4．图示作文：仔细观察下列三幅图片，展开合理想象，写一篇短文．
提示词：rope 绳子 broadcast 宣传 call on 号召 make contributions to 为…做出贡献
要求：（1）话题作文或图示作文任选其一．
（2）词数在80～100词之间．
（3）要求字迹工整，语法正确，意思连贯，合乎逻辑，可适当发挥．
Saving Water
By watching the three pictures above，we can see that there is less and less underground water as the rope of the well becomes longer and longer．
We all know that water is important for us．We can't live without it．But we are short of drinking water now．As middle school students，what should we do to save water？
First，we are supposed to volunteer to broadcast the importance of saving water to the public．It's necessary for us to call on people to save water．
Second，we should do everything we can in our daily life．For example，we must turn off the tap as soon as we finish using it．After washing vegetables，we can use it to water the flowers．After washing faces，it's better to use it to clean the floor．
In a word，everyone should make contributions to saving water so that we won't see that the last drop of water is our tears．
Let's work together to save water!．
