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C
Mars is the fourth planet from the sun. It is 141 million miles away from the sun. A year on Mars is 687 earth-days long. One day is about the same as on Earth: 24 hours long.
Mars is about half the size of Earth. Because Mars is smaller than Earth, and its gravity is also less. If you weigh 100 pounds on Earth, you will weigh about 38 pounds on Mars.
Mars' surface looks like a red desert. There are mountains, canyons(峡谷), volcanoes(火山), and so on. It is a dry planet without any liquid water. It does have ice caps(冰盖) at its north and south. Some of this ice is frozen carbon dioxide(二氧化碳).
Evidence shows that Mars once had rivers, streams, lakes, and maybe even an ocean. Scientists guess that there once was water on the surface of Mars that created these. Today the only water on Mars is either frozen in the ice caps or underground.
Mars has mountains that are much higher than the mountains on Earth. Olympus Mons, the biggest volcano in the whole solar system, stands 17 miles tall! Mars also has bigger and deeper canyons than Earth's. Some of these are sixty miles long and five or six miles deep. How amazing!
(
A. A day on Mars is much longer than on Earth.
B. A year on Mars has 365 Earth days.
C. A day on Mars is about the same length as on Earth.
D. A year on Mars is shorter than on Earth.
(
A. In the atmosphere around Mars.
B. In the form of liquid in the ocean.
C. Frozen in ice caps or underground.
D. In rivers and lakes on the surface.
(
A. It is a big canyon on Mars.
B. It is located on Earth.
C. It is shorter than the highest mountain on Earth.
D. It is the biggest volcano in the solar system
Mars is the fourth planet from the sun. It is 141 million miles away from the sun. A year on Mars is 687 earth-days long. One day is about the same as on Earth: 24 hours long.
Mars is about half the size of Earth. Because Mars is smaller than Earth, and its gravity is also less. If you weigh 100 pounds on Earth, you will weigh about 38 pounds on Mars.
Mars' surface looks like a red desert. There are mountains, canyons(峡谷), volcanoes(火山), and so on. It is a dry planet without any liquid water. It does have ice caps(冰盖) at its north and south. Some of this ice is frozen carbon dioxide(二氧化碳).
Evidence shows that Mars once had rivers, streams, lakes, and maybe even an ocean. Scientists guess that there once was water on the surface of Mars that created these. Today the only water on Mars is either frozen in the ice caps or underground.
Mars has mountains that are much higher than the mountains on Earth. Olympus Mons, the biggest volcano in the whole solar system, stands 17 miles tall! Mars also has bigger and deeper canyons than Earth's. Some of these are sixty miles long and five or six miles deep. How amazing!
(
C
)24. What can we learn about the day and year on Mars?A. A day on Mars is much longer than on Earth.
B. A year on Mars has 365 Earth days.
C. A day on Mars is about the same length as on Earth.
D. A year on Mars is shorter than on Earth.
(
C
)25. Where is the water on Mars now according to the passage?A. In the atmosphere around Mars.
B. In the form of liquid in the ocean.
C. Frozen in ice caps or underground.
D. In rivers and lakes on the surface.
(
D
)26. Which of the following statements is TRUE about Olympus Mons?A. It is a big canyon on Mars.
B. It is located on Earth.
C. It is shorter than the highest mountain on Earth.
D. It is the biggest volcano in the solar system
答案
24.C 25.C 26.D
解析
【分析】
本题为英语阅读理解细节题，解题思路是：针对每道题的题干关键词，快速定位原文对应内容，将选项与原文信息逐一比对，排除错误选项后选出正确答案。
【解析】
24. 题干关键词为“day and year on Mars”，定位原文第一段最后一句“One day is about the same as on Earth: 24 hours long.”，可知火星一天和地球差不多长；火星一年是687地球日，比地球的365天更长。选项A（火星一天更长）、B（火星一年365天）、D（火星一年更短）均错误，故选C。
25. 题干关键词为“water on Mars now”，定位原文第四段最后一句“Today the only water on Mars is either frozen in the ice caps or underground.”，对应选项C；选项A（大气中）、B（液态海洋）、D（表面河流湖泊）均与原文不符，故选C。
26. 题干关键词为“Olympus Mons”，定位原文第五段“Olympus Mons, the biggest volcano in the whole solar system, stands 17 miles tall!”，对应选项D；选项A（峡谷）、B（在地球）、C（比地球最高山矮）均错误，故选D。
【答案】
24.C 25.C 26.D
【知识点】
英语阅读理解、细节理解题
【点评】
本题为科普类阅读理解，考查对原文细节信息的定位与辨析能力，题目难度较低，只要能精准找到原文对应内容即可选出答案，适合巩固基础阅读技巧的学生练习。
【难度系数】
0.8
本题为英语阅读理解细节题，解题思路是：针对每道题的题干关键词，快速定位原文对应内容，将选项与原文信息逐一比对，排除错误选项后选出正确答案。
【解析】
24. 题干关键词为“day and year on Mars”，定位原文第一段最后一句“One day is about the same as on Earth: 24 hours long.”，可知火星一天和地球差不多长；火星一年是687地球日，比地球的365天更长。选项A（火星一天更长）、B（火星一年365天）、D（火星一年更短）均错误，故选C。
25. 题干关键词为“water on Mars now”，定位原文第四段最后一句“Today the only water on Mars is either frozen in the ice caps or underground.”，对应选项C；选项A（大气中）、B（液态海洋）、D（表面河流湖泊）均与原文不符，故选C。
26. 题干关键词为“Olympus Mons”，定位原文第五段“Olympus Mons, the biggest volcano in the whole solar system, stands 17 miles tall!”，对应选项D；选项A（峡谷）、B（在地球）、C（比地球最高山矮）均错误，故选D。
【答案】
24.C 25.C 26.D
【知识点】
英语阅读理解、细节理解题
【点评】
本题为科普类阅读理解，考查对原文细节信息的定位与辨析能力，题目难度较低，只要能精准找到原文对应内容即可选出答案，适合巩固基础阅读技巧的学生练习。
【难度系数】
0.8
