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

Which is NOT true about the study?

A:There are 20 patients involved in the study B:The patients have used several anti-HIV drugs C:The patients have been treated for up to 18 months D:16 patients did not go through the whole study

—I'm going to study engineering in Tsinghua University tomorrow.
—（　）.

A:All the best in your study B:All the best with your study C:All the best in your business D:All the best in your new job

—I'm going to study engineering in Tsinghua University tomorrow.
— （）.

A:All the best in your study B:All the best with your study C:All the best in your business D:All the best in your new job

For serious study, an anthropologist ______.

A:must not study his own culture B:is not supposed to have a prejudice against any society C:should focus on those societies which are historically related to each other D:is obliged to work only on those societies which have no historical relationship to each other

(A number) of these (who) (study) engineering is improving (steadily).

A:A number B:who C:study D:steadily

(A number) of these (who) (study) engineering is improving (steadily).

A:A number B:who C:study D:steadily

(A number) of these (who) (study) engineering is improving (steadily).

A:A number B:who C:study D:steadily