植物病害

Earth and Sky:Plants vs. Insects 植物和昆虫

Plants vs. Insects 植物和昆虫 New research is shedding light on one of the longest running battles of all time -- the war between plants and insects. Plants may seem helpless, but they have complex chemical defenses. Plants vs. insects -- today on E

发表于:2018-12-07 / 阅读(88) / 评论(0)

(科普英语)Earth and Sky

AGRICULTURE REPORT - Sharpshooters

AGRICULTURE REPORT – February 12, 2002: Sharpshooters By George Grow This is the VOA Special English AGRICULTURE REPORT. Farmers in the American state of California are guarding against an insect ca

发表于:2018-12-07 / 阅读(75) / 评论(0)

农业与发展

VOA慢速英语2017 巴西、美国发现防治柑橘黄龙病分子

Researchers have identified a molecule that attracts an insect which carries citrus greening disease. 研究人员确认一种分子可吸引携带黄龙病病毒的昆虫。 This development is expected to help farmers control a disease that has des

发表于:2018-12-07 / 阅读(130) / 评论(0)

2017年VOA慢速英语(十二)月

VOA慢速英语2009年-Development Report - Diseases Threaten Ban

This is the VOA Special English Development Report. A Senegalese banana vendor in Dakar, Senegal Two separate diseases are destroying banana and plantain crops in Africa. They could threaten food security for millions of Africans who depend on banan

发表于:2018-12-15 / 阅读(76) / 评论(0)

VOA慢速英语2009年（九）月

VOA慢速英语2013 AS IT IS 2013-07-15 The Fight to Protect Cassava Plants

AS IT IS 2013-07-15 The Fight to Protect Cassava Plants Hello, and welcome once again to As It Is, our daily show for people learning everyday American English. Im Christopher Cruise in Washington. Today on the program, we tell about the moringa olei

发表于:2018-12-16 / 阅读(110) / 评论(0)

2013年VOA慢速英语(七)月

趣味青春英语电台第57期:Make your toes curl

Idiom: Make your toes curl ( be digusted ) Hit the book: Insect Pitcher plant Digestive juices Flytrap Nectar Clap

发表于:2018-12-27 / 阅读(113) / 评论(0)

趣味青春英语

Earth and Sky:Plant Signals 植物的语言

Plant Signals 植物的语言 Can plants smell and taste in the same way that animals do? Can they talk to each other and to insects? Learn how scientists hope to unravel some of the mysteries of plant senses -- on today's Earth and Sky. JB: This is Eart

发表于:2019-01-02 / 阅读(189) / 评论(0)

(科普英语)Earth and Sky

DEVELOPMENT REPORT - Dog Collars and Leishmaniasis

DEVELOPMENT REPORT – September 30, 2002: Dog Collars and Leishmaniasis By Jill Moss This is the VOA Special English Development Report. Up to five-hundred-million people are infected each year with

发表于:2019-01-02 / 阅读(128) / 评论(0)

农业与发展

AGRICULTURE REPORT - Tsetse Fly Threat to Agriculture

AGRICULTURE REPORT – June 4, 2002: Tsetse Fly Threat to Agriculture By George Grow (Picture -FAO) This is the VOA Special English AGRICULTURE REPORT. The tsetse (TSEET-see) fly is a serious problem

发表于:2019-01-06 / 阅读(96) / 评论(0)

农业与发展

AGRICULTURE REPORT - Pest Management

AGRICULTURE REPORT – October 29, 2002: Pest Management By Gary Garriott This is the VOA Special English Agriculture Report. Since nineteen-forty-five, farmers have used pesticides, poisons made from

发表于:2019-01-11 / 阅读(98) / 评论(0)

农业与发展

VOA慢速英语2010年-Agriculture Report - Farmers in East A

This is the VOA Special English Agriculture Report. About eight hundred million people in Africa, Asia and South America eat cassava. The plant is a major source of food energy and a major food security crop. It can survive in poor soil and without m

发表于:2019-01-11 / 阅读(80) / 评论(0)

2010年VOA慢速英语(六)月

VOA慢速英语2010年-Agriculture Report - Integrated Pest M

This is the VOA Special English Agriculture Report. Farmers know that if you reduce harmful insects and diseases in your crops, you have a chance for a better harvest. Today, many farmers and experts praise Integrated Pest Management, or IPM. IPM is

发表于:2019-01-12 / 阅读(127) / 评论(0)

2010年VOA慢速英语(十一)月

VOA标准英语2013--Global Trade Carries Risk of Pests

Global Trade Carries Risk of Pests More than one trillion dollars worth of agricultural products is traded every year. But as countries buy and sell fruits, vegetables, timber and other products, they also may be putting domestic plants at risk. That

发表于:2019-01-14 / 阅读(86) / 评论(0)

VOA标准英语2013年(四月)

运动休闲—Growing trees is not so simple

怎么才能让小树健康成长呢？ THERE is a lot more to planting a tree than just putting it into the ground. Even before planting the tree you need to decide which kind of tree to plant. And,

发表于:2019-01-20 / 阅读(140) / 评论(0)

奥运英语

英语听力文摘 English Digest 466、谁在啃我的叶子！

作为一株小小的或是大大的植物(矛盾吗?),被生长在厚厚的泥土之下的根所束缚着,只能眼睁睁地看着虫子、鸟儿啃食自己的叶子,啄食自己的果实?植物也有保护自己的方法哦,一起来看看吧 Plan

发表于:2019-01-26 / 阅读(69) / 评论(0)

英语听力文摘 English Digest

VOA慢速英语20060419b

HEALTH REPORT - Increasing Supplies of Malaria Drug Through Genetic EngineeringBy Cynthia Kirk Broadcast: Wednesday, April 19, 2006 I'm Shep O'Neal with the VOA Special English Health Report. Malaria

发表于:2019-01-30 / 阅读(107) / 评论(0)

2006年慢速英语（四）月

Developing Wheat Resistant to Leaf Rust

59 美国科学家正试图培育抗叶锈病小麦 DATE=6-19-01 TITLE=AGRICULTURE REPORT - Developing Wheat Resistant to Leaf Rust BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(148) / 评论(0)

科技之光

英语听力—环球英语 1242 Using the Soybean

Voice 1 Welcome to Spotlight. Im Joshua Leo. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 At Kansas State University, the Ame

发表于:2019-02-14 / 阅读(91) / 评论(0)

环球英语 Spotlight

英语听力—环球英语 1139 Planting Ancient Trees

Voice 1 Hello and welcome to Spotlight. I'm Joshua Leo. Voice 2 And I'm Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand no matter where in the world they live. Voice 1 Imagine a tree. Now, make

发表于:2019-02-21 / 阅读(92) / 评论(0)

环球英语 Spotlight

剑桥雅思报考指南第30期:OG07 Recording 32

听力文本 Recording 32 录音32 In my talk today, I'm going to be looking at plants that have had an impact on our world and our history. 今天我将讲讲对我们整个世界和历史产生影响的植物。 Let's start with the potato. 先从土

发表于:2019-03-15 / 阅读(230) / 评论(0)

剑桥雅思报考指南

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