理工类C级试卷押中题目——完型填空：
One Good Reason to Let Smallpox Live
It’s now a fair bet that we will never see the total extinction of the smallpox virus. The idea was to cap the glorious achievement of 1980, when smallpox was eradicated in the wild, by destroying the killer virus in the last two labs that are supposed to have it—one in the US and one in Russia. If smallpox had truly gone from the planet, what point was there in keeping these reserves?
____51 reality, of course, it was naive to____52 that everyone would let____53 of such a potential weapon. Undoubtedly several nations still have____54 vials.____55 the last “official” stocks of lice virus bred mistrust of the US and Russia, ____56 no obvious gain.
Now American researchers have ____57 an animal model of the human disease, opening the ____58 for tests on new treatments and vaccines. So one again there’s a good reason to____59 the virus—just in____60 the disease puts in a reappearance.
How do we____61 with the mistrust of the US and Russia? ____62 . Keep the virus____63 international auspices in a well-guarded UN laboratory that’s open to all countries. The US will object, of course, just as it rejects a multilateral approach to just about everything. But it doesn’t____64 the idea is wrong. If the virus____65 useful, then let’s make it the servant of all humanity—not just a part of it.
51. A) In B) On C) At D) For
52. A) know B) imagine C) realize D) be aware
53. A) to go B) going C) go D) went
54. A) much B) more C) most D) a few
55. A) And B) While C) Whereas D) Although
56. A) since B) for C) because D) of
57. A) looked for B) sought C) found D) talked about
58. A) method B) road C) street D) way
59. A) keep B) put C) destroy D) eradicate
60. A) need B) case C) necessity D) time
61. A) handle B) tackle C) deal D) treat
62. A) Difficult B) Hard C) Safe D) Simple
63. A) under B) in C) on D) for
64. A) say B) mean C) state D) declare
65. A) will be B) would be C) is D) are
答案：ABCDA BCDAB CDABC
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