If you have the flu，get plenty of bed rest and drink lots of fluids.Most people recover from the flu in one to two weeks.Doctors often recommend flu vaccines( 疫苗) for highrisk groups such as young children，the elderly，those with chronic(慢性的) diseases，weak immune systems，or professionals working with high­risk groups.

　　5．Which of the following is true about bird flu?

　　A．It is a disease which can spread among humans and animals.

　　B．Only animals and birds but not humans can be infected by this kind of virus.

　　C．This kind of disease can cause higher death rates among humans.

　　D．Bird flu won't cause the outbreak of an epidemic among humans.

　　答案：A　[细节理解题。由文章中的“Type A viruses can infect people，birds，pigs，horses，seals，whales，and other animals，such as avian flu or bird flu.”可知A项正确。B项与文章内容不相符；C项所讲的是“Type B viruses”引起的感冒的特点；D项内容在文章中找不到根据。故正确答案为A。]

　　6．When you cough or sneeze，a proper suggestion given by the writer is to ________.

　　A．take some medicine at once

　　B．see a doctor to make sure of the disease

　　C．drink more water

　　D．take more exercise and bed rest

　　答案：B　[细节推断题。根据第五段的内容可知，流行性感冒(the flu)往往被误认为是重感冒(cold)，因为它们有着许多相同的症状，所以在得到治疗之前最好去看医生。]

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