2021年职称英语完形填空练习

1、职称英语完形填空练习 One Good Reason to Let S _llpox Live Its now a fair bet that we will never see the total extinction of the s _llpox virus. The idea was to cap the glorious achievement of 1980, when s _llpox was eradicated in the wild, by destroying the killer virus in the last two labs that are supposed

2、to have it one in the US and one in Russia. If s _llpox had truly gone from the pla, 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. Undoubtedly several nations still have_4_ vials. _5_ the las

3、t“official”stocks of live virus bred mistrust of the US and Russia,_6_ no obvious gain. Now American researchers have _7_ an ani _l model of the hu _n disease, opening the _8_for tests on new treatments and vaines. So on _ again theres a good reason to_9_ the virus just in _10_ the disease puts in a

4、 reappearan _. How do we _11_ with the mistrust of the US and Russia? _12_. Keep the virus _13_ international auspi _s in a well-guarded UN laboratory thats open to all countriesThe US will object, of course, just as it rejects a multilateral approach to just about everything. But it doesnt _14_the idea is wrong. If the virus _15_ useful, then lets _ke it the servant of all hu _nity not just a part of it 词汇： s _llpox n天花 vial n小瓶 ausp