高二英语下学期Unit13 The water planetSpeaking 人教.ppt

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1、The water planetThe water planetUnitUnitUnitUnit13 132021/8/11 星期三1Period 1Period 1Warming upListeningSpeaking 2021/8/11 星期三2Dear User,Shame to you all,the Ignorant,I am your life But you seem not to value me Give me all the respect For in me is eternal life If you continue abusing me Surely,all for

2、ms of life will wither away Have you ever imagined,Life without me?I tell you,it will be unbearable Think twice For every drop counts.A letter from A letter from _water 2021/8/11 星期三3Guess the riddle.Its very important to all the animals and plants.Its also important to human beings.Its liquid at ro

3、om temperature.Every day you keep in touch with it.You cant live without it.(a thing)T:Whats it?Its_water 2021/8/11 星期三4Collect as many words as possible related to water.waterwaterriverriverlakelakeoceanoceanfishfishsweatsweaticeicesteamsteamrainrain2021/8/11 星期三5propertiesWhat properties or charac

4、teristics do you know about water?colorlesscolorlesstastelesstastelessodorlessodorlessthree formsthree formsfeeling wetfeeling wetabsorbing heatabsorbing heatdissolvingdissolving2021/8/11 星期三6 What property of water does each of the four experiments illustrate?What causes this phenomenon?Whats this

5、phenomenon related to?Group work2021/8/11 星期三7Lets do some experiments to know some of the properties of water.Experiments exploration2021/8/11 星期三8ExperimentsExperiments1 1 1 12 2 2 23 3 3 34 4 4 41 1 1 12021/8/11 星期三9 Experiment 1 shows how Experiment 1 shows how air pressureair pressure causes a

6、piece of thick paper to causes a piece of thick paper to cling(cling(粘粘着）着）to to an upturned glass of water.an upturned glass of water.1 1 1 12021/8/11 星期三10 Experiment 2 illustrates Experiment 2 illustrates（说明）（说明）how how substancessubstances（物质）（物质）with different with different densitydensity（密度）（

7、密度）behave when placed in behave when placed in the same container.the same container.2 2 2 22021/8/11 星期三11 Experiment 3 is an example of how Experiment 3 is an example of how water water dissolvesdissolves（溶解）（溶解）substances and substances and objects.objects.3 3 3 32021/8/11 星期三12 Experiment 4 illu

8、strates some of the Experiment 4 illustrates some of the differences between differences between salt salt water and water and fresh fresh water.water.4 4 4 42021/8/11 星期三13 What other properties of water do you know?What do you think causes the following phenomena?We can get a lot of nutrients in t

9、he soup.We can get a lot of nutrients in the soup.Wood floats on water while iron sinks.Wood floats on water while iron sinks.The coastal areas are often neither too hot nor The coastal areas are often neither too hot nor too cold.too cold.Why can some living things live at the bottom Why can some l

10、iving things live at the bottom of the ocean where there is no sunshine?of the ocean where there is no sunshine?2021/8/11 星期三14Common sense Do you like water?How much do you know about water?2021/8/11 星期三15Listening2021/8/11 星期三16Part 1:1.Who tells the story in the poem?2.What does one of the sailor

11、s do?3.What do you think will happen next?4.Why are the other sailors frightened?The story is told by a mysterious guest at a wedding.He shoots a bird that flies above the ship.The wind dies down and sailors are hungry and thirty.The other sailors are frightened and angry because the bird is thought

12、 to bring good luck to the ship.2021/8/11 星期三17Part 2:1.What happens to the sailors?2.What happens to the mariner?Why?3.Why is the person telling the story?All the mariners die-except for the one who shot the bird.The mariner who shot the bird survives./Two gods decide that the mariner will live but

13、 mustalways tell his storyHe has to tell his story to everyone he meets.(The“mysterious guest”is the mariner.)2021/8/11 星期三18Speaking2021/8/11 星期三19Without water,what would happen?2021/8/11 星期三20Without water,life would not exist.Water is a must to life.2021/8/11 星期三212222ndnd,March,March2021/8/11 星

14、期三22 World Day for Water is established is established on 22 December 1992.It is to remind on 22 December 1992.It is to remind everybody that we should try efforts to everybody that we should try efforts to provide clean drinking water and know provide clean drinking water and know that the water pr

15、oblems are serious and that the water problems are serious and solutions can help make the difference.solutions can help make the difference.2021/8/11 星期三23Water is being used for ElectricityElectricityAgriculture Agriculture Home useHome useIndustryIndustryTransport Transport EntertainmentEntertain

16、ment2021/8/11 星期三24 How is water being used?What property of water enables it to be used in this way?Why do we use water in this way?Who benefits from using water in this way?Is this a good way to use water?What are some disadvantages of using water in this way?Discuss the six pictures with the foll

17、owing questions for your reference.Dont forget to make notes.Group work2021/8/11 星期三25 The water is being used to/for We should/could What will we do if?If we,we can It would be better to Can you think of a better way?using the following useful expressions.2021/8/11 星期三26.Water can be used to make e

18、lectricity.Water energy is clean and safe,but dams sometimes destroy the environment.This is a good way to use water because the water stays clean and can be reused.Everyone can benefit from the water.Electricity2021/8/11 星期三27 Plants need water to grow.In dry areas,We have to bring extra water to g

19、row plants and vegetables.Many people will benefit from the way of using water.We need water to grow crops,but a lot of water is wasted in the process.We must find a better way to use water so that crops can grow and water can be saved.Agriculture2021/8/11 星期三28 In our homes,We use water to cook,cle

20、an,wash clothes,and wash ourselves.We often waste a lot of water when we use it at home.Everyone use water at home,Of course,but water used at home only benefit one family or one person.Home use2021/8/11 星期三29 Factories of all kinds use a lot of water.Sometimes water is used to make a product,but in

21、 most cases water is simply used to operate the factory.This is not a good way to use water because a lot of water is wasted or polluted by factories.If the water isnt cleaned before it is thrown away,the polluted water will pollute the environment.Industry2021/8/11 星期三30 We use lakes,rivers and oce

22、ans to transport goods of all kinds.It is cheap and easy to send things by ships.It can be a good way to use water for transport if we are careful.Many people can benefit from using water in this way,but if a ship that carries dangerous materials,for example oil,sinks,it will pollute large water are

23、a.Transport2021/8/11 星期三31 Most of us love water sports such as swimming,and playing on the beach.This is good way to use water,but must make sure that we dont pollute the water or throw trash on the beach.If we build too many hotels by the beach,or too many people visit the beach,it will disturb the sensitive wild life in our oceans,lakes and rivers.Entertainment2021/8/11 星期三32Thank you2021/8/11 星期三332021/8/11 星期三34