单词：infrared journal temperature detection point
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The earliest known inhabitants established settlement in Scotland in 6000BC. Scotland is 275 miles long and its broadest point only 152 miles wide. Edinburgh averages 140 days of rain a year, with an average of 1.89 and 2.72 inches in January and Jul
202 Useful Exercises for IELTS
Exercises 1.2 A: write down the numbers you hear in the following sentences. The earliest known inhabitants established settlement in Scotland in 6000BC. Scotland is 275 miles long and its broadest po
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It was a world independent of sunlight, oxygen, or anything else normally associated with life. 那个世界独立于阳光、氧气和其他通常与生命有关的任何东西。 This was a living system based not on photosynthesis but on chemosynt
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A supermassive black hole is quite simply gravity gone mad. An object of such concentrated matter its gravitational pull is insatiable. Nothing can escape it, not even light itself. Anything that gets
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身体健康常用词汇 regular check-up / health checks定期体检 die from / of (cancer)死于癌症 make it to the end of your natural term有幸自然死亡 take risks冒险 earlier detection and treatment更早的诊断和治疗 place strain o
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One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond
2017年Scientific American(二)月
The toucan's long bill has long perplexed biologists. Darwin theorized that it attracted mates. Other suggested uses ranged from fruit peeling to territorial defense. But a report in the July 24th issue of the journal Science offers another explanati
Scientific American(七)月
Cooking Under Pressure When you boil potatoes on the stove top, it can take half an hour to cook them til tender. But, when you boil them in a pressure cooker, instead presto, theyre ready in about five minutes. Whats the difference? What makes press
英语听力文摘 English Digest
The Rolling Boil That Cools Your Food When you think of something boiling, you probably picture a pot on the stove, but theres another kitchen appliance that brings liquid to a boil, not to heat food, but cool it. It sounds crazy, but household refri
英语听力文摘 English Digest
Aqua Technology 水资源监测科技 A new weather-monitoring satellite has been 30 years in the making, and some researchers think it's worth the wait. We'll speak with a scientist about the Aqua satellite -- on today's Earth and Sky. DB: This is Earth a
(科普英语)Earth and Sky
Steven from Katy, Texas, asked me how to write a good blog comment, and I thought it was a great topic I haven't seen covered anywhere. I don't know any bloggers who don't crave comments, but there are many more places than blogs that you can leave c
英语语法 Grammar Girl
Celsius 摄氏度 How cold is it outside? 外边多冷？ There are two different temperature scales. 有两种不同的温标可以衡量。 There are celsius and fahrenheit. 它们是摄氏度和华氏度。 Who invented celsius? 谁发明的摄氏度
与美国小学生一起学英文第8册
From Shakespeares Pen to Our Mouths 从莎士比亚的笔到我们的嘴 Now, time for Words and Their Stories from VOA Learning English. William Shakespeare is probably the most famous English-language writer ever. Historians think Shakespeare was b
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High-Tech Material Cools Buildings, Sends Heat Into Space 高新技术材料给建筑降温,将热量送入太空 Researchers at Stanford University have developed a new material that can move heat out of buildings and into space. The researchers say
2014年VOA慢速英语(十二)月
As Hong Kong struggles to build an environmentally friendly city, one professor is studying ways to help cut carbon emissions and lower electricity usage by covering the city's rooftops with plants. Jim Chi Yung, a geography professor at the Universi
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Related Links Journal of the American Medical Society Progress in the War Against Cancer American Cancer Society Colon cancer study Despite advances in prevention, diagnosis and treatment, cancer remains the second-leading cause of death in the Unite
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By Paul Sisco Washington, DC 17 October 2007 Medical imaging and improved computer technology are significantly making the detection of heart disease easier, safer and better. VOA's Paul Sisco reports. Dr. James Earls is the medical director at Fairf
2007年VOA常速英语（十月）
意大利一名企业家发明了披萨自动贩卖机，顾客每次只需要等待3分钟，便可吃到新鲜出炉的披萨。 当客人付款下单后，这款披萨自动贩卖机便自动混和面粉和水，放到烤炉上压成饼底，然后在
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The 1.5-kilogram drones, made of carbon fiber, are equipped with an infrared cameras, allowing them to see in the dark. They will also be fitted with radar systems and communications antenna to extend monitoring capabilities. But the truly outstandin
2016CRI中国国际广播电台
With a variety of bands, and price tags ranging all the way from $349 $17,000, theres an Apple Watch for everyone. Except, possibly, the heavily tattooed. 面向大众推出的Apple Watch，款式多样，价格从349美元到17000美元不等。现在
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