1) In the north of China, the four seasons are distinguishable.
2) I like summer best because flowers bloom luxiously.
3) With the blooming flowers, summer provides us with a colourful decoration.
4) Spring is my favourite season because it is the beginning of a year.
5) Spring is a season full of energy, in which you can see trees turn green overnight.
6) Autumn is a harvest season for farmers.
7) In my hometown, winter is a season of snow and it’s freezing every day.
8) The chimate at present is much worse than before.
9) Great changes of environment have taken place during the recent years in my city.
10) The exhuast gas from factories and cars is a great threat to our environment.
11) The temperature in summer every year is getting warmer and warmer.
12) In autumn, when the weather is fine, people in my hometown often climb hills.

1 在中国的北方，四季分明。
2 我最喜欢夏天，因为夏天百花齐放。
3 有了盛开的各种花，夏天带给我们的是多彩斑斓的世界。
4 我特别喜欢春天因为它是一年的开始。
5. 春天是一个充满生机的季节，在春天里你可以看到树木在一夜之间变成绿色。
6 对于农民，前天是一个收获的季节。
7 在我的家乡，冬天是冰雪的世界，那里每天都结着冰。
8 现在的气候比以前差了很多。
9 在近几年里，我所在的城市环境发生了巨大的变化。
10 工厂排放的废弃和汽车尾气对我们的环境是巨大的威胁。
11 冬天的气温一年比一年升高。
12 在秋天，当天气好的时候，人们经常去爬山。