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
专升本
On a clear night you can see many stars in the sky. These stars are millions of miles away. Are there living things on any of th
On a clear night you can see many stars in the sky. These stars are millions of miles away. Are there living things on any of th
admin
2011-04-26
49
问题
On a clear night you can see many stars in the sky. These stars are millions of miles away. Are there living things on any of the stars? People have always thought about this question. They could not find the answer before now. Today scientists know more about space than ever before. Some machines can help them look for the answer.
How will scientists do this? People can’ t go to the stars. The stars are far away. A person would take hundreds of years to the next star in a spaceship. So scientists are sending out radio signals. These signals travel in space at the speed of light. At that speed, radio signals will take 25 years to reach the next star. The signals ask "Is there anyone out here?". Living things in space must have machines to hear the signals. We will not get an answer to our signals for more than 50 years. However, scientists are already listening. Someone from space may be trying to send signals to us, too.
Scientists also have sent large telescopes into space. A telescope can make things look larger. The telescopes are going around the earth. They are looking for life on other worlds. In the next few years we may get an answer to the question, "Is there life in space.
When you look into a telescope, things look ______.
选项
A、longer and larger
B、longer and nearer
C、smaller and farther
D、smaller and nearer
答案
A
解析
文章第三段第二句的意思是:天文望远镜使物体看起来更大。
转载请注明原文地址:https://kaotiyun.com/show/75qC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Therestofhislifeis______tothecauseofinternationalexchangeofvisitingscholars.
WhendidFather’sDayofficiallybegintohavenationalpopularity?WhichstatementisTRUE,accordingtothispassage?
Thefirstsailorpretendedtobeillbecausehewantedto______.Thepatientsfeltbetterquicklybecause______.
Insomecountries,______iscalled"equality"doesnotreallymeanequalrightsforallpeople.
Workersinthefinearts______thoughtsandfeelingsthroughtheircreativeworks.
Isit______youwerebornthatdecidesyournationality?
HolidaycelebrationsintheUnitedStatesoften______.TheWebster’sare______.
LincolnisregardedasagreatPresidentpartlybecauseTheword"something"inthefollowingchoiceA),"things"inB)andC),and
Skillsaretheactivitiesthatapersondoeswell.Whatthingsareyougoodatdoing?Everyonehasmanyskills.Sometimesitis
Largemoderncitiesaretoobigtocontrol.Theyimposetheirownlivingconditionsonthepeoplewhoinhabitthem.City-dweller
随机试题
血中激素的浓度极低,但生理作用却非常明显,这是因为
治疗胆绞痛最好选用
菟丝子、沙苑子的共同功效是
现时中土地的使用、支配权要受到多方面的制约,其中政府的城市规划属于()方面的制约。
U有限责任公司有两位投资者,每人各出资20万元。两年后,为扩大经营规模,该公司打算吸收新的投资者,将注册资本增加到60万元。新投资者出资额为25万元,同时规定新投资者享有1/3的股份,对此会计应确认资本公积贷方为5万元。()
需要办理注销登记的情形包括( )。
2018年7月1日,人民法院裁定受理了甲公司的破产申请,并同时指定了管理人。在该破产案件中,存在下述情况:(1)2017年9月1日,甲公司与A公司签订买卖合同,甲公司从A公司处购买100万元的原材料。同日,双方签订一份抵押合同,甲公司以其机器设备向A公司
下列关于人力资源预测的说法不正确的是()。
1.在某文件夹中存有文档WD02A.DOC,其内容如下:[文档开始]高校科技实力排名由教委授权,uniranks.edu.cn网站(一个纯公益性网站)6月7日独家公布了1999年度全国高等学校科技统计数据和全国高校校办产业统计数据
Forlaymenethnologyisthemostinterestingofthebiologicalsciencesfortheveryreasonthatitconcernsanimalsintheirno
最新回复
(
0
)