The U.S. state of Texas is reeling from Hurricane Harvey. Late last week, the storm strengthened much more and much faster than meteorologists originally expected. And it made landfall Friday night just north of the city of Corpus Christi. Harvey was

发表于:2018-12-02 / 阅读(81) / 评论(0) 分类 CNN美国有线新闻2017年8月

64 印第安纳沙丘的成因分析 EXPLORATIONS - September 5, 2001: Indiana DunesBy Jerilyn Watson VOICE ONE: This is Shirley Griffith. VOICE TWO: And this is Steve Ember with the VOA Special Engli

发表于:2018-12-09 / 阅读(55) / 评论(0) 分类 自然探索

旱灾的成因与影响 Its signs are subtle and slow: the earth dries; water levels fall; the rains do not come; and the land is gripped by drought. At its most basic, a drought occurs when more water is used than isreplenished. It is a balance bet

发表于:2018-12-26 / 阅读(94) / 评论(0) 分类 自然百科2016年

Its signs are subtle and slow: the earth dries; water levels fall; the rains do not come; and the land is gripped by drought. At its most basic, a drought occurs when more water is used than is replenished. It is a balance between supply and demand,

发表于:2018-12-30 / 阅读(48) / 评论(0) 分类 国家地理2008年

What Is The GABA Chemical? What would it be like if wearing a soft cotton t-shirt felt like your skin was being scrubbed with a Brillo pad? For people who suffer from a condition called central pain, such pain is all too familiar. Central Pain on thi

发表于:2018-12-31 / 阅读(69) / 评论(0) 分类 英语听力文摘 English Digest

Most people often dream at night. When they wake in the morning they say to themselves, What a strange dream I had! I wonder what made me dream that. Sometimes dreams are frightening. Sometimes, in dreams, wishes come true. At other times we are trou

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 英语阅读理解

For those of us lucky enough to always have enough food and water, it may be hard to imagine living through a drought. A drought occurs for a variety of reasons, usually including a lack of rainfall and warm temperatures.Soil moisture severely dwindl

发表于:2019-01-26 / 阅读(82) / 评论(0) 分类 英语听力文摘 English Digest

Heavy rains have hit Shanghai as well, with some parts of the city being inundated on Wednesday. Authorities are trying to drain the street of the water ahead of the evening traffic peak. The overnight torrential rain has been working around the cloc

发表于:2019-02-04 / 阅读(59) / 评论(0) 分类 cctv9英语新闻2015年

BEIJING, April 1 (Xinhua) -- Chinese cities have been urged to step up the construction of drains to avoid waterlogging during the flood season. Local authorities should work to eliminate hidden troubles and take emergency measures to avoid casualtie

发表于:2019-02-18 / 阅读(62) / 评论(0) 分类 英语新闻