Question

【题目】We live on Planet Earth, the third planet from the sun. But think about this, what if we lived on the fourth planet from the sun—Mars? Earth and Mars both belong to the solar system. There are many things about them that are the same and different. Let’s compare them and think about how different things would be if we lived on Mars.

Facts			Earth		Mars
Orbit(轨道) around the sun			Moves at about 99,999 kilometers per hour Takes 365 days to make one trip around the sun Earth always keeps the same distance from the sun		Moves at 87,226 kilometres per hour Takes 687 Earth days to make one trip around the sun Mars is not always the same distance from the sun. It is 205,996,032 kilometres from the sun when it is closest. It is 249,448,320 kilometres from the sun when it is furthest away.
Seasons	Autumn		about 90 days		146 days
	Winter		about 90 days		160 days
	Spring		about 90 days		199 days
	Summer		about 90 days		90 days
Length of Day			24 hours		24 hours, 7 minutes
Gravity		A 45-kilogram person on Earth would feel 62% lighter in weight because there is less gravity at the Martian surface. That is about 17 kilograms.
Atmosphere				21% oxygen	95% carbon dioxide – no oxygen
Number of Moons				One	Two

【1】How many kilometers does Earth move every hour?

A．99,999. B．87,226. C．205,996,032. D．249,448,320.

【2】How many Earth days does it take Mars to make a trip around the sun?

A．365. B．322. C．687. D．1052.

【3】．On Mars and Earth, which season has the same length?

A．Spring. B．Summer. C．Autumn. D．Winter.

【4】A person feel lighter on Mars than on Earth because .

A．there is less gravity on Earth

B．there is less gravity on Mars

C．there is more oxygen on Earth

D．there is more oxygen on Mars

【5】The following facts are mentioned to compare Earth to Mars except .

A．Length of Day B．Numbers of Moons

C．Orbit around the sun D．Size of Earth and Mars

Answer 1

【答案】

【1】A

【2】A

【3】B

【4】B

【5】D

【解析】

试题分析：这篇短文主要介绍了关于地球和火球的知识。

【1】A细节理解题。根据文中Moves at about 99,999 kilometers per hour描述可知地球每小时移动99,999公里。故答案选A。

【2】A细节理解题。根据文中Takes 365 days to make one trip around the sun描述可知地球围绕太阳转一圈的时间是365天。故答案是A。

【3】B细节理解题。根据文中Seasons一栏可以看出地球和火星在夏天都有90天。故答案选B。

【4】B细节理解题。根据文中A 45-kilogram person on Earth would feel 62% lighter in weight because there is less gravity at the Martian surface.的描述可知：和地球上的人相比火星上的人感觉更轻，因为火星上的重力更少。故答案选B。

【5】D推理判断题。根据全文的描述，文中没有提到地球和火星的大小。故答案选D。