职称英语理工类阅读理解的精选练习题(3)

　　Treatment for Dengue Fever 　　But hope is offered by research being carried out at the Southwest Foundation for Biomedical Research in San Antonio, which relies on very special mice. 　　Lead researcher Rebecca Rico-Hesse says the mice have been modified or humanized by an infusion of stem cells taken from human umbilical cords that were discarded at local hospitals. We have basically reconstituted the human immune system in these mice and it is only because they have these immune system cells that they can get infected and show symptoms of dengue fever, she said. 　　Major U.N. and international aid agencies are launching a Call to Action to help poor countries prepare for and protect people from the H1N1 swine flu. 　　World Health Organization spokesman, Paul Garwood, says this Call to Action aims to reduce the impact of H1N1 by offering a range of measures applicable to all countries. 　　We see in Zimbabwe, as a result of the cholera outbreak, the cholera command and control center was established, which eventually helped bring the cholera outbreak under control, he said. Now, in Zimbabwe that same system is being used to respond to the H1N1 outbreaks, or cases that have been reported there. 　　Red Cross Senior Officer for Public Health and Emergencies, Tammam Aloudat says, without the support of these and numerous other partner agencies, it will not be possible to tackle the pandemic. In addition, he says, it is critical to empower individuals and communities to protect themselves. 　　The aid agencies say several steps are key to reducing the impact of the pandemic. These include identifying populations at increased risk of disease and death, reducing death by treating acute respiratory illness and pneumonia, and reducing the spread of the disease by informing the public about simple protective measures 　　A.The H1N1 influenza will continue to spread. 　　C.Rich countries should pay special attention to fighting the disease. 　　正确答案:A 　　2.According to Garwood, the purpose of this Call to Action is 　　B.to urge people in poor counties not to eat pork. 　　D.to set up perfect health systems in all countries and eradicate any possibility of the comeback of the disease 　　解析:问题问的是：加伍德认为这一行动号召的目的是什么?第三段提到他的观点提供一系列适用于所有国家的方法，减小流感带来的影响 　　A.has never had a humanitarian crisis. 　　C.doesnt have a system to respond to any pandemic. 　　正确答案:B 　　4.Which agency has NOT signed the Call to Action document 　　B.The U.N. Organization for the Coordination of Humanitarian Assistance. 　　D.The U.N. Educational Scientific and Cultural Organization 　　解析:问题问的是：一下哪家机构没有签署行动号召文件?文章第六段可以清楚的发现答案，只有D联合国教科文组织没有提到 　　A.Identifying populations at increased risk of disease and death. 　　C.Informing the public about simple protective measures. 　　正确答案:D 　　By infecting these humanized mice with strains of the dengue virus, investigators can study how the disease takes hold and what factors might cause the more serious and often deadly dengue hemorrhagic fever. 　　Lab workers infect the mice artificially with the virus, keeping precise records of how much virus and what type of virus is used. But natural transmission of dengue by mosquitoes involves certain proteins the insects inject into the skin, something that Rico-Hesse says is missing when mice are artificially infected in the lab. 　　Rico-Hesse and her colleagues are breeding mosquitoes in the laboratory to test various strains of the dengue virus transmitted to the mice by mosquitoes. 　　1.Which statement is correct according to Paragraph 1 　　B.Strong effect of certain medication can cure dengue fever. 　　D.Scientists have invented a vaccine that can prevent dengue fever 　　解析:问题问的是：根据第一段，正确的是哪一项?第一段中提到，没有疫苗和药物能预防或治愈登革热，只有消灭所有携带病毒的蚊子才能防止被感染。由此可见，C选项正确 　　A.have red eyes. 　　C.are put in the room with lots of mosquitoes. 　　正确答案:D 　　3.According to the report, the virus strains that cause the more severe dengue and hemorrhagic fever are actually 　　B.from a special mosquito. 　　D.killable with a specific genetic variant 　　解析:问题问的是：能够导致更加严重的登革热和出血热的病毒株实际上是什么?第六段最后一句中提到这两种病毒株其实是属于同一种基因变异体。因此选A。容易引起混淆的是D选项，其中提到了特殊变异体，只是该选项的意思是说病毒可以被病毒的特殊变异体杀死，显然不对。注意killable，是 kill和able组成的合成词，意为可杀死的 　　A.Lab workers inject into the mice the fever virus with a syringe . 　　C.The artificial infection of virus has exactly the same effect as the natural one. 　　正确答案:A 　　5.What is the authors attitude to the future of the researchers work 　　B.Pessimistic. 　　D.Sarcastic 　　解析:问题问的是：作者对该项研究的前景持何种态度?纵观全文，作者始终非常客观的叙述试验的细节及进展情况，包括最后对前景的展望都是引用研究人员的原话。因此，他的态度应该是客观的。C选项正确