假定你是学生李华，世界地球日（ Earth Day）即将到来，请你代表学校学生给世界环境保护组织写一封有关"环境保护"的倡议信。内容包括：
1.环境现状；
2.提出建议；
3.倡议和期待。
注意：
1.词数80～ 100，短文的开头和结尾已给出，不计入总词数；
2.可以适当增加细节，以使行文连贯。
Dear Sir or Madam，
    Earth Day is coming，so I am writing this letter to say something about our environment.
    ----------
    Best wishes.
Yours ，
Li Hua

【考点】书信类．

【答案】Dear Sir or Madam，
Earth Day is coming，so I am writing this letter to say something about our environment.
As we all know，the earth is in bad condition.In some places，the air and water pollution is so serious that it causes many dejye.aihs.At the same time，many animals and plants are in danger because of the destruction of their habitats.
Luckily，we human beings can do a lot to improve the condition.First of all，not only should we choose public transportation instead of private vehicles，but we also need to apply energy-efficient equipment.In addition，we can pick up rubbish whenever we find it.What's more，we are supposed to call on more people to take action and make every day Earth Day.
With Earth Day approaching，firmly advocate everyone to care about the planet we live on.
Best wishes.

Yours ，
Li Hua