英语听力：2013-12-29 地平线：什么害死了我们的蜜蜂—17

 -There are at least pieces of evidence which show really serious impacts from levels of neonicotinoids that bees, wild bees could be exposed to in wild environment.And the arguement against the ban was laid out by one of the pesticide¹ manufacturers.

-These trials show that there is no risk to pollinate or form those ** when used correctly in the environment.

There was a lot of concern in the audience.

-I'm very worried I could still (be) going to buy local supermarket and buy lettuce² of garden spray, which contains various neonicotinoids.

It's clearly to me that even though many of the people here tonight had differing opinions, there is a hunger for clarity. 

So I'm heading back to R*, where there is another group of scientists looking at the pesticides³ from a completely different angle. These dimly-lit red corridors are the first line of the fence against very dangerous collection of insects.

-Why the red light?

-OK. Insects don't really see red light. So, to them, this corridor is dark, which means they are not going to fly out here, which is just a conditional⁴ security. Rooms are sealed anyway.

Professor Lin Field wants to show me how we underestimate the value in pesticides.

-This room here.

-So what we've got here?

-OK. So this is actually a Chinese cabbage plant and this is the plant that we verily just introduce the pesticide, and this is the one that's been in the cage with the pester⁵ out, maybe a week. And you can see there is very little left. And with the most crops we grow, somewhere between 30 and 40 percent would be lost in pest diseases, if we made no effort to control.

-So in your view, we really need these pesticides?

-In my view at the moment, I think there are some more alternatives, but most of our crop protection does rely on modern chemistry, which are very effective in pesticides, very safe, very low-remaining in toxicity⁶, and they play a big role in our food production systems.

1 pesticide   

n.杀虫剂，农药

参考例句：

• The pesticide was spread over the vegetable plot.菜田里撒上了农药。
• This pesticide is diluted with water and applied directly to the fields.这种杀虫剂用水稀释后直接施用在田里。

2 lettuce   

n.莴苣；生菜

参考例句：

• Get some lettuce and tomatoes so I can make a salad.买些莴苣和西红柿，我好做色拉。
• The lettuce is crisp and cold.莴苣松脆爽口。

3 pesticides   

n.杀虫剂( pesticide的名词复数 )；除害药物

参考例句：

• 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》

4 conditional   

adj.条件的，带有条件的

参考例句：

• My agreement is conditional on your help.你肯帮助我才同意。
• There are two forms of most-favored-nation treatment:conditional and unconditional.最惠国待遇有两种形式:有条件的和无条件的。

5 pester   

v.纠缠，强求

参考例句：

• He told her not to pester him with trifles.他对她说不要为小事而烦扰他。
• Don't pester me.I've got something urgent to attend to.你别跟我蘑菇了，我还有急事呢。

6 toxicity   

n.毒性，毒力

参考例句：

• The hoarse grunt or squeal is characteristic of toxicity.嘶哑的哼声和叫声是中毒的特征。
• Dieldrin is related to aldrin,and its toxicity to earthworms is similar.狄氏剂与艾氏剂有关，对蚯蚓的毒性是相似的。