An experimental treatment that causes AIDS patients to develop a dangerously high fever has shown promise as a way of prolonging and improving the patients’ life.Called the Biologic-HT System, the new treatment lets doctors extract the blood of a patient and heat it before circulating it back into the body. The heated blood causes the patient’s body temperature to rise above 42 degrees Celsius. In people with AIDS, that increase in temperature kills some heat-sensitive HIV, the virus, most doctors say, causes AIDS.
Heating the blood of AIDS patients has been tried before, say doctors. But during previous attempts, the treatment induced deadly chemical changes in the blood. The Biologic-HT System prevents those changes from happening, allowing the heat to kill viruses with few ill side effects.
The new heat treatment cannot be considered a cure for Aids, says president of the pany that makes the system. He says the treatment doesn’t kill all traces of the virus. However, it kills enough virus particles to give a patient’s immune system a reprieve in its deadly duel with HIV.
Tests of the Biologic-HT treatment began on 36 patients earlier this year. The treatment takes about four hours, and the patient normally feels well enough to leave the hospital or clinic the following morning.
So far, the patients who have had the treatment say they feel better and have developed no new opportunistic infections—disease that strike people with damaged immune systems. The patients also have experienced about a 50 percent increase in the number of T cells in their bodies. T cells are key disease-fighting cells of the immune system and the main target of HIV.
【小题1】This passage is mainly concerned with .A． a way for treating AIDSB． a heat-sensitive virusC． the immune system of the human bodyD． the function of high temperature【小题2】The blood of the patient .A． is heated with a single injectionB． is heated by being circulated at a higher rateC． is taken out from the body and then circulated through a heating system.D．is taken out from the body, heated outside and then put back into the body.【小题3】The previous attempts to use high temperature for treating AIDS failed because they . A．caused chemical changesB．could not kill HIV effectivelyC．resulted in deathsD．killed both HIV and healthy cells【小题4】According to the passage, the new treatment .A．can kill all the HIV virusesB．cannot eliminate the viruses pletelyC． can double the number of disease-fighting cellsD．can reconstruct the patient’s immune system.【小题5】The result of the experiment seems to be .A．disappointingB．inpleteC．successfulD．surprisingA
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(答案→)A
解析：本文讲述了一种新型的治疗艾滋病的方法，把病人的血液抽出来，加热以后再输回病人的体内，通过这种方式来治疗艾滋病。
【小题1】A 主旨大意题。根据文章主题段第一段第一行An experimental treatment that causes AIDS patients to develop a dangerously high fever has shown promise as a way of prolonging and improving the patients’ life.说明本文是关于治疗艾滋病的一种新的治疗方法，故A正确。
【小题2】D 细节题。根据第一段3,4行the new treatment lets doctors extract the blood of a patient and heat it before circulating it back into the body.说明是把病人的血液先抽出来，然后进行加热，最后在输回病人体内，故D正确。
【小题3】A 细节题。根据第二段1,2行Heating the blood of AIDS patients has been tried before, say doctors. But during previous attempts, the treatment induced deadly chemical changes in the blood.说明在先前的实验中，病人的血液在加热的过程中出现了问题，故A正确。
【小题4】B 细节题。根据第3段2,3,4行He says the treatment doesn’t kill all traces of the virus. However, it kills enough virus particles to give a patient’s immune system a reprieve in its deadly duel with HIV说明这种方法并不能完全第杀死艾滋病的病菌，故B正确。
【小题5】C 推理题。根据文章最后一段So far, the patients who have had the treatment say they feel better and have developed no new opportunistic infections—disease that strike people with damaged immune systems. The patients also have experienced about a 50 percent increase in the number of T cells in their bodies. T cells are key disease-fighting cells of the immune system and the main target of HIV.说明到目前为止这个治疗的方法是成功的，故C正确。