manufacturing(制造).ppt

1、Water,Julee Shen Xinsong Middle School,World Water Day,March 22nd,Why do we have World Water Day?,Answer 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 scien

2、tific symbol for water?,3)How many forms of water are there? What are they?,A quiz about water,A quiz about water,4)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

3、the pipes under the street.,5)How long could we live without water?,6)How does water come into your flat?,World Water Day,World Water Day is on 22 March each year. The day was decided by the United Nations in 1992. Its goal is to get citizens and governments thinking about one of our most precious r

4、esources. The theme of the year 2004 is “Water and Disasters”. Water is necessary for all life on Earth, but is also dangerous. Other water-related disasters, such as hurricanes and droughts, cause loss of lives and huge economic damage each year. That is why “Water and Disaster” is chosen as the th

5、eme for World Day 2004. Now World Water Day is in its 15th year. Coping with water scarcity(缺乏) is the theme of this years World Water Day. The United Nations want to make people more aware of global water shortages - a problem that is getting worse. The world now is facing a serious water shortage.

6、 Since over one billion people in the world do not have access to clean drinking water. In Indias capital, New Delhi, millions do not have any running water. Even in more rich neighborhoods, young and old wait hours then scramble for trucked-in supplies that are not very clean. One young woman in Gh

7、ana, like many in Africa, Asia, Latin America, and elsewhere walk kilometers for water. “I have to collect for my family five times a day.” The United Nations along with other organizations are working hard to improve water conditions.,F,True or false:,1)World Water Day is on 21March each year.( ) 2

8、)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 people thinking about precious

9、 water resources. ( ),F,T,T,T,World Water Day,Answer some questions,1)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 for World W

10、ater Day 2004?,Because water disasters such as hurricanes and droughts cause loss of lives and huge economic damage each year.,World Water Day,Answer some questions,4)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 probl

11、em in the world?,It is very serious./ It is getting worse. (Any reasonable answer is acceptable.),World Water Day,Water is useful,At home, we use water for,In a factory, we use water for,drinking cooking washing making drinks having a shower Watering plants,manufacturing(制造) cleaning the machines dr

12、inking washing the toilets making paper dyeing(染),Water is useful,In a hospital, we use water for,In a restaurant, we use water for,cleaning the equipment cooking for patients washing bedding(被褥) bathing patients,cooking washing the dishes cleaning tables making drinks serving customers,Water is use

13、ful,Group work: Work in groups 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:

14、 the total, for everyone added together, must not be more than six hours per day.),You can use the following sentences: We use water for washing/ drinking/ cleaning It is very important because If we dont have water, will ,Listen and fill in the blanks: Hello, everyone. My name is water, one of the

15、most important _ resources in the world. Im very proud of myself because almost no tasks can be performed _ me. My nickname is _ _ because Im _. Although I can be found everywhere in the world. Only 3 percent of me is _. Worse still,only _ percent of that is available for human beings. So _ me and s

16、ave as much of me as possible! Remember, dont let the tap _ when you brush your teeth. _ a low-flow showerhead or take a _ shower. Fix any leaky taps. In one word, dont _ even a drop, or youll run out of me in the near future.,natural,liquid gold,precious,fresh,5,protect,run,shorter,waste,Use,withou

17、t,Water shortage,Listen 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 limited? 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 shortage,Water pollution,Tips for saving and protecting water:,Dos,Donts,Save and protect