One Good Reason to Let Smallpox Live
Its 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 theres 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 thats open to all countries. The 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 make it the servant of all humanity not just a part of it
词汇：
smallpox /sm??lp?ks/ n.天花
cap /kaep/vt.结束;覆盖
killer /k?l?/ n.杀死物;杀人者
potent /p??tnt/ adj.有效力的;强有力的
vial /va??l/ n.小瓶
mistrust /m?str?st/ n.不信任，怀疑
auspices /??sp?s?z/ n.赞助;支持
注释：
1. In reality, of course, it was naive to imagine that everyone would let go of such a potent potential weapon.当然,想象每个人都会放弃这样一种有效的潜在的武器事实上是幼稚的。
2. And the last officialstocks of live virus bred mistrust of the US and Russia...:美俄最后的官方活病毒储备引起大家对这两个国家的不信任。
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
8. A. method B. road C. street D. way
9. A. keep B. put C. destroy D. eradicate
10. A. need B. case C. necessity D. time
11. A. handle B. tackle C. deal D. treat
12. A. Difficult B. Hard C. Safe D. Simple
13. A. under B. in C. on D. for
14. A. say B. mean C. state D. declare
15. A. will be B. would be C. is D. are