单词：hydrochloric acid prod. cells
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a lot of [much or many] We had a lot of rain. carry out [to do; to put into effect] Please carry out the plan. pass a bill [approve] Congress is expected to pass a bill to cut taxes. take steps [to start to do something] The government will take step
VOA慢速英语1500基础单词例句
Well, we take so many things for granted. Employees will wash their hands before making your food. Police and firefighters will come when you call them and doctors who poke and prod you are using clean instruments. Well, hold off on that last one. On
CNN2010年(四)月
Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J
(科普英语)Earth and Sky
Lesson 84 The Busy Bee 第84课 勤劳的蜜蜂 Have you ever seen a hive of bees? 你有没有看到过蜂箱? Some hives are made with glass sides, through which we can see all that the bees are doing. 有些蜂箱的侧面是玻璃的, 你可以透过
英国学生科学读本
Millions of people are alive today because they received the blood given by another person. June 14 is World Blood Donor Day. This is the day on which we can say thank you to those who give blood. Every country raises awareness of the importance of g
世界节假日博览
How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t
知性英语
Seamus Heaney Religion's never mentioned here, of course. You know them by their eyes, and hold your tongue. One side's as bad as the other, never worse. Christ, it's near time that some small leak was sprung In the great dykes the Dutchman made To
英语诗歌
Glucosamine - a glucose or galactose molecule with an amine group attached. see also glucuronic acid. Glucose - a molecule of great importance to life as it provides a ready source of energy for both
医务英语
Broadcast: April 30, 2003 By Nancy Steinbach This is the VOA Special English Health Report. American researchers say drinking tea may help strengthen the body's defense system against infection. Docto
VOA2003（上）-健康资讯
ROME, Oct. 22 (Xinhua) -- Catania twice fought back to stun Fiorentina on home turf, earning a dramatic 2-2 draw at the Stadio Franchi on Saturday. The Viola broke the deadlock with their first real scoring opportunity. Riccardo Montolivo tackled Cat
英语新闻
Acid 酸 Why does the lemon taste sour? 为什么柠檬的味道很酸？ It is because of the acid in a lemon. 因为柠檬里有酸。 Then what is acid? 那么什么是酸？ All substances with a sour taste are kinds of acid. 所有带酸味的物质
与美国小学生一起学英文第12册
AS IT IS 2016-02-13 Work Soothes Pain of Acid Attacks In India A caf in India is hiring women who once stayed in hiding after being attacked with acid. One woman, Dolly Kumari, says she stayed inside for two years after a man threw acid on her. He wa
2016年VOA慢速英语(二)月
Study: Regular Exercise Can Change Our DNA 研究表明经常锻炼可以改变我们的DNA Swedish scientists say they have proven that physical exercise changes not only our health but also our genetic material. Scientists have long known that some
2015年VOA慢速英语(一)月
Obama to Prod Israelis, Palestinians on Peace Efforts Obama last visited Israel in 2008 as a senator and presidential candidate. Now, he returns as a two-term president, but has been unsuccessful in overcoming obstacles to Middle East peace. He will
VOA标准英语2013年(三月)
By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot
VOA常速英语2007年（十一月）
Shale gas 页岩气 Raise the pressure 增加了开采压力 Government dithering keeps frackers above ground 政府仍就是否批准开采页岩气犹豫不决 Inflated concerns 担心通胀 FOR all the debate about it, Britain's shale-gas industry
经济学人科技系列
Most of the nine million residents of the city Hangzhou were actively encouraged to get out of town as security was ramped up. Factories were closed so the visiting world leaders could breathe less polluted air. Car travel in Hangzhou was restricted
实用英语
ROME, Oct. 25 (Xinhua) -- Juventus beat Fiorentina 2-1 despite wasteful finishing at home on Tuesday. Simone Pepe tested Artur Boruc after three minutes, then the Polish goalkeeper palmed a Claudio Marchisio snapshot over the bar. Some horrible defen
英语新闻
MADRID, Sept. 22 (Xinhua) -- Real Betis reached the top of the Spanish La Liga after winning a thrilling game 4-3 at home to Zaragoza on Thursday. Betis only returned to the La Liga this season and the win means they have 12 points from four games af
英语新闻