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约4950字。
　　“Moudle2 DNA—the Secret of Life”单元测试卷
　　单项选择（1X15）
　　21------ What do you suppose made her so happy?
　　------ ____________ the entrance examination.
　　A. Because of pasting B. Because he pasted C. having been past D. having pasted
　　22.I lay in the sofa, enjoying the beautiful music Jack had __________ out of his DVD.
　　A. e B. it e C. it ing D. ing
　　23.I’d love ________ to your party last Sunday if not because of the unexpected guests.
　　A to go B. going C. having gone D. to have
　　24.The class _____ over, I found her ______ at her desk ________ to the pop music.
　　A. was; seated ; listening B. being ; seated ; listening
　　C. was ; seating ; listened D./ ; sat ; listening
　　25.The 66- year- old Saddam Hussein was finally caught _________ in a cave , which was considered a victory ever since the outbreak of the war.
　　A. hidden B. to hide C. hiding D. to be hidden
　　26. Many feared that bus would fall off the edge of the earth,________ it to be flat.
　　A. having believed B. believing C. to believe D. believed
　　27.What ____ beautiful weather! Great for ______ holiday.
　　A. a ; a B. the ; the C. the ; a D. / ; a
　　28.Johnson had made up his mind to give it up, but on ______ second thought he determined to try_______ third time.
　　A. / ; a B. / ; / C. a ; a D. the ; the
　　29._________ Beijing we’ll see in ______ year 2008 will be quiet _____ different city from what it is now.
　　A. / ; the ; a B. The ; the ; a C. The ; the; the D. / ; / ; /
　　30.Most experts predict that all these changes will lead to _____ strong and powerful China,____ country that can surprise the whole world .
　　A. the ; a B. / ; the C. / ; a D. a ; a
　　31.According to the traffic accident, in an attempt to get the ______ of it , the reporter interviewed every eyewitness.
　　A. root B. base C. center