B
Running is becoming popular these days. Many of us run for health. Doctors say many health problems come from these bad habits: eating and drinking too much, smoking, and not taking enough exercise. Doctors tell us, "Eat and drink less. Don't smoke, and exercise more".
Running is a good form of exercise because it helps build a strong heart. It also helps most people lose weight. A 68-year-old woman runs three times a week. "I love to eat, and I'm fat," she says. She runs to lose weight.
Running is good for health in other ways, too. Many runners say running keeps colds and other small health problems away. "Running is my doctor," says one man.
Running can also help people to relax. So today men and women of all ages enjoy running.
()10. Why do many people enjoy running?
A. They want to keep healthy.
B. They want to run fast.
C. They want to eat a lot.
D. They want to make money.
()11. The underlined word "weight" probably means "" in Chinese.
A.疾病 B.速度 C.体重 D.耐力
()12. What does the third paragraph show us?
A. Running helps people lose weight.
B. Running helps people have few health problems.
C. Running helps people have strong hearts.
D. Running helps people make more friends.
()13. What does the passage mainly tell us?
A. Running is becoming popular.
B. Running is the best way to exercise.
C. Running is good for health.
D. Running can help people live longer.

10.A 11.C 12.B 13.C