　　　　　　　 B. turned down　　　　　 C. held back　　　　　　　　 D. left behind

24. A. wide　　　　　　　　　　　　　 B. similar　　　　　　　　　　　 C. separate　　　　　　　　　 D. unique

23. A. vocabulary　　　　　　　　 B. culture　　　　　　　　　　　 C. grammar　　　　　　　　 D. literature

22. A. errors　　　　　　　　　　　　 B. situations　　　　　　　　 C. systems　　　　　　　　　 D. methods

21. A. Due to　　　　　　　　　　　 B. In addition to　　　　　 C. Instead of　　　　　　　　 D. In spite of

55. In which column can you find this passage?

　A. People.　　 B. Society.　 C. Campus Life.　 D. Lifestyle.

54. It can be inferred from the passage that______.

A. the new operation can solve the water crisis.

B. The new operation can raise students’ environmental awareness.

C. a similar operation has been set in other universities.

D. The university has saved a lot of water by using the new system.

53. Since the new system has performed, ______ of water can be saved.

A. a quarter　 B. one third　 C. one half　 D. two thirds

52. The underline word “flaw” (Paragraph3) most probably means______.

A. perfection　 B. advantage　　 C. pity　　　 D. fault

51. According to the passage, which of the following is NOT true?

A. Students pay for the amount of time they want in the shower.

B. The clock times all through while the student is bathing except when the bather paused for soap.

C. If money runs out, there will be no water.

D. Having finished bathing, the student has to pay for it.