【文档说明】清华版英语四年级下册《Unit 1 Home sweet home Lesson 6》PPT课件2 (共21页).ppt,共(21)页,4.087 MB,由小喜鸽上传
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TheEarthishometo(全部的)ofus.Let’stakeoftheEarth.allWholivesontheEarth?People,(动物)and(植物)liveontheEarth.animalsplants(空气)isi
mportanttoallofus.Let’skeeptheairclean.AirWhoneedsair?(人),animalsandplantsneedair.People(例如),grassgrows.Forexample(兔子)eatthegrass.Foxeseattherabbit
s.RabbitsPigseatthe(胡萝卜).Tigerseatthepigs.carrotsneedneedneedneed一、need表示“需要”或“必须”,通常用于否定句和疑问句.例如:Youneedn’tdoitagai
n.你不需要再做了.Needhedothishomeworkfirst?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:Weneedn’thaveworried.其实我们不必要慌.三、need
n’t后的不定式间或也能用进行式或被动语态.例如:Heneedn’tbestandingintherain.他不必要站在雨中.people人animals动物plants植物theEarth/Earth地球air空气forexample例如all全部的,所有的()liveontheEarth
?A.WhoB.HowC.What()Let’softheEarth.A.takeB.takingC.took()Airimportanttoallofus.A.isB.arec.wasMouseeatthenuts.Cateatthemouse.Pigeatthecarrots.Tigerea
tthepig.Rabbitseatthegrass.