单词：biological control of insect pests
单词：biological control of insect pests 相关文章
[00:00.64]易考范文二 [00:02.71]At first sight, the cartoon is not uncommon: [00:08.18]a man is spraying insecticide on a mass of pests [00:12.01]to prevent them from spreading diseases. [00:14.41]But on reflection, [00:16.05]we can realize it ac
考研英语易考范文背诵
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
(科普英语)Earth and Sky
Broadcast: Jan 29, 2003 The use of insects as agents of warfare is not a new idea. In the 2) Biblical story of the 3) Exodus, one of the 4) plagues visited upon the Egyptians was a horde of 5) locusts
VOA2003（上）-科技先知
Broadcast: Jan 10 2003 The Pentagon has issued a statement 2) asserting the military is prepared to protect its personnel from possible biological weapons attack. On the surface, the Pentagon's assert
VOA2003（上）-健康之旅
[0:02.043]UNIT 2 Talking About Lessons [0:06.942]Lesson 6 What's an Insect? [0:09.963]Let's talk. [0:12.493]What are you doing? [0:13.932]Uh..., nothing. [0:16.289]I'm not [0:16.779]telling you. [0:18.024]Oh, please. [0:19.697]OK. It's a ladybug. [0:
新路径小学英语五年级上册(三起)
[00:03.76]UNIT 2 Interesting Lessons [00:07.18] Lesson 6 What's an Insect? [00:11.33]Let's talk. [00:14.13] What are you doing? [00:15.44] Uh...,nothing. [00:17.93]I'm not telling you. [00:19.52]Oh, please. [00:22.04]OK. It's a ladybug. [00:23.79]It'
新路径小学英语五年级上册(一起)
There are a lot of pests and ladybirds in Bobby's garden now. Sam comes to help Bobby. 现在，波比的花园有很多昆虫和瓢虫。萨姆过来帮助波比。 Look, Bobby. Here are some ladybirds. They can help you. 看，波比。这里有些瓢
江苏译林版牛津小学英语(3起)五年级下册
ARI SHAPIRO, HOST: At the University of Wisconsin, some students are blending art and science to create hotels that might save disappearing insects. Susan Bence of member station WUWM explains. SUSAN BENCE, BYLINE: Every year, lecturer Katie Martin-M
2017年NPR美国国家公共电台6月
Is there any sound more annoying than the whine of a [dict]mosquito[/dict]? Yes, mosquitoes are pests through and through. But there's more to their irritating whine than meets the ear. For mosquitoes, that's the sound of love. It's well known by sci
英语时差8，16
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
2010年VOA慢速英语(十一)月
Diseases Jump Borders to Infect African Livestock 疾病跨境感染非洲牲畜 The United Nations Food and Agriculture Organization is urging farmers to be on guard against transboundary animal diseases. Officials warn that ticks, lice and other pe
2015年VOA慢速英语(九)月
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
VOA标准英语2013年(四月)
Pick the World's Ugliest Insect Arizona State University and Northern Arizona University want your vote at askabiologist.asu.edu/uglybugs to help them crown the ugliest insect in the world. Adam Hinterthuer reports Will you pick Sweetness or The Goll
60秒科学
AGRICULTURE REPORT - Biological Controls, Part 1 By Mario Ritter Broadcast: Tuesday, April 13, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biological controls are living
农业与发展
AGRICULTURE REPORT - Integrated Pest Management By Mario Ritter Broadcast: Tuesday, February 22, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. The use of pesticides was an impor
农业与发展
AGRICULTURE REPORT - Question from Vietnam: How Can Food Companies Control Pests Safely? By Mario Ritter Broadcast: Tuesday, April 12, 2005 I'm Gwen Outen with the VOA Special English Agriculture Repo
农业与发展
When you arrive in New Zealand, people from Biosecurity check that do not bring any food with you. Because we are an island country, we try to keep out pests from other countries. We are not always successful though. Listen to September 25th 2008 for
新西兰英语
China's father of hybrid rice is planning to expand its production of sea-rice at a newly founded research center in Qingdao, a port city in the eastern province of Shandong, local sources said last Saturday. 据当地知情人士上周六透露，中国
英语新闻
Israel Practices Biological Attack Response The Israeli government has carried out a two-day exercise it says is aimed at boosting preparedness for any terrorist attack aimed at sparking an outbreak of a highly contagious disease. Israeli officials e
VOA标准英语2011年(十二月)
农业AGRICULTURE 农业方式Agriculturalpractices 农业设备Agriculturalequipment 农业管理Agriculturalmanagement 农业方法Agriculturalmethods 农业害虫Agriculturalpests 农业生产Agricu
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