大气自净作用

Without air, there would be no fire. There would be no cars or trucks, since motors need air in order to work. Without air, there would be no wind or clouds. There would be no weather, as we know it.(

发表于:2018-12-01 / 阅读(362) / 评论(0) 分类 自考英语(一)78讲

Life Is A Test 人生是一场考试 It makes for a lot of stress, and we tend to feel that there will be more hard lessons in life。 这是个让人充满压力的比喻,我们时常感觉人生就是一个不断面临各种课题的过程。 Lif

发表于:2018-12-18 / 阅读(161) / 评论(0) 分类 英语美文

This is the VOA Special English Development Report. The lack of clean drinking water is a major problem worldwide. The World Health Organization says more than one billion people live in areas where renewable water resources are not available. The pr

发表于:2019-01-12 / 阅读(171) / 评论(0) 分类 2010年VOA慢速英语(四)月

This is the VOA Special English Health Report. An outbreak of cholera in Haiti continues to spread sickness and worry. Health officials are worried that the capital could suffer a major outbreak of the disease. So far most cases in Port-au-Prince hav

发表于:2019-01-12 / 阅读(177) / 评论(0) 分类 2010年VOA慢速英语(十一)月

By Paul Sisco Washington, DC 26 July 2006 watch Water Purification report Villagers in Iraq are better off today, thanks in part to NASA engineers from the Marshall Space Center in America's deep south. ------- Concern for Kids is a non-profit organ

发表于:2019-01-12 / 阅读(211) / 评论(0) 分类 2006年VOA标准英语(七月)

Students Invent Water Purification Disc The lab operates like a kitchen. They add several ingredients. Then they mix, weigh, press and bake them. What's created is called a MadiDrop - a ceramic disc infused with silver. When dropped in water, silver

发表于:2019-01-14 / 阅读(176) / 评论(0) 分类 VOA标准英语2013年(六月)

12The Lord said to Moses, 2Say to the Israelites: 'A woman who becomes pregnant and gives birth to a son will be ceremonially unclean for seven days, just as she is unclean during her monthly period. 3On the eighth day the boy is to be circumcised. 4

发表于:2019-01-26 / 阅读(224) / 评论(0) 分类 利未记

According to the latest research, vehicles, coal-burning, airborne dust and industrial production account for 85 to 90-percent of the major airborne pollution sources in most Chinese cities. Vehicles are the biggest polluters in Beijing, Hangzhou, Gu

发表于:2019-02-03 / 阅读(179) / 评论(0) 分类 英语新闻

By Paige Kollock Washington, DC 12 May 2006 watch Sustainability Expo report More than 350 students from 21 colleges and universities were on the National Mall in Washington D.C. this week to compete

发表于:2019-02-05 / 阅读(228) / 评论(0) 分类 2006年VOA标准英语(五月)

Katia: So, Enam, let's talk about environmental problems of our countries. In Bangladesh, what is an environmental problem? Enam: Actually, we have a lot of environmental problems in Bangladesh but mainly I'd say the soil contamination is quite bad,

发表于:2019-02-05 / 阅读(188) / 评论(0) 分类 原版英语对话1000个

WASHINGTON, June 23 (Xinhua) -- Last month was the hottest May since record keeping began in 1880, the U.S. National Oceanic and Atmospheric Administration (NOAA) said Monday. 图片1 The combined average temperature over global land and ocean surfac

发表于:2019-02-06 / 阅读(205) / 评论(0) 分类 英语新闻

New research suggests agriculture has greatly increased the amount of dust blowing off of West Africa, the world's largest source of atmospheric dust, and may have been one factor driving the decrease in rainfall in the region over the past several c

发表于:2019-02-07 / 阅读(271) / 评论(0) 分类 VOA标准英语2010年(七)月

WASHINGTON Folks sweating out the heat wave battering parts of the country may just have to get used to it. 美联社华盛顿 2010年7月8日消息:那些在肆虐美国部分地区的热浪中汗流浃背的人们也许只好逐渐适应这种天气

发表于:2019-02-07 / 阅读(194) / 评论(0) 分类 阅读空间

A diamond worth ?12,000 was shot into space this morning - and whoever finds it when it lands back on earth gets to keep it. 今天早晨一颗价值1万2千英镑的钻石被送入太空,在它落地后,谁能找到它,它就归谁。 A diamon

发表于:2019-02-08 / 阅读(233) / 评论(0) 分类 英语新闻

A alternate bearing 大小年结果 amendment 调理剂 ample 充足的 anatomical 解剖的 aneuploid 非整倍性(的) anion 阴离子 annual 一年生植物,一季生植物 anther 花粉囊,花药 anthocyanin [植]炭疽病 antibiotic 抗生

发表于:2019-02-09 / 阅读(313) / 评论(0) 分类 英文语法词汇

Katia: So, Enam, let's talk about environmental problems of our countries. In Bangladesh, what is an environmental problem? Enam: Actually, we have a lot of environmental problems in Bangladesh but mainly I'd say the soil contamination is quite bad,

发表于:2019-02-16 / 阅读(159) / 评论(0) 分类 英语趣味课堂

Nearly 230,000 people affected by the earthquake in Yunnan have been relocated to safer areas. Longtoushan County is the worst-hit area. Two relocation sites were established there to accommodate victims. Works are now underway to repair dozens of wa

发表于:2019-02-18 / 阅读(197) / 评论(0) 分类 CCTV9英语新闻2014年08月

Science and technology 科学技术 Measurement 测量 Mass effect 质量效应 A better way to clean the world's one true kilogram 清洁世界上真正一千克的更好方法 IN SEVRES, on the outskirts of Paris, sealed beneath a triplet of bell j

发表于:2019-02-24 / 阅读(241) / 评论(0) 分类 经济学人科技系列

一台类似于公交站的城市空气净化装置,近日正式落户于清华大学,其将作为清华校车车站之一,接受北京空气的测试。 请看相关报道: An outdoor air purification system, an oxygen bar designed in the fo

发表于:2019-02-25 / 阅读(219) / 评论(0) 分类 英文语法词汇

Science and technology. 科技。 Geoengineering. 地理工程学。 Implicit promises. 包含着承诺。 A geoengineering experiment has come unstuck. But there will be more. 地理工程试验取得突破。可期待更多。 FOR the past few year

发表于:2019-02-26 / 阅读(231) / 评论(0) 分类 经济学人综合
学英语单词
a louie
acacin
accumulation toxicity
anterior segmental bronchus
asthmatic bronchitis
be a new one on
boulder-studded
Burnett, Frances Hodgson
bus-organization
business-friendliness
butting saw
California beauty
calmers
cgc
chabok
chloropurine
coaxial wire armored cable
commited
cone-way valve
conventionist
craticular
cyclery
Detchino
disc programming system
discobolocysts
drained shear test
electrostatic double layer
electrovital currents
Enugu Ezike
equipment measure against accident
family-support
Fufalin
gateway course
gisele
happen what will
hausa dances (n. nigeria)
hodograph transformation
impose a curfew
interactomics
intrinsically stable superconductor
irrefrenable
Jadelot's signs
Jharsuguda
konuma
kotow
letter of authority
luffas
matrimonial cause
melanocyte stimulating hormone
Mickleton
middle rudder
miseducator
mitochondriogenesis
Nekob
nonbreastfeeding
nonmagnetic recording medium
nosogenesis
not give a hang
O Come, All Ye Faithful
oenanthyl
Oleaceae
oligochaetology
Osmorphore
outbuilds
over-deal
own-brander
pen-gun
perineal glands
Phyllospermae
plain girder
plumb derrick truck
Pnom Penh, Pnompenh
posh oneself up
Pourerere
pseudoschizophrenias
purifier centrifuge
put one's legs under someone's mahogany
quasihemidemisemiquaver
radial rack
reserved material
rod cultivator
Saville
Schäftlarn
Sernovodsk
shadow image
superpositionings
tail s up
takeoff boost
the shiznit
thermographic document copying machine
thio-indigo blue
typhoon harbour
underexcitation protection
undosed
user's data processing capability
valve opening
vice propre
wale slippage
wildlife crossing
written biding
X-ray diffraction
Yangtze Plain