Company-wide, the potential savings could reach $7.1 million per year, they reported in the Journal of Occupational and Environmental Medicine.
Of the whole group of workers, about 30 percent were of normal weight, 45 percent were overweight (超重的), and 25 percent were obese. Annual health-care costs averaged $2,200 for normal weight, $2,400 for the overweight, and $2,700 for obese employees.
But among workers who did no exercise, health-care costs went up by at least $100 a year, and were $3,000 a year for obese employees who were sedentary.
But adding two or more days of light exercise —— at least 20 minutes of exercise or work hard enough to increase heart rate and breathing —— lowered costs by on average $500 per employee a year, the researchers found.
"This indicates that physical activity behavior could reduce at least some of the harmful effects of excess body fat, and in consequence, help lower the health-care costs," Wang and colleagues wrote.
11 How can employees help lower the health-care costs?
A By taking more rest.
B By eating less.
C By exercising a little bit,
D By saving more money.
12 By encouraging its employees to exercise General Motors could save
A $790,000 per year.
B $7.1 million per year.
C $3,000 per year.
D $7,300 per year.
13 How many workers in General Motors were NOT of normal weight?
A Seventy percent.
B Thirty percent. www.lexue88.com C Forty-five percent.
D Twenty-five percent.
14 For which group of the workers were the health-care costs the highest?
A The employees of normal weight.
B The overweight employees.
C The obese employees.
D The sedentary obese employees.
15 How often should the employees exercise to help lower the health-care costs?
A At least seven days a week.
B At least twenty minutes a week.
C At least twice a week.
D At least once a week.
答案：
1. B 2. C 3. A 4. B 5. C
6. D 7. C 8. A 9. D 10. C
11. C 12. B 13. A 14. D 15. C
第5部分：补全短文(第46～50题，每题2分，共10分)
阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。请将答案涂在答题卡相应的位置上。
The Dangers of Secondhand Smoke
Most people know that cigarette smoking is harmful to their health.Scientific research shows that it causes many kinds of diseases.In fact，many people who smoke get lung cancel However, Edward Gilson has lung cancer, and he has never smoked cigarettes.He lives with his wife，Evelyn，who has smoked about a pack of cigarettes a day throughout their marriage. __________.(46)
No one knows for sure why Mr. Gilson has lung cancer.Nevertheless，doctors believe that secondhand smoke may cause lung cancer in people who do not smoke because nonsmokers often breathe in the smoke. from other people’s cigarettes.__________ (47)The US Environmental Protection Agency reports that about 53，000 people die in the United States each year as a result of exposure to secondhand smoke.
The smoke that comes from a lit cigarette contains many different poisonous chemicals.In the past.scientists did not也ink that these chemicals could harm a nonsmoker’s health. __________ (48)They discovered that even nonsmokers had unhealthy amounts of these toxic(有毒的)chemicals in their bodies.As a matter of fact，almost all of US breathe tobacco smoke at times，whether we realize it or not.For example，we cannot avoid secondhand smoke in restaurants，hotels and other public places.Even though many public places have nonsmoking areas，smoke flows in from the areas where smoking is permitted.It iS even harder for children to avoid secondhand smoke.__________ (49)Research shows that children who are exposed to secondhand smoke are sick more often than children who live in homes where no one smokes and that the children of smokers are more than twice as likely to develop lung cancer when they are adults as are children of nonsmokers.The risk is even higher for children who live in homes where both parents smoke
People are becoming very aware of the dangers of secondhand smoke. __________ (50)
A Recently，though，scientists changed their opinion after they studied a large group of nonsmokers.
B The Gilsons have been married for 35 years.
C 111is smoke is called secondhand smoke.
D However, secondhand smoke is dangerous to all people，old or young.
E As a result，they have passed laws which prohibit people from smoking in many public places. .
F In the United States，nine million children under the age of five live in homes with at least one smoker.
答案：1. B 2. C 3. A 4. F 5. E
第6部分：完形填空
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
Cost as a Factor in Supply
In a purely competitive market, the supplier of goods and services has no control over the market price, because he produces too little to influence market conditions. With no difference between his products and the products __1__ his competitors, he will sell nothing if he charges above the market price and he will sell all if he charges at or __2__ the market price. However, in considering the price, he must take cost of production __3__. There are times when he may be willing to sell below his cost. This might happen when prices tumble for __4__ a short time. However, no business person can __5__ lose money for a prolonged period. He must __6__ of his costs in relation to the market price if he is to compete successfully and earn a profit.
Many people have the impression that as production increases, costs per unit decrease. __7__ mass production has made this true in certain industries and at certain levels of production, __8__ logic and practical experience have shown that costs per unit begin to rise beyond a certain level of production. Some economists __9__ this principle as the law of increasing costs.
The reason __10__ rise as production goes up is complex. However, it is easy to recognize that as production goes up, the need for additional factors of production will also grow, resulting __11__ competitive bidding in the marketplace for the factors of production. If a producer needs __12__ skilled labor to produce more, and none of this labor is unemployed, the producer will have to get __13__ from other sources. This can be done by __14__ higher wages. Higher bidding would also apply to the other factors of production. We must also recognize that not all labor is equally productive, __15__ not all land is equally fertile and not all ore is equally rich in the mineral wanted.
1. A) to B) at C) of D) on
2. A) below B) beneath C) over D) above
3. A) to consider B) into consideration C) to consideration D) in consideration
4. A) he believes will be B) what he believes be C) what he believes will be D) he believes to be
5. A) afford to B) be affordable C) be afforded to D) have afforded
6. A) constantly aware B) constantly knowledgeable of C) be constantly aware of D) constantly aware of
7. A) Because B) Since C) When D) While
8. A) both B) as well as C) also D) but
9. A) refer B) refer to C) call D) are referred to
10. A) cost B) the cost C) the costs D) costs
11. A) from B) in C) D) for
12. A) less B) numerous C) more D) many
13. A) them B) these C) it D) those
14. A) offering B) cutting C) reducing D) having
15. A) as just B) just as C) because D) while
答案：
1. C 2. A 3. B 4. C 5. A
6. C 7. D 8. A 9. B 10. D
11. B 12. C 13. C 14. A 15. B
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