7.Like marrying like
Just as people pair off according to looks, so they do for size. Lean people are more likely to marry lean an d fat more likely to marry fat. On its own, like marrying like cannot account for any increase in obesity. But combined with others- particularly the fact that obesity is partly genetic, and that heavier people have more children-it amplifies the increase form other causes.
1. What is the passage mainly about?
A)effects of obesity on people's health
B)the link between lifestyle an obesity
C)New explanations for the obesity epidemic
D)possible ways to combat the obesity epidemic
2. In the US Nurse' Health Study, women who slept an average of 7 hour a night ____
A)gained the least weight
B)were inclined to eat less
C)found their vigor enhanced
D)were less susceptible to illness
3. The popular belief about obesity is that ______
A)it makes us sleepy
B)it causes sleep loss
C)it increases our appetite
D)it results from lack of sleep
4. How does indoor heating affect our life?
A)it makes us stay indoors more
B)it accelerates our metabolic rate
C)it makes us feel more energetic
D)it contributes to our weight gain
5. What does the author say about the effect of nicotine on smokers?
A)it threatens their health
B)it heightens their spirits
C)it suppresses their appetite
D)it slows down their metabolism
6. Who are most likely to be overweight according to Katherine Flegal's study?
A)heavy smokers
B)passive smokers
C)those who never smoke
D)those who quit smoking
7. According to the US National Center for Health Statistics, the increasing obesity in the US is a result of _____
A)the growing number of smokers among young people
B)the rising proportion of minorities in its population
C)the increasing consumption of high-calorie foods
D)the improving living standards of the poor people
8.according to the US National Heart, Lung and Blood Institute, the reason why older mothers' children tend to be obese remains not entirely clear
9.According to Michael Symonds, one factor contributing to the obesity epidemic is decrease of family size
10 when two heavy people get married, chances of their children getting fat increase, because obesity is party genetiz
答案
1. C. New explanations for the obesity epidemic.
2. A. gained the least weight
3. B. it causes sleep loss
4. D. It contributes to our weight gain.
5. C. It suppresses their appetite.
6. D. Those who quit smoking.
7. B. the rising proportion of minorities in its population
8. unclear
9. family size
10. partly genetic