manufacturing(制造).ppt

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1、Water Julee ShenXinsong Middle SchoolWorld Water DayMarch 22ndWhy do we have World Water Day?uAnswer some questions:1)How much of the earth is covered by water?Two-thirds of the earth is covered by water.H2O.Three forms.They are liquid(water),solid(ice)and gas(steam).2)Whats the scientific symbol fo

2、r water?3)How many forms of water are there?What are they?A quiz about waterA quiz about water4)How much water does your body need daily?2 litres of water.For only a few days.It runs into the Huangpu River,then goes to a water treatment works.It comes into our flats through the pipes under the stree

3、t.5)How long could we live without water?6)How does water come into your flat?World Water DayWorldWaterDayison22Marcheachyear.ThedaywasdecidedbytheUnitedNationsin1992.Itsgoalistogetcitizensandgovernmentsthinkingaboutoneofourmostpreciousresources.Thethemeoftheyear2004is“WaterandDisasters”.Waterisnece

4、ssaryforalllifeonEarth,butisalsodangerous.Otherwater-relateddisasters,suchashurricanesanddroughts,causelossoflivesandhugeeconomicdamageeachyear.Thatiswhy“WaterandDisaster”ischosenasthethemeforWorldDay2004.NowWorldWaterDayisinits15thyear.Copingwithwaterscarcity(缺乏)isthethemeofthisyearsWorldWaterDay.T

5、heUnitedNationswanttomakepeoplemoreawareofglobalwatershortages-aproblemthatisgettingworse.Theworldnowisfacingaseriouswatershortage.Sinceoveronebillionpeopleintheworlddonothaveaccesstocleandrinkingwater.InIndiascapital,NewDelhi,millionsdonothaveanyrunningwater.Eveninmorerichneighborhoods,youngandoldw

6、aithoursthenscramblefortrucked-insuppliesthatarenotveryclean.OneyoungwomaninGhana,likemanyinAfrica,Asia,LatinAmerica,andelsewherewalkkilometersforwater.“Ihavetocollectformyfamilyfivetimesaday.”TheUnitedNationsalongwithotherorganizationsareworkinghardtoimprovewaterconditions.FTrue or false:1)World Wa

7、ter Day is on 21March each year.()2)The theme of the year 2008 World Water Day is“Water and Disasters”.()3)Hurricanes and droughts cause loss of lives and huge economic damage each year.()4)Many places such as India and Ghana are short of clean water.()5)The aim of the World Water Day is to get peop

8、le thinking about precious water resources.()FTTTWorld Water DayAnswer some questions1)When was World Water Day decided by the United Nations?In 1992.2)What is its goal?To get citizens and governments thinking about one of our most precious resources.3)Why is“Water and Disasters”chosen as the theme

9、for World Water Day 2004?Because water disasters such as hurricanes and droughts cause loss of lives and huge economic damage each year.World Water DayAnswer some questions4)How often did the young woman in Ghana have to collect water for her family?Five times a day.5)What do you think of the water

10、problem in the world?It is very serious./It is getting worse.(Any reasonable answer is acceptable.)World Water DayWater is usefulAt home,we use water forIn a factory,we use water for drinkingcookingwashingmaking drinkshaving a showerWatering plantsmanufacturing(制造制造)cleaning the machinesdrinkingwash

11、ing the toiletsmaking paperdyeing(染染)Water is usefulIn a hospital,we use water forIn a restaurant,we use water for cleaning the equipmentcooking for patientswashing bedding(被褥被褥)bathing patientscookingwashing the dishescleaning tablesmaking drinksserving customersWater is usefulGroup work:Work in gr

12、oups of five,S1 is in charge of the water in our city,S2 is an ordinary person,S3 is a restaurant owner,S4 is a hospital manager,S5 is a factory owner.The other students must tell S1 why they need water.S1 must decide how long they can have water for each day.(Note:the total,for everyone added toget

13、her,must not be more than six hours per day.)You can use the following sentences:We use water for washing/drinking/cleaningIt is very important becauseIf we dont have water,will Listenandfillintheblanks:Hello,everyone.Mynameiswater,oneofthemostimportant_resourcesintheworld.Imveryproudofmyselfbecause

14、almostnotaskscanbeperformed_me.Mynicknameis_becauseIm_.AlthoughIcanbefoundeverywhereintheworld.Only3percentofmeis_.Worsestill,only_percentofthatisavailableforhumanbeings.So_meandsaveasmuchofmeaspossible!Remember,dontletthetap_whenyoubrushyourteeth._alow-flowshowerheadortakea_shower.Fixanyleakytaps.I

15、noneword,dont_evenadrop,oryoullrunoutofmeinthenearfuture.naturalliquid goldpreciousfresh5protectrunshorterwasteUsewithoutWater shortageListen and answer some questions:1)What is the percentage of the salt water in the world?2)What is the percentage of the fresh water ice?3)Why are water resources li

16、mited?4)What can we do?97 percent.70 percent.Because only 3 percent of fresh water can be used and the population is growing quickly.We can save and protect water.Water shortageWater pollutionTips for saving and protecting water:DosDontsSave and protect waterMake leaflets for Water Day,write some slogans about saving water or protecting water on the leaflets.Save and protect waterAssignment:Do you want to1)Find some more information about water.2)Write a composition about“save water”(at least 60 words).

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