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
2024-03-09
72
管理
问题
Insects and diseases that attack food crops are moving as risen temperatures bring changes to the environment. Plant diseases alone destroy an estimated 10 to 16 percent of the world’s crops in the field, experts say, and plant diseases destroy another 6 to 12 percent 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 toward 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 toward 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 affect all agricultural production worldwide.
B、They impact most part of the crops in the field.
C、They destroy up to 22% of the crops before harvest.
D、They destroy about 10% to 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/3518354.html
相关试题推荐
[originaltext]Insectsanddiseasesthatattackfoodcropsaremovingasris
[originaltext]StudentsinAmericanschoolslearnfromanearlyagetogive
[originaltext]Thefirstyearofcollegeisoneofthebestandthemostint
[originaltext]Thefirstyearofcollegeisoneofthebestandthemostint
[originaltext]Thefirstyearofcollegeisoneofthebestandthemostint
[originaltext]Supposesomeoneinventedagiftcardsoversatilethatitcou
[originaltext]Supposesomeoneinventedagiftcardsoversatilethatitcou
[originaltext]Supposesomeoneinventedagiftcardsoversatilethatitcou
[originaltext]Whencaughtinpouringrainwithoutanumbrella,mostpeople
[originaltext]Whencaughtinpouringrainwithoutanumbrella,mostpeople
随机试题
Youshouldspendabout20minutesonQuestions1-13,whicharebasedonReading
SmallSchoolsRisingA)Thisyear’slistofthetop1
Thenewlybroadenedstadiumis_________ofthepreviousone.A、thesizeofthree
共用题干 某孕妇,25岁,结婚3年,未避孕,从未怀孕过,平素月经周期规律,现停
关于西方音乐中的歌剧,下列选项中正确的是。()A.由音乐、戏剧、舞蹈和美术
等级G与主观上对不舒适感觉评价有相应关系,当G=()时,其相应关系为无法忍
经产妇,36岁,孕40周,晨3时突然大量阴道出血,急诊来院。体检:血压16/10
泄泻气阴两伤变证证见A.小便短少,皮肤干燥 B.小便短黄,皮肤灼热 C.
2007-54.眩晕而见头重如蒙,胸闷恶心,食少多寐,舌苔白腻,脉濡滑。其治法是
根据《劳动合同法》,劳动者可以与用人单位解除劳动合同的有( )。A、用人单位排除
最新回复
(
0
)