“Tiny drops of water could collect inside,” he said. “If there are gases coming out, they could provide energy for a whole range of bacteria. A cave is also a protection from radiation; the surface of Mars is exposed to high levels of space radiation.
The caves probably formed when tube-shaped lava flows(管状岩浆流) spread across the planet long ago. The outside of the tubes cooled,forming solid walls, while something hotter inside allowed the remaining lava to flow out, forming caves.”
1. What does the passage mainly talk about?
A. How the caves were formed on Mars.
B. How scientists found these caves on Mars.
C. Caves on Mars may be full of hot air or a sign of life.
D. Scientists have completely recognized the surface of Mars.
2. We can learn from the passage that .
A. water has already been found on Mars
B. the scientists found all the caves at night
C. it is certain that there is life in these caves
D. the surface of Mars is bitterly cold,radiation-soaked and dry
3. According to the passage,Dr. Clarke was so excited because .
A. such caves could provide energy for life
B. they had finally found the caves on Mars
C. such caves would be perfect places to hunt for life
【2016届高考英语二轮复习阅读理解一百四十集选练:(17)】相关文章:
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (36)
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(37)附答案
★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练:第19组(含解析)
★ 湖南省长沙县实验中学2016届高三英语二轮复习书面表达复习重点话题指导专题20 校园学习话题指导(学生版)
★ 2017届高考英语二轮复习大题冲关秘籍完形填空之夹叙夹议文:应试策略(含解析)
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (25)
★ 【课堂新坐标】2017届高考英语(通用版)二轮复习短文改错专题训练:训练3 短文改错(Ⅲ)(含解析)
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(24)附答案
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(21)附答案
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21