Mar is a coldest desert world.
It has pink skies, orange sunsets, deserts
and canyons. （峽谷）
Earth is a blue planet and Mars is a red planet.
It is red because it is covered by（被覆蓋） red soil（土壤） and rocks.
The soil is rich in（富含） iron（鐵）.
This makes Mars look like a red ball of iron.
Astronauts have never been to（從沒有去過） Mars.
But robot spacecrafts（航天器）have.
We can learn a lot from them.
Mars vs Earth
Mars and Earth are neighbors.
Like Earth, Mars has four seasons.
It has wind, clouds and storms.
Mars also has valleys（山谷）
and volcanoes（火山）.
Mars and Earth are different as well.
Mars doesn't have oceans, rivers and lakes.
All of its water has frozen into ice（結成了冰）.
Super high！
Mars has the highest mountain in the solar system（太陽系）.
This volcan is called Olympus Mons.
It is about three times（倍） as high as Qomolangma（珠穆朗瑪峰）.
It is a fact！
Mars looks red in the night sky.
Look up and see for yourself！
Word bank 詞彙
1、astronaut [ˈæstrəˌnɔt] 宇航員 名詞
2、desert [ˈdezərt] 沙漠 名詞
3、sunset [ˈsʌnˌsɛt] 日落 名詞
4、storm [stɔ:rm] 暴風雨 名詞
文章摘錄自21世紀學生英文報 小學