首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Of all the problems facing modern astronomers, perhaps the most fascinating is: "can intelligent life exist【S1】______?" Since th
Of all the problems facing modern astronomers, perhaps the most fascinating is: "can intelligent life exist【S1】______?" Since th
admin
2012-11-22
58
问题
Of all the problems facing modern astronomers, perhaps the most fascinating is: "can intelligent life exist【S1】______?" Since the earth is an unimportant planet moving round an unimportant star, it would be a pride on our part to suppose that we are the only intelligent beings in the universe. But to obtain proof is difficult.
The main trouble is that our neighbor worlds, the bodies in the Solar System appear to be unsuitable for advanced life-forms. The Moon may be【S2】______out at once; it has hardly any atmosphere. Venus is little better; the surface temperature is extremely high and the【S3】______is mostly carbon dioxide. Mars with a very thin atmosphere and a severe【S4】______of water may well support simple plant life but there seems no hope of finding animals, while the attractive Martians of the story-tellers have long since been given up.
Of course this has not stopped the flow of bright ideas for【S5】______with the supposed people on Mars. In the early nineteenth century the great mathematician Gauss suggested planting tree-patterns in Siberia, so that the Martians would see them and reply【S6】______Following up this idea, the Austrian scientist Karl Littrow proposed digging very wide ditches in the Sahara, triangular in pattern, and then filling them with petrol or some such substance so that, 【S7】______lit, the ditches would present Martian observers with a "flaming triangle"【S8】______would show the existence here of intelligent minds. Even better were the plans of Charles Cros, a French writer of the eighteen-seventies, who wanted to build a large mirror to reflect the sun’s rays and concentrate them on the surface of Mars, 【S9】______ making a vast burning-glass. By swinging the mirror around, Cros explained, it would be practicable to write words in the Martian deserts simply by burning the sand. For many years he bombarded the French government with literature about this plan and was very【S10】______when no official interest was shown.
A. ruled B. communicating C. sufficiency D. elsewhere
E. which F. disappointed G. carried H. suitably
I. atmosphere J. although K. thereby L. excitedly
M. shortage N. surface O. when
【S8】
选项
答案
E
解析
转载请注明原文地址:https://kaotiyun.com/show/GLw7777K
0
大学英语四级
相关试题推荐
Therewasa______growthofthelightindustriesduringthewar.
Duringthepressconference,thereporters______someofthepresident’sstatement.,
Whatdeterminesthekindofpersonyouare?Whatfactorsmakeyoumoreorlessbold,intelligent,orabletoreadamap?Allof
Whatdeterminesthekindofpersonyouare?Whatfactorsmakeyoumoreorlessbold,intelligent,orabletoreadamap?Allof
Whatdeterminesthekindofpersonyouare?Whatfactorsmakeyoumoreorlessbold,intelligent,orabletoreadamap?Allof
Whatdeterminesthekindofpersonyouare?Whatfactorsmakeyoumoreorlessbold,intelligent,orabletoreadamap?Allof
Theyweremostinterestedincheckingtheaccuracyoftheorbits______recordedbymodem-dayastronomers.
Itisnevertooearlyforyoutolearnaboutthevalueofmoneyasateenager.Manyteenshaveno【B1】______whatittakestoearn
Itisnevertooearlyforyoutolearnaboutthevalueofmoneyasateenager.Manyteenshaveno【B1】______whatittakestoearn
Itisnevertooearlyforyoutolearnaboutthevalueofmoneyasateenager.Manyteenshaveno【B1】______whatittakestoearn
随机试题
马克思曾指出:在欧洲,预兆资产阶级社会到来的伟大发明是()
肝硬化大出血诱发肝性脑病的主要机制是
女性,36岁,1d前出现发热、腹泻,为黏液脓性鲜血便,有里急后重感,该患者可能是
传染病病人能排出病原体的整个时间称为()
蒙医的基础理论内容包括( )。
24h尿液标本中加入浓盐酸的目的是
工程质量统计分析方法中,因果分析图的主要作用是()。
下列关于国际收支差额分析的说法,错误的是()。
若“所有灵长类动物大脑可能都具有额叶皮质”为真,则以下哪项一定为真?
为了维持秩序,有关部门偷拍违法行为,但同时侵犯了隐私权,谈谈你的看法。
最新回复
(
0
)