03 警惕杀虫剂的危害 DATE=2-20-01 TITLE=AGRICULTURE REPORT - (1)Pesticide Warning BYLINE=George Grow (Start at 1'00

发表于:2018-12-07 / 阅读(39) / 评论(0) 分类 科技之光

VOICE ONE: This is SCIENCE IN THE NEWS, a program in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Shirley Griffith. This week, we will tell about a study involving monkeys and a gene from jellyfish. We will tell about an agreement to ban

发表于:2018-12-15 / 阅读(23) / 评论(0) 分类 VOA慢速英语2009年(六)月

Agriculture Report - New Findings About Loss of Bees This is the VOA Special English Agriculture Report. Bees add an estimated eighteen billion dollars a year to the value of American crops. They pollinate flowers that become fruits, nuts and vegetab

发表于:2018-12-16 / 阅读(39) / 评论(0) 分类 2012年VOA慢速英语(四)月

Pre-Listening Vocabulary caffeine: a drug found in some plants, including coffee seeds and tea leaves pesticide: a substance that keeps insects or harmful materials away from a plant alert: awake and paying attention ward off: to keep away something

发表于:2018-12-28 / 阅读(33) / 评论(0) 分类 趣谈英语

SCIENCE IN THE NEWS - Polio Vaccine Ban in Parts of Nigeria / Safety Laws Urged for India / Two More Elements? By Broadcast: Tuesday, March 02, 2004 (THEME) VOICE ONE: This is SCIENCE IN THE NEWS, in

发表于:2019-01-02 / 阅读(50) / 评论(0) 分类 科技之光

EU Hopes Pesticide Ban Will Halt Bee Decline The targeted farm chemicals, which will be banned for two years starting this December 1, belong to a class of insecticides called neonicotinoids. They are a type of insect nerve agent that has been widely

发表于:2019-01-14 / 阅读(55) / 评论(0) 分类 VOA标准英语2013年(五月)