英语听力：2013-12-18 地平线：什么害死了我们的蜜蜂—12
时间：2018-12-03 作者：英语课 分类：探索与发现2013年
英语课
Our second suspects, pesticides 1, are the most controversial. This year the European commission analyzed 2 the two-year-ban on the use of called Neony Cortenoise. They said the evidence now showed that they were in unacceptable danger to bees feeding on flowering flowers.
“And this is what’s generating more Hidenoting : Neony Cortenoied pesticides. Often they come coated on the seeds, like on these rape 3 seeds. So that as the plant grows, the chemical spread throughout the organism: through the roots, the leaves, the flowers, even to the next trend: polum. Now one of the terms the scientists use to measure just how lethal 4 these things are is called LD-50. Those to this lethal to 50 percent, half of the test subject. And how lethal to our bees, is just 4 billion to a gram. Introduces another question: Just what are these things doing to our bees. ”
Neony Cortenoise are nerveagence, and they only infect insects. They were introduced in the 1990s to repace the more harmful pesticides. When used properly, they cause deadly perralisise in small insects like aifyts. But if they do that to afits, What’s the effect on the bees?
This scientist in Germany is investigating just that. 40 years of research made professor Randalf Manso a global authority on the nerve assisted maphis.
1 pesticides
n.杀虫剂( pesticide的名词复数 )；除害药物
- vegetables grown without the use of pesticides 未用杀虫剂种植的蔬菜
- There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧。 来自《简明英汉词典》
2 analyzed
v.分析( analyze的过去式和过去分词 )；分解；解释；对…进行心理分析
- The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
- The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》