牛津英语上海版八年级下册教学.pptx

A Guessing game:What am I?I have no color,smell or shape.My other name is O2.I am produced by green plants.I am around you.You breathe in me any time.oxygenA Guessing game:What am I?I have no color or smell.I can change into gas or water.I am very hard.You can see me in fridge.iceA Guessing game:What am I?I have no color,smell or shape.My other name is H2O.I can change into ice or gas.I come from the rivers,lakes and seas.You can see me every day.waterThree forms of substance(物质)oxygen -gasice -solid water -liquidEvery day people need me for drinking,Water is very important in peoples life.Every day people need me for drinking,washing,cooking and.How much do you know about water?Lets do a quiz about it.1.You could live without water for a few _.A.days B.weeks C.hours2.Your body needs about _ litres of water daily.=every day A.two B.eight C.four3.When you exercise,you need _ water.A.more B.less C.the same4.When you freeze water,it becomes a _.A.liquid B.solid C.gas5.About _ of Earth is covered by water.A.one third B.two thirds C.one half6.The scientific symbol for water is _.A.H2O B.H2O2 C.HO2%12345Look at the picture and tell the class:Do you know the recycle of water?cloudmountain riverseastreamWater talkWater is more valuable than gold.Before you read the story,look at the title of the story and the picture,and then answer this question.Who are talking in the story?The girl and the drop of water.Read through the story quickly and answer:What did the water and Daisy talk about?A.They talked about what the water is.B.They talked about the waters journey(旅途旅途).C.They talked about what Daisy and Benny did in the bathroom.A.The water tells Daisy to turn the tap off,and she is surprised.B.Daisy tells Benny that she has talked to the water,and Benny thinks she is weird.C.Daisy is brushing her teeth with the tap on.D.The water tells Daisy about its long journey from a cloud in Yunnan and where it will go.It reminds(使使想起想起,提醒提醒)her not to waste or pollute water.P1P2-3P4-14P15-17Read the story and match the main idea with each part.VocabularyThe long journeytapsinkdrainpipesBacksewagesewage plantBackstreamreservoirwater treatment works This map shows the waters journey.Read the story and mark the names of different places on the map.cloudstreamDongjiang Riverreservoirwater treatment workssewage plantseaDaisys bathroomBackWhere?What did it do there?1 In Yunan2 mountain-Dongjiang River3 reservoir4 water treatment works125 under the street6 bathroom7 a sewage plant1 2 8 the seawill rise from the sea to the skyfloated comfortably in a clouddropped into a stream and sped downrelaxed for a few dayswas given a thorough cleaningwas added a few chemicalstraveled in the pipescame out of the tapwas cleaned upwas pumped into the river101 Why was the voice impatient?1 Why was the voice impatient?BecauseBecause Daisy was Daisy was wasting waterwasting water.2 Why did Daisy nod her head?2 Why did Daisy nod her head?BecauseBecause she she knewknew the Dongjiang River the Dongjiang River.3 Why did the water go to a treatment works?3 Why did the water go to a treatment works?BecauseBecause it it was dirty after itswas dirty after its journey.journey.4 Why did the water say,“I will be back in 4 Why did the water say,“I will be back in the sea again?the sea again?BecauseBecause it it came fromcame from the sea the sea in the firstin the first place.place.5 Why did the water say it was like liquid 5 Why did the water say it was like liquid gold?gold?Because Because it believed that it believed that it was preciousit was precious.6 Why did Daisys brother think she was6 Why did Daisys brother think she was weird?weird?Because Because she said,she said,I was talking toI was talking to a drop of water.a drop of water.1.Water was pouring into the sink.2.The tap was on.3.The voice sounded angry.4.People cleaned me up.5.I waited there until you called me.6.People pump me out into the river.7.Remember not to waste or pollute water.8.Water is precious,like liquid gold.Important sentences1.听起来不耐烦听起来不耐烦2.跌入小溪跌入小溪3.彻底清洗彻底清洗4.添加添加5.源源流入源源流入6.在旅程的终点在旅程的终点7.浪费水浪费水8.欣赏风景欣赏风景enjoy the viewUseful phrasessound impatientdrop into the streama thorough cleaningaddto pour intoat the end of the journeywaste water 10.把把净化净化11.记着不要做记着不要做12.等一下等一下13.开、关水龙头开、关水龙头14.点头、摇头点头、摇头15.当初当初本来本来16.比金子更珍贵比金子更珍贵Useful phrasesclean upremember not to dowait a minute turn on off the tapnod shake ones headin the first placemore valuable than goldLook at the pictures and discuss in groups.If there is no water,Living things cant live without water.Water is unhappy because people.Water is crying for help!What can we do to help it and save ourselves?1.Discuss what we should do or shouldnt do to protect water.2.Make a list about what we can do.3.The group leader need to give a presentation.When you are enjoying others performance,remember to write down your comments and marks by using the forms.What should we do to protect water in our daily life?Shouldnt do Should do*wash clothes under running water*take a shower with water running for a long time*reuse water*plant more trees*protect rivers and lakes*fight against water pollutionListen to the coins story and number the pictures.123456781.Hi!I am a one-yuan coin!I was born in a mint.That is where new money is made.I was lovely and shiny then.I was with lots of other coins.2.They put me in a bag and took me to a bank.I sat in that bag at the bank for a few days.3.Then a cashier at the bank gave me to a customer.He needed some bags of coins for his shop.4.That man had a cake shop.He gave me to a woman.She was buying some cakes.She gave him 50 yuan.I was part of her change.6.I stayed on the road for a long time.I got very dirty.Then an old man found me.He was very happy to see me!7.The old man took me to a food stall.He bought some food and gave me to your mother.She gave me to you as pocket money.8.Then you washed me to make me clean again.I felt so happy that I decided to tell you my story!5.That woman put me in her purse.But later,she dropped her purse on the ground,and I rolled away.She found her other money,but she did not find me.1.一元硬币一元硬币 纸币纸币2.负责负责3.流程图流程图4.至少至少 至多至多a one-yuan coin note be in charge ofa flow chart at least at mostUseful phrases常见的常见的 不可数名词不可数名词 小结：小结：money,paper,bread,meat,music,coffee,water,work,smoke,fruit,sugar,food,beef,traffic,gas,weather,fire,rain,wind,snow,rice,hair,news,air,tea,information（信息）（信息）,fun,sand（沙）（沙）,knowledge（知识）（知识）,homework,housework（家务活）（家务活）只能只能 修饰可数名词修饰可数名词 的词或短语：的词或短语：a few,few,several,many,a number of只能只能 修饰不可数名词修饰不可数名词 的词或短语：的词或短语：a little,little,a great deal of,much既既 可修饰可数名词又可修饰不可数名词可修饰可数名词又可修饰不可数名词 的词或短语：的词或短语：some,a lot of,lots of,plenty of,enough,mostLanguage A1.There is no water in the pool.2.There are no swimmers in the pool There is a lot of water in the pool.3.There are many a lot of swimmers in the pool.4.There are a few not many swimmers in the pool.Keys to the exercise:B1Jane:How many bananas are there?Albert:There are a few.Jane:How many apples are there?Albert:There are a lot.Jane:How much bread is there?Albert:There is none.Jane:How much tea is there?Albert:There is a little.Jane:How many onions are there?Albert:There are none.B2a lot ofsomea fewnoC12.Hes got enough.3.Hes got too few.4.Hes got too many.5.Hes got too much.6.Hes got too much.7.Hes got enough.8.Hes got too little.Keys to the exercise in More practice&Using EnglishMore practice1.I do not agree with it because it is how well you wash your clothes,not how much water you use that makes them clean.2.I do not agree with it because a lot of groundwater is dirty and must be cleaned before we can drink it.3.I do not agree with it because it is better to get out of the shower as soon as you are clean.4.I do not agree with it because a dripping tap can waste a lot of precious water,even if it does not cost a lot of money.5.I do not agree with it because the water in the sea is not drinkable.Using English1.two thousand2.three thousand five hundredA3.May4.four thousand5.April6.MarchC1.seven2.two3.works4.travels5.watches6.three7.other8.one hourThank you for listening!