高二英语下学期Unit13 The water planet-Speaking 人教版 课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,The water planet,Unit,13,Period 1,Warming up,Listening,Speaking,Dear 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 forms 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 _,water,Guess the riddle,.,It,s very important to all the animals and plants.It,s also important to human beings.It,s liquid at room temperature.Every day you keep in touch with it.You can,t live without it.(a thing)T:What,s it?,Its_,water,Collect as many words as possible related to water.,water,river,lake,ocean,fish,sweat,ice,steam,rain,properties,What properties or characteristics do you know about water?,colorless,tasteless,odorless,three forms,feeling wet,absorbing heat,dissolving,What,property of water,does each of the four experiments illustrate?,What causes this phenomenon?,Whats this phenomenon related to?,Group work,Lets do some experiments to know,some of the properties of water.,Experiments exploration,Experiments,1,2,3,4,1,Experiment 1 shows how,air pressure,causes a piece of thick paper to,cling(,粘着）,to,an upturned glass of water.,1,Experiment 2 illustrates,（,说明）,how substances,（,物质）,with different,density,（,密度）,behave when placed in the same container.,2,Experiment 3 is an example of how water,dissolves,（,溶解）,substances and objects.,3,Experiment 4 illustrates some of the differences between,salt,water and,fresh,water.,4,What other properties of water do you know?,What do you think causes the following,phenomena?,We can get a lot of nutrients in the soup.,Wood floats on water while iron sinks.,The coastal areas are often neither too hot nor,too cold.,Why can some living things live at the bottom,of the ocean where there is no sunshine?,Common sense,Do you like water,?,How much do you know about water?,Listening,Part 1:,Who tells,the story in the poem?,2.What does one of the sailors 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 to bring good luck to the ship.,Part 2:,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 must,always tell his story,He has to tell his story to everyone he meets.,(The“mysterious guest”is the mariner.),Speaking,Without water,what would happen?,Without water,life would not exist.,Water is a must to life.,22,nd,March,World Day for Water,is established on 22 December 1992.It is to remind everybody that we should try efforts to provide clean drinking water and know that the water problems are serious and solutions can help make the difference.,Water is,being used for,Electricity,Agriculture,Home use,Industry,Transport,Entertainment,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 following questions for your reference.Dont forget to make notes.,Group work,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.,.,Water can be used to make electricity.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.,Electricity,Plants need water to grow.In dry areas,We have to bring extra water to grow 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.,Agriculture,In our homes,We use water to cook,clean,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 use,Factories of all kinds use a lot of water.Sometimes water is used to make a product,but in 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.,Industry,We use lakes,rivers and oceans 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 area.,Transport,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.,Entertainment,Thank you,