首页
登录
职称英语
Scientists have created a tomato that can grow on salty water. The plant is
Scientists have created a tomato that can grow on salty water. The plant is
游客
2024-07-03
35
管理
问题
Scientists have created a tomato that can grow on salty water. The plant is the first crop of its kind ever produced in the world.
Its significance can not be overestimated (高估). The new technology can help mankind solve the problem of feeding its ever-expanding population. It is estimated that by 2025 the world population will amount to more than 9 billion, an increase of 3 billion over 2000. Each day 240,000 more people are born, ready to be fed like the rest of us. Unfortunately, not all the land on Earth can be used to grow crops for humans. About 24.7 million acres of the problem is irrigation (灌溉). When farmers water their crops, salts in the water also enter the soil. Over time, salts such as sodium (钠) and calcium (钙) build up to such a point that they severely harm the growth of crops. Salts destroy most plants’ ability to draw up water through their roots.
But, the new variety of tomato produced by American and Canadian scientists can store salts in its leaves so that the fruit doesn’t taste salty. Researchers hope this technology will enable areas of poor-quality land to become productive (多产的). And they can feed some of the world’s growing population. [br] The world "significance" (Para. 2) means ______.
选项
A、importance
B、quality
C、price
D、quantity
答案
A
解析
推断题。短文第二段第一句是第二段的主旨句,也就是论点。下面的内容都是解释说明并论证第一句的。第二段整段都是在讲这项新技术的重要性。所以可以推断significance的意思应该是选项A。
转载请注明原文地址:https://tihaiku.com/zcyy/3661195.html
相关试题推荐
Scientistshavecreatedatomatothatcangrowonsaltywater.Theplantis
Interestingasdolphins(海豚)aretoscientists,itistheirintelligenceand
Interestingasdolphins(海豚)aretoscientists,itistheirintelligenceand
Interestingasdolphins(海豚)aretoscientists,itistheirintelligenceand
Whatdoscientiststhinkofdreams?Manyscientistsbelievethatdreamsare_____
Whatdoscientiststhinkofdreams?Manyscientistsbelievethatdreamsare_____
Whatdoscientiststhinkofdreams?Manyscientistsbelievethatdreamsare_____
Whatdoscientiststhinkofdreams?Manyscientistsbelievethatdreamsare_____
About15yearsago,scientistsdidmanyexperiments(develop)_____thetoolsto
Scientistsshouldbekept______ofthelatestdevelopmentsintheirresearchar
随机试题
A------TakeCareNottoLeaveThingsBehindJ------ShootingProhibitedB------L
工程保险费包括()。A.养老保险费 B.工伤保险费 C.建筑工程一切险
从某种意义上讲,所有的人都处在极健康和极不健康两端边线中间的某一点。这句话反映了
下列各项中,关于投资性房地产的初始计量的表述不正确的是( )。A.外购的投资性房
随着金融市场的发展,( )已成为商业银行的一种重要资产形式。A.期货投资 B
中国药典中酸碱度检查用水需用A:矿泉水 B:二次蒸馏水 C:微孔滤膜过滤后的
产妇,28岁,妊娠高血压综合征,剖宫产术后静脉滴注硫酸镁。若发生硫酸镁中毒,护士
关于化脓性脑膜炎的脑积液检查结果,下列哪一项不会出现A.压力升高 B.糖及氯化
A.关节被动活动正常而主动活动不能 B.主动活动和被动活动均不能 C.主动活
(2021年真题)根据《医疗废物管理条例》,医疗废物集中处置单位的贮存、处置设施
最新回复
(
0
)