首页
登录
职称英语
[originaltext] Thomas Tommy Carter is a plant scientist in North Carolina He
[originaltext] Thomas Tommy Carter is a plant scientist in North Carolina He
游客
2024-01-30
57
管理
问题
Thomas Tommy Carter is a plant scientist in North Carolina He works for the Agricultural Research Service in the United States Department of Agriculture. He leads Team Drought, a group of researchers at five universities. They have been using conventional breeding methods to develop and test soybeans that can grow well under dry conditions. Tommy Carter started working on drought-resistant soybeans in 1981. His research has taken him as far as China, where soybeans have been grown for thousands of years. Farmers in the United States, however, have grown soybeans for only about a century. Tommy Carter says the soybeans they grow are for the most part genetically similar. More differences, or diversification, could better protect crops against climate changes that can reduce production. Those changes include water shortages which could increase from global warming. The Agriculture Department has a soybean germplasm collection, a collection of genetic material passed from one generation to the next. Members of Team Drought studied more than 2,500 examples from the collection. They looked at ones from the ancestral home of soybeans, Asia. They searched for germplasms that could keep plants from weakening during hot, dry summers in the United States. Tommy Carter says they found only five. But these drought-resistant lines, he says, produce four to eight bushels more than normal soybeans under drought conditions. The yield depends on location and environment.
16 What is the purpose of Tommy Carter’s research?
17 Why did Tommy Carter go to China for his soybean research?
18 What do we learn about the five germplasm Tommy Carter’s team found?
选项
A、To find the similarity of soybeans in the world.
B、To protect soybeans against dry condition.
C、To collect materials for their papers.
D、To study the impact of global warming.
答案
B
解析
短文提到Tommy Carter的研究小组试图培育能在干旱条件下生长良好的大豆,之后又提到研究人员寻找在美国炎热干旱的夏季不易变得纤弱的种质,B与此相符,故正确。
转载请注明原文地址:http://tihaiku.com/zcyy/3405654.html
相关试题推荐
[originaltext](16)Thereisprobablynoareaofhumanactivityinwhichour
[originaltext](16)Thereisprobablynoareaofhumanactivityinwhichour
[originaltext]W:Hello,thisisMaryspeaking.M:Hi,Mary.ThisisOwen.W:Ah
[originaltext]M:Cindy,whatishappinessinyourmind?W:Whyask?It’sadiff
[originaltext]M:Cindy,whatishappinessinyourmind?W:Whyask?It’sadiff
[originaltext]M:Cindy,whatishappinessinyourmind?W:Whyask?It’sadiff
[originaltext](5)ThedryconditionsinCaliforniaaregoodforpeoplewho
[originaltext]Windturbinesaretallstructureswithlargebladesusedtop
[originaltext](1)Thepriceofgoldfelltoitslowestlevelinfiveyears
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolat
随机试题
Whatdoesthenewsitemmainlyreport?[br][originaltext](6)Atleastten
Animportantlecture________tomorrow,theprofessorhastostayuplateintothe
[originaltext]W:Whatareyoudoing?M:(8)I’morderingsomefilingcabinetsou
患者,女性,38岁。尿频、尿急、尿痛5天,体温39.5℃,左肾区有叩击痛,尿常规
重金属中毒时,血涂片中常增多的是()。A.嗜多色性红细胞 B.嗜碱性点彩红细
在良好的环境中,有的人却没有什么成就,甚至走向与环境所要求的相反道路;在恶劣的环
关于我国土地制度,说法错误的是:A.农村的土地归农民集体所有 B.用来建设经济
某新建宿舍楼项目,地下2层,地上16层,框架剪力墙结构。建设单位通过公开
宫颈癌的临床表现
下列各项中,不属于医师在执业活动中应当履行的法定义务是()。 A.遵守技术操作
最新回复
(
0
)