職稱英語培訓(xùn) 職稱英語培訓(xùn) 發(fā)布時(shí)間： 2016年03月17日
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Walking to Exercise the Brain
Do you think sitting and studying all the time will improve your grades? Think again. Getting some exercise may help, too.
New research with older people suggests that taking regular walks helps them pay attention better than if they didn't exercise.
Previous research had shown that mice learn, remember, and pay attention better after a few weeks of working out on a running wheel. Mice that exercise have greater blood flow to the brain than those who don't. Their brain cells also make more connections.
Neuroscientists from the University at Urbana-Champaign wanted to find out if the same thing is true for people. First, they measured the physical fitness of 41 adults, ages 58 to 77, after each per-son walked 1 mile. Then, participants looked at arrows on a computer screen and had to use computer keys to show which way one particular arrow was pointing.
Adults who were physically fit were faster at the arrow task, and their answers were just as ac- curate as their less-fit peers, the researchers found. The fitter participants also had more blood flow to a part of their brain responsible for paying attention and making decisions.
In a second study, 15 elderly people who completed a 6-month aerobic-training course were faster at attention tasks compared with 14 seniors who just did stretching and toning exercises for the same amount of time.
So, even going for a walk every 2 or 3 days for just 10 to 45 minutes can help. That should be good news for your grandparents.
The effects of exercising on the brains of younger people haven't been studied yet. Still, it can't hurt to take occasional study breaks and go for a walk or run around with your friends. You might even do better in school.
Whatever you do, though, don't try to read and walk at the same time. You could end up hurting yourself!
1、Walking regularly helps elderly people ______.
A、lose weight
B、become happier
C、concentrate better
D、look younger
【正確答案】 C
【答案解析】 題目是老年人經(jīng)常運(yùn)動(dòng)有助于以下哪項(xiàng)。原文是第二段"對(duì)老年人的新研究顯示經(jīng)常運(yùn)動(dòng)能讓老年人更集中精力。選項(xiàng)A"減肥";選項(xiàng)B"更愉快";選項(xiàng)C"精力更集中";選項(xiàng)D"顯得年輕"。因此只能選C。
2、After taking exercise for a few weeks, the mice were found to have _____.
A、higher blood pressure
B、faster heartbeat
C、more blood flow to the brain
D、better appearance
【正確答案】 C
【答案解析】 原文是第三段"以前的研究證明老鼠在輪子上奔跑數(shù)周后它們的學(xué)習(xí)、記憶和集中程度都有所提高。運(yùn)動(dòng)的老鼠大腦中的血液流量大于不運(yùn)動(dòng)的，而它們腦細(xì)胞的聯(lián)系也更頻繁。"選項(xiàng)A"更高的血壓";選項(xiàng)B"更快的心跳";選項(xiàng)C"有更多血液流經(jīng)大腦";選項(xiàng)D"更好的外表"。因此只能選C。
3、The first study on 41 elderly people found ______.
A、the less-fit participants did arrow tasks faster
B、the fitter participants did arrow tasks faster
C、the less-fit participants gave more accurate answers
D、the fitter participants gave more accurate answers
【正確答案】 B
【答案解析】 原文是第五段"研究員發(fā)現(xiàn)身體健康的成年人完成箭頭測(cè)試的速度更快，他們的答案和身體狀況不佳的參加者一樣準(zhǔn)確。"選項(xiàng)A"身體狀況不佳的參賽者完成箭頭測(cè)試更快";選項(xiàng)B"身體健康的參賽者完成箭頭測(cè)試的速度更快";選項(xiàng)C"身體狀況不佳的參賽者在箭頭測(cè)試中答案更準(zhǔn)確";選項(xiàng)D"身體健康的參賽者在箭頭測(cè)試中答案更準(zhǔn)確"。因此只能選B。
4、It can be good for health when one takes a walk every 2 or 3 days for at least ______.
A、3 minutes
B、45 minutes
C、30 minutes
D、10 minutes
【正確答案】 D
【答案解析】 原文是第七段"因此每?jī)傻饺靸H僅出去散步10到45分鐘都會(huì)對(duì)健康有益。"因此只能選D。
5、It is suggested in the last paragraph that people should ______.
A、run around once a week
B、not read and walk at the same time
C、go for a walk every day
D、not hurt their friends while exercising
【正確答案】 B
【答案解析】 原文是最后一段"不管你怎么做都不要一邊走路一邊讀書，你有可能傷到自己的哦"。選項(xiàng)A"一周跑一次步";選項(xiàng)B"不要同時(shí)走路和讀書"與原文內(nèi)容一致;選項(xiàng)C"每天散步";選項(xiàng)D"運(yùn)動(dòng)時(shí)不要傷著朋友"。因此答案選B"。
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