Where does the frost co 600字高中英语作文
After a cold night,you will find frost on cars,trees,grass -- nearly on everything in the morning. Where does the frost come from?
Frost comes from the water in the air.Air often carries water in the form of water vapor.In this form,water molecules move around in the air. When the air becomes very cold,the molecules will stay together and form frozen water crystals. We all these water crystals . We call these water crystals frost.
How did kangaroo get it
Kangaroo live everywhere in Australia. It is a national symbol of Australia . How did this lovely animal get its name?
In the 18th century when James Cook, a famous British explorer, was in Australia, he saw the animal for the first time. He asked a local man what it was in English. The man answered in therir language, "Kangaroo."It meant"I don't understand you." But Cook thought it was the name of the animal.The name "kangaroo"has been used since then.
