Unit 7 Protect the earth 课件

课件29张PPT。Unit 7 Protect the earth
(Story Time)
Know your teacherProtect the earthPlastic pollutionProtect the earth AnimalNwaterWenergyE treesTland(土地)L air(空气)APlastic pollutionpplastic bags & plastic bottlesProtect the earth animalwaterenergy treesland(土地) air(空气)plastic pollutionProtect the earth animalwaterenergy treesland(土地) air(空气)plastic pollutionWhat problems are mentioned in the story?Listen and repeatSave(节约 )waterSave energySave treesDon't use too much plastic.______ comes from trees. 听录音，说出四段文本标题各是什么？能源Energy comes from ____ and _____. Protect the earthWoodcoaloilcoal
煤oil
油Water Read and judgeWater is useful，so we should not waste it. ( )
We use water to clean the things every day. ( )
There is much water in many places. ( )
We should not reuse the water. ( )
FFTT有用的浪费使用意同many。many 用于可数名词，much 用于不可数名词地方再利用How do we save water?Save water Water is useful(有用的). We drink water and use water to clean things everyday.
In many places, there is not much water.
We should not waste water. We should reuse(重复使用) and save it. Read and learnWhy should we save water?用直线画出原因(Why do we save water?)
虚线画出方法(How do we save water?)Save water
Water is useful.
We drink water and use water to clean things everyday.
In many places, there is not much water.
We should not waste water.

We should reuse and save it.
Reading time 插入本段录音 Energy Read and chooseMost of the energy comes from______.
A. water and soil. B. coal and oil.2. We should ____________ and we should not_______________.
save energy; drive so much
drive so much; save energy
( B )( A )How do we save energy?Read and learnWhy should we save energy?用直线画出原因(Why do we save energy?)
虚线画出方法(How do we save energy?)Save energy Most of our energy comes from coal and oil.
There is not much coal and oil on earth.
We should save energy. We should not drive so much because cars use a lot of energy.Save energy
Reading time 插入本段录音 Most of our energy comes from coal and oil.
There is not much coal and oil on earth.
We should save energy.
We should not drive so much because cars use a lot of energy.How do we save trees?Read and learnWhy should we save trees?用直线画出原因(Why do we save trees?)
虚线画出方法(How do we save tree?)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.Wood comes from trees.
We use wood to make tables, chairs
and many other thingsSelf-learningSelf-learningWe should not cut down too many trees.Why?砍下Self-learningWe should not cut down too many trees.Why?Because trees help keep the air clean(净化空气)Trees Fill in the blanks ________comes from trees. We use ________ to make tables, chairs and many other things. We _____________cut down ______________trees because trees help ____________________.Woodwoodshould notso manykeep the air cleanGroup-learning1. What do you know about plastic?Don't use too much plasticGroup-learning2.Listening and answer
What can we use plastics to make?
Should we use too much plastics?
Group-learningWhat can we use plastics to make?
Should we use too much plastics?
But too much plastic is bad for the earth.

We should not use too many plastic bags or bottles.
We use plastic to make bags and bottles.Group-learningWe should use paper bags and glass bottles.So what can we use? 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. Don't use too much plasticReading time 插入本段录音 Plastic Try to say with the given(所给的) wordsuse… to……
too much….is bad for…..
should not … too many….
should use….Reading time可以自己朗读课文，也可以和小组同学一起朗读。Save water
Water is useful.We drink water and use water to clean things everyday.
In many places, there is not much water.We should not waste water. We should reuse and save it.
Save energy
Most of our energy comes from coal and oil. There is not much coal and oil on earth.We should save energy. We should not drive so much because cars use a lot of energy.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 bootles. We should use paper bags and glass bottles. “Protect the earth”环保主题演讲Tips小组合作,每组选择文中的一个小主题.(可以借助板书）
Why should we …?
We should/shouldn’t..
切合主题，提出保护口号.nourish(养育) usWe should protect the Earth.