热带雨林课件ppt.ppt

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1、Unit 4 Our WorldTopic 1 Plants and animals are important to us Section C-by Linhaiyan Chengxing Middle School,FuQing教学目标与要求教学目标与要求复习复习导入与呈现导入与呈现语言点语言点练习巩固练习巩固作业作业阅读阅读1阅读阅读2Teaching aims and demands1.(1)Learn some words about rainforests:cover,surface,meter,dark,forest,control,wood,rubber,protect(2)L

2、earn some other words and expressions:fact,in fact,make up,large,lake,sea,ocean,drop,in danger(3)Learn some useful expressions:thousands and thousands of be very important tobe necessary for cant live withoutsave every drop of waterReview comparative and superlative degrees of adjectives:(1)The plan

3、ts in the forests help to make the air fresher.(2)But now rainforests are becoming smaller and smaller.(3)Water makes up the largest part of the human body.3.Describe nature resource and realize the importance of environment protection:(1)They also help to control the weather.(2)The rainforests give

4、 us wood,rubber,fruit,medicine and so on.(3)It is important to all living things.返回返回REVIEWReview comparative and superlative degrees of adjectivesCompare their heightYaoMing is taller than OlaYaoMing is the tallest player in the team.Compare their ageI am 55 years oldI am just 10Jacky chan is older

5、 than LinMiaoke.LinMiaoke is yonger than Jacky Chan.What do you think of the number of Chinese population?It is the largest in the world,and its becoming larger and larger.比较级比较级 and 比较级比较级越来越好：越来越好：better and better越来越新鲜：越来越新鲜：fresher and fresher越来越漂亮：越来越漂亮：more and more beautiful返回返回 Lead inThis i

6、s our worldHow do you feel?Question:How should we do to protect our world?Save waterProtect the forestsReduse the air pollutionPlant trees.PresentationRainforests Question:Could you tell me some importances of rainforests?Or why we should protect rainforests?Well,now lets come to the new lesson to g

7、et the answers.1a.Read and understandRainforests can:Help to make the air fresher.Help to control the climate.Give us wood,rubber,fruit,medicineTry to think about it.You can do it!Now we finally know:1b.Work alone()1.Rainforsts cover half of the earth”s surface.()2.We can everything clearly in rainf

8、orests.()3.Rainforests can give us many useful things.()4.In rainforests all the animals live on the ground.()5.Without rainforests,the environment would become quite terrible.Mark true(T)or False(F)according to 1a.FFTFT返回返回Rainforests really help us a lot,so we should try our best to protect them.A

9、part from this,whats also important to our world？absolutely,its water.lets see how important water is!2a.Read and understandWork alone Water is to all living things.all and need water.also need water to drink,to cook and .Water,there could be no life on earth.So we must save water.Complete the passa

10、ge according to 2a.importantplantsanimalsHumans towithoutclean返回返回Theyre planting trees,its also a great thing to protect our environment.What are they doing?Spring is warm.its the best to plant trees.When you plant trees,first,a hole in the earth,make sure the hole is enough for the tree.Then,put t

11、he tree in the hole,and it straight.After that,fill the hole with earth,then make the earth hard with your.Finally,water the tree.If everything is OK,the tree will grow leaves a few days later.Lets listen to the tape to get how to plant trees.3.Work alone.Listen to the tape and fill in the blanks.se

12、asondigbigkeepfeet返回返回 Language points1.Rainforests cover 6%of the earths surface.热带雨林覆盖地球表面的百分之六.百分数的读法:先读基数词,再读百分号%percent6%读作:six percentcover覆盖Water covers most parts of the earth.2.Thousands and thousands of animals live in rainforests.千千万万的动物生活在热带雨林.当hundred,thousand,million,billion等表示不确定的数目,表

13、示一个大概的数量,常用复数形式,后面跟介词of,意思为,数以百计的，成千上万的,数百万计的,几十亿的.当这些词与具体数字连用时不用复数形式.Five hundred,six thousand.3.Many of them live in the trees over 30 meters from the ground.Over=more than 多于,超过意思.More than/Over 100 students are的planting trees.Less than 少于,不超过They lived in Shanghai less than a year.4.In fact,wate

14、r makes up the largest part of the guman body.Make up 形成,组成,构成.Girl students make up only 40%of all the students.5.We must save every drop of water.Drop 名词,滴A drop of water 还可以当动词,掉下,放弃A bottle dropped onto the floor.返回返回 Exercises随堂巩固随堂巩固1.Five _ people are waiting for bus.A.Hundred of B.hundreds C

15、.hundred D.hundreds of2.I can _ when I was five years old.A.Make a bed B.make the bedC.Make bed D.make the beds 3.We should pretect wild animals _.A.Well B.good C.much D.many 4.The number of wild animals are becoming _ than before.A.Much more small B.much more smaller C.Small D.much smaller 5._ his photos are very beautiful.A.Most B.Most of C.The most D.More CBADB返回返回HomeworkTalk in group after class about what else we can do to improve our environment.Make a list of the animals in danger and discuss what should be done to safe them.返回返回 Thanks a lot!Bye-bye