第4部分:阅读理解(第31~45题,每题3分,共45分)/ C' i. y: V' \1 ^
下面有3篇短文,每篇短文后有5道题,每道题后面有4个选项。请根据文章的内容从每题所给的4个选项中选择1个最佳答案,涂在答题卡相应的位置上。
' v7 Z# t' L" P: G, G+ [2 d 第一篇
- ~9 N( r' R2 R" k0 s a Exercise Lowers Employers'Health Costs
" P0 w: C: [ U& ~$ u* F0 Q& {7 e Companies can save millions in health-care costs simply by encouraging their employees to exercise a little bit,researchers reported on Friday.
8 C+ ]6 j- R& M& B2 G They said obese(肥胖的)employees had higher health-care costs,but lowered those expenses by exercising just a couple of times a week-without even losing any weight.
& t, f) C/ t6 f2 c- n" W8 \' M3 _ Feifei Wang and colleagues at the University of Michigan studied 23,500 workers at General Motors.
, S+ v2 B* |2 \; k1 v/ d' c% C They estimated that getting the most sedentary(惯于久坐的)obese workers to exercise would have saved about$790,000 a year,or about 1.5 percent of health-care costs for the whole group.
2 m: [$ X: G; |% F& T Company-wide.the potential savings could reach$7 1 million per year,they reported in the Journal of Occupational and Environmental Medicine% v, j4 Z3 L/ a) }8 T$ s0 }& R
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.
0 m1 C6 p6 P6 E2 I* n, T 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 sedentary6 E# ]6 m9 b E. y i+ b) T/ Y
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.
* P# X! ~1 i7 f5 j; M "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.
6 S# Q1 l6 U# j1 H, | 31 How can employees help lower the health-care costs?
* Y5 r* p) M# h7 O' ? K+ b A By taking more rest5 G6 _) C5 V" A. h+ S
B By eating less." H6 c: t# P5 [* F5 r) x3 G
C By exercising a little bit.( T' F. j5 f- G( C; l
D By saving more money.3 q% e. B* d' p5 e" _+ i, [
32 By encouraging its employees to exercise General Motors could save8 f7 H; U% W; l' i0 y
A$790,000 per year.
9 S! |+ n: L3 C0 j) P# k' } B $7.1 million per year.
( e$ w! X4 D8 `! u C$3,000per year
* m; b( ?( R% q' m D $7,300 per year.
; e6 s' F% ~, B: X1 ] 33 How many workers in General Motors were NOT of normal weight?
) ~/ }- [' j& q! E6 K# g6 i A Seventy percent5 |$ v& w% B7 C1 l& M
B Thirty percent.! N1 F/ _7 W9 [) U7 |
C Forty-five percent
+ I6 O5 \7 o u D Twenty-five percent.
, `. x8 P' q8 [8 i, y$ u 34 For which group of the workers were the health-care costs the highest?
4 q; n/ f& ~! z- ^ q, F( |2 L A The employees of normal weight.
0 p, C& w2 o4 }6 y B The overweight employees
- q9 h6 @9 V) B/ i C The obese employees.! |3 @6 J. S' `* `
D The sedentary obese employees.3 z( ]: s) w, F7 e) m1 g
35 How often should the employees exercise to help lower the health-care costs?
. \( `3 w5 j6 I( j- n A At least seven days a week.
/ W d; g1 B8 p B At least twenty minutes a week.9 P$ [" M$ ]) M* @5 F# Q& t! e
C At least twice a week.
8 ]8 X, S- Q$ |/ @
4 O) U" ]# L, S/ s* `/ I, e D At least once a week. |