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
Have you ever dreamed of traveling in space? It was impossible a hundred years ago, nor was it 50 years ago. With the coming of
Have you ever dreamed of traveling in space? It was impossible a hundred years ago, nor was it 50 years ago. With the coming of
admin
2012-11-20
73
问题
Have you ever dreamed of traveling in space? It was impossible a hundred years ago, nor was it 50 years ago. With the coming of the Space Age, man’ s dream of visiting the moon has come true.
The journey to the moon has been the first step towards future explorations in space. The distance between the moon and the Earth is very short indeed when compared with the distances between Earth and the other planets. Mars, the nearest planet to Earth is of miles away ! Traveling to the planets or travels between planets will be man’ s next aim. Such travels will be more difficult than the trip to the moon and certainly more exciting.
Recently, two American unmanned spacecraft, Vikings 1 and 2, landed on Mars in an attempt to discover whether that planet had any life on it. So far the presence of life on Mars has neither been proved nor ruled out. Russian space-probes have discovered that the surface of Venus is so hot that it is almost certain that there is no life there. Also the atmosphere of Venus is extremely, dense and the pressure is nearly a hundred times greater than the pressure of the Earth’s atmosphere.
Scientists believe that in the future, space stations can be built in space. These stations can act as stop-over points in space. Spacecraft can refuel at these stations and get their supply of air, food and water.
Spaceships of the future will be bigger and faster. They will be able to carry passengers for trips to the moon or planets.
Man may in the future find planets which have the same conditions as those we have on Earth, and make them his home. However such a possibility is still in the distant future. At the same time, Man should realize that the Earth will be his only home for a long time and begin to value and care for it.
Which of the following planets is NOT mentioned ?
选项
A、Venus
B、Jupiter
C、Earth
D、Mars
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/LHeC777K
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
Itwastheworsttragedyinmaritime(航海的)history,sixtimesmoredeadlythantheTitanic.WhentheGermancruiseshipWilhelm
ThetraditionalAmericanThanksgivingDaycelebrationgoesbackto1621.In【61】yearaspecialfeastwaspreparedinPlymouth,Ma
Itisnaturalthatyoungpeopleareoftenuncomfortablewhentheyarewiththeirparents.Theysaythat【61】parentsdon’t【62】them
Itisnaturalthatyoungpeopleareoftenuncomfortablewhentheyarewiththeirparents.Theysaythat【61】parentsdon’t【62】them
Myhusbandandchildrenfeelveryhappytolivehere.Theycan’tseethatweliveonadirtystreetinadirtyhouseamongpeopl
Overayearago,JamelBalhi,aFrenchyoungadventurer,madeapromiseinParistohisChinesefriendfromShanghaihewould【21
Theclock______andwerealizeditwastwoo’clock.
Normallyastudentmustattendacertainnumberofcoursesinordertograduate,andeachcoursewhichheattendsgiveshimacr
Theauthorisanaggressive,brilliantandliterateastronomer.Thisvastlyentertainingbookhasasimplemannerwithcomplexi
根据中文提示,将对话中缺少的内容写在线上。这些句子必须符合英语表达习惯。打句号的地方,用陈述句;打问号的地方,用疑问句。提示:A1ice对医生说自己感到身体不适。今天早上起得很早做功课,摔在地板上。在那之前,曾感到紧张,并有时眼睛疼。医生说不要担
随机试题
《故事新编》是鲁迅先生以________为题材创作的一部短篇小说集。
处方书写中,缩写词“bid.”表示
A.削痂植皮术B.大张全厚皮片移植术C.切痂自体微粒皮移植异体皮覆盖术D.切痂后整张中厚自体皮肤移植术E.脱痂植皮术
除麦冬、石斛外,下列不属于清暑益气汤药物组成的是
纳税人采取折扣销售方式销售货物的,如果销售额和折扣额在同一张发票上分别注明的,可按折扣后的余额作为销售额计算增值税;如果将折扣额另开发票,不论其在财务上如何处理,均不得从销售额中减除折扣额。()
面对近年来原材料、劳动力等价格上升的压力,我国沿海某服装出口企业,把生产环节转移到劳动力、土地等生产要素具有优势的内陆地区,并致力于产品研发、品牌设计和营销推广,从而大大提高了产品出口竞争力。该企业竞争力提高的因素有()。①调整经营战略,利用
社会生活的变化多样,使得任何一种规则体系都不能够不加变化地_________;反过来文明社会的错综复杂.也不能仅靠抽象原则与模糊观念来_________。填入画横线部分最恰当的一项是:
条件充分性判断:A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和(2)单独都不充分,但条件(1)和(2)联合起来充分D.条件(1)充分,条件(2)也充分E.条件(1)和(2)单独都不充分,条件(1)和(
Aisforalwaysgettingtoworkontime.Bisforbeingextremelybusy.Cisfortheconscientious(勤勤恳恳的)wayyoudoyo
Inalmostallchemical-processplants,heatis______byburningoffossilfuels—coal,oil,ornaturalgas.
最新回复
(
0
)