2．Which of the following statements is mentioned in the passage?

　　A．In the first stage, the virus hurts its victims much.

　　B．As the virus spreads, it'll change and become more and more deadly.

　　C．The research in Ebola virus is more advanced than that in other viruses.

　　D．The scientists have a negative attitude to the research in Ebola virus.

　　答案：B　推理判断题。根据文章第一段的They found that initially the animal systems were not affected by the virus, but succeeding transmission(传送) into other animals caused the virus to “hot up” and become more severe中的关键词initially可知A是错误的；根据文章的倒数第二段“Our understanding of Ebola virus biology is way behind that of other viruses and our cooperation shows how we can bring together our specialists' skills to close this knowledge gap.”排除C；根据文章最后三段可排除D；根据文章第一段的最后一句话的后半句succeeding transmission(传送) into other animals caused the virus to “hot up” and become more severe可知选B。

　　3．The underlined word “fatal” has the closest meaning to ________.

　　A．optimistic

　　B．deadly

　　C．common

　　D．fantastic

　　答案：B　词义猜测题。optimistic乐观的；deadly致命的；common常见的；fantastic奇异的。根据文章第四段的The information we have gathered will now allow us to monitor for such changes in an outbreak as well as develop future treatment strategies和该段的the evolutionary goal of Ebola virus可知埃博拉病毒变得更加致命。由此推断fatal是致命的。故选B。

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