1、a lot of flowers and trees;the clean street;happy;some tall buildings;a clean riverWhat can you see in the pictures?What can you see in the pictures?c.Smoke from cars makes the air dirty.b.Black smoke from factories makes the air dirty.a.The river is dirty.The fish are dead in the river.d.Rubbish ma
2、kes the streets messy and dirty.看图片，将下列句子填入方框里，看图片，将下列句子填入方框里，只填序号。只填序号。acdbmessyWhat makes the city dirty?make(s)the airdirtythe streetsthe river What makes the city dirty?make(s)the airdirty.the streetsthe riverSmoke from cars and factoriesRubbishRubbish in water and dead fishWhat makes dirty?A:Wh
3、at makes the air dirty?B:A:What makes the streets dirty?B:A:What makes the river dirty?B:Smoke from cars makes the air dirty.Black smoke from factories makes the air dirty,too.Rubbish makes the streets messy and dirty.Rubbish makes the river dirty.The fish are dead.Keep the city clean What can they
4、do to keep their city clean?读一读课文，并划出关键句。Miss Li:Nancy:Su Hai:Wang Bing:Miss Li:Liu Tao:What can we do to keep our city clean?We can take the bus and the metro to school.We can walk to school too.We can move some factories away from our city.We can put rubbish in the bin.We can plant more trees.They help keep the air clean.Your ideas are great.Well done,class!metro move some factories away from the city plant more trees地球是我们的家。我们每个人都应该保护她。1.熟读课文第一部分。熟读课文第一部分。2.想一想如何使我们的城市干净。想一想如何使我们的城市干净。
