27. This soup is cold; it needs _______.
A. to heat B. to be heated C. being hot D. heated
26. When she returned home, she found the window open and something ______.
A. stealing B. stole C. stolen D. to steal
25. Ladies and gentleman, please fasten your seat belts. The plane ______.
A. takes off B. is taking off C. has taken off D. took off
24. The computer centre, ____ last year, is very popular among the students in this school.
A. open B. opening
C. having opened D. opened.
23. That beggar seems _____ anything yesterday.
A. not to have eaten B. not to eat
C. didn't eat D. to not have eaten
22. The sports meet will be ____ till next week because of the bad weather.
A. put off B. put away C. put up D. put down
从每题所给的A、B、C和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. A single mistake here could ____ you your life.
A. pay B. take C. spend D. cost
4.(8分)现有无标签的稀蛋清、葡萄糖、 淀粉和淀粉酶溶液各一瓶,可用双缩脲试剂、斐林试剂和淀粉溶液将它们鉴定出来。请回答:
(1)用一种试剂将上述4种溶液区分为两组,这种试剂是_____________ ,其中发生显色反应的一组是_________ 和____________ 溶液,不发生显色反应的一组是 __________和 ___________溶液。
(2)用_______________ 试剂区分不发生显色反应的一组溶液
(3)区分发生显色反应一组溶液的方法及鉴定结果是__________________ 。
福州八中2010-2011高三毕业班第一次质量检查
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