题型:阅读理解 题类:模拟题 难易度:普通
浙江省绍兴市2019届高三英语适应性考试试卷(含听力音频)
The American Heart Association (AHA) says that too many people are spending far too much time on chairs and couches. "Based on existing evidence, we found that U.S. adults are sedentary for about six to eight hours a day, "said Deborah Rohm Young, chair of AHA panel that wrote the new advisory.
According to the AHA, growing evidence shows that, on its own, exercise isn't enough to cancel out the unhealthy effects of sitting for a long time. "Regardless of how much physical activity someone gets, long sedentary time could negatively influence the health of your heart and blood vessels," Young explained.
The exact mechanisms behind the effect aren't yet clear. “There are many important factors we don't understand about sedentary time yet," Young said. She stressed that, "the types of studies available identify trends but don't prove cause and effect.”
"We don't have information about how much sedentary behavior is bad for health — the best advice at this time is to 'sit less and move more,” she added.
How much more? According to the AHA, people should try to get at least 30 minutes of moderate to vigorous (剧烈的)exercise a day to reach the recommended 150 minutes of moderate exercise or 75 minutes of vigorous exercise a week, That's healthier than trying to cram their weekly exercise into one or two days, according to the statement.
"The real risk simply comes down to the amount we sit, without there being a true medicine or method to control the harmful effects," said Steinbaum, a preventive specialist in heart disease.
Still, society has evolved to encourage sitting, she added.
"Our lives have become focused around activities requiring us to be still—whether it be transportation, our computers, or the television or computer in our leisure time,” Steinbaum said. "Sociologically, instead of being active to be productive or to have enjoyment, our productivity and fun often requires minimal physical activities."
Classis Book Club for Home-schooled Teens
★ Sign up at Librarian's 1st Floor Reference Desk.
★ Free books for first 15 teens who sign up for each title. If you are unable to attend the activity, please return the book to Teen Librarian so she can give the book to another teen.
Classics for Home-schooled Teens
Fridays, 1:00~2:00 pm, Library Room 215
January 23: The Old Man and the Sea by Ernest Hemingway
February 20: Antigone by Sophocles
March 20: Fahrenheit 451 by Ray Bradbury
April 24: Catcher in the Rye by J.D. Salinger
For information contact Teen Librarian Elise Sheppard, elise.i.sheppard@lonestar.edu, 281-290-5248.
5th Annual Prom-dress Give-away
Lone Star College — CYEAIR BRANCH LIBRARY'S PROM CLOSET
Your dress is free for you to keep.
If you Need a Prom Dress
Contact the Youth Service Specialist at your school/ Contact Prom Closet organizers directly:
LSC-CF Teen Librarian Elise Sheppard at 281-290-5248, elise.i.sheppard@lonestar.edu
LSC-CF Friends of the Library President Nancy Flanakin at meaford8510@vahoo.com
Saturday dates to get a dress:
(Other dates by appointment only — contact Elise or Nancy)
Dates | Times | Locations at LSC-CF Branch Library |
March 21 | 1:00—5:00 pm | Library Room 131 |
March 28 | 1:00—5:00 pm | Activity Room of Kid's Comer (Children's Library) |
April 4 | 1:00—5:00 pm | Library Room 131 |
April 11 | Library closed | |
April 25 | 1:00—5:00 pm | Library Room 131 |
Prom Dresses Needed!
Dresses & accessories needed: All dress sizes 0 — 26
Accessories: Shoes, handbags, jewelry, hair pieces, shawls, etc.
Perfect condition: Clean, undamaged, beautiful
Delivery instructions:
Take donations to Lone Star College — CyFair Branch Library Circulation/Customer Service Desk anytime the library is open.
试题篮