Call them twisters or tornadoes. They are nature's most violent storms with swirling winds that can top 300 miles per hour. About 800 twisters sweep through the US every year, more than anywhere else in the world. The hardest-hit area is a swath of

发表于:2018-12-30 / 阅读(56) / 评论(0) 分类 国家地理2008年

Call them twisters or tornadoes. They're nature's most violent storms with swirling winds that can top 300 miles per hour. About 800 twisters sweep through the US every year, more than anywhere else in the world. The hardest-hit area is a swath of th

发表于:2018-12-30 / 阅读(58) / 评论(0) 分类 国家地理2007年

SCIENCE IN THE NEWS - Weather: Tornado Science, in a Land With Plenty of ExperienceBy Brianna Blake Broadcast: Tuesday, May 23, 2006 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special Engli

发表于:2019-01-02 / 阅读(71) / 评论(0) 分类 2006年慢速英语(五)月

SCIENCE IN THE NEWS - Understanding How Tornadoes Work KATHERINE COLE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Katherine Cole. BOB DOUGHTY: And I'm Bob Doughty. This week, we will tell about the science of tornadoes. Tornadoes have be

发表于:2019-01-12 / 阅读(85) / 评论(0) 分类 2011年VOA慢速英语(四)月

By Paul Sisco Washington, DC 19 April 2006 watch Severe Weather report Several weeks of unusual and severe weather in the U.S. are not being specifically linked to global warming but they are causing

发表于:2019-01-13 / 阅读(107) / 评论(0) 分类 2006年VOA标准英语(四月)

Call them twisters or tornadoes. They are nature's most violent storms with swirling winds that can top 300 miles per hour. About 800 twisters sweep through the US every year, more than anywhere else in the world. The hardest-hit area is a swath of t

发表于:2019-01-22 / 阅读(51) / 评论(0) 分类 自然百科2008年

ENVIRONMENT REPORT – June 7, 2002: Tornadoes By Jill Moss This is the VOA Special English Environment Report. Every year in the United States people watch for dangerous windstorms called tornadoes.

发表于:2019-01-30 / 阅读(92) / 评论(0) 分类 健康与环境

By Greg Flakus Chicago 06 February 2008 In a display of natural fury unusual for this time of year, tornadoes and violent thunderstorms have killed at least 50 people in five south-central states. VOA's Greg Flakus reports. Rescue crews are hard at w

发表于:2019-02-06 / 阅读(55) / 评论(0) 分类 VOA常速英语2008年(二月)

By Zulima Palacio Suffolk, Virginia 05 May 2008 On28 April 2008, several powerful tornadoes hit the southeast region of the state of Virginia, injuring some 200 people and causing millions of dollars in damages. VOA producer Zulima Palacio traveled t

发表于:2019-02-07 / 阅读(53) / 评论(0) 分类 VOA标准英语2008年(五月)

图片1 图片2 图片3 图片4 图片5

发表于:2019-02-18 / 阅读(98) / 评论(0) 分类 加州英语分级G4

图片1 图片2

发表于:2019-02-19 / 阅读(106) / 评论(0) 分类 加州英语分级G4

图片1 图片2

发表于:2019-02-19 / 阅读(107) / 评论(0) 分类 加州英语分级G4

图片1 图片2

发表于:2019-02-19 / 阅读(108) / 评论(0) 分类 加州英语分级G4

图片1 图片2

发表于:2019-02-19 / 阅读(109) / 评论(0) 分类 加州英语分级G4

图片1 图片2

发表于:2019-02-19 / 阅读(101) / 评论(0) 分类 加州英语分级G4

图片1 图片2

发表于:2019-02-19 / 阅读(95) / 评论(0) 分类 加州英语分级G4

图片1 图片2

发表于:2019-02-19 / 阅读(99) / 评论(0) 分类 加州英语分级G4

图片1 图片2

发表于:2019-02-19 / 阅读(94) / 评论(0) 分类 加州英语分级G4

图片1 图片2 图片3

发表于:2019-02-19 / 阅读(99) / 评论(0) 分类 加州英语分级G4

1.指某个或者是某些特定的人或事物,或者重复上文提过的人或事物; 2.用于指世界上独一无二的自然现象,或是放在表示方位等的名词前; 3.定冠词也可以同于单数名词前,表示某一类人或事

发表于:2019-02-26 / 阅读(66) / 评论(0) 分类 英语新闻