首页
登录
职称英语
At the first sight the planet Mars(火星)does not appear very welcome to any ki
At the first sight the planet Mars(火星)does not appear very welcome to any ki
游客
2024-01-19
26
管理
问题
At the first sight the planet Mars(火星)does not appear very welcome to any kind of life. It has very little oxygen and water, the temperature at night is below -50°C and winds of 100 miles per hour cause severe dust storms. However, the surface of the planet seems to show that water flowed across it some time in the past, and it is believed that there is enough ice at the poles to cover the planet with water if it melts. Although there is no life on the Mars now, some scientists think that there may have been some form of life long time ago. At that time, the planet had active volcanoes; the atmosphere was thicker and warmer; and there was water. In fact, in some ways the Mars may have been similar to the Earth, where life exists.
Some people believe that the Mars could support life in the future if the right conditions were produced. The first step would be to warm the planet using certain gases which trap the Sun’ s heat in the planet’s atmosphere. With warmth, water and carbon dioxide, simple plants could begin to grow. These plants could slowly make the Mars more suitable for living. It is estimated that the whole process might take between 100,000 and 200,000 years. In the meantime, people could begin to live on the planet in special closed environments. They would provide a lot of useful information about conditions on the Mars and the problems connected with living there. [br] Which is the best title for this passage?
选项
A、The Possibility of Life on the Mars
B、Future Conditions on the Mars
C、The Mars and the Earth
D、A Study of the Climate of the Mars
答案
A
解析
主旨大意题。通观全篇文章,作者讲述了在火星上生活的可能性。所以选项A为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3374730.html
相关试题推荐
[originaltext]Thesecretofalongandhappymarriageappearstobenotto
[originaltext]Thesecretofalongandhappymarriageappearstobenotto
[originaltext]W:Goodevening!WelcometoourTalkShowprogram.Ourguesttoda
[originaltext]W:HelloandwelcometoTrendUK.Creativeindustriesoftenattra
Athirdoftheplanet’slandisseverelydegradedandfertilesoilisbeing
Athirdoftheplanet’slandisseverelydegradedandfertilesoilisbeing
Athirdoftheplanet’slandisseverelydegradedandfertilesoilisbeing
Athirdoftheplanet’slandisseverelydegradedandfertilesoilisbeing
Athirdoftheplanet’slandisseverelydegradedandfertilesoilisbeing
Theinnervoiceofpeoplewhoappearunconsciouscannowbeheard.Forthefir
随机试题
WhydoestelevisioncarrymorenationaladvertisingthananyothermediuminPor
[originaltext]Kenyaisthethird-largestteaproducerintheworld.Almostall
关于钢筋混凝土预制桩加工制作,说法正确的是()。A.长度在10m以上的桩必须工
妊娠合并心脏病患者,第二产程处理措施不正确的是A.阴道助产 B.取膀胱截石位
《变电评价管理规定》:国网运检部每年对省公司管辖一类变电站抽查考核的数量不少于(
履行统一领导职责或者组织处置突发事件的人民政府在事后恢复与重建中的义务不包括(
下列不属于贷后检査范围的是()。A.对借款人的检查 B.对合同主体变更的
《义务教育法》的立法宗旨包含().A.发展基础教育 B.发展职业教育 C.
关于奥肯定律的含义和作用的说法,正确的有( )。A.奥肯定律揭示了经济增长和失
某公司息税前利润为1000万元,债务资金为400万元,债务税前利息率为6%,所得
最新回复
(
0
)