首页
登录
职称英语
[Gardener wanted.NASA requires a gardener to grow plants in a greenhouse
[Gardener wanted.NASA requires a gardener to grow plants in a greenhouse
游客
2023-10-17
12
管理
问题
[Gardener wanted.NASA requires a gardener to grow plants in a greenhouse.The successful applicant must be willing to travel long distances.The location is Mars.Transport will be provided.Please contact for further details and to arrange an interview.]
For the moment the position described above is an imaginary vacancy.It will probably be many more years before gardeners are needed on Mars.However, the actual growing of plants on Mars may be only a year away.Scientists are currently suggesting a mission that might put plants on Mars next year.
The idea is to use a small NASA spacecraft called a ’Mar Scout’ to send the plants in a miniature greenhouse.Landing on Mars it would scoop up some Martian soil.Enhance it with nutrients and then try to germinate and grow the seeds.The seeds would be bioengineered mustard plants, altered so that they would glow when they are struggling.Using bioengineering the mustard seed genes can be combined with jellyfish genes that make the plants glow with a soft green aura when they encounter problems.Healthy, thriving plants will not glow.When the scientists observe a plant is glowing, they can study it and learn what needs to be charged for plants to be able lo grow on Mars.
The aim of the experiment is to eventually be able to successfully grow plants in Martian greenhouses, and perhaps one day openly on Mars itself.What value does this have? After all, it would not be viable to farm food on Mars and then return it to Earth.
The meaning lies in being able to sustain life on Mars itself.It is far too expensive to transport all the supplies that would be needed by a Martian colony form Earth.So a crucial element for establishing a long-term human presence on Mars is a sustainable life support system.This is called ’ Bioregenerative’ , a renewable symbiotic relationship between plants, humans, and microbes.The humans produce the carbon dioxide and nutrients via their waste that the plants need, in turn they produce the oxygen and food that the humans need.The microbes make the process possible.Also, there is the social and symbolic value.When Earth life is actually growing on another planet that is likely to reignite interest in space travel: public interest and support for space travel is essential if governments are to be permitted to invest the huge sums of money required for such experimentation.
Questions 56—60 Complete the following schema with no more than three words for each blank according to the passage.
[br]
选项
答案
life support system
解析
根据题意定位至文章最后一段。原文第三句提到“So a crucial element for establishing a long - term human presence on Mars is a sustainable life support system.”由此可知,在火星上建立长期人类存在的一个关键因素是可持续的生命支持系统,故本空填life support system。
转载请注明原文地址:https://tihaiku.com/zcyy/3104514.html
相关试题推荐
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
教育部要求,课外活动应作为学校生活的一部分。(require)TheMinistryofEducationrequiresthatextra—cur
Theuseofplantsforhealingisundoubtedlytheworld’soldestandmostcom
Theuseofplantsforhealingisundoubtedlytheworld’soldestandmostcom
Theuseofplantsforhealingisundoubtedlytheworld’soldestandmostcom
Theuseofplantsforhealingisundoubtedlytheworld’soldestandmostcom
[Gardenerwanted.NASArequiresagardenertogrowplantsinagreenhouse
随机试题
Whowroteahighly-acclaimedNovelMobyDick?A、WilliamJames.B、HermanMelville.
InLondon,overhalfofthehomesbuiltbetween1919and1980hadonegarage
A0-A4图纸宜横式使用,必要时也可立式使用。
(2018年真题)中国证监会及其派出机构可以对以下哪些主体的违法违规行为进行行政
学校组织运动会、老师让班级同学训练、同学之间相互监督、没有好好训练的可以举报给老
某施工企业按照2/10、77/30的条件购入货物20万元,如果该施工企业放弃折扣
下列描述中错误是A:注射剂贮存期约为2年B:糖浆剂贮存期约为1年C:酊剂贮存
代收代管单位挪用住宅专项维修资金的,由县级以上地方人民政府建设(房地产)主管部门
可摘局部义齿修复前口内检查的内容不包括A:缺牙区的部位和数目 B:缺牙区牙槽嵴
工程监理单位和被监理工程的()有隶属关系或其他利害关系的,不得承担该项建设
最新回复
(
0
)