《Let's Sort Garbage》Save Our World! PPT教学课件
第一部分内容：Learning Targets
1. Be able to use the words: sort, empty, metal, plastic, recycle, amount, litter, do with, too much, give sth. to sb. , be made into, a piece of, go for a walk, take out
2. Learn to sort the garbage
3. Learn and master the usage of“it”
4. Learn some key sentences:
· What do you do with your garbage？
· Danny empties two bags of garbage onto the floor.
· After they sort the garbage, Danny and Jenny are surprised.
· People throw too much away.
· One of the wheels is broken.
· It's dangerous to leave broken glass on the ground.
· Once, I cut my foot on a piece of broken glass.
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Let's Sort GarbagePPT，第二部分内容：Think and answer
Are you green?
Do you try to walk or ride a bike to school?
Do you buy new clothes just because they are the latest fashions?
Do you open a window instead of turning on air-conditioning?
Discussion
What should we do to protect the environment?
1. Turn lights off.
2. Collect cans and paper, and sell them for recycling.
3. Try our best to save energy.
4. Ride a bike to school.
5. Use both sides of the paper.
6. Don't throw litter away everywhere.
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Let's Sort GarbagePPT，第三部分内容：Words and expressions
sort v. 分类；整理
n. 类；种类；类型
empty v. 把……弄空
adj. 空的
metal n. 金属
plastic n. & adj. 塑料(的)
recycle v. 回收再用；再循环
amount n. 量；数量
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Let's Sort GarbagePPT，第四部分内容：Presentation
Listen and read the passage.
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.
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Let's Sort GarbagePPT，第五部分内容：Let’s Do It!
1.Read the lesson and write true (T) or false (F).
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. ( )
2.Circle the words that“it”refers to in each sentence.
Example:It is a waste to use paper only on one side.
It is fun to travel.
It is not right to waste things.
It is quite easy to find information with this program.
They think it is rude to point with a finger.
It is dangerous to leave broken glass on the ground.
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Let's Sort GarbagePPT，第六部分内容：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.
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Let's Sort GarbagePPT，第七部分内容：Language points
1.What do you do with your garbage？
do with 处理。它常与特殊疑问词what搭配使用。
例：What should I do with this problem？
我应该如何处理这个问题？
2. Danny empties two bags of garbage onto the floor.
empty v. 倒空 adj. 空的
例：The streets began to empty after midnight.
午夜过后街上行人开始稀少了。
Vargas emptied his tool bag.
瓦格斯腾出自己的工具袋。
3.After they sort the garbage, Danny and Jenny are surprised.
sort v．分类；整理。常用短语：sort out 把……整理好，分类。
例：I must sort out my clothes for the party.
我必须把聚会上要穿的衣服整理好。
4. Almost all of it can be reused or recycled!
1) 此句为含有情态动词的被动语态，其构成形式为：情态动词(can / may / must / should) +be + 过去分词。
例：The flowers should be watered every day.
花儿应该每天浇水。
Cars mustn’t be parked here.
小轿车不可以停放在这里。
2) re-是前缀，意思是“再，重新”。例：rewrite, replay, reappear, rebuild, remarry等。
reuse意思是“重新使用；再使用”。
例：She often reuses old envelopes.
她经常重复使用旧信封。
recycle意思是“使再循环；使……重新利用，重复利用”。
例：They recycle empty tins so as to use the metal.
他们回收空罐头盒以利用其金属。
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Let's Sort GarbagePPT，第八部分内容：Grammar
1. it 的用法：
（1）it作代词
it不仅可以指代具体的物品，而且还可以指代时间、距离、路程、天气等。
例：It is half past five now.现在五点半了。
It is sunny and hot in my hometown in summer. 在我的家乡夏季晴朗、炎热。
（2）it作形式主语
当句子的主语过长时，为避免头重脚轻通常将it置于句首作形式主语，而将真正的主语(通常是不定式短语、动名词或主语从句)放在句子的后面。
例：It is important for us to use English as much as possible.
对我们来说尽可能多地使用英语是很重要的。
It is reported that there will be a thunderstorm tomorrow. 据报道明天将会有一场暴风雨。
（3）it作形式宾语
当句子的宾语过长时，常用it作形式宾语，用来代替真正的宾语(通常是不定式短语、动名词或宾语从句)。例：I found it hard to walk through the forest in five hours. 我发现在五个小时之内穿越森林是件很困难的事。
Jim thinks it is a pity that he didn't win the first place in the English competition. 没有在英语竞赛中获得第一名，吉姆觉得很遗憾。
2. 动词不定式作主语的用法
动词不定式的基本形式为“to + 动词原形”，其否定形式是“not + 动词原形”。它能起名词的作用，在句子中充当主语、表语、宾语和宾语补足语。动词不定式在作主语时，常用it作形式主语，而往往将动词不定式放在谓语或表语之后。
例：It’s not easy to learn a foreign language well.
(= To learn a foreign language well is not easy.)
学好一门外语不容易。
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Let's Sort GarbagePPT，第九部分内容：Exercises
一、根据句意和首字母及汉语提示完成句子。
1. This beautiful bowl is made of _____ (金属).
2. The streets soon e______ when the rain began.
3. She found the ring while s______ some clothes.
4. When my clothes are worn out, I generally _____ them _____(扔掉).
5. There isn't much metal in the bodywork of this new car. It’s mainly ______(塑料).
6. The Japanese r______ more than half their waste paper.
7. Please wait at the school gate. John will ___ you ___ there.
8. About two percent of fast-food packaging ends up as l_____ (垃圾).
二、单项选择。
1. It is not always easy _____ invitations.
A. to refuse B. refusing
C. to be refused D. being refused
2. It is bad for your eyes ___ computer games too much.
A. plays B. to play
C. play D. playing
3. It _____ him four hours and a half to do the work.
A. spent B. used C. needed D. took
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Let's Sort GarbagePPT，第十部分内容：Summary
1. Learn some new words and expressions.
2. Be able to understand the passage .
3. Learn the usage of it and the infinitive as the subject.
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Let's Sort GarbagePPT，第十一部分内容：Homework
1. Finish the exercises of Lesson 45.
2. Preview next lesson.
3. Tell your parents and your friends about the knowledge we learnt today and sort and reuse garbage together.
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