21、请以The Seasons为题，有条理地用英语介绍一下四季给你的印象和感受。

　　Four Seasons

　　There are four seasons in a year. They are spring，summer，fall and winter. I like spring. It is warm. It often rains. I can plant trees and flowers in spring. The spring is green. Summer is very hot. I can swim in the river. Fall is a good season. It is nice. I can fly kites in fall. I can eat many apples，too. Winter is cold. I wish I can play with snow and make a snowman in Heyuan. Because it doesn’t snow in our city.

　　I love all the seasons, because they are nice.

　　四季

　　一年有四个季节。它们是春天，夏天，秋天和冬天。我喜欢春天。春天很暖和。春天经常下雨。春天我可以种树和种花 。春天是绿色的。夏天很热。我可以在河里游泳。秋天是一个很好的季节。它很美。我可以在秋天放风筝。还可以吃很多苹果。冬天很冷。我希望我可以在河源玩雪和堆雪人，因为我们的城市不下雪。

　　我爱所有的季节，因为它们都会美。