Question

There are eight planets that travel around the sun. They are much smaller than the sun and stars which are shining balls of hot gases. The sun and stars produce their own heat and light. The planets do not produce heat or light. They get almost all of their heat and light from the sun. Each planet has features that make it unique.

*Neptune's surface temperature is about 370 °F below zero! It's the farthest from the Sun.

*Jupiter is the biggest of the eight planets, It's about 1000 times bigger than Earth,

* Uranus rotates while lying on its side. It takes 84 Earth years to orbit the sun(绕太阳转）

*There are many rings round Saturn. It takes Saturn l0,759 Earth days to orbit the sun.

1.The difference between a star and a planet is that________.

A.a star is much smaller than a planet

B.a planet is a shining ball of hot gases

C.planets produce most of their own heat and light while stars don't

D.planets get heat and light from stars while stars produce their owns

2.What's TRUE about Uranus?

A.It's the sixth planet from the sun.

B.It needs more time to orbit the sun than Saturn.

C.Its temperature is about-370"F.

D.It rotates in the same way as other planets

3.The underline word "ring”means________.

A.戒指 B.空间站 C.行星环 D.圆形

4.It's possible you read this article in a________class.

A.geography B.biology C.Physical-Education D.chemistry

Answer

1.D

2.B

3.C

4.A

【解析】

本文介绍了八大行星以及它们与恒星的区别。分别介绍了每颗行星的独特的特征。

1.细节理解题。题干问：恒星和行星的区别在于_______。根据“The sun and stars produce their own heat and light.”太阳和星星产生它们自己的热和光。以及句子“They get almost all of their heat and light from the sun.”它们几乎所有的热量和光都来自太阳。可知，行星从恒星获得热量和光，而恒星产生自己的能量。故选D。

2.细节理解题。结合所给的图片可知，天王星是离太阳第七颗行星。因此A不对；根据“Neptune's surface temperature is about 370 °F below zero!”海王星的表面温度大约是零下370华氏度！因此C不对；根据“Uranus rotates while lying on its side.”天王星侧卧旋转。与其他行星旋转的方式不同。因此D不对；根据“It takes 84 Earth years to orbit the sun(绕太阳转）.”天王星绕太阳公转需要84个地球年。以及句子“It takes Saturn l0,759 Earth days to orbit the sun.”土星绕太阳公转需要10, 759个地球日。即：84个地球年相当于30,660个地球日。可知，天王星需要比土星更多的时间环绕太阳运行。可知，说法正确的是B。

3.词意猜测题。根据“There are many rings round Saturn.”土星周围有许多环。观察所给的图片以及选项可知，这里的ring应该是“行星环”的意思。“行星环”是指围绕着行星运转的宇宙尘和小颗粒形成扁平盘状的区域。故选C。

4.细节理解题。本文介绍了有八颗行星围绕太阳运行。行星和恒星是不同的。分别介绍了每颗行星的独特的特征。本文与地里有关，因此在地里课上能学到。故选A。