watertalkPPT课件.ppt

1、-2A RiddleEveryday English:Guess : Who am I?I am the most common liquid.People cant live without me.Animals and plants also need me.I can change my form.waterA RiddleA RiddleGroup work:Water QuizTry this quiz: You could live without water for a few _. days weeks hours2. Your body need about _ litres

2、 of water daily. two eightA.four3. When you exercise, you need _ water. more lessA.the same4. When you freeze water, it becomes a _. liquid solidA.gas5. About _ of Earth is covered by water. one third two thirdsA.one half6. The chemical symbol for water is _. H2O H2O2A.HO27. Which is not one of the

3、three largest oceans in the world? Pacific Indian AtlanticA. Arctic8. How much of your body is made up of water? 75% 25%A. 6% 9. What is the longest river on Earth? The Nile10. The solid state of water is known as what? Ice11. Water is made up of what two elements? Hydrogen haidrdn and oxygen12. Wat

4、er freezes at what temperature? 0 13. True or false? Sound travels faster through water than air? True14. True or false? Pure water is tasteless. True15. True or false? Ice sinks in water. False-15In this picture, we can see the water cycle in natural environment. Put these sentences in the correct

5、order. Write the numbers 15 in the brackets.( ) It flows into the sea.( ) It runs into streams and rivers.( ) It rises from the sea to the sky.( ) It falls as rain again.( ) Water falls from the clouds as rain.-16She is talking to the (drop of) water.She is in the bathroom.Who do you think is talkin

6、g to the girl in the story?Where is the girl?What is she doing?She is brushing her teeth.21-18Please read the story silently.a water treatment workssomething done to change a thing or personfactory-a special factory where we give water a thorough cleaning complete a sewage plantbuilding with machine

7、s in itdirty water and waste matterworksfactory-21the Yangtze River -22the Yangtze Riverthe Huangpu RiverA. Daisy tells Benny that she has talked to the water, and Benny thinks she is strange.B. Daisy is brushing her teeth with the tap on. The water tells Daisy to turn the tap off, and she is surpri

8、sed. C. The water tells Daisy about its long journey from a cloud in Jiangxi and where it will go. It reminds her not to waste or pollute water.P1-3P4-13P14-16Read the story and match the main idea with each part. (Individual work I) Why did the water ask Daisy to turn off Why did the water ask Dais

9、y to turn off the tap?the tap? Because she was wasting water.Because she was wasting water. How do you know Daisy was wasting water?How do you know Daisy was wasting water? She was brushing her teeth with the tap She was brushing her teeth with the tap on. Water was pouring into the washbasin on. Wa

10、ter was pouring into the washbasin and vanishing down the drain.and vanishing down the drain.Read from P 1 to P3-25 _, it _, it floatedfloated in a _ in _. in a _ in _. _, it _, it sped downsped down the _ into the _. the _ into the _. _, it _, it travelledtravelled a long way and a long way and ran

11、 intoran into the the _._. _, _ _, _ droppeddropped it it intointo a _. a _. _, _ _, _ carriedcarried it it toto a _. a _.Daisy thought water came from the tap, but before that, what happened to the water?FirstNextThenAfter thatFinallycloud Jiangxi stream mountain the Yangtze River lake the Huangpu

12、Rivercloudlake Jiangxi mountain the Yangtze River stream cloud FirstNextThenthe Yangtze River After thatFinallythe Huangpu River Read from P4 to P61. First, it _ in a cloud in Jiangxi.1. First, it _ in a cloud in Jiangxi.2. Next, cloud _ it into a stream.2. Next, cloud _ it into a stream.3.Then, it

13、_ down the mountain into the Yangtze 3.Then, it _ down the mountain into the Yangtze River.River.4. After that, the Yangtze River _ it to a 4. After that, the Yangtze River _ it to a lake.lake.5. Finally, it _ a long way and _ into 5. Finally, it _ a long way and _ into the Huangpu River.the Huangpu

14、 River. dirty clean uptravelled dropped sped carried ran floatedfloateddroppedspedcarriedtravelled ranRead the sentences in correct order and choose proper verbs to fill in the blanks:-271._The journey of being cleaned up2._3._Huangpu River takePeople gave it a_ and added a few _ to the water.4._5._

15、6._ Read from P7 to P13A water treatment worksDaisys bathroomPipeSewage plantSeaRiver thorough cleaning chemicals travel go be back go pumpThe map on the right shows the waters journey. Describe the waters journey in your own words:the Hangpu River-29the Hangpu RiverWaters Journey:The water told Dai

16、sy not to waste or pollute The water told Daisy not to waste or pollute it because it was liquid gold.it because it was liquid gold.Read from P12 to P13 and do T/F was like precious F-31Facts:How much water is there on the earth?Water covers almost _of the Earths surface, but only about _ is fresh w

17、ater. All the rest is salt water. But less than _ is the form of lakes or rivers. The rest is frozen as glaciers at the North and South Poles.70%3%1%Think & ConcludeWater is very precious. We cannot waste or pollute it.Discuss:Discuss:How to save water?How to save water?Dont rinse your hands, clothe

18、s or vegetables under a running Dont rinse your hands, clothes or vegetables under a running tap do so in a bowl or sink. tap do so in a bowl or sink. Take short showers instead of baths. Take short showers instead of baths. If you do have a bath, use the water left over to wash the If you do have a

19、 bath, use the water left over to wash the floor. floor. Fix dripping taps.Fix dripping taps.DoDo not not play water games. play water games. Control the flow from the tap, do not always turn it to the Control the flow from the tap, do not always turn it to the full. full. Assignment: Read the story.Read the story. Copy the new words and Copy the new words and phrases.phrases.-36