1.For three quarters of its span on Earth, life evolved almost _________ as microorganisms.

　　A precisely

　　B instantly

　　C initially

　　D exclusively

　　2.Whoever formulated the theory of the origin of the universe, it is just _________ and needs proving.?

　　A spontaneous

　　B hypothetical

　　C intuitive

　　D empirical

　　3._________ are you to leave your post.

　　A. In any case

　　B. In no case

　　C. Without question

　　D. Out of the question

　　4.The future of this company is _________: many of its talented employees are flowing into more profitable net-based businesses.?

　　A at odds

　　Bin trouble

　　C in vain

　　D at stake

　　5.The authors of the United States Constitution attempted to establish an effective national government while preserving _________ for the states and liberty for individuals.?

　　A autonomy

　　B dignity

　　C monopoly

　　D stabilit

　　6. Anything that is dropped from a height falls towards tile center of the earth because of the pull of _________.

　　A. weight

　　B. attraction

　　C. gravity

　　D. density

　　7. Applicants are _________to provide evidence that their English is good enough to study in the United States.

　　A. demanded

　　B. obliged

　　C. due

　　D. necessary

　　8. Are the apples __________enough to eat yet?

　　A. mature

　　B. big

　　C. adult

　　D. ripe

　　9. Are you ________ when you say that you will help me?

　　A. honest

　　B. frank

　　C. sincere

　　D. profound

　　10. The introduction of gunpowder gradually made the bow and arrow _________, particularly in Western Europe.?

　　A obscure

　　B obsolete

　　C optional

　　D overlapping

　　參考答案：DBBDA，:CCDCB