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(共16张PPT)
Unit9 Sea water and rain water
Writing: Let's save water！
新课：书，笔记本
准备：背U9单词(P68)
How can we save water

We can save water __________ ______________.
We can save water __________ __________________________.
We can save water by turning off a dripping tap.
by fixing
a dripping tap
by not washing vegetables under a
a running tap.


We can save water by not playing water games.
We can save water by taking a shower instead of a bath.
We can save water by not brushing teeth under a running tap.



use hands to wash clothes
use a washing machine to wash clothes
We can save water by using hands instead of using a washing machine to wash one or two clothes.
Which one is better for saving water
We can save water by using a washing machine instead of using hands to wash a lot of clothes.


a washing machine
wash face in a basin
wash face under a running tap
We can save water by washing face in a basin instead of under a running tap.

Which one is better for saving water
We can save water by washing face with the tap off instead of with the tap on.

a basin
脸盆

We can save water by not wasting water when we wash the cars.
We can save water by watering the flowers with
reused water (grey water).
reuse the water
brush teeth or wash faces.
use water to water plants and flowers.
We use water to flush the toilets and clean the houses.
we will have no water to drink.
we will have no water to brush teeth
or wash faces.
If there is no rain, we will not have any water to flush the toilets or to clean the houses.
If there is no rain, cooks and firemen will have no water to cook food or to put out fires.
If there is no rain, farmers will have no water to water crops and vegetables for us. All plants will die at last, and we will have no food to eat.
There is a lot of water on the Earth, but we can't use all of it. We can only use or drink a little water on the Earth.






by doing…/ by not doing…
Let’s save water!
Write a report on ‘saving water’
Let’s save water!
Water is everywhere around us. We use water to ...
If there is no rain, ...
Water is very important to all of us. We can't live without water. But water is very limited(有限的). So we should save water！
We can save water by …/ by not ...
Write a report on ‘saving water’
Homework:
1) 词汇词组卷U9Ex4；
2）小作文（至少45词）
3）巩固U9单词，明继续检查。

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