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
25
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
America’smorecapitalistsportsfanscommonlyacknowledgethattheircountry
TheRussianairliner[br][originaltext]ARussianairlinerhasmadeanemer
下列关于消防应急管理的广播设置的要求中正确的是()A.扬声器的额定功率不应
下列部位中,应设置防烟系统的是()A.防烟楼梯间前室 B.敞开楼梯间 C.
属于祛痰药的是()。A:氨溴索 B:可待因 C:乙酰半胱氨酸 D:羧甲司
男性,20岁。活动后心悸气急2月。检查发现肝大,质地软,轻压痛,表面平滑,腹部移
A.紫菀B.款冬花C.桑白皮D.百部E.苏子润肺止咳,灭虱杀虫()。
航空运输的成本结构是()。 A.低可变成本和高固定成本 B.低可变成本和低固
不符合妄想特征的是( )。A.内容与客观现实不符合 B.是一种病理的信念
正常妊娠24周末,子宫底高度在A、脐下2指 B、脐下1指 C、平脐 D、脐
最新回复
(
0
)