2012年自考英語一試題精選（9）
下列短文中有十個空白，每個空白有四個選項。根據(jù)上下文要求選出最佳答案。
Yellow fever is a disease of warm lands that is found mainly along the shore of the Atlantic Ocean. It was first 11 in the Americas, but may well have come from Africa and reached the New World with or soon after Columbus. Until about fifty years ago, yellow fever was still one of the most 12 diseases in the United States, 13 many died in repeated outbreaks. An outbreak which was to lead 14 surprising developments was one that happened in Cuba during the Spanish-American War.
15 , an army group under Major Walter Reed was sent there in June, 1900 16 orders “to give special attention to questions concerning the cause and prevention of yellow fever”. In a daring group of experiments using human beings, Major Reed proved the truth of an idea advanced in 1881 by a Cuban doctor, that the city type of mosquito 17 the disease.
The successful result of these experiments gave 18 to another and still more important idea: kill off the city type of mosquitoes and there will be no more yellow fever. 19 , these mosquitoes are one of the easiest types to destroy. They are 20 in pools of quiet, warm water, within a short distance to people's home.
11.A.seen B. looked into C. noticed D. felt
12.A.feared B. fearing C. fear D. felt
13.A.which B. where C. that D. how
14.A.for B. in C. to D. at
15.A. As results B. As the result
C. As result D. As a result
16.A.for B. on C. with D. in
17.A.passed on B. passed to
C. passed over D. passed away
18.A.time B. result C. birth D. order
19.A.Unfortunately B. Fortunately
C. Consequently D. Subsequently
20.A.fed B. lived C. made D. born
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