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2010年部分英语通读文章的课后练习题(第11课)

(2010-03-03 20:26:50)
标签:

教育

分类: 丽媛2010习题
Lesson 11. Smoking and Cancer1. Americans smoke six thousand million cigarettes every year (1970 figures). This is roughly the _________ of 4,195 cigarettes a year for every person in the country of 18 years of age or more.

A. equal
B. alike
C. uniform
D. equivalent

2. It is estimated that 51% of American men smoke ________34% of American women.

A. to compare with
B. compared with
C. comparing with
D. compared to

3. Since 1939, numerous scientific studies ________to determine whether smoking is a health hazard.

A. have conducted
B. conducted
C. have been conducted
D. are conducted

4. The trend of the evidence has been consistent and________ that there is a serious health risk.

A. indicates
B. hints
C. suggests
D. means

5. Research teams have conducted studies that show beyond all reasonable doubt that tobacco smoking, particularly cigarette smoking, is associated with shortened life _________.

A. expectation
B. expectant
C. expectancy
D. prospect

6. The majority of doctors and researchers consider these relationships proved ______ their satisfaction and say, “Give up smoking. If you don’t smokedon’t start!”

A. with
B. in
C. to
D. at

7. Some ______physicians and research workersthough their small number is decreased even furtherare less sure of the effect of cigarette smoking on health.

A. competent

B. competition
C. component
D. complement

8. As the smoke is breathed in, all these components form deposits on the membranes of the lungs.
A. competent
B. competition
C. component
D. complement

9. One point of concentration is____________. Most lung cancer begins at this point.
A. where the air tube, or bronchus, divides
B. where does the tube, or bronchus, divide

C. when the air tube, or bronchus, divides
D. when does the tube, or bronchus, divide

10.
Filters and low tar tobacco are claimed to make smoking ______ some extent safer, but they can only marginally reduce not eliminate the hazards.

A. with
B. in
C. to
D. at

11. Smoking also ____ the heart and blood vessels.

A. inclines
B. affects
C. effects
D. surplus


阅读11课回答下列问题:
1. As to the connection between smoking and health, in America________________.
A.
numerous researches have been done, but, to our disappointment, no definite conclusion are made

B.
researches can only partially prove their connection because the evidences are not agreeable with each other.

C.
Researches have definitely proved they are reason and effects.

D. Researches, contrary to common belief, have shown except shortened life, smoking has no other bad effects.

2. According to the 4th paragraph, the author indicates_____________.
A.
he is sure that smoking will certainly cause disease of some kind.

B.
Environmental pollutions might be the real cause of various cancers.

C.
It is impossible to find out the real reasons that cause various cancers.

D.
Doctors and research works are universally consistent with one another.


3. Why does lung cancer begin at the point where tube or bronchus divides?
A.
Because it is the point smoke is likely to accumulate.

B.
Because at this point there is more smoke than at the other places in a lung.

C.
Because this point can hold more smoke than other places in a lung.

D.
Up till now this puzzle is still a mystery which science can’t solve.


4. According to the 7th paragraph, the author seems to ___________.
A.
agree with the idea that smoking pipe is much safer than smoking cigarette, thus is an acceptable alternative to cigarette.

B.
Indicates that pipe smoking has nothing to do with mouth and throat caner.

C.
Advocate abandoning smoking.

D.
Pipe smoking can greatly reduces smoke intake.

0

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