At the beginning of this unit, we watched a part of the video clip about the coming global water crisis. Now we will continue to watch more to see how serious it is, not only in Asia, Africa, but also in America. After viewing the video clip twice complete the following sentences according to what you have heard. Before you start, getting to know the following words might be helpful.

Topic discussion：

1. Ways to conserve clean water supplies.

you should:

1) discuss the water situation in the world and in China;

2) explain why water is going to be the greatest challenge facing mankind in the 21st century;

3) propose ways to help conserve water;

2. Ways to Avoid Internet Addiction.

you can:

1) talk about your own life in the virtual world and, if any, your digital detox experience;

2) discuss whether smartphones should or should not be banned in class

Directions: For this part, you are allowed 30 minutes to write a short essay. You should start your essay with a brief description of the picture and then express your views on the importance of water conservation.You should write at least 120 words but no more than 180 words.

                                    On Water Conservation

In the picture above,_________________________________________________.There is no doubt that if we waste water today,we will have no water tomorrow.

As one of the most valuable natural resources,water is of great importance to us.Therefore, we should raise awareness of cherishing water and start saving water from now on.The reasons are as follows.Firstly,____________________________________________________________________.Secondly,_________________________________________________________________________.Lastly,____________________________________________________________________________.

There is no excuse for wasting water.If we still want to avoid water shortage in the coming future,we must start cherishing water right now.

阅读有关蚂蚁森林的英语介绍，根据段落写作基本要求进行模仿写作，介绍你参与的或知道的有关水的公益活动（目标、方式、成果、意义）。写作中注意主题句、辅助句和结尾句的写法，以及段落扩展的三种基本方法。