吸菸對人體的健康有嚴重的危害，研究人員大都相信吸捲菸是產生肺癌、喉癌的重要因素。下面是小編分享的中石油職稱英語閱讀練習，文章的內容是關於吸菸和癌症的關係的，希望能對大家有所幫助!
moking and Cancer 吸菸和癌
1. Americans smokesix thousand millioncigarettesevery year(1970figures). This isroughlythe equivalent of 4,195 cigarettesa year for every personin the country of18 years of age or more. It is estimated that 51% of American men smokecompared with34% of Americanwomen.
1、美國人每年抽菸60億支(1970年的統計數字)。這大致等於每個18歲以上的人一年要吸4195支菸。據估計(it is estimated that)，美國有51%的男性吸菸，而女性吸菸的比例則為34%。
2. Since 1939, numerous scientific studieshave beenconducted to determine whether smoking isa health rend of the evidencehas been consistent and indicates that there isa serious health risk. Researchteams have conducted studies that show beyond allreasonabledoubt that tobacco smoking, particularly cigarettesmoking, is associated with shortened life expectancy.
2、1939年以來，為了確定抽菸是否有害健康進行了大量的科學研究。證據所顯示的趨勢是一貫的，並表明對人體的健康有嚴重的`危險。許多研究小組進行的研究不容置疑地表明，吸食菸草，特別是吸捲菸與預期壽命縮短有關。
3. Cigarette smoking is believed by most research workersin this fieldto be an important factorin thedevelopment of cancer of the lungs and cancer of the throat and is believed tobe related to cancer of the bladder and theoral cavity. Male cigarette smokers havea higher death ratefromheart diseasethannon-smoking males. (Femalesmokersare thought to be lessaffectedbecause they do not breathe in the smokeso deeply.) The majority of doctors and researchers consider these relationshipsproved to their satisfaction and say, "Give up smoking. If you don'tsmoke-don't start!"
3、這方面的研究人員大都相信吸捲菸是產生肺癌、喉癌的重要因素，還認為膀胱癌、口腔癌也與此有關。男性吸菸者的心臟病死亡率比不吸菸的高。(他們認為女性吸菸者受影響小一些，因為她們吸菸不那麼深。)大多數醫生和研究人員認為，上述那些關係已得到令人滿意的證實，並且告誡說：“戒菸吧，如果你不會抽-那可不要學!”
4. Some competent physicians and researchworkers-though their small number is decreased even further-are less sure of the effect of cigarette smoking on considertheincrease inrespiratory diseasesandvarious forms ofcancer may possiblybe explained byother factorsin the complex human environment-atmospheric pollution, increasednervous stress, chemical substances in processed food, or chemical pesticidesthat are now being used byfarmers in vast quantities to destroy insects and small ers who develop cancer or lung diseases, they say, may also, by coincidence, live in industrial areas, or eat more canned food. Gradually, however, researchis isolatingall other possiblefactorsand proving them to be statistically irrelevant.
4、有些精通業務的(competent)醫生和研究人員-雖然這些人不多，並且人數在進一步減少-不那麼肯定(be less sure)吸捲菸對人體健康有影響。他們認為呼吸系統疾病(respiratory diseases)和各種癌症的增多也許可以說是由於人類複雜環境中另外一些因素，即：空氣的汙染、人們精神壓力的增大、經過加工的食品中的化學物質、或化學殺蟲藥(pesticide)引起的。農民現在大量使用這些農藥殺死(destory)昆蟲和小動物。據他們說，那些患了癌症或肺病的人可能恰巧(bycoincidence)也住在工業區，或是吃了更多的罐頭食品。但是研究工作逐漸排除了其它因素的可能性，並且用統計數字證明這些因素(對患癌症)是無關的(irrelevant)。
5. Apart from the scientific statistics, it mightbe helpful to look atwhat smoking tobacco actuallydoes tothe human body. Smoke is a mixture of gases,vaporizedchemicals, minute particles of ash, and other solids. There is also nicotine,whichis a powerful poison, and black tar. As the smoke is breathed in, all these components formdepositson themembranes of the lungs. One point of concentration is where the air tube, or bronchus,lung cancerbegins atthispoint.
5、除了(apartfrom)科學統計之外，研究工作還有助於認清(look at)吸食菸草對人體的實際影響(do to 對待, 處置)。抽菸產生的煙霧是一種混合的氣體，包括氣化的(vaporized)化學物質，極小的灰末微粒和其它固體，還有毒性(poison)很強的尼古丁和黑焦油。當吸進煙時，所有這些成分就都沉澱(deposit)在肺膜上。在氣管和支氣管分支的地方有一個集中點。大部分肺癌就從這裡發端。
6. Smoking also affects the heart is known tobe related toBeurger'sdisease, anarrowingof the smallveinsin the hands and feetthatcan cause great pain and lead even to amputation of limbs. Smokers also die much more oftenfromheart disease.
6、抽菸也影響心臟和血管。現已查明抽菸與伯爾格氏病有關。這種疾病使手腳的細靜脈不斷縮小，從而引起劇烈疼痛甚至會導致截肢。抽菸者死於心臟病的也比不吸菸的人多得多(much more)。
7. While all tobacco smoking affects life and expectancy and health, cigarette smokingappearstohavea muchgreater effectthancigar or pipe smoking. However,nicotine consumption is not diminished bythelatterforms, and current research indicatesa causal relationshipbetweenall forms of smokingandcancer of the mouth and ers and low tar tobaccoareclaimed tomake smoking to some extent safer, but they can onlymarginallyreduce, not eliminate the hazards.
7、儘管吸食各種菸草都會影響預期壽命和健康，但是抽香菸的影響要比抽雪茄和抽菸斗大得多。不過，後兩種並不能減少對尼古丁的吸食，並且當前的研究指出各式各樣的吸菸都和口腔癌、喉癌有某種因果關係。據稱(are claimed to)過濾嘴香菸和低焦油煙草能使吸菸在某種程度上比較安全(to some extent safer)，但是這隻能略微(marginally)減少危害，而不能消除(eliminate)危害。
練習：
1. Thisis roughly the _____ of 4195 cigarettes a year for every person in the countryof 18 years of age or more.
A. equal B. equality C. equivalent D. equator
arch teams have conducted studies that show beyond all reasonable doubtthat tobacco smoking, particularly cigarette smoking, is associated _____shortened life expectancy.
A. to B. with C. by D. in
3._____ smoking, if you don’t smoke----don’t start.
A. Give in B. Give away C. Give up D. Give off
4. Some____ physicians and research workers are less sure of the effect of cigarettesmoking on health.
ete B. competent C. competitive D. competence
ers who develop cancer or lung diseases may also, _____, live in industrialareas or eat more canned food.
A. by coincidence B. in coincidence
C. withcoincidence D. of coincidence
6. Itis estimated that 51% of American men smoke _____ 34% of American women.
A. comparing with B. comparing to
C. compared with D. compare to
7. Onepoint of concentration is ______ the air tube, or bronchus, divides.
A. which B. where C. what D. how
ent research indicates a _____ relationship between all forms of smoking ancancer of the mouth and throat.
A casual B causal C cause D course
答案：1 C 2 B 3 C 4B 5 A 6 C 7B 8 B
