Section A Reading in the Context
Read the passage with 10 missing words or phrases.Learn to guess their meanings from the context and then select one word for each blank from a list of choices given in a word bank following the passage. Each word or phrase should be selected only once.
Choosing an active way to get to work could make a big difference in how much weight creeps on in middle age， a large U.K. study suggests.
Studying tens of thousands of commuters over age 40， researchers found that people who 1 to work weighed more and had a higher percentage of body fat than those who got to work by walking， biking or public transportation.
Those who commuted by bicycle were the leanest of all， but even taking the 2 was linked to lower body weight and body fat， the authors report in The Lancet Diabetes and Endocrinology.
“We know that exercise protects against obesity（肥胖）and chronic（慢性的） 3.However， we all struggle to fit enough of it into our busy lives，” said lead author Ellen Flint of the London School of Hygiene and Tropical Medicine.
“This study 4 that people who manage to build physical activity into their daily commute have 5 lower body weight and healthier body composition than those who commute by car，” Flint told Reuters Health by email.
In the U.S.， about one third of 6are obese（肥胖的）and no more than about 18 percent commute to work by walking or biking， according to the Centers for Disease Control and Prevention. Car travel was the most 7 method of commuting， with 64 percent of men and 61 percent of women reporting they drove for all or part of their commutes.
Men and women who 8 to work by any means other than driving had lower body fat percentage and BMI （体重指数）compared to adults who commuted by car， 9 found.
Even after accounting for a wide range of characteristics and lifestyle information about the participants， active commuting methods were 10 to lower body weight and body fat.
A. train
B. environmental
C. drove
D. researchers
E. introduce
F. diseases
G. common
H. linked
I. groups
J. commuted
K. adults
L. percent
M. shows
N. significantly
O. requires