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litter 垃圾；使乱七八糟；乱扔
Read and learn by heart.
Step Three: Read the lesson and write true or false.
There is a lot of garbage: glass, metal, plastic and paper.
There is the most amount of glass and the least amount of paper.
Danny found Debbie’s toy car in the garbage.
Danny once cut his foot on a piece of broken glass.
Step Four:Work in groups.
Read again and translate into Chinese.
Find out the language points:
1. Danny empties two bags of garbage onto the floor.
empty 的用法 :
v.把......弄空
adj. 空的 反义词是full
2. There is the least amount of glass.
其用法有： the amount of ...的数量，后接不可数名词作主语时，谓语动词用单数。而 an amount of 表示“许多的”后加不可数名词。 个人手案
3. One of the wheels is broken.
be broken 坏了，不工作了，相当于don’t/doesn’t work
固定搭配： break off 打断， break into 破门而入 ，
break the rule 违反规则。
4.Read the dialogue and find out other sentences with “it”.
It is dangerous to leave broken glass on the ground.
It is not right to waste things.
It is a waste to use paper only on one side.
Summary:“It” can be used to refer to time, weather, distance or something mentioned before.
Step Five :Have a try.
1.Write down the following
分类 整理 类 种类 类型( )把......弄空 ( )
金属 ( ) 塑料（的）( )回收再用；再循环( )
量；数量( ) 垃圾；使乱七八糟；乱扔( )