首页
登录
职称英语
The United Nations says the world’s population will increase by 34 percent b
The United Nations says the world’s population will increase by 34 percent b
游客
2023-08-16
28
管理
问题
The United Nations says the world’s population will increase by 34 percent by the year 2050. Scientists and others know it will be difficult to meet the food needs of so many people. A recent study shows that soybean crops and computers may help deal with the problem.
The U.N. predicts food production must increase by 70 percent to meet the needs of a richer population. The U.N. expects more people will live in cities than in rural areas. But today there is lit tie too low increase in the productivity of major crops. Kenneth Quinn is the president of the World Food Prize Foundation. He says the need to increase food production is the greatest difficulty humanity has ever faced, "There’ s going to be another 2 billion people on our planet between now and 2050 and how are we going to produce enough food for them to eat?" asked Quinn.
Darren Drewry is a scientist at the American Space Agency, NASA. He led a study of soybeans which NASA calls the world’ s most important protein crop. He says researchers using a computer were surprised to find that they were able to create a soybean plant that can be both more productive and use less water. "We find that there are changes to the architecture of modern soybean cultivars can be made to help us improve on many of these goals," said Drewry. Researchers were able to increase soybean productivity by 7 percent without using more water. The computer helped researchers do work that would have taken many years in the field. The next step is to test the computer ’s design.
We spoke to Stephen Long about that. He is a professor at the University of Illinois, and one of the writers of the report on the soybean study. He told us by Skype that researchers used computer program to study what would happen if they changed the way the plant grows. "One of the things the modelling predicted is that there’s too much leaf area so we’re actually removing leaves as the plant’s growing to get a lower leaf area. We’re also artificially modifying the angle of the leaves as well to reflect what the model predicted," said Long. Professor Long says it is important to find solutions to the predicted global food shortage before it happens. He says it will be 20 years before farmers can begin growing a more productive soybean once they have developed it.
The study on soybeans was published in the journal Global Change Biology. The National Science Foundation, NASA and the Bill & Melinda Gates Foundation paid for the study. [br] What’s the benefit of using computers in the research?
选项
A、It is more accurate than traditional methods.
B、It saves time compared with researches conducted in the filed.
C、It can provide many data.
D、It needs less space compared with researches done in the field.
答案
B
解析
推断题。根据文中The computer helped researchers do work that would have taken many years in the field可知用电脑比在地里实验节约时间。因此,正确答案是B。
转载请注明原文地址:https://tihaiku.com/zcyy/2930714.html
相关试题推荐
Whenyouthinkaboutthegrowthofhumanpopulationoverthelastcenturyor
Whenyouthinkaboutthegrowthofhumanpopulationoverthelastcenturyor
Whenyouthinkaboutthegrowthofhumanpopulationoverthelastcenturyor
Whenyouthinkaboutthegrowthofhumanpopulationoverthelastcenturyor
Whenyouthinkaboutthegrowthofhumanpopulationoverthelastcenturyor
Whenyouthinkaboutthegrowthofhumanpopulationoverthelastcenturyor
[originaltext]ListentoatalkinaclassaboutUnitedStateshistory.
[originaltext]ListentoatalkinaclassaboutUnitedStateshistory.
CigarettesmokingisahealthhazardofsufficientimportanceintheUnited
CigarettesmokingisahealthhazardofsufficientimportanceintheUnited
随机试题
[originaltext]M:Hello,Mrs.White,whatcanIdoforyou?W:Idon’tknowwhat
()向网络新闻组投稿()选定域名[br]()寻求交互式链接
A.黏膜表面白色凝乳状假膜 B.黏膜表面呈白色网状条纹 C.黏膜表面针尖大小
下列有关金融期权的表述正确的是( )。 Ⅰ、期权的买方在支付了期权费后,就获
A.40%B.70%C.30%D.50%E.60%空气相对湿度在()以下时,含
下列关于行政赔偿程序的说法错误的是()。A.赔偿请求人要求赔偿,应当先向赔偿义务
对客户信用评级方法而言,与传统的专家分析方法相比,违约概率模型能够直接估计客户的
下列说法正确的有()A.甲将摩托车借给李某,后又从李某处窃回。甲认识到摩托
在科室预防交叉感染的讨论会上,大家查找工作中的问题,小马提出了最关键和最突出的是
有特异性抗原受体的细胞是 A.NK细胞、T细胞 B.浆细胞、单核吞噬细胞
最新回复
(
0
)