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1、Unit 5 Water,What do you know about?,1.You can live without water for a few_. a.hours b.days c.weeks 2.When you exercise, you need _water. a.more b.less c.no,3.Water covers about_of the Earth. a.one third b.one half c.two thirds 4.About _of the water on Earth is “fresh“ or without salt. a.3% b.10% c
2、.20%,It runs into rivers. It rises from the sea to the sky. It runs into the sea. It falls as rain again Water falls from the clouds as rain.,1,2,3,4,5,1.Turn Sth off,turn off =switch off 关掉(指电器） turn on=switch on 打开(指电器）,课文讲解,2.Do you know where I come from?,where I come from 为宾语从句，语序应为陈述语序，不用做疑问句。
3、,3.It was time for people to clean me.,It is time for sb to do sth 到了某人做某事的时候了 It is time for sth.=It is time to do sth 该做某事了,It is time for class.=It is time to have classes.,4.People will make me clean again.,clean 在这里是形容词“干净的” make sth/sb +adj. 使某物/某人. adj 在这里做宾语补足语 eg:We will make our school mor
4、e beautiful.,5.Remember not to waste or pollute me.,remember to do sth 记得要去做某事remember doing sth 记得做过某事 eg:The book must be on the desk.I remember bringing to the classroom. 否定句中的表示并列的and 要变成or eg:He doesnt like drawing or shopping.,on副词，意为“开着”，与动词be连用，表示“在使用中；在流动中”。 eg:The radio is not on.收音机没开着。 e
5、g:He left his room with the light on.他离开了房间，灯亮着。,6.The tap was on.水龙头开着。,7. The cleaned me and added some chemicals to me.他们把我净化并向我加入一些化学品。,The cleaned me and added some chemicals to me.他们把我净化并向我加入一些化学品。 Addto意为“把加入.”，add动词，意为“增加，增添”,8.The I travelled through the pipes under the streets and now Im h
6、ere.然后我流经地下管道来到这里。,Through介词，意为“穿过：通过”。 eg:Please be careful when you go through tunnel过隧道时请小心。,9.辨析：through,across与over,10.So is this the end of journey?那么这里是你路程的终点吗？,He put his watch at the end of the bed.他把手表放在床尾。 Could you tell me the end of the story?你能告诉我故事的结局吗？ at the end of，by the end of与in
7、the end (1)at the end of“在的后期；在末端”，既可以指时间的后期，又可已指位置的末端。 eg:At the end of the street,you can see a hotel.,扩展,（2）by the end of “到末；在结束时”，仅表示时间概念。 eg:He came back by the end of the meeting.在会议结束时他回来了。 （3）in the end “最后；终于”，与at last ,finally相近。 eg:In the end,we got to the small village.最后，我们到了那个小村庄。,1.I
8、f you turn a tap off, the water_from the tap. a.stops running b.starts running 2.The rain dropped. It_from the sky. a.fell down b.disappeared,3.When you add some chemicals to water, you_the water. a.get some chemicals from b.put some chemicals in,4.If you had a good journey, you_. a.had a wonderful
9、party with your friends at home b.travelled happily from one place to another 5.Water is valuable. It is _. a.very clean b.useful and important,12 July Dear Diary, I talked to a drop of water today. It was really interesting. In the morning, I left the tap on in the bathroom. Then I heard an angry _
10、. It told me to_ the tap _.,added.to journey valuable dropped turn.off voice,voice,turn,off,It was a drop of water! It told me about its _.It _from a cloud into a river. We could not drink this water because it was dirty, so people had to clean it. They_some chemicals_the water to make it clean. The
11、n it travelled to my home. Water is very_. People should not waste or pollute it.,journey,dropped,added,to,valuable,clouds pipes reservoir river sea,clouds,river,reservoir,pipe,sea,1.Why was the drop of water angry? Because Dora_. 2.Why did people clean the water after it ran into a reservoir? Because it_.,was dirty,was wasting water,3.Why would the drop of water go into the sea again? Because its journey_. 4.Why did the drop of water tell Dora not to waste or pollute it? Because water_.,started there,is valuable,THANK YOU!,
