英語教案unin4 Feed the world

1、英語教案unin4 Feed the worldStepI:IntroductionGood morning,class.First,I will ask you a question: “Do you often feel hungry?”Wanglin,pleaseWhile, maybe you dont often feel hungry,because you have plenty to eat.But in some poor areas in the world,many people even starve to death.Is that true? Now,please

2、open your book to page 20And find out the answer: “How many people starve to death each year?” I only give you one minute.If you find out the answer, put up your hand.Lets see who is the first.StepII: Fast reading;A.Scanning:Find out the answer to the following question within two minutes:“why is fa

3、rmland being lost?”B.Reading Comprehension1. What can be dome to increase the food supply?A.to plant new trees.B.To reduce the lost in storageC.To build more and more farmsD.To develop new plants for food2. Why is so much food lost in storage?A. The food is thrown away by people.B. People pay less a

4、ttention to the food storeC. The food is damaged by rainD. The food goes bad3.Food stores are frequently ruined by rain or damp.What does “ruin” mean?A.removed B.cleaned C.damaged D.washed away4.What kind of plants are scientists developing ?A.The plant which can be grown on the moonB.The plant whic

5、h are likely to be attacked by pests.C.The plant which can be planted in poor soilD.The plant which is heavier.StepIII.Fill in blanks(通過這個練習(xí)，既可以鍛煉學(xué)生語境中對詞匯的領(lǐng)悟力，又是高考完型填空的基礎(chǔ)訓(xùn)練，課堂實(shí)踐證明效果較好，建議教師選用)Now, I will give you another seven to eight minutes to read the text in details.Please pay special attention

6、to the key words and phrases.Then Ill ask you to close your books and fill in blanks without consulting anything.1.Half the worlds workers earn their living by _.(farming)2.The problen is how to feed a growing world population of _6 billion. (over)3.Only about 11% of the earths land surface is _ for

7、 growing _.And this area is becoming smaller day_ day. (suitable,crops,by)4.Thats why the Chinese people are making great _to _ their farmland.(efforts,protect)5.Farmland is being lost for several reasons.First,it is_built _.(being,on)6.Its well known that pests continue to eat crops,_damage. (causi

8、ng)7.The FAO has worked out that up _ 30% of food is lost in storage. (to)8.Its thought that 500 million people in the world do not have enough to eat, thats about one _ten. Every year about 40 million people_ to death. (in ,starve)9.They are also developing new types of plants that can be grown in_

9、 soil or even sand, and that are less_ to be _by_ and diseases.( poor, likely ,attacked ,pests)StepIV. Diction1.In this text, did you notice the word “farming”? Whats the difference between “farming” and “farm”? Lets look at a sentence first.The farmers live by _.(farm,farming) (Which word will you

10、choose?)Yes,“farming” is the correct word.Farm: an area of land, together with its buildings.Farmland: only the land for farming.Farming: working on the farm.To farm : to do farm work1).They like to eat _. 2).They live by_.(fish,fishing)2.work out: The FAO has worked out that up to 30% of food is lo

11、st in storage.a)work out 一詞的“新詞義”曾經(jīng)出現(xiàn)在20xx年高考“單項(xiàng)真空”中，現(xiàn)在，可結(jié)合Lesson14的內(nèi)容，試用work out的“新詞義”造句如下：Various things have been done to increase the food supply in the world. But at first they all seemed unlikely to be of any efficiency at all. However, dozens of years have passed and most of the efforts seem

12、to be working out far better than most of the optimistic people expected.b)work at, work on, work outwork at和 work on都有“從事”的意思。在此意義上，兩者可以換用。如：Is Tom still working at / on the new novel that he promised?work at 還有“在工作”的意思。如：How long have you been working at this school?work on 還有（激起人的.感情等）“對起作用，影響”的意

13、思。如：The sight of so much suffering worked on our hearts so that we were filled with pity.這么多受難的情景時震憾了我們的心，我們心中都充滿了同情。work out 表示“計(jì)算出，解決（問題）”等意思。如：Can you work out how much it costs to feed a common family?I can t work out this sum.work out 還有“想出，弄清楚（常用于否定句）”等意思。如：We must work out a better method of

14、saving money.I cant work out the meaning of this poem. 1. order的用法StepV.PhrasesBe suitable for day by day up to 30% ruin in storage starve to death be likely to do attack various things參考文檔1只有11%的地球表面適合種莊稼(be suitable for)，而且這個面積還在日漸減小(day by day)。高達(dá)30%的食品在存儲時丟失(up to)。存儲的食品被雨，老鼠不斷的毀壞(ruin,in storag

15、e)。每年都有大量的人們因饑餓而死亡(starve to death)。人們正在嘗試很多辦法來增加糧食供給。科學(xué)家正在發(fā)明新的植物，這些植物不容易被害蟲侵害(attack,pest) 。參考譯文：Only 11% of the earths land surface is suitable for growing crops.And this area is becoming smaller and smaller day by day.Its worked out that up to 30% of food is lost in storage.Food stores are frequently ruined by rain ,or eaten by mice.E