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共86小题，约4320字。

　　辽宁省实验中学分校2012-2013学年度下学期阶段性测试
　　英语学科高二年级
　　第一卷
　　第一部分：英语知识运用（共两节，满分45分）
　　第一节：单项填空（共15小题；每小题1分，满分15分）
　　21. Not everyone has realized what ________important part the balance of ________nature plays in their life.
　　A．an；the    B．/；the       C．an；/       D．the；/
　　22. Einstein’s most famous theory is ______ we call the Theory of Relativity.
　　A. what     B. that       C. which  D. why
　　23._____ to finish this composition in such a short time is a mystery.
　　A. How did he manage                B. What did he manage
　　C. How he managed                  D. What he managed
　　24.—Did you remember to give Mary the money you owed her?
　　—Yes. I gave it to her ________I saw her.
　　A．while       B．the instant    C．suddenly   D．once
　　25. Some people ________cruel experiments on animals ________science.
　　A．make；by the name of             B．carry；in the name of
　　C．make；in the name of             D．carry out；by the name of
　　26. I have devoted four weekends to writing papers and now I feel I ________a rest.
　　A．deserve   B．preserve    C．perceive   D．receive
　　27..—I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.
　　—________！I’m sure you’ll make it.
　　A．Go ahead                     B．Good luck
　　C．No problem                    D．Cheer up
　　28..When he loop，he suddenly found himself ______by a group of teenagers，____looked at him anxiously.