2011年职称英语等级考试综合类A级通关题一：完形填空
第6部分：完形填空（第51～65题，每题1分，共15分）
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，涂在答题卡相应的位置上。
Life Expectancy in the Last Hundred YearsA hundred years ago，life expectancy in developed countries was about 47: in the early 21st century, men in the United States and the United Kingdom can expect to live to about 74. Women to about 80, and these _____5l____are rising all the time. What has brought _____52____ these changes? When we look at the life_____53_____
of people l00 years ago, we need to look at the greatest_____54_____of the time. In the early 20th century, these were the acute and often _____55_____infectious diseases such as smallpox. Many children died very young from these diseases and others, and the weak and elderly were always at risk.In the_____56_____world these diseases are far_____57____today, and in some cases have almost disappeared. A number of_____58____have led to this: improvements in sanitation and hygiene, the discovery and use of antibiotics, which_____59_____bacterial diseases much less dangerous, and vaccinations接种_____60_____common diseases._____61_____, people's general health has improved with improvements in our general environment: cleaner air, better means of preserving food，better and warmer housing，and better understanding of nutrition. 职称英语考试
Genetically，we should all be able to live to about 85 but____62_____people do live longer today, there are still some big killers around that are preventing us from consistently reaching that age. The problems that affect people today are the more chronic illnesses, such as heart disease and strokes, and those_____63_____by viruses, such as influenza and AIDS l. Of course, cancer is a huge killer as well. In most cases these diseases affect_____64_____people, but there are worrying trends in the developed world with problems such as obesity_____65____more heart disease and illnesses such as diabetes at younger ages.
The killers today can be classed as "lifestyle diseases"，which means that it may be possible to halt their progress.
51． A ages B years C lives D countries
52． A in B about C to D with
53． A length B time C duration D span
54． A people B killers C invention D nation
55． A more B less C high D highly
56． A developed B less developed C undeveloped D developing
57． A more deadly B deadly C 1ess deadly D fatal
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