such certainty. We know the train will take one of the tracks leading out, but we have no idea which
one. The unseen switches are the true decision points in the future, and what happens when we
arrive at them determines the entire subsequent course of events.
When we think about the future of the universe, we can see our \billions of years into
the future, but after that there are decision points to be dealt with and possible fates to consider. The
goal of science is to reduce the ambiguity at the decision points and find the true road that will be followed.
16. According to the passage, it is difficult to be certain about the dist universe because we ____.
A. have too many conflicting theories
B. do not have enough funding to continue our research C. are not sure how the universe is put together
D. have focused our investigations on the moon and planets
17. What does the author see as the function of the universe's unseen \A. They tell us which one of the tracks the universe will use. B. They enable us to alter the course of the universe. C. They give us information about the lunar surface.
D. They determine which course the universe will take in the future. 18. In the second paragraph, the word \of the following?
A. Band B. Rails C. Path D. Sequence
19. For whom is the author probably writing this passage? A. Train engineers. B. General audiences. C. Professors of statistics. D. Young children.
20. Which of the following statements best describes the organization of the passage?
A. A statement illustrated by an analogy (类比). B. A hypothesis supported by documentation (引用文献). C. A comparison of two contrasting theories. D. A critical analysis of a common assumption.
PartⅡ Vocabulary and Structure(20﹪，25minutes)
Directions: There are 40 incomplete sentences in this part. For each sentence there are four
choices marked A, B, C and D. Choose the ONE answer that best completes the sentence. Then
mark the corresponding letter on the Answer Sheet with a single line through the center.
21. A great many cancers can be cured but only if ____before they have begun spread or
\A. properly treat B. properly treating C. being properly treated D. properly treated
22. ____she is a likeable girl, she is very difficult to work with. A. Since B. However C. As far as D. While
23. All the ____tourists gave the robber their money. A. frightened B. frightening C. frighten D. frightful
24. ____her age, she really did a good job in such a short time. A. Giving B. Gives C. Give D. Given
25. The soldier was ____with neglecting his duty. A. charged B. conducted C. changed D. committed 26. The reason why the car stopped was ____. A. because the road was not good B. that the road was not good C. due to the bad road D. because of the had road
27. You'd better hurry; ____you might be late for class. A. or B. and C. unless D. but
28. They ____on a trip into the desert in the following year. A. set in B. sent for C. set off D. sent off
29. The doctor felt John's arm to ____if the bone was broken. A. work out B. find out C. look at D. see out
30. He just ____my suggestion at the meeting yesterday. A. put away B. shut down C. showed off D. brushed aside 31. The question ____at the next meeting remains a secret. A. discussed B. to discuss C. to be discussed D. being discussed 32. His laziness ____his failure in the final exam. A. gave up B. contributed C. resulted in D. distributed
33. The teacher's ____to my statement about this poet led me to read widely about poems.
A. change B. charge C. challenge D. chance
34. On most of the nights, Jane ____reading letters from her boyfriend. A. stayed off B. stayed on C. stayed out D. stayed up
35. The first-year students were learning from the army in Miyun, a suburb of Beijing near ____I lived.
A. what B. where C. that D. which
36. Lynda and hundreds of young people like him ____the post of typist. A. approached B. applied for C. appealed to D. approved of 37. Prices have been ____rapidly in many cities. A. went up B. gone up C. going up D. go up
38. In this building each apartment could ____a family of six. A. house B. cover C. make D. include
39. I can hardly hear what he's saying, and ____. A. so can all the other people B. nor can all the other people C. so can hardly all the other people D. nor all the other people can
40. When he explained it again and again, the students' patience ____. A. ran over B. ran on C. ran out D. ran off
41. When her neighbor Grandma Wang became ill, the girl often ____. A. fitted in B. worked out C. held back D. helped out
42. If you really want to apply for the dangerous job, I won't ____, though I
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