八年级英语下13课课件

1、Lesson 13Why are plants important ?1Learning aims1.Master the new words: reason,air,pleasant,among,dig,shade,energy,nothingdie,heat,bamboo.kilogram.2.Master the phrases:carryaway, makeinto, in the shade.3.辨析：between 与 among 的区别。 on the tree 与 in the tree的区别。4.without的用法。5.熟读课文。6.通过本课认识到植物的重要性，呼吁大家保护

2、植被爱护环境。 2Step 2: Check the new words.3根据句意及首写字母提示完成单词。1.The sun gives us h_and light.2.All plants take e_ from the sun and make it into food.3.It is p_ to have a walk in the park after supper.4.She is the tallest a_ her friends.5.The old man d_ when his children came to see him.6.D_ a hole first and

3、 put the small plant in it.7. Pandas like to eat b_.8.We can sit under a tree in the s_. eatnergyleasantmongiedigamboohade4Step 3: Read the text.5 Step 4: Read the text more carefully and fill in the blanks. Trees help _ the air.They give us _-like apples,bananas and oranges.We can _and _things with

4、 treeslike chairs,beds and houses! We can sit under a tree in the_. Plants_the soil.Then the wind and water dont _the soil away.All plants take _ from the sun and make it into food.People and other animals need the food to_.cleanfoodmakebuildshadecovercarryenergylive6Step5 Find out the following sen

5、tences in the text.1.在林间散步是令人愉快的。2.面包不是长在书上的。3.那我们可以坐在树荫下乘凉了。4.这样风和水就不会把土壤带走了。5.所有的植物都在阳光中获得能量，并将它转变成食物。6.没有了食物他们会内有东西吃会死掉。 Its pleasant to walk among the trees.Donuts dont grow on trees.Then we can sit under a tree in the shade.Then the wind and water dont carry the soil away. All plants take energ

6、y from the sun and make it into food. Without food, they would have nothing to eat and they would die.7Step6Discuss in your groups and find out the language points in the sentences.8Step7 Show the language points.1.Its pleasant to walk among the trees. among是介词,意为在和之间用于三个或三个以上的人或物，或笼统的一群人或一些人之中。其宾语通

7、常是一个表示笼统数量或具有复数（或集合）意义的名词或代词。between主要指两者之间，其宾语往往是表示两者的名词或代词，或者是由and连接的两个人或物： 1.He sits_ Jim and Danny.2.There ara four American students _them.betweenamong92.Donuts dont grow on trees.in the tree 一般指外来的东西在树上，不是树本身所有，如人、动物等在树上。 on the tree 通常指树本身长出的东西，如枝、叶、花、果等。 1.Jack is_ the tree. He cant get down

8、 .2.Shes picking oranges _that tree. 3.He saw a cat _the tree. 4.There are many apples _the tree .inoninon103.Then we can sit under a tree in the shade. in the shade 在阴凉处类似的词组还有 : in the sun 在阳光下 in the light 在灯光下114.Then the wind and water dont carry the soil away.carry away意为把搬走；拿开;冲走。carry 作动词意为“

9、搬运、携带”。请帮我把这个箱子拿走。一个小男孩把那个大箱子搬走了。Please help me carry the box away.A little boy carried the large box away.125.All plants take energy from the sun and make it into food.makeinto 意为“把 制成 ”。make 后接原材料, into 后接产品，用于主动语态。其被动形式为be made into.含有 make的其他短语: make friends 交朋友 make noises制造噪音 make money 赚钱 mak

10、e progress取得进步 make up 组成 make sure确信1.他们把玻璃制成瓶子。2.葡萄可以酿成葡萄酒。They make glass into bottles.Grapes can be made into wine.136.Without food, they would have nothing to eat and they would die.Without做介词，意为“没有；不。”后接名词代词或动名词形式作宾语。它的反义词是with。Youll get wet if you go out in the rain _an umbrella. She entered

11、the room _ knocking. Plants are important for us,we cannot live_ it.withoutwithoutwithout14Step8 Do some exercise.1._the students,she is the prettiest one. A. Among B. Between C.And D.In2.The strong man carried the little girl_.Herparents were worried. A.On B.away C.back D.out3.He sits _Jim and Dann

12、y. A. among B. between C.and D.in4.Here the workers make wood _desks. A.in B.from C.up D.into ABBD155.All the living things cant live _air or water. A.in B .at C.with D.without6.The wind _the soil_if there are no plants.A.carries;away B.takes;不填C.Will carry;away D.will take;不填7.Look!There is a bird_the tree. A.At B.on C.in D. of8.Many animals live_the tree. A.to B.in C.at D.offDACB16Crazy English. Trees help clean the air.They give us food-like apples,bananas and oranges.We can make and build things with treeslike chairs,beds and houses! We can sit under a tree in the shad