Unit 1 Home sweet home,Lesson 6,填一填，补一补,The Earth is home to (全部的)of us. Lets take of the Earth.,all,Who lives on the Earth? People, (动物)and (植物)live on the Earth.,animals,plants,(空气) is important to all of us. Lets keep the air clean.,Air,Who needs air? (人),animals and plants need air.,People,(例如),grass grows.,For example,(兔子)eat the grass. Foxes eat the rabbits.,Rabbits,Pigs eat the (胡萝卜). Tigers eat the pigs.,carrots,need,need,need,need,一、need表示“需要”或“必须”,通常用于否定句和疑问句.例如： You neednt do it again 你不需要再做了. Need he do this homework first? 他需要先做这些作业吗? 二、在否定句中,可以用need的否定形式不定式完成体.例如： We neednt have worried 其实我们不必要慌. 三、neednt后的不定式间或也能用进行式或被动语态.例如： He neednt be standing in the rain 他不必要站在雨中.,读一读,people 人,plants 植物,the Earth/Earth 地球,air 空气,练一练,( ) live on the Earth？ A.Who B.How C.What ( )Lets of the Earth. A.take B.taking C.took ( )Air important to all of us. A.is B.are c.was,A,A,A,PLAY 做个小游戏,用图中的物体说出以下句型,eat .,Mouse eat the nuts. Cat eat the mouse.,Pig eat the carrots. Tiger eat the pig.,Rabbits eat the grass.,你学会了吗？,Thank you！ Goodbye,