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职称英语考试卫生类A级完形填空专项练习题二

分类:职称英语   更新:2016/8/7   来源:本站原创

    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?

    ____1____reality,of course,it was naive to____2____that everyone would let____3____of such a potent potential weapon.1 Undoubtedly several nations still have____4____vials.

    ___5_____the last"official"stocks of live virus bred mistrust of the US and Russia,2____6____no obvious gain.

    Now American researchers have___7_____an animal model of the human disease,opening the____8____for tests on new treatments and vaccines.So once again there's a good reason to____9____the virus —just in____10____the disease puts in a reappearance.

    How do we____11____with the mistrust of the US and Russia?____12____Keep the virus_____13___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____14____the idea is wrong.If the virus____15____useful,then let's make it the servant of all humanity—not just a part of it

    练习:

    1.A.In B.On C.At D.For

    2.A.know B.imagine C.realize D.be aware

    3.A.to go B.going C.go D.went

    4.A.much B.more C.most D.a few

    5.A.And B.While C.Whereas D.Although

    6.A.since B.for C.because D.of

    7.A.looked for B.sought C.found D.talked about

 &nb

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