What can you see in the sky in the daytime？ The Sun！ It’s one part of the solar system.

The solar system is a family. It includes the sun and everything orbits around it. They are the eight planets， their moons and so on. Let’s have an amazing adventure through our solar system.

Tips：

include  包含

orbit  環绕

planet  星球

moon  卫星

I am the sun. I’m a burning ball of fire. I’m very big. I can even hold a million Earths. Lives on Earth depend on me. I give them warmth and light.

Tips：

hold  容纳

million  百万

lives  生命（life的复数）

Next， let’s meet the eight planets that orbit around the sun. Mercury， Venus， Earth and Mars are rocky planets， while Jupiter， Saturn， Uranus and Neptune are made of gas. Let’s have a look！

The Eight Planets：

Mercury  水星

Venus  金星

Earth  地球

Mars  火星

Jupiter  木星

Saturn  土星

Uranus  天王星

Neptune  海王星

I am Mercury. During the day， it is very hot on me. But I’m very cold at night.

I am Venus. I’m the same size as Earth， but I spin much more slowly. I’m the hottest and brightest planet in the solar system！

Tips：

spin  旋转

brightest  最亮的（bright的最高级，brighter是比较级）

I am Mars. I have big volcanoes. It is very cold on me. I have a very high mountain. I’m 3 times higher than Mount Everest.

Tips：

volcano  火山

times 介词表示倍数，这里表示3倍Mount Everest 珠穆朗玛峰

I am Jupiter. I’m the biggest planet and I spin the fastest. I’m the stormiest planet in the solar system.

Tips：

spin  旋转

fastest  最快的

（fast的最高级，faster是比较级）

stormiest  风暴最多的

（stormy的最高级）

I am Saturn. I’m the second largest planet after Jupiter. I have colourful rings that go round and round.

Tips：

ring  环

We are Uranus and Neptune. We are blue.