Large-scale study 'shows neonic pesticides harm bees' 大型研究结果显示烟碱类杀虫剂对蜜蜂有害
迄今为止最广泛的一项研究调查得出结论:新烟碱类杀虫剂对蜜蜂和野峰有害。科研人员发现与杀虫剂中化学成分的接触降低了蜜蜂蜂巢的越冬存活率,同时大黄蜂和独居蜂的蜂王繁殖数量也有所减少。这项调查研究覆盖了英国、德国和匈牙利境内共两千公顷的土地,目的是研究杀虫剂对自然界真正的影响。请听报道。
Much research on neonicotinoid pesticides has been carried out in labs. But this study has assessed their impact in the wider environment. The researchers found that bumblebees and solitary bees exposed to the pesticides were less likely to produce new queens. For honeybees in the UK and Hungary, hives were more likely to die off over the winter.
Professor Richard Pywel is from the Centre for Ecology and Hydrology in the UK. ‘This is important because many crops globally are insect pollinated and without pollinators, we would struggle to produce some foods.’
Some environmental campaigners say these findings should spell the end for neonicotinoids. But a manufacturer says they're convinced their product isn't bad for bees and highlighted part of the study that showed honeybees in Germany were not affected by the pesticides.
词汇表 neonicotinoid pesticides 新烟碱类杀虫剂
impact 影响
bumblebees 大黄蜂
exposed to 接触到
queens 蜂王
hives 蜂巢
pollinators 传递花粉的昆虫
spell the end 意味… 的终结、结束
convinced 坚信
测验 请听报道并回答下列问题。
1. Where were most of the previous studies of neonicotinoid pesticides carried out?
2. What impact did neonicotinoid pesticides have on bumblebees?
3. True or false? Honeybees in all countries were affected by the pesticides.
4. Which word in the text means ‘results of investigations or research’?
答案 1. Where were most of the previous studies of neonicotinoid pesticides carried out?
Previous studies were mostly carried out in labs.
2. What impact did neonicotinoid pesticides have on bumblebees?
The study showed bumblebees exposed to pesticides are less likely to produce new queen bees.
3. True or false? Honeybees in all countries were affected by the pesticides.
False. Part of the study showed honeybees in Germany were not affected by the pesticides.
4. Which word in the text means ‘results of investigations or research’?
Findings.
四级听力考试高频习语(2)
大学英语四级考试常用短语汇总(A-E)
大学英语四级考试常用短语汇总(O-W)
英语四级听力60个必考习语详解(02)
英语四级听力60个必考习语详解(09)
大学英语四级考试常用短语汇总(一)
四级英语460个核心单词三
新四级冲刺需牢记700核心词『5』
浓缩版四级重点词汇
大学英语四级考试常用短语汇总(I-O)
英语写作技巧善用高级词汇
四级听力考试高频习语(8)
大学英语四级考试常用短语汇总(3)
新四级冲刺需牢记700核心词『4』
英语四级词汇常用动词固定搭配(4)
新四级冲刺需牢记700核心词『1』
四级单词考前天天背第2天
10篇文章帮你搞定4级词汇(10)Canada Becomes a Nation
大学英语四级考试常用短语汇总(二)
拿什么拯救你,我的四级词汇?
10篇文章帮你搞定4级词汇(8)A Time to Say Hello
四级词汇详解这样记单词快速轻松过目不忘
新四级冲刺需牢记700核心词『3』
英语四级听力60个必考习语详解(06)
四级听力考试高频习语(5)
10篇文章帮你搞定4级词汇(6)An Ideal Position
英语四级听力60个必考习语详解(11)
四级英语460个核心单词四
名师四级词汇复习建议
四级听力考试高频习语(7)
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |