首页
登录
职称英语
British scientists are breeding a new generation of rice plants that will be
British scientists are breeding a new generation of rice plants that will be
游客
2024-04-26
17
管理
问题
British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more. Tim Flowers and Tony Yeo, from Sussex University’s School of Biological Sciences, have spent several years researching how crops, such as rice, could be made to grow in water that has become salty. The pair have recently begun a three-year programme, funded by the Biotechnology and Biological Sciences Research Council, to【C1】______which genes enable some plants to survive salty conditions. The aim is to breed this【C2】______into crops, starting with rice. It is estimated that each year more than 10m hectares of agricultural land are【C3】______because salt gets into the soil and stunts plants. The problem is caused by several factors. In the tropics, mangroves(红树林)that【C4】______swamps and traditionally formed【C5】______to sea water have been cut down. In the Mediterranean, a series of【C6】______have caused the water table to drop, allowing sea water to seep in. In Latin America, irrigation often causes problems when water is【C7】______by the heat, leaving salt deposits behind. Excess salt then enters the plants and prevents them functioning【C8】______. Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive. To overcome these problems, Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants’ growth. They have started to breed these characteristics into a new rice crop, but it will take about eight harvests before the resulting seeds are ready to be considered for【C9】______use. Once the characteristics for surviving salty soil are known, Flowers and Yeo will try to breed the【C10】______genes into all manners of crops and plants. Land that has been abandoned to nature will then be able to bloom again, providing much needed food in the poorer countries of the world.
A)evaporated I)create
B)barriers J)capability
C)normally K)establish
D)economic L)ensure
E)excluded M)capacity
F)lost N)commercial
G)droughts O)appropriate
H)perfectly [br] 【C10】
选项
答案
O
解析
空前定冠词和空后名词提示所填词可能为形容词或名词。将备选项中的词分别带入本句中可知,O)appropriate(适当的)符合句意及逻辑,故为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3572683.html
相关试题推荐
ACoolerPlanet[A]Scientistsarecookingupsolutio
ACoolerPlanet[A]Scientistsarecookingupsolutio
ACoolerPlanet[A]Scientistsarecookingupsolutio
Britishscientistsarebreedinganewgenerationofriceplantsthatwillbe
Britishscientistsarebreedinganewgenerationofriceplantsthatwillbe
Britishscientistsarebreedinganewgenerationofriceplantsthatwillbe
Britishscientistsarebreedinganewgenerationofriceplantsthatwillbe
Britishscientistsarebreedinganewgenerationofriceplantsthatwillbe
Britishscientistsarebreedinganewgenerationofriceplantsthatwillbe
Britishscientistsarebreedinganewgenerationofriceplantsthatwillbe
随机试题
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthe
Thereismountingevidencethatthefrequencyandmagnitudeoflandslidingi
蛋白质维持可溶的主要因素是A.蛋白质溶液的黏度大 B.氨基酸在溶液中呈兼性离子
下列关于资金时间价值的叙述错误的是()。A.资金时间价值相当于没有风险、没有通
水灰比增大而使混凝土强度降低的根本原因是( )。 A、水泥水化反应速度加快
患儿,10个月,因肺炎入院。现突然呼吸困难,烦躁不安,发绀,且进行性加重。体检:
丹瑟洛的MURDER学习策略中M代表() A、情绪的调整和维持B、理解
以下中国历史上著名历史事件按发生先后顺序排序,完全正确的一项是( )。A.牧野之
某公司当前普通股股价为16元/股,每股筹资费用率为3%,本期支付的每股股利为2元
男孩,6岁。突发寒战,高热,1天后全身出现多处紫斑。查体:血压70/50mmHg
最新回复
(
0
)