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第一篇

New Attempts to Eradicate AIDS Virus

A high-profile 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 on Viruses and Infections.
"This is a study that's in progress,"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 of the
disease,within 90 days of their infections.They'ye been treated for up to 18 months.Four others have
dropped out because of side effects or problems complying with the exacting drug system.
The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining
patients.And,in the latest development,scientists have now tested lymph nodes and semen from a few
patients and found no virus reproducing there,Ho says."Bear in mind that 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—in two to three years.But the only way to prove eradication would be to stop
the drugs and see if the virus comes back.On Wednesday,Ho said he wouldn't ask any patient to consider
that step before 2(1/2)years of treatment.
And he emphasized that he is not urging widespread adoption of such early,aggressive treatment outside
of trials.No one knows the long-term risks.
But other scientists are looking at similar experiments.A federally funded study will put 300 patients on
triple-drug treatments 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 1 8 months or more,he says.

We prove that the drugs have wiped out the remaining viruses by________.
A:using up all the drugs at once
B:waiting for the virus to die slowly
C:asking the patients'feeling about the disease
D:stopping the drugs to see if the virus comes back

参考答案

参考解析
解析：由文章第一段可知，消灭艾滋病病毒的努力依然有着乐观的前景，故选C。
由文章第四段最后一句“Four others have dropped out because of side effects or problems complying with the existing drug system.”可知，有4位病人从治疗计划中退出，因为当前的治疗 计划对他们产生了副作用或者其他问题，故选C。
由文章第五段的内容可知，检测不到艾滋病病毒并不等于它不存在，即艾滋病病毒可 能是检测不到，但是它还可能隐藏在人体中，故选A。
由文章第六段第二句“But the only way to prove eradication would be to stop the drugs and see if the virus comes back.”可知，证明所用的药物确实消灭了艾滋病病毒的唯一方法就是先 停药一段时间，然后看病毒是否会重新肆虐，故选D。
由文章的最后三段内容可知，在David Ho的研究中，要确认残余的艾滋病病毒已被药 物消灭的话，需要2一3年的时间。在最后一段中一项由联邦政府资助的研究将测试时间限定 在6个月；一些病人可能在约18个月后停止治疗，故选D。第二篇 本篇文章主要讲述的是不丹王国的国王采用国民幸福指数（GNH）来衡量国家的进步，以及 此举带来的影响。
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考题 共用题干 第三篇Infection of AIDSAccording to a report of the World Health Organization,this year will see 2.6 million deaths from AIDS,the highest yearly international total since the disease began to take hold in the late 1970s, despite questionable antiretro-viral drugs（抗逆转录酶病毒药）that staved off AIDS deaths in the richer countries.As things stood,the number of deaths was likely to increase for many years before peaking. The report said about half of all people who acquired HIV become infected before they turned 25 and usually died before their 35th birthdays of AIDS,which destroys the body's immune methods.Although ninety-five percent of people with HIV live in the developing world,battling HIV rates was still a challenge in the developed countries of the West,where there are"very worrying facts" that safe sex practices are dropping among gays.While AIDS deaths in the United States dropped by 42 percent between 1996 and 1997,the figure dropped by only half that between 1997 and last year.The report added that in Eastern Europe and Central Asia,the number of infected people had risen by a third this year,to 360,000.This was mainly due to an increase in the use of infected needles to inject drugs in Russia and the Ukraine. More than 2,700 cases of HIV were reported in Moscow in the fitst nine months of this year.Although cases of HIV remain relatively low in the Middle East,increasing use of injected drugs accounted for two thirds of new HIV cases in Bahrian last year,half in Iran and more than a third in Tunisia.AIDS is a life-threatening disease because__________.A:it makes people unable to fight infectionB:it kills the largest number of peopleC:it has the longest historyD:more and more people are killed by AIDS
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考题 共用题干 AIDSThe World Health Organization(WHO)says as many as 10 million persons worldwidemay have the virus that causes AIDS（艾滋病）.Experts believe about 350, 000 personshave the disease.And one million more may get it in the next five years. In the UnitedStates,about 50,000 persons have died with AIDS.The country's top medical official says more than 90 percent of all Americans who had the AIDS virus five years ago are dead.There is no cure for AIDS and no vaccine（疫苗）or medicine to prevent it. However, researchers know much more about AIDS than they did」ust a few years ago.We now know that AIDS is caused by a virus.The virus invades healthy cells,including white blood cellsthat are part of our defense system against disease.It takes control of the healthy cell's genetic material and forces the cell to make a copy of the virus.The cell then dies.And the virus-caused particles move on to invade and kill more healthy cells.The AIDS virus is carried in a person's body fluids.The virus can be passed sexually or by sharing instruments used to take intravenous（进入静脉的）drugs. It also can be passed in blood products or from a pregnant woman with AIDS to her developing baby.Many stories about the spread of AIDS are false.You cannot get AIDS by working or attending school with someone who has the disease.You cannot get it by touching drinking glasses or other objects used by such persons.Experts say no one has gotten AIDS by living with,caring for or touching an AIDS patient. According to the WHO,there are now 10 million AIDS patients in the world.A:Right B:Wrong C:Not mentioned
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考题 共用题干 第一篇New Attempts to Eradicate AIDS VirusA high-profile 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 on Viruses and Infections."This is a study that's in progress,"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 of the disease,within 90 days of their infections.They'ye been treated for up to 18 months.Four others have dropped out because of side effects or problems complying with the exacting drug system.The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients.And,in the latest development,scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there,Ho says."Bear in mind that 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—in two to three years.But the only way to prove eradication would be to stop the drugs and see if the virus comes back.On Wednesday,Ho said he wouldn't ask any patient to consider that step before 2(1/2)years of treatment.And he emphasized that he is not urging widespread adoption of such early,aggressive treatment outside of trials.No one knows the long-term risks.But other scientists are looking at similar experiments.A federally funded study will put 300 patients on triple-drug treatments 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 1 8 months or more,he says. The words"Bear in mind that undetectable does not equal absent" by Ho's means_________.A:AIDS virus can be undetectable in the bloodB:AIDS virus is undetectable in the bloodC:no AIDS virus can be detected in the bloodD:no virus found in the blood means no AIDS
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考题 共用题干 AIDSThe World Health Organization(WHO)says as many as 10 million persons worldwidemay have the virus that causes AIDS（艾滋病）.Experts believe about 350, 000 personshave the disease.And one million more may get it in the next five years. In the UnitedStates,about 50,000 persons have died with AIDS.The country's top medical official says more than 90 percent of all Americans who had the AIDS virus five years ago are dead.There is no cure for AIDS and no vaccine（疫苗）or medicine to prevent it. However, researchers know much more about AIDS than they did」ust a few years ago.We now know that AIDS is caused by a virus.The virus invades healthy cells,including white blood cellsthat are part of our defense system against disease.It takes control of the healthy cell's genetic material and forces the cell to make a copy of the virus.The cell then dies.And the virus-caused particles move on to invade and kill more healthy cells.The AIDS virus is carried in a person's body fluids.The virus can be passed sexually or by sharing instruments used to take intravenous（进入静脉的）drugs. It also can be passed in blood products or from a pregnant woman with AIDS to her developing baby.Many stories about the spread of AIDS are false.You cannot get AIDS by working or attending school with someone who has the disease.You cannot get it by touching drinking glasses or other objects used by such persons.Experts say no one has gotten AIDS by living with,caring for or touching an AIDS patient. The cause of AIDS remains a mystery to researchers.A:Right B:Wrong C:Not mentioned
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考题 共用题干 第一篇New Attempts to Eradicate AIDS VirusA high-profile 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 on Viruses and Infections."This is a study that's in progress,"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 of the disease,within 90 days of their infections.They'ye been treated for up to 18 months.Four others have dropped out because of side effects or problems complying with the exacting drug system.The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients.And,in the latest development,scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there,Ho says."Bear in mind that 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—in two to three years.But the only way to prove eradication would be to stop the drugs and see if the virus comes back.On Wednesday,Ho said he wouldn't ask any patient to consider that step before 2(1/2)years of treatment.And he emphasized that he is not urging widespread adoption of such early,aggressive treatment outside of trials.No one knows the long-term risks.But other scientists are looking at similar experiments.A federally funded study will put 300 patients on triple-drug treatments 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 1 8 months or more,he says. According to the passage,the attempt to eradicate the AIDS virus________.A:hasn't been made seriouslyB:is appreciated by California UniversityC:continues to show promiseD:will be successful in two and a half years
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考题 共用题干 One Good Reason to Let Smallpox LiveIt'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 vims 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 virusjust 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 at 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.59._________A:. keepB: putC: destroyD: eradicate
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考题 共用题干 第一篇New Attempts to Eradicate AIDS VirusA high-profile 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 on Viruses and Infections."This is a study that's in progress,"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 of the disease,within 90 days of their infections.They'ye been treated for up to 18 months.Four others have dropped out because of side effects or problems complying with the exacting drug system.The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients.And,in the latest development,scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there,Ho says."Bear in mind that 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—in two to three years.But the only way to prove eradication would be to stop the drugs and see if the virus comes back.On Wednesday,Ho said he wouldn't ask any patient to consider that step before 2(1/2)years of treatment.And he emphasized that he is not urging widespread adoption of such early,aggressive treatment outside of trials.No one knows the long-term risks.But other scientists are looking at similar experiments.A federally funded study will put 300 patients on triple-drug treatments 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 1 8 months or more,he says. Other scientists are looking at experiments that are similar in that they are studying_______.A:the ways the patients are treatedB:the size of the experimentC:the cost of the experimentD:the time the experiment takes
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考题 共用题干 AIDSThe World Health Organization(WHO)says as many as 10 million persons worldwidemay have the virus that causes AIDS（艾滋病）.Experts believe about 350, 000 personshave the disease.And one million more may get it in the next five years. In the UnitedStates,about 50,000 persons have died with AIDS.The country's top medical official says more than 90 percent of all Americans who had the AIDS virus five years ago are dead.There is no cure for AIDS and no vaccine（疫苗）or medicine to prevent it. However, researchers know much more about AIDS than they did」ust a few years ago.We now know that AIDS is caused by a virus.The virus invades healthy cells,including white blood cellsthat are part of our defense system against disease.It takes control of the healthy cell's genetic material and forces the cell to make a copy of the virus.The cell then dies.And the virus-caused particles move on to invade and kill more healthy cells.The AIDS virus is carried in a person's body fluids.The virus can be passed sexually or by sharing instruments used to take intravenous（进入静脉的）drugs. It also can be passed in blood products or from a pregnant woman with AIDS to her developing baby.Many stories about the spread of AIDS are false.You cannot get AIDS by working or attending school with someone who has the disease.You cannot get it by touching drinking glasses or other objects used by such persons.Experts say no one has gotten AIDS by living with,caring for or touching an AIDS patient. Men are more easily infected with AIDS than women.A:Right B:Wrong C:Not mentioned
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考题 共用题干 AIDSThe World Health Organization(WHO)says as many as 10 million persons worldwidemay have the virus that causes AIDS（艾滋病）.Experts believe about 350, 000 personshave the disease.And one million more may get it in the next five years. In the UnitedStates,about 50,000 persons have died with AIDS.The country's top medical official says more than 90 percent of all Americans who had the AIDS virus five years ago are dead.There is no cure for AIDS and no vaccine（疫苗）or medicine to prevent it. However, researchers know much more about AIDS than they did」ust a few years ago.We now know that AIDS is caused by a virus.The virus invades healthy cells,including white blood cellsthat are part of our defense system against disease.It takes control of the healthy cell's genetic material and forces the cell to make a copy of the virus.The cell then dies.And the virus-caused particles move on to invade and kill more healthy cells.The AIDS virus is carried in a person's body fluids.The virus can be passed sexually or by sharing instruments used to take intravenous（进入静脉的）drugs. It also can be passed in blood products or from a pregnant woman with AIDS to her developing baby.Many stories about the spread of AIDS are false.You cannot get AIDS by working or attending school with someone who has the disease.You cannot get it by touching drinking glasses or other objects used by such persons.Experts say no one has gotten AIDS by living with,caring for or touching an AIDS patient. A.pregnant woman with AIDS cannot pass the virus to her developing baby.A:Right B:Wrong C:Not mentioned
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考题 共用题干 第一篇New Attempts to Eradicate AIDS VirusA high-profile 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 on Viruses and Infections."This is a study that's in progress,"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 of the disease,within 90 days of their infections.They'ye been treated for up to 18 months.Four others have dropped out because of side effects or problems complying with the exacting drug system.The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients.And,in the latest development,scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there,Ho says."Bear in mind that 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—in two to three years.But the only way to prove eradication would be to stop the drugs and see if the virus comes back.On Wednesday,Ho said he wouldn't ask any patient to consider that step before 2(1/2)years of treatment.And he emphasized that he is not urging widespread adoption of such early,aggressive treatment outside of trials.No one knows the long-term risks.But other scientists are looking at similar experiments.A federally funded study will put 300 patients on triple-drug treatments 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 1 8 months or more,he says. Which is NOT true about Ho's study?A:20 patients were involved in the study.B:The patients have used several anti-HIV drugs.C:16 patients withdrew from the experiment.D:The patients have been treated for up to 1 8months.
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考题 Could you pass me the salt and pepper?（）ASorry, I didn't know what you mean.BOk, here you are.CNo, I won't.DI don't know.
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考题 Could you pass me the salt and pepper?（）A、Sorry, I didn't know what you mean.B、Ok, here you are.C、No, I won't.D、I don't know.
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考题 单选题Could you pass me the salt and pepper?（）A Sorry, I didn't know what you mean.B Ok, here you are.C No, I won't.D I don't know.
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考题 问答题Practice 1　　Once again, science supports what your grandmother told you: A good night’s sleep helps your body fight a cold.　　People who (1)______ fewer than seven hours of sleep per night in the weeks before being (2)______ to the cold virus were nearly three times as likely to get sick as those who averaged eight hours or more, a new study found.　　Researchers used frequent telephone (3)______ to track the sleep habits of more than 150 men and women aged 21 to 55 over the course of a few weeks. Then they exposed the (4)______ to the virus, quarantined (隔离) them for five days and kept track of who got sick.　　(5)______ sleeping more, sleeping better also seemed to help the body fight illness: Patients who fared better on a measure known as “sleep efficiency”—the percentage of time in bed that you’re (6)______ sleeping—were also less likely to get sick.　　The results held true even after researchers adjusted for (7)______ such as body-mass index, age, sex, smoking and pre-existing antibodies to the virus.　　Like your grandmother, the researchers aren’t exactly sure why sleeping better makes you less likely to develop a cold. But they do take a stab at the answer: “Sleep (8)______ influences the regulation of proinflammatory cytokines, histamines, and other symptom mediators that are released in (9)______ to infection.” In plain English, maybe tossing and turning when you’re infected with the cold virus (10)______ to the symptoms that define a cold.[A] subjects　　　　　　[B] disruption　　　　　 [C] exposed[D] contributes　　　　 [E]interviews　　　　　　[F] Despite[G] actually　　　　　　[H] properties　　　　　 [I]response[J]variables　　　　　　[K]action　　　　　　　　[L]averaged[M]Besides　　　　　　　[N]partially　　　　　　 [O]disturbance
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考题 单选题The passage tells us that _____.A HIV was found more than two years earlier than AIDS was identifiedB people know a little more about HIV than about most other virusesC AIDS continues to rage more wildly in Africa than in AsiaD HIV will mainly affect the poor and minority groups in the U.S.
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