Unit 2 Plant a Plant Lesson 7 Planting Trees课件（20张PPT).ppt

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1、Unit 2 Plant a Plant!Lesson 7 Planting Trees 目 录CONTENTS1 学习目标 2 新课导入3 新课讲解 4 当堂小练5 课堂小结 6 课后作业7 学习目标Master the new words and phrases,understand the meaning of text.Learn about how to plant a tree.Why we should plant trees?How to protect the environment in our daily life?思 考新课导入思 考 What are the basi

2、c steps for planting a tree? When is Tree Planting Day in China?新课讲解Its March 12. Li Ming and his classmates are on a hillside. They are planting trees as a school project. A worker is there helping them.Li Ming: Excuse me, sir. We are digging a hole. Is it big enough?Listen and read.Worker: Maybe y

3、ou should make the hole a little bigger. It must be large enough to hold the roots of the seedling.Li Ming: I see. Thank you. Worker: Now, put the seedling inside, cover the roots and fill新课讲解the hole with dirt.Then pack the dirt around the new tree with your feet.Wang Mei: OK. By the way, there is

4、another group of people down the hill. Are they also coming to plant trees?Worker: Yes. Many people are worried because the environment is changing, and they want to do something to help.Li Ming: These changes are serious. When there is a dust storm in spring, it gets windy and dirty everywhere.新课讲解

5、Wang Mei: Ms. Liu told us the wind blows the dirt and the sand here from the north. Nothing can stop the wind because there are not many trees left.Worker: Exactly. A lot of rich lands in the northern area have turned into desert.Li Ming: I suppose tree planting is very important work.Wang Mei: For

6、sure. I really like this project. Its also a great way to learn about nature.Worker: Yes. Its fun and important to plant plants. Oh, and please remember to put a little water in the bottom of the hole.新课讲解Language point 1 fillwith 用用.填满填满e.g. Fill the pots with earth.在花盆里装满泥土。e.g. He filled the bott

7、le with wine.他用酒装满了那只瓶子。be filled with 被充满/塞满 e.g. But the new roads and streets will be filled with many cars and buses soon. 但是不久，新的道路又将被很多公共汽车和小汽车塞满。新课讲解Language point 2Maybe you should make the hole a little bigger . make + sb./sth. 宾补使某人/ 某物名词作宾语补足语e.g. They made him captain. 他们选他当队长。形容词作宾语补足语e

8、.g. The news made him sad. 那条消息使他悲伤。新课讲解动词原形（不带to 的动词不定式）作宾语补足语e.g. He made me repeat it. 他让我将它重述一遍。过去分词作宾语补足语e.g. When I first came to New York, I had a lot of trouble making myself understood.我刚到纽约时，想让别人听懂我的话非常困难。make sb. do sth.的被动形式为sb. be made to do sth.(某人被迫做某事)e.g. The children must be made t

9、o clean their own room.必须叫孩子们打扫他们自己的房间。新课讲解Language point 3Oh, and please remember to put a little water in the bottom of the hole.辨析：remember to do sth.与remember doing sth.remember to do sth. 记住去做某事e.g. Ill remember to mail these letters. 我会记得去寄这些信。新课讲解remember to do sth.记得要做某事( 事情还未做)When you leav

10、e the room, remember to turn off the light.当你离开房间的时候记得要关灯。remember doing sth.记得做过某事( 事情已经做了)My sister remembered locking the door. 我妹妹记得锁过门了。新课讲解1Lets Do It! Read the lesson and write true (T) or false (F).1. Li Ming and Wang Mei were having a picnic on a farm. ( )F2. They asked a teacher for help.

11、( )3. Li Ming saw another group of people on the hillside. ( )4. Wang Mei really liked the project. ( )FTT新课讲解 Fill in the blanks with the words in the box. Then put the steps for planting a tree in the correct order. bottom hole around cover rootsPut the _ of the seedling into the hole.Put a little

12、 water in the _of the hole.rootsbottom5_ the roots and fill the hole with dirt.Pack the dirt _ the new tree with your feet.Dig a _ big enough to hold the roots of the seedling.Coveraroundhole21342新课讲解3 Complete the passage with the missing phrases. A. the Green Great Wall B. planting more trees C. d

13、ust storms D. the northern partThe Green Great Wall was built across _of the country. What is the Green Great Wall? It is made up of strips of human-planted forest.D. the northern part新课讲解Each year _ blow a lot of soil off the land. Things are getting more and more serious. About 3 600 square kilome

14、tres of grassland are taken by the Gobi Desert every year. The Green Great Wall project started in 1978. By _, people hold back the expansion of the desert and raise northern Chinas forest coverage by 5% to 15%. By the year 2050, _ will be about 2 800 miles long.C. dust storms B. planting more trees

15、 A. the Green Great Wall 当堂小练一、用方框中所给词(组)的适当形式填空1Are you going to take part in the speech competition?Thats_. Its too good a chance to miss.2_, is there a bank near here?3The traffic is heavy now. The streets are often _ too many cars.4The haze often happens in the_ part of China.5In the sun, the ic

16、e in the glass will_water.for surenorthby the wayturn intofor surefill withBy the wayfilled withnorthernturn into当堂小练二、单项选择1What can we cover the roof _？The rain is too heavy.Ain Bwith Cof Dfor2There is a fish _ the bottle.Ato the bottom of Bat the bottom ofCto bottom of Dat bottom ofBB当堂小练3Look out

17、! The cup is _hot water.Afull of Bfill with Cfull Dfill4What happened to Mark?He fell_the bike_a snowy morning.Aoff; inBdown; atCoff; onCA课堂小结重点单词：cover, fill，hole，storm，dirty，northern，bottom重点短语： fillwith ， by the way，dust storm， turn into ，in the bottom of 重点句子：Maybe you should make the hole a little bigger .Oh, and please remember to put a little water in the bottom of the hole.