Ⅰ.任务型阅读(共10小题；每小题1分，满分10分)
(2015·南京市高三第一次模拟考试)
The Ebola Virus
Currently, the world is facing an epidemic (流行病) due to what is considered to be among the most dangerous viruses that humanity has ever faced — the Ebola bleeding virus. Though there were announcements about experimental treatments that were reported to be successful in terms of treating the virus, people around the world continue to die from Ebola.
Ebola was first discovered in 1976 in Africa, on the banks of the Ebola River, after which the virus has been named. Back then, there were two major outbreaks of the virus, and this is how people learned about it. There exist several strains of the Ebola virus, some of them are deadly to people, and some are not.
The main symptoms of Ebola can appear in a period between the second and the 21st days of infection, but usually it happens on the eighth through 10th day. Among the symptoms that appear in the first turn, one should mention fever and chills, strong headaches, pain in joints and muscles, and general weakness. These symptoms are not too different from those that people usually experience when catching a severe cold, or flu, so victims may even ignore these symptoms, or try to treat them as a common sickness. However, as the virus keeps progressing, a patient develops nausea (恶心) with vomiting, diarrhea, chest and stomach pains, red eyes and rash over the body, severe weight loss, and bleeding from almost all bodily openings.
