Lesson1Water.ppt

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1、Unite 3 Lesson 1 waterH2OWhats water used for in Pictures?It is used for drinking1234It is used for recreationIt is used in farming.It is used in industry/to make electricity.Be used for sth/doing sth:+用途Be used in sth :+领域、方面Be used to do sth :被用来做某事Water:Water is used to water flowers/for watering

2、 flowers.Water is used to cook.Water is used in farming.Water is used in recreation.Water is used to wash faces and brush teeth.Water is used to put out fire.Listening Paragraph 1Water is one of the most important _ _ in the world.It is used for _ and _.It is also used in _ _.It is so important that

3、 few everyday _ can be _ without waternatural resourcesdrinking recreationfarming industryperformedtasks=almost no everyday tasks can be performed without water.perform everyday/daily tasks进行日常的工作进行日常的工作my everyday work75 percent of the Earths 1)_covered with water2)_ percent of the Earths water3)_

4、water4)_ percent of the Earths waterfresh water5)_ percent of fresh waterice6)_ percent of fresh water7)_8)_ percent of fresh water9)_ in rivers and lakessurface97salt37025underground5availableListen:Why is water called liquid gold?Question 2:How much water can be used?语言点1.Although three-fourths of

5、 the Earths surface is covered with water.“分数或百分数分数或百分数+of+名词名词”构成的词组作主语时，谓语动词的单构成的词组作主语时，谓语动词的单复数形式由复数形式由of 后面的名词后面的名词决定。决定。Two-thirds of the students _(is/are)from China.2.Fresh water is so precious that it is called liquid gold.1）这个男孩叫）这个男孩叫TomThis boy is called/named Tom.2）这个名叫）这个名叫Tom 的男孩是我的同学的

6、男孩是我的同学。The boy called/named Tom is my classmate.Listen:What can we do with the limited water?Here are some _for saving and _ water.Dont let the _ _when you brush your teeth or wash your face.Take a short _.Fix any _tap.Do not _rubbish or _dirty water into rivers and lakes.Remember,the less water we

7、 _ or _,the more we will have for tomorrow.tipsprotecting tap runshowerleakythrow pourwaste pollutethe+比较级，比较级，the+比较级比较级:越。越。越。越。Question 3:What can we do with the limited water?Dont let the tap run when you brush teeth or wash face.Take a shorter shower.Fix any leaky tap.Use a water-saving tap.Don

8、t throw rubbish into lakes.Dont pour waste water into rivers.Writing：1.What is water?2.Why is fresh water precious?3.What can we do to save and protect water resources?Writing tips1.Outlines:1)heading:2)body:3)conclusion:2.Phrases and expressions(仅仅供参考供参考):the importance&the advicethe problem of was

9、ting water on campusasking everyone to take actionthe source of life/liquid goldsave water/reuse waterturn off the tappour waste intoreduce the pollution to protect water resourcesThe less water,the moreIn our school,some students are quite careless when using water.They waste water a lot.The world

10、is not hungry,but it is thirsty.It seems strange that nearly 3/4 of the earth is covered with water while we say we are short of water.Why?Because about 97%of water on the earth is sea water which we cant drink or use for watering plants.Man can only drink and use the 3%-the water that comes from ri

11、vers and lakes.And we cant even use all of that,because some of it has been polluted.Now more water is needed,but the problem is:Can we avoid a serious water shortage later on?Firstly,we should all learn how to save water.Secondly,we should find out the ways to reuse it.Scientists have always been s

12、tudying in this field.Today,in most large cities,water is used only once and then runs to the sea.But it can be used again.Even if every large city reused its water still there would not be enough.What could people turn to next?The sea seems to have the best answer.There is a lot of water in the sea

13、.All that needs to be done is to get the salt out of the sea water.This is expensive,but its already in use in many parts of the world.Scientists are trying to find a cheaper way of doing it.So you see,if we can find a way out well be in no danger of drying up.III.Read the following passage and finish the task below.123Saving water,lets start now!Saving water,lets start now!