九年级英语上册 Unit 2 Saving the Earth Topic 2 All these problems are very serious Section D优质课件2 （新版）仁爱版

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,*,*,*,Unit 2 Saving the EarthTopic 2 All these problems are very serious,.,Section D,仁爱版英语 九年级上,1,What can you learn form the short movie?,Water is important.,Because humans,animals and plants cant live without water.,Movie,2,Nearly,three fourths,of the earth,is covered with,water.,water on the earth,3/4,被,覆盖,/,nl,/,几乎、将近,While there is so much water around the world,we humans,are,still,short of,drinking water,.,So do animals and plants.,Do you know why?,be short of,缺乏,3,1.Why is our earth,thirsty,when of the earth is covered with water?,Because about 97%of the water on the earth is sea water and we cant use it for watering plants or drinking directly.,2.What kind of water can humans drink and use?,Humans can only drink and use fresh water from places including rivers,lakes and,underground,.,()Although the world is hungry,it is even,thirstier,.While,nearly,of the earth is covered with water,we are still short of drinking water.This is because about 97%of the water on the earth is sea water.So we cant use it for watering plants or drinking directly.Humans can only drink and use,fresh water,from places including rivers,lakes and underground.,1,4,Read and answer.,How can we,avoid,a serious water shortage?,First,we should save water and not waste it.,Second,we should protect our water resources and not pollute them.,Third,we should discover ways to reuse water.,(),How can we,avoid,a serious water shortage?First,we should save water and not waste it.Second,we should protect our water,resource,s and not pollute them.Third,we should,discover,ways to,reuse,water.Scientists have made some progress in this field.Today,some large cities are reusing their water.But peoples need for water is increasing day by day.We still dont have enough water.What else can we do?,2,Read Paragraph2 and mark T or F.,()Scientists havent made any progress,in this field.,()Water is,reuse,d nowhere.,()Peoples need for water is increasing,day by day.,F,F,T,5,Listen to,Paragraph3 and fill in the blanks,()The sea_ _ have the best answer.There is _ _water in the sea.But we need to _the salt _from the sea water,.,This is very expensive.If scientists can find cheaper ways to do it,we can _ _ _of the,shortage,of water.,3,seems to,plenty of,take,away,solve,the problem,Q:How can we change sea water into fresh water?,We need to take the salt away from the sea water.,6,Enjoy,Reading,7,be short of,on the earth,use sth for sth/doing sth,avoid sth,make(some)progress,in the field,day by day,seem to do sth,plenty of,take away,the shortage of,1.,缺乏,2.,在地球上,3.,用某物做某事,4.,避免某事,5.,取得（一些）进步,6.,在这个领域,7.,一天天,8.,似乎,/,好像做某事,9.,大量的,10.,带走、拿走,11.,的缺乏,Key phrases,领域,;,场地,田地,1.,2.,3.,4.,5.,6.,7.,8.,9.,10.,11.,one by one,year by year,step by step,一个接一个,一年年,一步步,8,Exercises,If we want to use the sea water,we must _ _(,拿走）,the salt from the sea water.,How can we _(,避免,)a serious water shortage?,We should _(,找到,)ways to reuse water.,Peoples need for water is increasing _(,一天天,).,Although the world is hungry,it is even _(,更渴的,),While _(,几乎，差不多,)of the earth is covered with water,we are still short of drinking water.,take away,avoid,discover,day by day,thirstier,nearly,9,Water pollution,less fresh water,We should protect and save water.,10,How to protect and save water?,Example:,Pass laws(n.,法律,)against water pollution.,Collect and reuse waste water.,5.,6.,_,Turn off the taps in time,Take a shower instead of a bath,stopfrom,pourinto,turn off,tap(,水龙头,),wash clothes/vegetables,clean the floor,throwinto,Stop the factories from pouring waste water into rivers.,Dont throw litter into the water,After we wash clothes or vegetables,we can reuse,the water to clean the floor.,11,To save water is to save life.,Dont let the last drop of water become our tears,12,We learn,:,1.some words:,avoid,discover,thirsty,nearly,law,2.some phrases:,day by day,be short of,3.some sentences:,(1)But peoples need for water is,increasing day by day.,(2)While nearly of the earth is covered,with water,we are still short of drinking,water.,We can:,1.Talk about ways of saving water.,2.Summarize and use the indefinite,pronoun and adverb correctly.,3.Write a proposal.,Summary,13,3.Write a proposal(,提议,)about saving water to all the students in your school.,My dear friends,Water is very important to human beings.Lets do something to protect and save it.,First,_.,Second,_.,Third,_.,Lets try our best to save water and our planet.,_,_,Homework,14,Thank you!,15,