Filters and low tar tobacco2 are claimed to make smoking to some extent safer, but they can only slightly reduce, not eliminate the hazards.
词汇:
vaporize / ’veɪpəraɪz / v.(使)蒸发
membrane / ’membreɪn / n.膜
filter / ’fɪltə(r) / n.过滤嘴
nicotine / ’nɪkəti:n / n.尼古丁
bronchus / ’brɒŋkəs / n.支气管
注释:
1.life expectancy :预期寿命
2.low tar tobacco:焦油含量低的烟草
练习:
1.It is easy to determine whether smoking is hazardous.
A Right B Wrong C Not mentioned
2.Smoking reduces one’s life expectancy.
A Right B Wrong C Not mentioned
3.Smoking may induce lung cancer.
A Right B Wrong C Not mentioned
4.There is evidence that smoking is responsible for breast cancer.
A Right B Wrong C Not mentioned
5.Male smokers have a lower death rate from heart disease than female smokers.
A Right B Wrong C Not mentioned
6.Nicotine is poisonous.
A Right B Wrong C Not mentioned
7.Filters and low tar tobacco make smoking safe.
A Right B Wrong C Not mentioned
答案与题解:
1.B 该题说的是:判断抽烟对健康是否有危害是容易的。但是,文章的第一句话是这么说的:自1939年以来,进行了许多次研究,其目的都是为了判断抽烟对健康是否是一种危害。可以看出判断抽烟对健康是否是一种危害并不容易。
2.A 该题说的是:抽烟会缩短人们的预期寿命。该题源于第一段最后一个句子中的子句:tobacco smoking is associated with a shortened life expectancy抽烟会缩短人们的预期寿命。