(完整word版)英语专业四级真题及其答案(word文档良心出品).docx

(完整word版)英语专业四级真题及其答案(word文档良心出品).docx2009 年英语专业四级真题及其答案
PART III CLOZE [15 MIN]
Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on Answer Sheet Two.
Scientists around the world are racing to learn how to rapidly diagnose, treat and stop the spread of a new, deadly disease. SARS -- Severe Acute Respiratory Syndrome ---
was (31) ____ for the first time in February 2003 in Hanoi, (32) _____ since then has
infected more than 1,600 people in 15 countries, killing 63. At this (33) _____, there are
more questions than answers surrounding the disease.
Symptoms start (34) _____ a fever over degrees F, chills, headache or body
(35)____. Within a week, the patient has a dry cough, which might (36) _____ to
shortness of breath. In 10% to 20% of cases, patients require (37)_____ ventilation to
breathe. About % die from the disease. Symptoms (38)____ begin in two to seven
days, but some reports suggest it (39) ____ take as long as 10 days. Scientists are close
to (40) ____ a lab test to diagnose SARS. In the meantime, it is diagnosed by its
symptoms. There is no evidence (41)____ antibiotics or anti-viral medicines help, (42)
_____ doctors can offer only supportive care. Patients with SARS are kept in isolation to
reduce the risk of(43) ____ Scientists aren't sure yet, but some researchers think it's a (44)
____ discovered coronavirus, the family of viruses that cause some common colds.
Most cases appear to have been passed (45) ____ droplets expelled when infected
patients cough or sneeze. Family members of infected people and medical workers who care (46) ____ them have been most likely to (47) ____ the illness. But recent
developments in Hong Kong suggest that the (48) ____ might spread through air, or that
the virus might (49) ____ for two to three hours on doorknobs or other (50)____. Health
experts say it is unlikely, though, that sharing a