时间:2019-01-02 作者:英语课 分类:VOA2003(下)-环境与健康


英语课

By Lawan Davis
Broadcast: September 3, 2003
This is Bob Doughty 1 with the VOA Special English Health Report.
Intense physical exercise is not the only way to better health. Studies show that walking several times a week can lower the risk of many diseases. They include heart disease, stroke, 1)diabetes 2, bone loss, 2)arthritis 3 and depression. Walking also can help you lose weight.
Fast walking is good for the heart. It lowers the blood pressure. It raises the amount of good cholesterol 4 in the blood. Researchers say walking can sharply 5 reduce the risk of suffering a heart attack.
Studies have also shown that walking for thirty minutes a day can delay and possibly prevent the development of type two diabetes. People who are overweight have an especially high risk to develop this disease.
Walking strengthens the muscles and builds up the bones that they are attached to. Studies show that women who walked and took calcium 6 decreased their risk of developing 3)osteoporosis, or thinning of the bones. Walking can also help ease the pain of arthritis in areas where bones are joined. This is because walking strengthens the muscles around the bones.
Walking several times a week is a good way to control weight and lose extra body fat. Studies show it can also help ease the sad feelings of depression.
Experts say walking is one of the safest ways to exercise. There is a low risk of injuries. So it is good for people who are starting an exercise program for the first time and for older people.
A walking program is easy to start. You should wear loose clothes and good shoes. There are shoes that are designed especially for lots of walking.
Stretching is an important part of any exercise program. It helps prevent injury and muscle pain. You should stretch the muscles in your legs, arms and back before and after you walk.
How fast should you walk? For the best effect, doctors say you should walk fast enough to cause you to breathe hard. Yet you should still be able to talk. Let your arms move freely while you walk.
There are no rules to starting a walking program. You might walk short distances. Or you might walk up hills to strengthen your leg muscles. Health experts say you can gain the most from a walking program if you walk at about five kilometers an hour for thirty minutes a day. You should do this about five times a week.
This VOA Special English Health Report was written by Lawan Davis. This is Bob Doughty.
注释:
1) diabetes [7daiE5bi:ti:z, -ti:s] n.(医)糖尿病
2) arthritis [B:5Wraitis] n.关节炎
3) osteoporosis [7CstiEupC:5rEusis] n.骨质疏松症


adj.勇猛的,坚强的
  • Most of successful men have the characteristics of contumacy and doughty.绝大多数成功人士都有共同的特质:脾气倔强,性格刚强。
  • The doughty old man battled his illness with fierce determination.坚强的老人用巨大毅力与疾病作斗争。
n.糖尿病
  • In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者,医生告诫他们不要吃糖。
  • Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。
n.关节炎
  • Rheumatoid arthritis has also been linked with the virus.风湿性关节炎也与这种病毒有关。
  • He spent three months in the hospital with acute rheumatic arthritis.他患急性风湿性关节炎,在医院住了三个月。
n.(U)胆固醇
  • There is cholesterol in the cell of body.人体细胞里有胆固醇。
  • They are determining the serum-protein and cholesterol levels.他们正在测定血清蛋白和胆固醇的浓度。
adj.锐利地,急速;adv.严厉地,鲜明地
  • The plane dived sharply and rose again.飞机猛然俯冲而后又拉了起来。
  • Demand for personal computers has risen sharply.对个人电脑的需求急剧增长。
n.钙(化学符号Ca)
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
学英语单词
a self-fulfilling prophecy
acidulates
actinide oxyfluoride
admit the corn
air-time
airborne weather reconnaissance system
amphigamy
aquatic leaf
Arundelian
asids
bank check account
beaujon
bound-atom cross-section
brandlet
burkhead
catalyzing
CBSF
chasovrite (glinite)
Chlororphyll
cloudwash
coaxial connector
cow with a calf at foot
Creole State
cut-off attenuater
cyberconference
daltons alloy
Desulo
direct acting valve
dynamic stability lever
energetic plasma
european single market
existing licence
flicker frequency noise
fractile graphical analysis
frame-drien dialog system
growth-promoting media
gut-shoot
harbour time
harmonic subflow
Harmonized Description Coding System
intraventricular foreign body
job control I/O buffering
k-means
leucoma
lock-free system
Loimijoki
Lowndes County
LR(0)grammar
macintosh binary resource file
malerde
Marsdenia xuanenensis
microcystometer
Myōkō-kōgen
Namier, Sir Lewis Bernstein
neve frozen soil
nortropane
operational control
orkyn
oslo convention
Parasymphyseal
partial veils
partnership stock
physical hygrometer
planar computer
postmastectomy
Prairie du Chien
pseudonormal
push-pull oscillator
put sb on
quick-acting door
rami sympathicus ad ganglion submandibulare
re-reversal
redray
rotamers
rural commerce
sad sack
selection matrix
Seram, Pulau
sholoms
single-channel heated stylus recorder
slob
space-ages
stick sulfur
stool tank
stump fence
substantiveness
sunbaths
Super System Info
surface of bone
symmetric alternating quantity
symmetrical antenna
tail-wheel bumper
Tectona
the architect
Thompson Peninsula
tranquillised
twist-release
unsnobbish
urethrae
w/m
weasel-faced
zarcone