首页
登录
职称英语
[originaltext] Insects and diseases that attack food crops are moving as ris
[originaltext] Insects and diseases that attack food crops are moving as ris
游客
2023-08-04
20
管理
问题
Insects and diseases that attack food crops are moving as rising temperatures bring changes to the environment. Plant diseases alone destroy an estimated 10% to 16% of the world’s crops in the field, experts say, and plant diseases destroy another 6% to 12% after harvest. A new study examines the movement of crop pests and diseases, and how it will affect agricultural production worldwide. Dan Bebber is a senior research fellow at the University of Exeter in Britain. He says research has shown that wild plants and animals are moving towards Earth’s North and South poles as the planet warms. Mr. Bebber wanted to know if the same thing was happening with organisms that attack agricultural crops. He examined reports of first sightings of new insects and diseases around the world. The records came from CABI—the Centre for Agricultural Bioscience International. He says the group began collecting information from developing and industrialized countries years ago. Dan Bebber and his research team studied 612 different organisms—from viruses and bacteria to insects like beetles and butterflies. They found that since 1960, crop pests and diseases have been moving towards the poles at an average rate of about 3 kilometers each year. Mr. Bebber says this puts the most productive farmland in the world in danger. As new species of pests and diseases evolve and potentially the environment for them becomes more amenable at higher latitudes, the pressure on the breadbasket of the world is going to increase. Farmers face other threats. Invasive species passed through trade are also causing problems. Gene Kritsky is an entomologist at the College of Mount St. Joseph in Ohio. He specializes in the study of insects. He says climate change may improve conditions for some invasive species. It means that species in other parts of the world that might do well in warmer temperatures can now do well in the breadbasket of America. Another entomologist Christian Krupke of Purdue University says the effects of these changes will depend very much on the crop, the insect and the disease. But he says the research is a warning sign that people should care about climate change and do something about it.
Questions 23 to 25 are based on the recording you have just heard.
23. How bad are plant diseases to the crops?
24. What did Dan Bebber and his research team study?
25. What does Gene Kritsky say about climate change?
选项
A、They rot the roots of crops.
B、They attack most of the crops in the field.
C、They destroy up to 18% of the crops before harvest.
D、They destroy about 10%-16% of the world’s crops in the field.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2896577.html
相关试题推荐
[originaltext](23)WiththeInternetrevolutionusheringinnewmodesofco
[originaltext](23)WiththeInternetrevolutionusheringinnewmodesofco
[originaltext]Hereisaquestionforyou.Thecustomerisalwaysright.Rig
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
[originaltext]MedicalexpertssaymostAmericansdonotgetenoughsleep.T
[originaltext]MedicalexpertssaymostAmericansdonotgetenoughsleep.T
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]W:WhatdoyouthinkofTV?Ithinkitisafalsegod,adang
[originaltext]W:WhatdoyouthinkofTV?Ithinkitisafalsegod,adang
随机试题
[originaltext]AmericanIndiansgrewandsmokedtobaccobeforeColumbuscame
[originaltext]FriendsReunited—oneoftheUK’sfirstsocialnetworks—hasann
区别C25-D-与C25-L-型甾体皂苷可用()A.三氯乙酸反应 B.红外光
下列关于量本利分析图的说法中,正确的有()。A.基本的量本利分析图中固定成本线是
髋关节脱位的最多见类型是A:前脱位 B:后脱位 C:中心型脱位 D:合并髋
下列选项与第三次科技革命密切相关的是() A.内燃机车B
血清中含量最少的免疫球蛋白是A.IgG B.IgD C.IgE D.IgM
下列数据整理与显示方法中,适用于顺序数据的有()。A.圆形图 B.累积频数
灯具和设备安装项目内容包括()。A.下滑台安装 B.指点信标安装 C.雷达
诊断急性胰腺炎最广泛应用的化验指标是 A.血清淀粉酶 B.血清淀粉酶的同工酶
最新回复
(
0
)