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
2023-08-05
46
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、Unusual insects.
B、Crop pests and diseases.
C、Different organisms.
D、Only viruses and bacteria.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2900212.html
相关试题推荐
[originaltext]Doyouhavecancer?Whetheryou’vejustbeendiagnosedorwhe
[originaltext]Doyouhavecancer?Whetheryou’vejustbeendiagnosedorwhe
[originaltext]Doyouhavecancer?Whetheryou’vejustbeendiagnosedorwhe
[originaltext]Mostpeoplehaveageneralinterestinphilosophy.Plus,itm
[originaltext]Manychildrenfirstlearnthevalueofmoneybyreceivingan
[originaltext]MostschoolsintheUnitedStatesreceivemoneyfromfederal
[originaltext]MostschoolsintheUnitedStatesreceivemoneyfromfederal
[originaltext]MostschoolsintheUnitedStatesreceivemoneyfromfederal
[originaltext]M:(5)It’ssocoldnow,butthismorningitwassohotands
[originaltext]M:(5)It’ssocoldnow,butthismorningitwassohotands
随机试题
FiveGoldenRulesforGivingAcademicPresentationsAcademicpresentationsared
Musicistheresultofthoughtintheformofattitude.Thereisnooneway
[originaltext]W:So,you’reanarchitect?M:Yes.W:Doyouworkforapublico
管理者把信息传递给单位或组织以外的个人,让相关者(股东、消费者、政府等)了解感到
募集资金直接投资于固定资产项目的,发行人根据重要性原则披露以下()内
或有事项准则规定的必须在会计报表附注中披露的或有负债包括()。 Ⅰ.已
患者,女性,46岁,因怀疑上消化道出血入院,需做粪便隐血试验。护士向其介绍试验前
某省政府公布的政府采购限额标准为30万元,货物公开招标限额标准为100万元。该省
关于腱反射,下列哪几项不正确?( )A.是位相性牵张反射 B.指缓慢持续牵拉
某建筑公司2008年年末有关资产、负债和所有者权益资料见下表。 单位:万元
最新回复
(
0
)