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
2023-08-06
45
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:https://tihaiku.com/zcyy/2902094.html
相关试题推荐
[originaltext]M:YouareaprofessorofPhysicsattheUniversityofOxford;
[originaltext]M:Doyouthinkdreamshavespecialmeanings?W:No,Idon’
[originaltext]M:Doyouthinkdreamshavespecialmeanings?W:No,Idon’
[originaltext]M:YouareaprofessorofPhysicsattheUniversityofOxford;
[originaltext]M:YouareaprofessorofPhysicsattheUniversityofOxford;
[originaltext]M:YouareaprofessorofPhysicsattheUniversityofOxford;
[originaltext]M:YouareaprofessorofPhysicsattheUniversityofOxford;
[originaltext]W:I’veworkedininternationaltradeallmylife.Myfatherdid
[originaltext]W:I’veworkedininternationaltradeallmylife.Myfatherdid
[originaltext]M:Tonightwehaveaveryspecialguest.Mrs.AnnaSanchezisat
随机试题
StrategiesforWritingaLiteratureReviewAliterature
[originaltext]M:Thetelephonecompanysaysthattheycansendamanbetweenon
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditions
[originaltext]Religiousandprivateschoolsreceivelittleornosupportfr
某市一所初中在该市举办“绿色食品节”期间,利用学校地处市中心的位置,将操场改为临
《纪昌学射》是寓言故事,《丑小鸭》是童话,《一千零一夜》是民间故事。()
似蚓蛔线虫的感染阶段为()。A.蛔虫受精卵 B.蛔虫未受精卵 C.感染期蛔
肝硬化腹水应用利尿剂治疗无效,可用A.螺内酯 B.氢氯噻嗪 C.甘露醇 D
下列关于肺心病的发病机制,错误的是( )。A.肺小动脉玻璃样变 B.肌型小动
目前,金融期货主要类型有()。A:外汇期货 B:利率期货 C:股权类期货
最新回复
(
0
)