巯基乙胺类

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(133) / 评论(0) 分类 2014年VOA慢速英语(五)月

Superhero Thwarts Evil Nazi Plot in 'Captain America: The First Avenger' Acomic book super hero whose exploits began in the 1940's is back as one of this year's big action movies. Here's a look at Captain America: The First Avenger. General Patton ha

发表于:2018-12-16 / 阅读(64) / 评论(0) 分类 VOA标准英语2011年(八月)

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(90) / 评论(0) 分类 VOA双语新闻 2014年1月

The 2.5 percent pre-determined interest rates attached to life insurance products here in China have been scrapped. The move is the latest effort by central government to liberalize the country's interest rates. The People's Bank of China has already

发表于:2018-12-19 / 阅读(64) / 评论(0) 分类 世界各地新闻集锦

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 cap [ kAp ] It's better to put the cap

发表于:2018-12-30 / 阅读(105) / 评论(0) 分类 每日攻克5词

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 cap [ kAp ] Clouds capped the woods. v

发表于:2018-12-30 / 阅读(254) / 评论(0) 分类 每日攻克5词

After they left the ship, the children decided that they needed to call Cap Lambert the very first thing. Can I just sit some place and wait? Benny asked. My legs feel funny when I walk. Mine do, too, Jessie said. Those are our sea legs. Well get our

发表于:2018-12-31 / 阅读(70) / 评论(0) 分类 20 The Haunted Cabin Mystery

Scientists in Australia are developing a thinking cap that could unlock our hidden genius, by switching on and off certain sections of the brain. Researchers at the University of Sydney think their experiments show that we all have hidden creative t

发表于:2019-01-13 / 阅读(137) / 评论(0) 分类 VOA标准英语2008年(十月)

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(87) / 评论(0) 分类 VOA标准英语2014年(一月)

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(65) / 评论(0) 分类 白领英语晨读

The speaker was addressing a roomful of teachers. He said, 'Thinking' and 'thinking critically' aren't the same. For example, if you're thinking about what day it is, that's not thinking critically. He instantly heard some murmuring. A teacher said,

发表于:2019-01-22 / 阅读(87) / 评论(0) 分类 英文短篇故事(纽约)

The tutor handed the black marker to his student. She was learning English. She constantly spoke to him in Russian, even though he hardly knew net from da. She wrote the two contractions for he is not on the whiteboard. He said, Very good. She smiled

发表于:2019-01-22 / 阅读(86) / 评论(0) 分类 英文短篇故事(纽约)

Tim Johnston Separatist rebels in the Indonesian province of Aceh have released at least 138 captives to the Red Cross. The releases come shortly after the government scrapped martial law in Aceh, whi

发表于:2019-01-31 / 阅读(88) / 评论(0) 分类 VOA2004(上)--国际时事

Idiom: Put on your thinking cap ( think hard ) Hit the book: Be accused of Malnourished Tabloid Taunt Sentiment Spark outrage Skeleton Catwalk Victoria Beckham has been accused of being 'malnourished' and has admitted to an eating disorder in the pas

发表于:2019-02-16 / 阅读(107) / 评论(0) 分类 趣味青春英语

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(92) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(107) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(98) / 评论(0) 分类 万物简史

LONDON, Nov. 14 (Xinhua) -- Liverpool's teenager winger Raheem Sterling is set to make his debut for England while his club teammate and captain Steven Gerrard is expected to earn the 100th cap in England's friendly against Sweden in Stockholm on Wed

发表于:2019-02-18 / 阅读(119) / 评论(0) 分类 英语新闻

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(119) / 评论(0) 分类 TED演讲教育篇

Now, the VOA Learning English program Words and Their Stories. Our world is home to thousands of different kinds of birds. No two bird species are the same. Each one has its own unique qualities like its feathers! Feathers keep a bird warm and dry. F

发表于:2019-03-09 / 阅读(206) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
a george
Acronychia pedunculata
act of self-help
amado
asklent
athletic type
attractees
avenues
basal pinacoid
bernard montgomery
Betula pubescens
busbar with detachable collar
cadenas
calcium bichromate
California dewberry
cerinum
ceruloplasmins
Challapata
child cry
chloromatous leukemia
crack sealer
debranchers
DEPOLYMN
desqview
disamenities of economic growth
Disasteridae
dramatisations
ebonyi
Exploitation-forest
fault-controlled
ferric trichloride
field tent
flange machinery
gold-pans
heat-stable plant
high-LET
iatrogenic infection
ice-skated
intermittent manufacture
ion exchange cellulose paper
irreparable
isophane insulin suspension (nph)
leaky butter
lengthwise piling
lever locking
levotransposition
lobsteins
loose tube cable attenuation
low-back
lowerings
lyocystidia
Lyuk
macroinferences
mean-root-square error
mesosa kuntzeni
mistion
monarda fistulosas
mooring pattern
multiflue chimney
natural language interface
offset error
original horizontal stratification
oyvind
pea-soup
Petit-Bassam
polygynian
polypedon
polypifers
provinour
put someone to the wall
pyronaridine
rated VA
re-appraisal
retinotopic
rock-filled cribbing
S-expressions
salmeton
sea worm
short pulse laser
sidas
slow flag
sodium phosphate monobasic
Sorbus multijuga
special survey of inert gas system
spiny dogfish
steam blanket
stormbeaten
subaggregate
subcontractable
tail-up on a rope
Temoptol
threatning
thuliums
to a proverb
truncated decision function
ud (oud)
ultrasonic spectroscope
urgent priority
vena renaliss
wedge shaped clip
zastavas
zero-gravity switch