第1题:
16. What do we know about swine flu?
【解析】对话开始提到猪流感是“一种猪身上很常见的呼吸道疾病，通常不会传染给人”。故选B。
第2题:
17. What may cause people to have swine flu?
【解析】对话中男士说“Only people who work with pigs can catch the virus”，只有那些在工作中跟猪接触的人才会感染病毒。
第3题:
18. According to the dialogue, which is among the most common symptoms of swine flu?
【解析】对话中提到常见症状包括“fever, fatigue, lack of appetite and coughing”，B选项“食欲不振”正确。
第4题:
19. What does the speaker advice the suspects of swine flu to do?
【解析】对话中男士给出的建议是不要上学或去工作，要待在家，并且打电话咨询医生如何治疗，而不是立刻去诊所或医院。
第5题:
20. What can be said of the dialogue?
【解析】对话开头便说道“welcome to our program ‘Health Journey'”，最后又说学到很多，感谢对方到来，可以推测这是一个电视节目。
原文：
W: Hello doctor Smith, (20) welcome to our program “Health Journey”. Could you tell us something about swine flu?
M: Well, (16) it’s a common respiratory ailment in pigs that doesn’t usually spread to people.
W: But why are so many people infected?
M: Unlike most cases, this flu virus appears to be a sub-type not seen before in humans or pigs. It has genetic material from pigs, birds and humans, according to the WHO.
W: Then why is it called swine flu? Why pigs are the carriers of this virus?
M: Um. It's closer to say that pigs were the mixing balls for this virus.
W: What does it mean?
M: I mean birds cannot pass bird flu to people. But pigs are susceptible to getting flu viruses that infected birds. The virus inside the infected bird might mutate to a form that could also infect other mammals.
W: Wow, so complicated. By the way, can we catch swine flu from eating pork?
M: Actually, ill pigs are not allowed to enter the market. Cooking also kills the virus. (17) Only people who work with pigs can catch the virus.
W: How do they feel if infected?
M: (18) The most common symptoms are fever, fatigue, lack of appetite and coughing. Although some people also develop runny nose, sore throat, vomiting or diarrhea.
W: What should we do if we have these symptoms?
M: (19) Stay home from work or school. Don’t get on a plane. Call your doctors to ask about the best treatment. Don’t simply show up at the clinic or hospital that is unprepared for your arrival.
W: Say, the antiviral study. How is it going?
M: This strain of swine flu does appear sensitive to the antiviral drugs Relenza(瑞乐沙) and Tamiflu(达菲), but not to Amantadine and Remantadine.
W: We’ve learned a lot tonight. Thanks for your coming. Doctor Smith.
M: It's my pleasure.
