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

What do He"s words “Bear in mind undetectable does not equal absent ”mean?

A:AIDS virus can be undetectable in the blood B:AIDS virus is undetectable in the blood C:No AIDS virus can be detected in the blood D:No virus found in the blood means no AIDS

I'd rather you (would go) by train, because I (can't bear) the idea of (your being) in an air plane in (such) bad weather.

A:would go B:can''t bear C:your being D:Such

Passage Four
When an icon (偶像) lasts for more than a century, there is a reason. But what is it about the teddy bear that makes it a lasting symbol in our society Trends experts say that when an icon is rooted in reality, when people grow to love it, and when it represents something larger, it tends to last.
America’s affair with the teddy bear began in the fall of 1902 when then-President Theodore Roosevelt went on a bear hunting trip in the South. He had no luck till the fifth day when he spotted a bear and raised his rifle to shoot--then lowered it when he saw a baby bear in the line of fire, eating honey from its paws. Roosevelt is reputed to have said, "I don’t shoot baby bears." Another story has Roosevelt refusing to shoot a wounded bear.
Washington Post cartoonist Clifford Berryman depicted the bear incidents and began using bears in many political cartoons on many subjects. Soon toy and novelty makers started creating the bears in a wide variety of styles. Quickly the Roosevelt bear and the Teddy bear became the teddy bear -- and everyone had one. A president’s hunting trip became the catalyst (催化剂) for an industry that spans the Western world. Today, an estimated 2.5 million Americans collect teddy bears.
"People tend to anthropomorphize (把......比拟作人) teddy bears," says trends expert Marita Wesely-Clough. "Bears seem to have a personality that is safe, comforting and cuddly (值得搂抱的). Little boys are allowed to love and cuddle bears, where they have been culturally conditioned not to play with dolls. Children tend to keep their teddy bears, and if they don’t, their mothers do."
The teddy bear is a social/cultural leveler that passes national and economic boundaries. The teddy bear icon won’t diminish or go away because it represents loving friendship, care, and comfort Ia feeling of home away from home, says Wesely-Clough.
"The teddy bear is a socially acceptable security blanket that transcends gender, age and nationality," she says.
People imagine that teddy bears inhabit an idealized world without danger or meanness to which we would like to escape, especially during tense or stressful times.
"Bears are popular on greeting cards not only because they are familiar and friendly, but also because people can express through teddy bears what they might not be able to say for themselves," Wesely-Clough says.
On cards for children, for political statements, for expressing loneliness, the teddy bear has been there for nearly nine decades of greeting cards-- harmless, safe and familiar.

A:Teddy Bear and President Theodore Roosevelt. B:The History of Teddy bear. C:Teddy Bear and the Booming of Toy Industry. D:Teddy bear, the Icon That Will Endure.

Passage Four
When an icon (偶像) lasts for more than a century, there is a reason. But what is it about the teddy bear that makes it a lasting symbol in our society Trends experts say that when an icon is rooted in reality, when people grow to love it, and when it represents something larger, it tends to last.
America’s affair with the teddy bear began in the fall of 1902 when then-President Theodore Roosevelt went on a bear hunting trip in the South. He had no luck till the fifth day when he spotted a bear and raised his rifle to shoot--then lowered it when he saw a baby bear in the line of fire, eating honey from its paws. Roosevelt is reputed to have said, "I don’t shoot baby bears." Another story has Roosevelt refusing to shoot a wounded bear.
Washington Post cartoonist Clifford Berryman depicted the bear incidents and began using bears in many political cartoons on many subjects. Soon toy and novelty makers started creating the bears in a wide variety of styles. Quickly the Roosevelt bear and the Teddy bear became the teddy bear -- and everyone had one. A president’s hunting trip became the catalyst (催化剂) for an industry that spans the Western world. Today, an estimated 2.5 million Americans collect teddy bears.
"People tend to anthropomorphize (把......比拟作人) teddy bears," says trends expert Marita Wesely-Clough. "Bears seem to have a personality that is safe, comforting and cuddly (值得搂抱的). Little boys are allowed to love and cuddle bears, where they have been culturally conditioned not to play with dolls. Children tend to keep their teddy bears, and if they don’t, their mothers do."
The teddy bear is a social/cultural leveler that passes national and economic boundaries. The teddy bear icon won’t diminish or go away because it represents loving friendship, care, and comfort Ia feeling of home away from home, says Wesely-Clough.
"The teddy bear is a socially acceptable security blanket that transcends gender, age and nationality," she says.
People imagine that teddy bears inhabit an idealized world without danger or meanness to which we would like to escape, especially during tense or stressful times.
"Bears are popular on greeting cards not only because they are familiar and friendly, but also because people can express through teddy bears what they might not be able to say for themselves," Wesely-Clough says.
On cards for children, for political statements, for expressing loneliness, the teddy bear has been there for nearly nine decades of greeting cards-- harmless, safe and familiar.

A:naming it after President Roosevelt B:designing a series of teddy bear toys C:representing its stories in political cartoons D:representing it on greeting cards

I'd rather you (have gone) by train, because I (can't bear) the idea of (your being) in an airplane in (such) bad weather.

A:have gone B:can't bear C:your being D:such

Clifford Berryman got the teddy bear more popularized by ______.

A:naming it after President Roosevelt B:designing a series of teddy bear toys C:representing its stories in political cartoons D:representing it on greeting cards

I'd rather you (have gone) by train, because I (can't bear) the idea of (your being) in an airplane in (such) bad weather.

A:have gone B:can't bear C:your being D:such