雅思阅读常考题型介绍：寻找观点、论点或其他具体信息（学术类）
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雅思阅读常考题型：寻找作者观点、论点或文章中的具体信息
Academic Reading sample task – Identifying writer’s views/claims
The Risks of Cigarette Smoke
Discovered in the early 1800s and named ‘nicotianine’, the oily essence now
called nicotine is the main active ingredient of tobacco. Nicotine, however, is
only a small component of cigarette smoke, which contains more than 4,700
chemical compounds, including 43 cancer-causing substances. In recent times,
scientific research has been providing evidence that years of cigarette smoking
vastly increases the risk of developing fatal medical conditions.
In addition to being responsible for more than 85 per cent of lung cancers,
smoking is associated with cancers of, amongst others, the mouth, stomach and
kidneys, and is thought to cause about 14 per cent of leukemia and cervical
cancers. In 1990, smoking caused more than 84,000 deaths, mainly resulting
from such problems as pneumonia, bronchitis and influenza. Smoking, it is
believed, is responsible for 30 per cent of all deaths from cancer and clearly
represents the most important preventable cause of cancer in countries like the
United States today.
Passive smoking, the breathing in of the side-stream smoke from the burning of
tobacco between puffs or of the smoke exhaled by a smoker, also causes a serious
health risk. A report published in 1992 by the US Environmental Protection
Agency (EPA) emphasized the health dangers, especially from side-stream
smoke. This type of smoke contains more smaller particles and is therefore more
likely to be deposited deep in the lungs. On the basis of this report, the EPA has
classified environmental tobacco smoke in the highest risk category for causing
cancer.
As an illustration of the health risks, in the case of a married couple where one
partner is a smoker and one a non-smoker, the latter is believed to have a 30 per
cent higher risk of death from heart disease because of passive smoking. The
risk of lung cancer also increases over the years of exposure and the figure jumps
to 80 per cent if the spouse has been smoking four packs a day for 20 years. It
has been calculated that 17 per cent of cases of lung cancer can be attributed to
high levels of exposure to second-hand tobacco smoke during childhood and
adolescence.
A more recent study by researchers at the University of California at San
Francisco (UCSF) has shown that second-hand cigarette smoke does more harm
to non-smokers than to smokers. Leaving aside the philosophical question of
whether anyone should have to breathe someone else’s cigarette smoke, the
report suggests that the smoke experienced by many people in their daily lives is
enough to produce substantial adverse effects on a person’s heart and lungs. Academic Reading sample task – Identifying writer’s views/claims
The report, published in the Journal of the American Medical Association (AMA),
was based on the researchers’ own earlier research but also includes a review of
studies over the past few years. The American Medical Association represents
about half of all US doctors and is a strong opponent of smoking. The study
suggests that people who smoke cigarettes are continually damaging their
cardiovascular system, which adapts in order to compensate for the effects of
smoking. It further states that people who do not smoke do not have the benefit
of their system adapting to the smoke inhalation. Consequently, the effects of
passive smoking are far greater on non-smokers than on smokers.
This report emphasizes that cancer is not caused by a single element in cigarette
smoke; harmful effects to health are caused by many components. Carbon
monoxide, for example, competes with oxygen in red blood cells and interferes
with the blood’s ability to deliver life-giving oxygen to the heart. Nicotine and
other toxins in cigarette smoke activate small blood cells called platelets, which
increases the likelihood of blood clots, thereby affecting blood circulation
throughout the body.
The researchers criticize the practice of some scientific consultants who work
with the tobacco industry for assuming that cigarette smoke has the same
impact on smokers as it does on non-smokers. They argue that those scientists
are underestimating the damage done by passive smoking and, in support of
their recent findings, cite some previous research which points to passive
smoking as the cause for between 30,000 and 60,000 deaths from heart attacks
each year in the United States. This means that passive smoking is the third
most preventable cause of death after active smoking and alcohol-related
diseases
The study argues that the type of action needed against passive smoking should
be similar to that being taken against illegal drugs and AIDS (SIDA). The UCSF
researchers maintain that the simplest and most cost-effective action is to
establish smoke-free work places, schools and public places. Academic Reading sample task – Identifying writer’s views/claims
Questions 4 – 7
Do the following statements reflect the claims of the writer in the reading passage?
In boxes 4-7 on your answer sheet write
YES if the statement reflects the claims of the writer
NO if the statement contradicts the claims of the writer
NOT GIVEN if it is impossible to say what the writer thinks about this
4 Thirty per cent of deaths in the United States are caused by smoking-related
diseases.
5 If one partner in a marriage smokes, the other is likely to take up smoking.
6 Teenagers whose parents smoke are at risk of getting lung cancer at some time
during their lives.
7 Opponents of smoking financed the UCSF study. Academic Reading sample task – Identifying writer’s views/claims
Answers:
4 NO
5 NOT GIVEN
6 YES
7 NOT GIVEN
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