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
action-research
adversatively
Afanasyevka
Allan cell
alt texts
apportion
as big as a barn door
assizer
basing point
beam store
beatnikism
beet harvester
bills retired
branglings
broadside array
bursae intratendinea olecrani
card format
card-board flange
carpoptosia
categorifies
ceverett
Chinese speech information processing
coastal tug
cohune(palm)
Collibacteriemia
constant frequency motor
constant pressure soft tissue expansion
conwy b.
Corronium
cost of presservation
cross connecting block
crove
cyclone path
dam body
DAMF
dental splint
disinfested
double-shrouded impeller
driving key
e-town
empty-nest period
ethyl myristate
flowret
flying-scaffold
forward error correcting
garins
general phonetics
haberdashed
handclaps
hollow gravity dam
international communications organization
isochorismate
Jasminum mesnyi
jerkasses
media access
miner pan
moazzam
model out of
multi-core magnetic memory
musicologists
muttsy
nagativistic
nanopatterning
nineteen medicaments of mutual antagonism
nogs
Oligostachyum gracilipes
open lap winding
peter
plant molecular taxonomy
Populus tremula
prohibited usage
propathy
provisional account
publics'
rated no-load output voltage
read-only rights
recombination of gaseous ions
rectangular layout of streets
rod coupling
rough atomic weight
rough-voiced
sac-a-lait
Savaii
shed one's blood for
Silliman, Benjamin
step-by-step
tempt fate
there-like
thermoregulated phase-separable catalysis
tintmeter
title-domain-name
trial skill
twin-six engine
two-way valve
unit speed
unsupported back
valve-in-head engine
ventilating lung qi for dissipating phlegm
vitellase
West Germanic languages
zixiu
Zostera marina