阅读理解 The Development of Both HIV And Its Cure As the number of people infected (传染) with the AIDS—causing HIV rose to more than 14 million worldwide and as new research showed that in the U.S. one of every 92 young men may be infected, a cure for the disease still remained an elusive(令人困惑的) dream. To help slow the spread of HIV to infants, the CDC in July called for all pregnant(怀孕的) women to be tested for the virus(毒素). The recommendation (推荐) stemmed (发展) from a. study that found that the risk that an HIV-infected woman will pass the virus on to her unborn child is cut by two-thirds if the mother receives the drug azidothymidine ( AZT) during pregnancy. The year was also marked by the first official recognition (认可)that treating HIV-infected people with a combination(结合) of antiviral(抗毒素的) drugs is superior to treating them with only AZT, a drug that had been the gold standard of treatment since the late 1980s. At an international conference in Copenhagen, a pane(专门小组)of scientists recommended that patients with the AIDS virus receive combination therapy, although there was still no consensus (一致)on when in the course of the disease the drugs should be started. In December the FDA approved the first of a long-awaited new class of AIDS drugs, called protease inhibitors , Physicians emphasized, however, that the new drug, saquinavir, is not a cure and must be taken in combination with other AIDS drugs. A glimmer(微光)of hope for a cure came when a team from the University of Washington reported in November that a new drug, PMPA, prevented monkeys from becoming infected by the monkey version of HIV even when the virus was injected(注射) directly into the animals. The year also provided the research community (界) , with a few more clues (线索) on how to attack HIV. In June researchers found that 70% of West African women infected with a slow-acting, less easily transmitted(传播)type of the virus were protected against infection by the faster-acting type, which was most common in the West. Earlier in the year hopes for lifesaving(救命的) AIDS treatments or vaccines (痘苗) were also bolstered (支持) by an intriguing(激起好奇心的)—and hotly debated—report that at least two children who had been born infected with the AIDS virus later became free of it. Despite the mammoth(巨大的) swath(长而宽的地带) of destruction(破坏) that AIDS has cut around the world since it first surfaced(升到水面) just 15 years ago, it took a much rarer(稀有的)—and much swifter(反应快的)—killer, the Ebola virus, to jolt (唤起) the public out of its complacency(自满) toward the threat of emerging infectious (感染性的) diseases.

单选题 Which of the following may refer to an organization?

单选题 The CDC called on all pregnant women to be tested for HIV______.

【正确答案】 D

【答案解析】文章第1段介绍，CDC号召所有孕妇接受HIV测试；以有助于减慢HIV感染婴儿。这一建议基于一项研究，即感染。HIV的孕妇将会把HIV传染给胎儿，而在怀孕期间接受AZT治疗，这种可能会降低2／3。A)说孩子们不受感染，不正确；B)介绍2／3的孩子感染了HIV，与文章内容无关，也无法从文中看出，B)不正确，孕妇接受测试并不能完全避免儿童感染HIV，而只能减慢，故C)不正确，D)说这一建议的目的在于减少受HIV感染的母亲感染胎儿的机会，与原文相符，D)正确。

单选题 Which of the following statements about HIV and AIDS is NOT TRUE?

【正确答案】 C

【答案解析】文章第2段中指明了有“a slow-acting，less easily transmitted type of the virus”，有“the faster-acting type”，第1段还指出了“the monkey version of HIV”，表明有不同类型的HIV，A)的内容正确，不合题意，文章第1句“the AIDS-causing HIV”，表明HIV可能会引起AIDS，B)正确，不合题意，第3段最后一句中“the mammoth swath of destruction that AIDS has cut”与D)相近，不合题意，C)与文中第1段中“may be infected”不符，不正确，C)。

单选题 Compared with AIDS, Ebola virus______.

单选题 According to the passage______.

【正确答案】 B

【答案解析】文章第2段最后一句关于两个感染了AIDS病毒的孩子日后摆脱了它的报道是“hotly debated，”而不能说大多数科学家相信孩子们会摆脱AIDS病毒，A)不正确；文章第1段中间“saquinavir must be taken in combination with other AIDS drugs”，B)是正确的；关于西非妇女感染HIV的情况，文章并没有介绍，文中提到的70％，是指感染“a slow-acting，less easily transmitted type of the virus”的西非妇女中的70％，C)不正确；华盛顿大学的研究者带来的只是“a glimmer of hope for a cure”，而不是带来了新的治愈方法，D)不正确。