阅读理解。 Thirty

题文

阅读理解。 Thirty-six volunteers in South Africa will test the safety of an African-developed vaccine (疫苗) againstHIV. The tests are the first step in human clinical trials of two vaccine candidates developed at the Universityof Cape Town. The experimental AIDS vaccines are the first from Africa to reach testing in people. The National Institutes of Health in the United States provided assistance. Testing with twelve people began earlier this yearin Boston, Massachutts. South Africa has more than five million people infected with HIV, the largest number of any country. South Africa launched the tests last week as the International AIDS Society held a conference in Cape Town. Other human trials of possible vaccines are taking place around the world. Scientists hope to get someresults later this year. But during last week's conference, experts reported the first decrea in international financing for AIDS vaccine rearch. They said funding dropped from about 930 million dollars in 2007 to 870 million last year. Also at the conference, scientists prented the latest findings about new mothers infected with HIV. Two studies showed ways in which anti-HIV drugs could permit infected women to breastfeed their new borns with less risk of passing the virus to them. The rearch was done in Cameroon, Ivory Coast, South Africaand Zambia. In one study, infected mothers began to take three anti-HIV drugs while breastfeeding for up to six months.In a cond study, the babies were given medicine, instead of their mothers. The babies received one drug every day during six months of breastfeeding. The rearchers said both methods greatly reduced the risk of HIV infection.     Laura Guay is Vice President of rearch at the Elizabeth Glar Pediatric AIDS Foundation, which supported the rearch. Doctor Guay says the problem in sub-Saharan Africa is the limited availability of anti-retroviral drugs. LAURA GUAY:"We know that only about 33 percent of women have access to a program that actually has rvices in place to prevent mother-to-child transmission. So the first challenge is, how do we reach allthe women who do not have access to a prevention program?" 1. That South Africa is chon as the first country in Africa to test the safety of an African-developed vaccine against HIV is probably becau ____. A. it has the largest AIDS population B. the vaccine has been developed in South Africa C. the United Nations will offer it assistance D. it has enough volunteers who are AIDS carriers 2. What does Paragraph 6 mainly talk about? A. Women infected AIDS should not breastfeed their newborns.B. Newborns are easily got infected with HIV if their mothers got AIDS. C. Anti-HIV drugs help mothers infected with AIDS avoid transmitting HIV to their babies. D. Both the mother and the newborn can take the anti-HIV drugs. 3. What can we learn from this passage? A. The vaccine will not be ud in clinical trial before it is proved to be safe. B. South Africa was the first country which began the test of the vaccines. C. Anti-HIV drugs have less effect on babies than on their mothers who are affected AIDS. D. only tho women from rich families have access to anti-HIV drugs. 4. According to this passage, what is the problem that the vaccine rearch faced with? A. The decrea in international financing. B. The lack of volunteers. C. The difficulty in human clinical trials. D. Too many AIDS patients. 题型：未知难度：其他题型

答案

1-4: A C A A

解析

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考点

据考高分专家说，试题“阅读理解。 Thir.....”主要考查你对 [健康环保类阅读 ]考点的理解。 健康环保类阅读

健康环保累阅读概念：

健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。

健康环保类文章阅读技巧：

   健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：   第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；   第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；   第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。   从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。【阅读策略】 1、概要(Summarizing)：  阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。 2、组织(Organization)：  阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。