得到
  • 汉语词
  • 汉语典
当前位置 :
ManyscientistsarenowexploringtheideaofgoingtoliveonMars.SomeotherscientistsfromtheMASAAMESCenter(美国宇航局)havealreadystartedthecreationofa“Marstown”andmanyothersareinfactalreadyexperimentingwit
1人问答
问题描述:

  ManyscientistsarenowexploringtheideaofgoingtoliveonMars.SomeotherscientistsfromtheMASAAMESCenter(美国宇航局)havealreadystartedthecreationofa“Marstown”andmanyothersareinfactalreadyexperimentingwithit.Ofcourse,theseexperimentsaredoneonEarthitselfbutthis“Marstown”hasanenvironmentpracticallylikethatofMars.
TheastronautsworkinginthesetownsweartheirspacesuitandalsodoeverythingtheywouldreallyhavetocarryoutiftheyevergotoMarsinthefuture.
ButMarswouldbelikeEarth,atemporary(临时的)placeforhumans.WhentheSunstartsswallowingup(吞掉)theplanets,MarswilldisappearonlyhoursafterEarth.SoMarsonlyseemstobetheidealplacetospreadthehumanbeings.ItisalsoagoodlocationtosendhumansifeverthereisadisasteronEarth.Bysayingdisaster,Imeanasteroids(小行星)hittingandthingslikethat.
IfwehumansdonotwanttodisappearwhenEarthorMarsgetsswallowedup,wewillhavetogoandlivebeyondthesolarsystem.Butarethereanyplanetsoutsideoursolarsystempreparedtosupportlife?Astronomers’answeris:
“IfEarthcansupportlife,whycan’totherplanetsdothesametoo?AstronomershavealreadydiscoveredaJupiter(木星)-likeplanetorbitingaSun-likestar,sowhynotanEarth-likeplanetorbitingaSun-likestar?
Toachievethisgoalthough,manyotherproblemshavetobetakenintoconsideration.Howdowetransform(改造)adustyplanetlikeMarsintoonemoreorlesslikeourEarth?Howshouldwegoon?Thereisstillalongwaytogo.
小题1:The“Marstown”mentionedinthepassageis___________

A.aresearchbaseonMars.
B.anexperimentallabbuiltonEarth.
C.astrangeplaceonMars.
D.atownexistinginscientists’imagination
小题2:Wecanknowfromthepassagethatastronomersprobablythink____________A.itisimpossibletotransporthumanstootherplanets.B.theremaybeanEarth-likeplanetoutsidethesolarsystemC.humanswillmovetothenew-foundJupiter-likeplanetD.there’snoneedforhumanstomovebeyondthesolarsystem.小题3:WhywouldMarsonlybe

贺智平回答:
  小题1:B小题2:B小题3:C小题4:A小题5:D   略
最新更新
热门英语
PC端 | 移动端 | mip端
百百课(baibeike.com)汇总了汉语字典,新华字典,成语字典,组词,词语,在线查字典,中文字典,英汉字典,在线字典,康熙字典等等,是学生查询学习资料的好帮手,是老师教学的好助手。
声明:本网站尊重并保护知识产权,根据《信息网络传播权保护条例》,如果我们转载的作品侵犯了您的权利,请在一个月内通知我们,我们会及时删除。

邮箱:  联系方式:

Copyright©2009-2021 百百课 baibeike.com 版权所有 闽ICP备2021002822号-13