相同项单选集
相同项单选集
New Attempts to Eradicate AIDS Virus
high-profile1 attempt to eradicate the AIDS virus in a few patients continues to show promise.
But researchers won"t know for a year or more whether it will work, scientist David Ho told journalists here Wednesday for the Fourth Conference in Viruses and Infections.
“This is a study that"s in progress2，” says Ho, head of the Aaron Diamond AIDS Research Center, New York.
The study involves 20 people who started combinations of anti-HIV drugs very early in the course of3the disease, within 90 days of their infections. They"ve been treated for up to 18 months. Four others have dropped out because of side effects or problems complying with the exacting drug system.4
The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients.5 And, in the latest development6, scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there, Ho says. “ Bear in mind that7 undetectable does not equal absent,"Ho says.
Ho has calculated that the drugs should be able to wipe out remaining viruses 一 at least from known reservoirs throughout the body 一 in two to three years. But the only way to prove eradication wouli be to stop the drugs and see if the virus comes back8. On Wednesday, Ho said he wouldn"t ask any patient to consider that step before 2 years of treatment.
And he emphasized that he. is not urging widespread adoption of such early, aggressive treatment outside of trials9. No one knows the long-term risks.
But other scientists are looking at similar experiments. A federally funded study10 will put 300 patients on triple-drug treatments11 and then see if some responding well after six months can continue to suppress the virus on just one or two drugs ’ says researcher Douglas Richman of the University of California, San Diego. Some patients in that study also may be offered the chance to stop therapy after 18 months or more, he says.
词汇：
eradicate / ɪ"rædɪkeɪt/vt. 根除，消灭
infection / ɪn"fekʃn/n. 传染，感染
exacting / ɪgˈzæktɪŋ/adj. 严格的，苛刻的
lymph node 淋巴结
semen / "si:mən/n. 精液
reservoir / "rezəvwɑ:(r)/n.水库，(寄生物或病菌的)储主
aggressive / əˈgresɪv/adj.敢作敢为的，放开 手脚的
suppress / sə"pres/vt.抑制，压制
注释：
1.high-profile：引，很多关注的（反义词low-profile:不引人注意的）
2.in progress：进行中
3.in the course of：在……过程中
4.Four others have dropped out because of side effects or problems complying with the exacting drug system.有4人因副作用或难以遵循严格的疗程而中途退出了试验。
5.The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients.这些药物把所有其他病人血液中的AIDS病毒降到了难以发现的低水平。
6.in the latest development：这个短语常用在新闻报道中，表示“最新的情况是……”；另有一 个类似的短语in another development表示在它之后是另一条新闻。
7.bear in mind that：牢记心中。that引导的从句作bear的宾语。
8.come back：重现
9.outside of trials：试验范围以外
10.a federally funded study：由联邦政府资助的研究项目
11.put 300 patients on triple-drug treatments：让 300 名病人接受三倍药量的治疗
According to the passage, the attempt to eradicate the AIDS virus____
A:continues to be hopeful B:Will be successful in a year C:will be successful in future D:will stop being hopeful
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 potent potential weapon. Undoubtedly several nations still have 【54】 vials. 【55】 the last" official" stocks of live 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 once 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. smallpox n. 天花 vial n. 小瓶 auspices n.赞助；支持 cap vt. 结束；覆盖 potent adj. 有效力的；强有力的 mistrust n. 不信任，怀疑
A:keep B:put C:destroy D:eradicate
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. Undoubtedly several nations still have (4) vials. (5) the last "official" stocks of live virus bred mistrust of the US and Russia (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.
A:keep B:put C:destroy D:eradicate
A:keep B:put C:destroy D:eradicate
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. Undoubtedly several nations still have (4) vials. (5) the last "official" stocks of live virus bred mistrust of the US and Russia, (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.
smallpox n. 天花
vial n. 小瓶
auspices n. 赞助；支持
cap vt. 结束；覆盖
potent adj. 有效力的；强有力的
mistrust n. 不信任，怀疑
A:keep B:put C:destroy D:eradicate
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 potent potential weapon. Undoubtedly several nations still have 【54】 vials. 【55】 the last" official" stocks of live 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 once 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. smallpox n. 天花 vial n. 小瓶 auspices n.赞助；支持 cap vt. 结束；覆盖 potent adj. 有效力的；强有力的 mistrust n. 不信任，怀疑
A:keep B:put C:destroy D:eradicate
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
| {{B}}? ? ? ? ? ? ?
? ? ? ? ?A Most Important Period in Greek{{/B}} ? ?One of the most important periods in Greek history was the Hellenistic Age which began after the death of Alexander the Great in 323 B. C., and lasted almost 200 years. It was during this time in history that Greek ideas and Greek culture spread into Egypt and throughout the Near East. A Greek state even existed{{U}} ?(51) ?{{/U}}India. During the Hellenistic Age, there were great advances{{U}} ?(52) ?{{/U}}in Greek scholarship in such areas as philosophy, science, religion, art and social justice. Important discoveries were made in the{{U}} ?(53) ?{{/U}}. Eratosthenes, for instance, made an accurate calculation{{U}} ?(54) ?{{/U}}the diameter of the earth, while Aristarchus declared that the earth{{U}} ?(55) ?{{/U}}round. Social reformers attempted to{{U}} ?(56) ?{{/U}}debt and{{U}} ?(57) ?{{/U}}a program of land redistribution among the poor hut met with little success. Women achieved a better social{{U}} ?(58) ?{{/U}}and among the middle class education became widespread. ? ?Peace of mind was the great concern of the philosophers of the Hellenistic Age. The Stoics insisted that happiness could be achieved when{{U}} ?(59) ?{{/U}}learned to accept the events which were{{U}} ?(60) ?{{/U}}his control and, at the same time, did his duty. The Epicureans{{U}} ?(61) ?{{/U}}the idea that moderation in pleasure and the avoidance of pain produced the desired result. The Cynics turned away from all desires and pleasures, and{{U}} ?(62) ?{{/U}}pursuit of virtue. In religion, many Greeks{{U}} ?(63) ?{{/U}}the worship of such Egyptian gods as Serapis and Isis. ? ?During the Hellenistic Age, the area of Greek influence included such political powers as the Ptolemies of Egypt, the Seleucids of Syria, the Antigonids of Macedon and the Attalids of Pergamum, and it was their fighting against each other and{{U}} ?(64) ?{{/U}}themselves that{{U}} ?(65) ?{{/U}}the way for the aggressive Romans to conquer Greece and most of the Hellenistic world in the 100’s B.C. The Romans brought the Hellenistic Age to a close when they conquered the last major power, Egypt, in 30 B. C. |
A:extradite B:extinguish C:eradicate D:abolish
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