《2025年春如金卷七年级上册组合阅读160篇》

阅读理解 B
体裁：说明文
主题：火星
词数：223
难度：★★★★
用时：7 分钟
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. A day on Mars is about as long as a day on Earth: 24 hours.
Mars is about half the size of the Earth. Because Mars is smaller than the Earth, its gravity is less. If you weigh 100 pounds on Earth, you'd weigh about 38 pounds on Mars.
Mars' surface looks like a red desert. There are mountains, canyons (峡谷), volcanoes and so on. It is a dry planet without any liquid water. But it does have ice caps (冰盖) at its north and south. Some of this ice is frozen carbon dioxide.
Evidence shows that Mars once had rivers, streams, lakes, and maybe even an ocean. Scientists guess that there was once 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. They 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 canyons that are bigger and deeper than those on Earth. Some of these are sixty miles long and five or six miles deep. How amazing!
(B) 1. How long is a year on Mars?
A. About one year on Earth. B. Nearly two years on Earth.
C. More than three years on Earth. D. About four years on Earth.
(C) 2. According to the passage, the gravity on Mars is about ______ as strong as it's on the Earth.
A. four fifths B. three fifths C. two fifths D. one fifth
(A) 3. What does the surface of Mars look like?
A. A red desert. B. Liquid water.
C. The surface of Earth. D. The surface of the ocean.
(D) 4. Which of the following is TRUE according to the passage?
A. Mars has ice caps at its east and west.
B. Mars never had rivers or lakes.
C. Mars is twice the size of the Earth.
D. Mars is 141 million miles from the Sun.
(B) 5. What's the best title for the passage?
A. The Earth Is Different from Mars
B. The Fourth Planet from the Sun — Mars
C. Olympus Mons on Mars
D. The Gravity on Mars

答案： B C A D B