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文章中提到了哪几方面？
Save water
Water is useful. We drink water and use water to
clean things every day. In many places, there is
not much water. We should not waste water. We
should reuse and save it.
1.What can we use the water to do?
2.Why should we save water ?
3.What should/shouldn’t we do to save water?
Most of our energy comes from coal and oil. There is not much coal or oil on Earth. We should save energy. We should not drive so much because cars use a lot of energy.
Save energy
come from=be (am/is/are) from
Let’s try
自读课文第69页，完成表格。
Save trees
Wood comes from trees. We use wood to make tables, chairs and many other things. We should not cut down too many trees because trees help keep the air clean.
Don’t use too much plastic
We use plastic to make bags and bottles, but too much plastic is bad for the Earth. We should not use too many plastic bags or bottles. We should use paper bags and glass bottles.
Let’s try
We have _________??homework to do every day.
2. He eats ________?sweets, so he has got a toothache.
3. Don’t use _________?plastic.
4. He's got __________questions to ask you.
5. We should not cut down __________ trees.
too many +可数名词的复数 too much + 不可数名词
Happy reading
Do some exercise
Culture time
Earth Day is on the 22nd of April.
World Environment Day is on the 5th of June.