辽宁省实验中学分校2012-2013学年高二下学期阶段性测试（英语）
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
