为了唤起全球青少年一代的环保意识，世界卫生组织向全球发起了"如何保护环境"的建议征集活动，你以学校学生会主席的名义，发出了全员环保的倡议，并制作了如下图的海报：

请根据海报内容及以下写作要点写一份倡议书。要点如下：
（1）保护环境是我们中学生的职责；
（2）保护环境的具体措施；
（3）让我们都为地球母亲尽一份力。
注意：
（1）词数100左右；
（2）可以适当增加细节，以使行文连贯；
（3）开头与结尾已为你写好，不计入总词数。

Dear friends，
   Thank you!
Students' Union

【考点】提纲作文．

【答案】Dear friends，
Do you want to live in a beautiful world？So it is our duty to protect the environment.To reach this goal，we should keep the following in mind.
First，walking to school is a good way to reduce pollution.Second，we should plant trees every spring to protect the soil from being washed away.Third，it's also important to recycle everything useful.We should keep our school clean by picking up any litter.Finally，remember to turn off the water taps after finishing washing and turn off the lights when leaving the classroom.In a word，only when we form the good habit of environmental protection can we make the earth more beautiful tomorrow.
Let's take action to protect our mother---the earth now.Let's all do our bit for Mother Earth.
Thank you!
Students' Union