假如你是校學(xué)生會(huì)主席，為了更好地保護(hù)環(huán)境，你代表學(xué)生會(huì)向全校學(xué)生發(fā)出倡議．請根據(jù)以下內(nèi)容，寫一份倡議書：
1．保護(hù)環(huán)境是我們的職責(zé)．
2．我們要養(yǎng)成環(huán)保的習(xí)慣：
（1）盡量步行上學(xué)或騎自行車上學(xué)；
（2）離開房間前關(guān)燈和其他電器；
（3）不隨地扔垃圾；
（4）節(jié)約用水．
3．發(fā)出環(huán)保的號召．
注意：1．詞數(shù)；100左右；2．可以適當(dāng)增加細(xì)節(jié)，以使行文連貫
參考詞匯：電器electrical appliance（可數(shù)名詞）
Dear friends，
As we can see，the environment around us is getting worse and worse．

Our life and health have been affected greatly．The earth is our home and we have the duty to take care of it，not only for ourselves but also for our future generations．（高分句型一）Fortunately，more and more people have become aware of this problem．Many effective measures have been taken to deal with it by the government．（提出倡議）
I think we should follow the following advice．First，go to school on foot or by bike as often as possible．Second，turn off the light and other electrical appliances before leaving the room．Third，never throw rubbish here and there．Fourth，save water．（提出建議）
It's time that we should do something to protect our environment．（高分句型二）Only by taking good care of our earth today will it be more beautiful tomorrow．（高分句型三）（發(fā)出號召）

Our life and health have been affected greatly．The earth is our home and we have the duty to take care of it，not only for ourselves but also for our future generations．（高分句型一）Fortunately，more and more people have become aware of this problem．Many effective measures have been taken to deal with it by the government．（提出倡議）
I think we should follow the following advice．First，go to school on foot or by bike as often as possible．Second，turn off the light and other electrical appliances before leaving the room．Third，never throw rubbish here and there．Fourth，save water．（提出建議）
It's time that we should do something to protect our environment．（高分句型二）Only by taking good care of our earth today will it be more beautiful tomorrow．（高分句型三）（發(fā)出號召）

Thank you!
The Students' Union．