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
Now that man has actually landed on the surface of the moon, he has learned many new things about it. But one thing man knew bef
Now that man has actually landed on the surface of the moon, he has learned many new things about it. But one thing man knew bef
admin
2008-12-25
30
问题
Now that man has actually landed on the surface of the moon, he has learned many new things about it. But one thing man knew before he ever reached the moon was that there was no life on it.
There is no atmosphere (大气层) on the moon. The lack of air means that the moon is not protected from any of the sun’ s rays. The sun sends out heat and light radiation (辐射). Life on earth depends on heat and light. But the sun also sends out dangerous kinds of radiation. The earth’ s atmosphere protects us from most of them. On the moon, however, there is no atmosphere to stop the radiation. All the sun’ s rays beat down on the surface of the moon.
Because there is no atmosphere, the moon’ s surface is either extremely hot or extremely cold. As the moon circles around the earth, the side of it that is lighted up by the sun becomes very hot. The temperature there reaches more than 300 degrees Fahrenheit (华氏温度). This is hotter than boiling water. The hot lunar day lasts two weeks. It is followed by a night that is also two weeks long. At night the temperature drops to 260 degrees below zero. This is more than twice as cold as temperatures reached at the earth’ s South Pole. Under these conditions, no form of life that we know of here on earth could exist on the moon.
Which of the following would be the best title for this text?
选项
A、Why is there no air on the moon?
B、Why is there no life on the moon?
C、Why is the moon hotter than the earth?
D、Why is the moon colder than the South Pole?
答案
B
解析
主旨题。题干意为“下列哪一项是本篇文章最好的题目”。通过阅读文章,我们可知本文一开始指出月球上没有大气层,所以不能阻挡来自太阳的辐射,接着说月球上的温差变化太大,都是为了解释月球不适合人类居住的原因。所以本题的正确答案为B。
转载请注明原文地址:https://kaotiyun.com/show/bIAd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
WhenJohnRothasgotintothehydraulics(水力学)business18yearsagoheneverdreamedhe’dseehisworkuponthesilverscreen.
Medicalexpertshave【C1】______suspectedalinkbetweenthehealthofthemindandthehealthofthebody.Fromtimetotimerese
HelenSmith:WhatbetterwaytostartoffmysenioryearinhighschoolthanbyreadingsomethingIamentirelyfamiliarwit
WhydoesthegirldislikeAmericanTVprograms?
InBritain,peoplehavedifferentattitudestothepolice.Mostpeoplegenerally【C1】______themandthejobtheydo—althoughther
Thelawyerisapersonwithaveryspecialknowledgeofthelaw—boththecivilandcriminal.Becauseofthisknowledgethelawye
AGermantaxi-driver,FranzBussman,recentlyfoundhisbrotherwhowasthoughttohavebeenkilledtwentyyearsbefore.Whileo
Marysaidthatshe______thecoldforseveraldaysandstillcouldn’tgetridofit.
近段时间,学校要不要组织学生集体春游成为社会的讨论热点。请你根据下面表格中的信息,并补充其它理由,用英文写出一篇针对学生要不要集体春游的短文。注意:1.词数100词左右,开头已为你写好;Recentlywe’vehad
Beautyhasalwaysbeenregardedassomethingpraiseworthy.Almosteveryonethinksattractivepeoplearehappierandhealthier,
随机试题
Access2010中,窗体可以用来帮助用户查看或输出存储在数据库中数据的信息,但通过窗体用户不可以输入数据记录。
关于准直器的选择A.低能准直器B.高能准直器C.平行孔准直器D.针孔准直器E.扩散型准直器99mTc显像选择
中国山东某公司于2003年6月14日收到甲国某公司来电称:“×设备3560台,每台270美元CIF青岛,7月甲国×港装船,不可撤销即期信用证支付,2003年6月22日前复有效。”中国山东公司于2003年6月17日复电:“若单价为240美元ClF青岛,可接受
关于债券基础利率,以下说法错误的是( )。
下列经营者中,不属于营业税纳税人的是( )。
为恶意和憎恨所局限的观察者,即使具有敏锐的观察力,也只能见到表面的东西;而只有当敏锐的观察力同善意和热爱相结合,才能探到人和世界的最深处,并且还有希望达到最崇高的目标。由此可以推出()。
孙儿孙女的平均年龄是10岁,孙儿年龄的平方减去孙女年龄的平方所得的数值,正好是爷爷出生年份的后两位,爷爷生于上个世纪40年代。则孙儿孙女的年龄差是()岁。
Americanwomenexperienceagreat【C1】______oflifestyles.A""typical""Americanwomanmaybesingle.Shemayalsobedivorcedo
"Wanted"postersaren’tseenmuchthesedaysoutsideofWesternfilms.ButCanadiangovernmentofficialsarecrowingovertheir
A、Theyaremorepessimisticthanwomen.B、Theyaremoreapttogetaheartattack.C、Theyareweakerunderthepressureofgrowi
最新回复
(
0
)