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爱疯英语
宇宙探索
主题语境26宇宙奥秘
爱疯英语
阅读理解
A
1.What can we know about methane according to
paragraph 2?
A.It might exist in many exoplanets.
It can be detected by Webb Space Telescope.
C.Many living things can't live without it.
D.Scientists haven't found its secrets completely.
爱疯英语
B细节理解题。根据第二段的最后一句“Unlike other
potential biosignatures such as oxygen,methane is one of
the few gases that should be readily detectable using the
Webb Space Telescope.(与氧气等其他潜在的生物特征
不同,甲烷是少数几种可以被韦伯太空望远镜探测到的
气体之一)”可知,甲烷是可以被韦伯太空望远镜探测
到的气体。B选项letected与detectable是同词复现,故
选B。
爱疯英语
2.Which of the following best explains "miniscule"
underlined in paragraph 3?
◇Small.
B.Special.
C.More.
D.Moderate.
爱疯英语
A词义猜测题。由题千中的miniscule:定位到第三段,
在地球上,绝大多数甲烷是由生命产生的:由湿地、
稻田或大型动物的尸体中的微生物产生的。甲烷也可
以通过人类活动产生,比如燃烧煤和石油等燃料,但
地球上非生物产生的甲烷是少的。首句中the vast
majority of.与划线词miniscule是呈相反的意思,由此
推知A选项smal川“小的”意思更为接近,故选A。
爱疯英语
3.What can we infer from Krissansen-Totton's words?
Methane can't show the sign of life in exoplanets fully.
B.It's likely that methane appeared later than oxygen did.
C.Scientists should prove methane existence in exoplanets.
D.Methane is most likely to appear in many exoplanets.
爱疯英语
A推理判断题。由题千中的Krissansen-Totton's
words定位到最后一段最后一句,但重要的是要注
意到,其他地方的行星环境可能是多样性的,可能
还有其他没有人考虑过的非生物甲烷产生过程,由
此可推知,甲烷不能完全显示系外行星上存在生命
的迹象,故选A。
爱疯英语
4.What can be a suitable title for the text?
A.Scientists have found life signs in exoplanets.
B.Methane is an important gas in the universe.
Methane may be the key to detecting alien life.
D.Scientists think it hard to find methane in
exoplanets.
爱疯英语
C文章出处题。根据文章大意以及第一段中
“Researchers said methane(甲烷)may be the first
detectable sign of life out of earth if discovered in the
atmosphere of a rocky planet orbiting in the habitable
Z0ne’.(研究人员表示,如果在围绕‘宜居带’运行的岩
石行星的大气层中发现甲烷,那么甲烷可能是第一个可检
测到的地球外生命的迹象)”可知,文章最适合的标题是
“甲烷可能是探测外星生命的关键”,故选C项。
B
爱疯英语
5.What do you know about space tourism?
A.It is nothing but a dream.
B.It's only in some stories.
It's a sightseeing tour in space.
D.It's a scientific exploratio