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
2024-03-08
74
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:http://tihaiku.com/zcyy/3516471.html
相关试题推荐
[originaltext]Theapparentbenefitsofmanyofthetreatmentsofacold—suc
[originaltext]Whatscaresawomanthemost?WhenIdidanInternetsear
[originaltext]Whatscaresawomanthemost?WhenIdidanInternetsear
[originaltext]Perhapsyouworkatanofficewithastateddresscode,oryo
[originaltext]Perhapsyouworkatanofficewithastateddresscode,oryo
[originaltext]Thestudyon400children.inthejournalScience,initially
[originaltext]M:Hey,Linda.WelcometoourCampusBroadcastingStudio.Todayw
[originaltext]W:Hello,John,what’sup?M:Ihavebeenworkinglikehellwith
[originaltext]W:Hello,John,what’sup?M:Ihavebeenworkinglikehellwith
[originaltext]W:Hello,John,what’sup?M:Ihavebeenworkinglikehellwith
随机试题
Readthefollowingarticleonrecruitingandmanagingstaffandthequestions.F
建设一个和谐繁荣的社会一直以来都是人类的理想和追求。但事实上,人类文明通常都充满冲突和敌对。所以,全球化和一体化进程中的各种争端和中国社会转型中的诸多矛盾都
Afewyearsagoitwasfashionabletospeakofagenerationgap,adivision
房地产业的行业类型中,( )主要是分析、测算和判断房地产的价值并提出相关专业意
患儿女,4岁。因高热、咳嗽5天.呼吸促3天,加重1天入院。护理体检:T39.2℃
法国学者贝松总结了谈话方式的发展,包括()。A.评审的方法由不进行谈话的打分法发
1994-139.能敛肺涩肠的药物是 A.乌梅B.诃子C.罂粟壳D.五倍
商业银行合规的“规”是指适用于银行业经营活动的()。A.自律性组织的行业准则
根据《社会保险法》,失业人员从失业保险基金中领取失业保险金应符合的条件有( )。
根据现行规定,施工企业为职工缴纳的工伤保险费,属于建筑安装工程费中的()。A.文
最新回复
(
0
)