职称英语考试阅读判断的试题练习

职称英语考试阅读判断的试题练习

　　3.Smoking 抽烟

　　Since 1939, numerous studies have been conducted to determine whether smoking is a health hazard. The trend of the evidence has been consistent and indicates that there is a serious health risk. Research teams have conducted studies that show beyond all reasonable doubt that tobacco smoking is associated with a shortened life expectancy.

　　Cigarette smoking is believed by most research workers in this field to be an important factor in the development of cancer of the lungs and cancer of the throat and is believed to be related to cancer of some other organs of the body. Male cigarette smokers have a higher death rate from heart disease than non-smoking male s. Female smokers are thought to be less affected because they do not breathe in the smoke so deeply.

　　Apart from statistics, it might be helpful to look at what smoking tobacco does to the human body. Smoke is a mixture of gases, vaporized chemicals, minute particles of ash and other solids. There is also nicotine, which is powerful poison, and black tar. As smoke is breathed in, all those components form deposits on the membranes of the lungs. One point of concentration is where the air tube and bronchus divides. Most lung cancer begins at this point.

　　Filters and low tar tobacco are claimed to make smoking to some extent safer, but they can only slightly reduce, not eliminate the hazards.

【职称英语考试阅读判断的试题练习】相关文章：

2013职称英语阅读判断模拟试题09-25

2016年职称英语《理工类》阅读判断模拟试题09-26

职称英语考试试题模拟08-06

职称英语考试试题及答案08-10

商务英语考试练习试题09-26

2014年职称英语考试试题综合类c级阅读理解强化练习题608-07

2009职称英语考试模拟试题（卫生类）08-06

2017职称英语考试改编题模拟试题08-05

大学期末英语考试练习试题09-26

小升初语文阅读短文练习试题及答案08-13