时间:2018-12-29 作者:英语课 分类:英语课程学习计划和讲义


英语课

World Heart Day was created by the World Heart Federation 1. Its aim is to inform people around the world that heart disease and stroke are the world’s leading causes of death. Over 17 million people die each year from these. Another main aim is to educate the world population that 80 per cent of deaths from heart disease are premature 2. Most people who suffer heart attacks and strokes could live longer if they changed their lifestyle. Fewer people would die from heart complaints if they were more aware of the main risks. These include smoking, eating an unhealthy diet and not exercising. Experts say heart disease will lose China’s economy around $558 billion between 2005 and 2015. Other countries will also lose billions.


The heart is a strong, muscular organ. Its job is to pump blood around our body. The heart contracts and expands in a non-stop rhythm to push our blood around a system of arteries 3 and veins 4. The average human heart works at 72 beats per minute. In an average lifetime, it will beat approximately 2.5 billion times. The average weight of a human heart is around 300g. It is the size of a clenched 5 fist. Advances in heart surgery means people can have heart replacement 6 operations. In less serious cases, doctors can fit the heart with plastic valves and pumps to help it beat. World Heart Day is a good time for all of us to think more about this vital organ and live a life that keeps our heart strong and healthy.



n.同盟,联邦,联合,联盟,联合会
  • It is a federation of 10 regional unions.它是由十个地方工会结合成的联合会。
  • Mr.Putin was inaugurated as the President of the Russian Federation.普京正式就任俄罗斯联邦总统。
adj.比预期时间早的;不成熟的,仓促的
  • It is yet premature to predict the possible outcome of the dialogue.预言这次对话可能有什么结果为时尚早。
  • The premature baby is doing well.那个早产的婴儿很健康。
n.动脉( artery的名词复数 );干线,要道
  • Even grafting new blood vessels in place of the diseased coronary arteries has been tried. 甚至移植新血管代替不健康的冠状动脉的方法都已经试过。 来自《简明英汉词典》
  • This is the place where the three main arteries of West London traffic met. 这就是伦敦西部三条主要交通干线的交汇处。 来自《简明英汉词典》
n.纹理;矿脉( vein的名词复数 );静脉;叶脉;纹理
  • The blood flows from the capillaries back into the veins. 血从毛细血管流回静脉。 来自《简明英汉词典》
  • I felt a pleasant glow in all my veins from the wine. 喝过酒后我浑身的血都热烘烘的,感到很舒服。 来自《简明英汉词典》
v.紧握,抓紧,咬紧( clench的过去式和过去分词 )
  • He clenched his fists in anger. 他愤怒地攥紧了拳头。
  • She clenched her hands in her lap to hide their trembling. 她攥紧双手放在腿上,以掩饰其颤抖。 来自《简明英汉词典》
n.取代,替换,交换;替代品,代用品
  • We are hard put to find a replacement for our assistant.我们很难找到一个人来代替我们的助手。
  • They put all the students through the replacement examination.他们让所有的学生参加分班考试。
学英语单词
access security
ambient-like
application for shipment
Big Beaver House
blood vessels of endometrium
broad-ga(u)ge
chemoattracted
chop up
cinema camera
clapsticks
cloine
coccygeal vertebrae
cold stocker
commission base
conver-sation
corcus
curia
damkinas
deferments
demand stability
describal
detector cell
diagonal-sum rule
disk friction clutch
do experiment
double nebula
double open end wrench black finished
drying sheet
ecological subsystem
el geteina (al qitena)
electromagnetic accelerometer
Eritrichium thymifolium
euthalia irrubescens fulguralis
facients
false ribs
fault infeed
fiber coupler
finlandisation
flood prediction
fluoresceine diacetate
fluorescence radiation
foramen greater palatine
forth rivers
fosterer
fritchey
genetic surgery
genus Coptis
genus malvas
grasped the nettle
Gīreh, Kūh-e
howlarious
humin
Hydrogen upgrading process
hyperdontia
incrustans
inner strake
Izu-shoto
keepa
kromer
laplacian integral
leer pan
liver wind
mesoecosystem
mesosulcus
Montfermeil
Nayoro-gawa
niggergrams
not attempted
Nothnagel's sign
open commitment
ornamental lighting
overnormal wind
parts and components manual
peace time
place of acceptance or receipt
PTR record
Ranacid
rectangular-to-polar graphical solution of array
relative jump instruction
reprocessing loss
retail store system
Rheum hotaoense
rhythm band
rosin grease
sectional splint
shift circuit
shittest
sleep-apnea
social standing
sophias
square knots
steam generator tube rupture
sublettor
summary justice
telecommunications technicians certificates
test sampling
total carbon dioxide capacity
total half life
traveling-wave
vegetable and fruit
vena iliaca
zoroastrianisms