课件26张PPT。Let’s Sort Garbage!Lesson 45Unit 8Save Our World课文呈现知识讲解…………词汇
听写课堂导入课文1课堂小结课后作业…Lesson 45 Let’s Sort Garbage!课堂练习 同学们，上一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！Look at the picture. When we throw away the garbage, we must sort it. Why??THINK ABOUT IT
·What do you do with your garbage?
·What kinds of things can be recycled and reused? Danny empties? two bags of garbage onto the floor.
Jenny: That's a lot of garbage! Can I help
you sort it?
Danny: Yes, please. Let's put the glass
here, the metal here, the plastic here and the paper here.(After they sort the garbage, Danny and Jenny are surprised. Almost all of it can be reused or recycled！? They need to throw away only one small bag of garbage！)
Jenny: People throw too much? away. They shouldn't waste
so much!
Danny: That's right. Look！There is more paper than plastic.
And there is less metal than plastic. There is the least amount of glass.
Jenny: And the most amount is paper. It is a waste to use
paper only on one side.Danny: Hey! I found a toy car. One of the wheels is
broken. I'll take this car home and clean it. Then I'll use some glue to fix the broken wheel. When I finish fixing this car, I will give it to my little cousin, Debbie.
Jenny: Nobody should throw away a toy like this. It can be
fixed. It's not right to waste things. Look at all of the glass. It can all be recycled and made into new glass.Danny: A lot of glass is broken. It's dangerous to leave
broken glass on the ground. Once, I cut my foot on a piece of broken glass.
Jenny: Litter can hurt people！ empty/'empt?/v.把……弄空 adj.空的知识点1考向一empty可作动词，意为“把……倒空；把……
掏空”。
eg：Can you empty the plates for me?
你能替我把盘子里的东西倒掉吗？考向二empty还可作形容词，意为“空的；空着的”。
其反义词为full，意为“满的”。
eg: I looked into the classroom but I found it empty.
我朝教室里看，但我发现里面空无一人。典例There is an ________(空的)bottle on the road.
Everyone should be careful. (南京)empty魔法记忆一语辨异：Please empty the box. And it will be empty. 请清空箱子，那它就会是空的。 Almost all of it can be reused or recycled!
几乎所有的垃圾都可以再次使用或回收利用！知识点2考向一can be reused or recycled是含有情态动词的被动语态，带有情态动词的被动语态结构为：情态动词＋be＋过去分词。
eg：Your watch can be repaired.你的表能修。考向二含有情态动词的被动语态的否定句在情态动词后加not，变疑问句时把情态动词提前。
eg：He can not be found.找不到他了。
Must I be paid for this?
我肯定能得到赔偿吗？典例Teenagers ________ allowed to drive.(衡阳)
A．should not be
B．should be not
C．not should be【点拨】含情态动词的被动语态的否定形式为：情态动词＋not＋be＋动词的过去分词。A too much太多知识点3考向一 辨析too much，much too和too many【易错点】典例 1—He's ________ the plan.
—So am I. It costs ________ and we have no
enough time. (黔东南)
A．for；too much B．against；too much
C．with；much too D．of；much too【点拨】句意：——他反对这个计划。——我也是。这花销太大，并且我们没有足够的时间。be for支持；be against反对；be with和……在一起。另外，too much“太多”；much too“太”，修饰形容词或副词。B典例 2Mum，you've got ________ housework to do. Let me help you.(自贡改编)
A．too many B．too much
C．too little D．much too【点拨】此题意为“妈妈，你有太多家务活要做。让我来帮助你吧。”housework是不可数名词，排除A、D，根据句意可知答案。B一语辨异：Sun Liang is much too fat, because he eats too much fat and too many kinds of fried food.孙亮太胖了，因为他吃太多的肥肉和太多种类的油炸食品。 魔法
记忆1) Read the lesson and write true (T) or false (F)．Let's Do It !1．There is a lot of garbage: glass, metal, plastic and paper.
( )
2．There is the most amount of glass and the least amount of
paper. ( )
3．Danny found Debbie's toy car in the garbage. ( )
4．Danny once cut his foot on a piece of broken glass. ( )TFFT
Example：
It is a waste to use paper only on one side.
1．It is fun to travel!
2．It is not right to waste things.
3．It is quite easy to find information with this program.
4．They think it is rude to point with a finger.
5．It is dangerous to leave broken glass on the ground.Let's Do It !2) Circle the words that “it” refers to in each sentence. Learn to learn
As we know, “it” can be used to refer to time,
weather, distance or something mentioned before. Study the sentences above. Can you find other ways of using “it”？Let's Do It !PROJECT SORT THE GARBAGE
Go for a walk around your neighbourhood. Take a bag with you and pick up any garbage you see. Wear gloves because garbage is dirty.
Bring the garbage to school. Don't throw it away!
What kind of garbage did you find? Sort the garbage. Make a pile for paper, plastic, metal, glass and other things.
·How much of each type of garbage do you have?
·What type do you have the least/most amount of?Do you want to throw away the garbage now? Don't! What else could you do with it? Think! Could you use some of the garbage again? How?
How could people make less garbage? Talk about this and write down your ideas. Now you can take out the garbage！ How could people make less garbage？
First，people can buy fewer things. When they buy fewer things，they throw away fewer things. Second，people can reuse things. They can use things，and then they use them again. Third，people can recycle things. They can make old things into new things.本节课我们主要学习了以下重点内容：
重点单词：empty
重点短语：too much
重点语法：含情态动词的被动语态1.熟记所学单词及用法。
2.完成本课时的课后作业
