21.(2008全國II) Modern equipment and no smoking are two of the things like _______ working here.
A. with B. over C. at D. about
答案：D
解析：本題考查介詞?！癐 like … working here”作定語修飾“the things”，少的是like的賓語，后面是表示關于在這里工作，所以應該用介詞about。

22.(2008北京) If you really have to leave during the meeting, you’d better leave _______ the back door.
A. for B. by C. across D. out
答案：B
解析：本題考查介詞。這里表示“走”后門出去，用介詞by表示“經(jīng)，由，通過”。

23.(2008天津) Many Chinese universities provide scholarship for students _______ financial aid.
A. in favor of B. in honor of C. in face of D. in need of
答案：D
解析：本題考查介詞短語。句意“中國許多大學都為需要資金援助的學生提供獎學金”。In favor of“贊成，支持”；in honor of“向……表示致敬，祝賀”；in face of“面臨”；in need of“需要”。

24.(2008安徽) Fred entered without knocking and, very out of breath, sank _______ a chair.
A. on B. off C. into D. to
答案：C
解析：本題考查介詞。sank into a chair“一屁股坐在椅子上”。

25.(2008湖北) When she first arrived in China, she wondered what the future might have _______ for her, but now her worries are gone.
A. in need B. in time C. in preparation D. in store
答案：D
解析：本題考查介詞短語辨析。這里用have sth. in store表示“準備著，必將發(fā)生，就要到來”。

26.(2008浙江) Why are you so anxious? It isn’t your problem _______.
A. on purpose B. in all C. on time D. after all
答案：D
解析：本題考查介詞短語辨析。根據(jù)前一句可知你沒有必要這么擔心，這“畢竟”不是你的問題。on purpose表示“故意”；in all表示“總計”；on time表示“按時”；都不符合題意。

27.(2008江蘇) – Why do you suggest we buy a new machine?
-- Because the old one has been damaged _______.
A. beyond reach B. beyond repair?C. beyond control D. beyond description
答案：B
解析：本題考查beyond的用法。beyond repair無法修理，修不好。

28.(2007山東) I have offered to paint the house _______ a week’s accommodation.
A. in exchange for B. with regard to C. by means of D. in place of
答案：A
解析：本題考查介詞短語。in exchange for意為“交換，以此易彼”。根據(jù)句意可判斷出通過油漆房屋來換一周的食宿。with regard to意為“關于”；by means of意為“用，憑借”；in place of意為“代替”。

29.(2007天津) _______ fire, all exits must be kept clear.
A. In place of B. Instead of C. In case of D. In spite of
答案：C
解析：本題考查介詞短語。in case of“以防萬一”，根據(jù)其賓語fire可判斷出“為了防止火災，一切出口都要清洗干凈”。In place of“代替”；instead of“代替，而不是”；in spite of“不管”。

30.(2007浙江) The open-air celebration has been put off _______ the bad weather.
A. in case of B. in spite of C. instead of D. because of
答案：D
解析：本題考查介詞。because of“因為”。根據(jù)句意可判斷出取消露天慶祝大會的原因是惡劣的天氣。In case of“假設，萬一”；in spite of“不管”；instead of“代替，而不是”。

31.(2007全國I) The manager suggested an earlier date _______ the meeting.
A. on B. for C. about D. with
答案：B
解析：本題考查介詞。介詞for表示“為了……”，最符合題意。

32.(2007四川) Some students often listen to music _______ classes to refresh themselves.
A. among B. between C. over D. during
答案：B
解析：本題考查介詞。between“位于……之間，處在……之間，介于……之間”，表示兩者之間。

33. (2007北京) This is a junior school. You should go to a senior school _______ girls of your age.
A. for B. about C. from D. to
答案：A
解析：本題考查介詞。for“對于……而言”。根據(jù)句意可判斷出“你應該去符合你年齡的女子高中讀書”。

34.(2007福建) Although _______ my opinion, the old professor didn’t come up with his own.
A. against B. on C. for D. in
答案：A
解析：本題考查介詞。against“相反，反對”，against my opinion“反對我的想法”。句意“雖然那位老教授反對我的想法，但他沒有提出自己的想法”。