单词：hestwater
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This is the VOA Special English Development Report. Indonesian women sell their harvest in a traditional floating market Before refrigerators were invented, the next best thing was an ice box. But another way to keep food fresh is to use an evaporat
VOA慢速英语2009年（十一）月
Commercial fishing ban doesn't stop New Orleans from throwing oyster festival David Weinberg | New Orleans, Louisiana 15 June 2010 Oyster fisherman Tracy Collins shucks an oyster on Caminada Bay in Louisiana. It is a nearly cloudless early June morni
VOA标准英语2010年(六)月
Ivory Coast Refugees Settle In for Long Stay in Liberia 大量科特迪瓦难民仍未回国 Ivorian refugees who backed former president Laurent Gbagbo say the new government in Abidjan has not made it safe enough for them to return home. Amnesty In
VOA标准英语2011年(八月)
18After a long time, in the third year, the word of the Lord came to Elijah: Go and present yourself to Ahab, and I will send rain on the land. 2So Elijah went to present himself to Ahab. Now the famine was severe in Samaria, 3and Ahab had summoned
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13By the word of the Lord a man of God came from Judah to Bethel, as Jeroboam was standing by the altar to make an offering. 2He cried out against the altar by the word of the Lord : O altar, altar! This is what the Lord says: 'A son named Josiah wil
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Why is it that you cant put down hydrogen gas? If you had a big balloon full of hydrogen gas, like the first gondola balloons pioneered in 18th-century France, youd find that it rises in the air quite dramatically. You know that a piece of wood will
英语听力文摘 English Digest
BEIJING, July 21 (Xinhua) -- The heaviest rain in 61 years that lashed Beijing Saturday have left at least four people dead and six others injured, local authorities said. Two people were killed and six others injured as strong winds toppled rooftops
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重点词汇(填空) mystery novel,float,corpse, initially,putrefaction,digestive tips: 怎样阅读才是有质量的阅读了？ 边看边填空吧，重点词汇可是小编为大家认真筛选的,阅读完后，点击【查看答案】和 【查看
英语听力文摘 English Digest
Boiling Water Under Boiling Clouds You may be surprised to hear that its actually easier to boil water on stormy days than it is when the weather is clear and sunny. Can you guess why? The reason is that the boiling point of water changes slightly in
英语听力文摘 English Digest
Don: Hey, Yael, Have you heard? We've discovered two new oceans? Yael: Where? D: On Mars. Well, they aren't there any longer, but they were there a few billion years ago. Y: I thought scientists weren't sure if Mars had oceans or not. D: They weren't
英语听力文摘 English Digest
Y: I noticed that fish have holes that look like nostrils, does that mean they can smell? D: Smell, or olfaction, as scientists call it, is an important sense for many fish. Those little holes that look like nostrils are called nares. Nares dont lead
英语听力文摘 English Digest
D: OK, Yael, you want to build an aquatic robot,and you're trying to figure out the most efficient way to move it through water, what do you do? Y: I am guessing the answer isn't to build a robot using a lot of root-force to move forward? D: Anyone w
英语听力文摘 English Digest
The Denatured Egg White 煮鸡蛋还有那么多学问哪?在煮鸡蛋过程，鸡蛋会发生哪些变化呢? 蛋白质变性（protein denaturation）是指蛋白质在某些物理和化学因素作用下其特定的空间构象被改变，从而导致
英语听力文摘 English Digest
Acanthostega 这种生物已经演化出前后肢，但每肢都有８趾。这种生物是从鱼类进化到两栖类的过渡产物。而且，它具有更多的鱼类特征，如有鳃、鳍和只能在水中起作用的感官。伦敦自然历史博
英语听力文摘 English Digest
Floating Tin Foil 锡纸为一种涂上或贴以像银的膜状金属纸，多为银白色，实际上是铝箔。铝箔纸（Aluminium foil），亦作铝箔，在香港称之为锡纸，是一种用压平了的金属铝制造的工具，主要用于厨
英语听力文摘 English Digest
How Clouds Float 形成云彩的暖湿上升气流使得云彩能够漂浮在空中。一片普通云彩的含水量约为200只成年公象的体重之和。但云彩中的水分被分解为细微的水滴和冰晶，因而不会倾盆而下。即使是
英语听力文摘 English Digest
Airplane Contrails Have you ever seen a perfectly cloudless sky? Cloudlessthat isexcept for two or three long white lines smeared across the perfect blue sky by airplanes like smudges on a pane of glass. Why do airplanes sometimes leave contrails beh
英语听力文摘 English Digest
What Is Fire? 火是物质燃烧过程中散发出光和热的现象，是能量释放的一种方式。火焰分为焰心、中焰和外焰，温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存，缺一
英语听力文摘 English Digest
Summer Breeze, Makes Me Feel Fine 风是大家最熟悉的自然现象，要了解风的形成必须了解包围着地球的大气的运动。大气的流动也像水流一样是从压力高处往压力低处流。太阳能正是形成大气压差的原
英语听力文摘 English Digest
Acid Water Yal: What are you doing outside, Don? It's about to rain. Don: I'm setting out bottles. Y: I can see that. But why? D: For my new business venture. Bottled rainwater! Y: As in living plastic bottles out in the rain and then selling them as
英语听力文摘 English Digest