問題詳情

II. Sentence Structure: Choose the best answer from the box below for each blank in thepassage.Questions 16-20Severe acute respiratory syndrome (SARS) is a serious form of pneumonia. It is caused by a member of the coronaviruses, a virus family which can cause the common cold. Infection with theSARS virus causes severe breathing difficulty and sometimes death.When someone with SARS coughs or sneezes, infected droplets spray into the air. You cancatch the SARS virus if you 16 . The SARS virus may live on hands, tissues, and othersurfaces for up to 6 hours in these droplets and up to 3 hours 17 . While the spread of dropletsthrough close contact caused most of the early SARS cases, SARS might also spread by hands andother objects the droplets have touched. Airborne transmission is a real possibility in some cases.Live virus has even been found in the stool of people with SARS, where it has been shown to livefor up to 4 days. The virus 18 for months or years when the temperature is below freezing.With other coronaviruses, 19 is common. This may also be the case with SARS.Symptoms usually occur about 2 to 10 days after coming in contact with the virus. There have beensome cases 20 . People with active symptoms of illness are contagious, but it is not known forhow long a person may be contagious before or after symptoms appear.
(A) becoming infected and then getting sick again (re-infection)
(B) where the illness started sooner or later after first contact
(C) breathe in or touch these particles
(D) after the droplets have dried
(E) may be able to live
16
(A) becoming infected and then getting sick again (re-infection)
(B) where the illness started sooner or later after first contact
(C) breathe in or touch these particles
(D) after the droplets have dried
(E) may be able to live

參考答案

答案：C
難度：簡單0.769231
統計：A(1),B(0),C(10),D(1),E(0)

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