人教版高中英語 必修4unit2 教學案.doc

必修4 Unit2 Working the land教學案 Model 4 Unit2 Working the land -Reading主備人：周相存 審查人：周相存一預(yù)習匯報二學生自學，教師巡導(dǎo)Lead-inThe facts: 1. Today our world houses 6.55 billion people. 2. More than 800 million people go to bed hungry every day.Think about it: What should we do?Pre-readingRice is the main food in all East Asian and Southeast Asian countries. What do you think would happen if tomorrow there was suddenly no rice to eat?_Fast-readingSkimmingPara1 A. Dr Yuans dreams. Para2 B. Dr Yuans personality. Para3 C. Dr Yuans biography. Para4 D. Dr Yuans appearance and his achievement. Scanning Find detailed informationName:_ Nationality _Age:_ Occupation:_Education:_Careful-readingPara.11. What does Dr.Yuan look like?_2. What is his achievement?_Para.21. Why did Dr. Yuan want to increase the rice output when he was young?_2. How does he help rid the world of hunger?_3. Put the following sentences in right order.a. He was born. b. He graduated from Southwest Agriculture college.c. Chinese farmers could only produced 50 million tons of rice.d. 200 million tons of rice was produced by growing his hybrid rice. e. He searched a way to increase rice outputs without expanding （擴大）the area of fields.f. He helps rid the world of hunger by circulating （傳播）his knowledge in less developed countries.Proper order: _Para.31. Which of the following description about Dr Yuans personality is not true? A. He is satisfied with his life because he is now rich and famous. B. He cares little about money and fame. C. He would rather work than lead a comfortable life. D. He enjoys a simpler life than most rich and famous people.2. Find out his hobbies._Para.4Dr. Yuans two dreams.The first dream: _The second dream: _練習：一 Summary. Dr.Yuan leads a simple life. He _ work on the farm _ have a rest. He has struggled for five decades to search for a way to increase _ output. He cares _ about money and fame. Thanks to the discovery of _ , his dream of ridding China of _ is realized. Now, he has another _ -to export his rice so that it can be grown all over the _. Model 4 Unit2 Working the land -Using language主備人：周相存 審查人：周相存一 預(yù)習匯報二 Lead-inDo you know How many kinds of fertilizers farmers use?_三 Pre-readingDo you know about organic farming? _Which kind do farmers use when they are doing organic farming?_四 Fast-reading:Skim and match the main idea with each paragraphPara.1 Problems caused by chemical fertilizers.Para.2 The advantages of Organic farmingPara.3 Other methods to keep the soil fertile.Para.4 The disadvantages of chemical fertilizers五 Careful-reading:Para.1 Why did farmers like to use chemical fertilizers?_Para.2 What problem can be caused by using chemical fertilizers?1. They damage the land by_2.They can lead to _3.Food may look beautiful, but inside _Para.3 1. What is organic farming?_2. What do organic farmers prefer using?_Para.4Methods:Using _ waste from animals as fertilizerChanging _ in each field every few years Using _ of soil to plant crops Planting _ between crops 課后作業(yè)：背誦下列重點句子：1.Many of these chemicals can lead to cancer or other illnesses.2. They look beautiful, but inside there is usually more water than vitamins and minerals.3. They focus on keeping their soil rich and free of disease.4. A healthy soil reduces disease and helps crops grow strong and healthy.5. This also keeps the air, soil, water and crops free from chemicals. Model 4 Unit2 Working the land -Language points主備人：周相存 審查人：周相存 一 P9 More than 800 million people go to bed hungry every day.hungry在本句中為形容詞作_, 描述_的狀態(tài)。The old goat fell down to the ground dead. 此句中_跟hungry的用法相同。She was lying in bed awake all the night. 此句中_跟hungry的用法相同。劃出下列句子中作狀語的形容詞，并翻譯句子。(1)Overjoyed，he rushed out of the house(2)Much interested，he agreed to give it a try.(3)Ripe（When ripe），these apples are sweet(4)He spent 7days in the wind and snow，cold and hungry.(5)Helpless，we watched the house being destroyed before our eyes三P10 Using his hybrid rice, farmers are producing harvests twice as large as before. twice as large as 翻譯為_, 是倍數(shù)的表達方式。(綠色通道P30)I have three times as many as you.The Yangtze River is almost twice longer than the Pearl River. The earth is 49 times the size of the moon.由以上句子，請歸納出表示倍數(shù)的表達方式。 (1) A+be + _ +as+ _+as +BAsia is four times as large as Europe.(2) A + be +_+_+than+BAsia is three times larger than Europe.(3) A+be+_+the+名詞(size/length/height/depth/width)+_+BAsia is four times the size of Europe.練習：仿照例句，用三種方式造句。這張桌子是那張桌子的三倍長。(1)_(2)_(3)_2. 珠穆朗瑪峰(Mount Everest)比古劍山高7倍。(4)_(5)_(6)_四P10 He would much rather keep time for his hobbies.would rather do sth. _Im not sure，but Id rather think SOI would rather believe him.拓展：1. would rather do.than do. = prefer doing to doing= prefer to do.rather than do. _2. would do.rather than do._3. would rather (that)sb. did/had done_(虛擬語氣)翻譯下列句子：1. Tom would rather read than talk=Tom prefers _ to _=Tom prefers _ rather than_2. We would rather rent the house than buy it .=_=_3. I would buy a computer rather than a motor bike.4. I would rather you came tomorrow.5. 我寧可在家洗衣服而不愿去購物。_6. 我寧愿你昨天沒有買那枚戒指。_7. 他寧愿死也不戒煙。_五P10 In 1974, he became the first agricultural pioneer in the world to grow rice that has a high output. to grow rice 是動詞不定式做_,修飾_.Three Americans became the first persons ever to cross the Atlantic by balloon.He is the best students to do the experiment.劃線部分都在句中作_, 由上述句子可總結(jié)出，動詞不定式常用在被_, _修飾的名詞后做定語，且這些名詞與動詞不定式有邏輯上的_關(guān)系。1. 他總是最后離開辦公室的人。He is the last one _ _ _ _.2.她是第一個買車的人。She is the first person _ _ _ _.1. 這是解決問題的最好方式。This is the best way _ _ _ _.六P10 Thanks to his research, the UN has more tools in the battle to rid the world of hunger. 1. thanks to 幸虧，由于Thanks toI had tied then the safety belt.Thanks to your explanation,its clear to me now.多虧了你的幫助，我們成功了。_ _ _ _ we were successful.同義辨析：due to: 用于較莊重的書面語中，側(cè)重“起因于”，在句中多作表語，有時作狀語。owing to: 可以和due to換用，但在句中多作狀語，也可作表語。because of: 著重某個結(jié)果的原因，在句中通常作狀語。thanks to: 突出一種感激之情，含“多虧”意味。2. rid v. 使擺脫Its not easy to rid oneself of a habit.Hes gone,and Im glad to be rid of him.We have to get rid of these old newspapers.由以上句子，可歸納出rid的搭配：1) _2) _3) _七P13 regret Weve always regretted selling the farm.I regret to tell you that you cant sign your name on the paper.I feel no regret about the choice I had made.由以上兩句，可歸納出regret的搭配:_1. 很遺憾地告訴你，你已經(jīng)被解雇了。I _ _ _ you that you have been dismissed.2. 我相信你會為離開巴黎而后悔的。I believe you will _ _ Paris.3. 我后悔沒有聽她的勸告。I _ _ _ her advice.4. 他說他對離開大學并不后悔。He said he had no _ _ _the university.拓展：動詞不定式或動名詞都可做賓語的動詞和詞組： stop, mean, try, be afraid of, remember, forget, allow/permit/advise sb. to do/doing 八P14 They focus on keeping their soil rich and free of disease. 1. focus on _The noise made it hard for me to focus on work.2. 猜猜劃線短語的意思：For me, your explanation is a bit out of focus.I got her in focus before I took the photo.in focus _out of focus_3. 找出同義短語You must focus on your teacher in the class. You must pay attention to your teacher in the class. You must concentrate on your teacher in the class.九P14 This also keeps the air, soil, water and crops free from chemicals. Keep free from/of _這種藥可以止頭痛。This medicine can _ you _ _headache. 拓展：1. free from/of 免于，沒有，不受.影響 此處的free是adjHe is free from any sense of responsibility.The town is free from pollution.At last he was free of his sister.2. free.from/of. 把.從.消除/解除These exercises free the body of tension.1)把表面蓋好，以免塵土落在上面。Keep the surface _ _ dirt _ putting a cover over it.2)我們一定要讓世界擺脫饑餓。We must _ _ _ _ hunger.3) 街上的落葉已打掃干凈了。The streets have been swept _ _ leaves.練習：1. Iv tried very hard to improve my English. But by no means _ with my progress.A. the teacher is not satisfied B. is the teacher not satisfiedC. the teacher is satisfied D. is the teacher satisfied2. -What a mistake!-Yes. I _ his doing it another way, but without successA. was suggesting B. will suggestC. would suggest D. had suggest3. _ a new policy, we are now living a happy life.A. Thanks to B. Because C. For D. Thanks for4. Dina, _ for months to find a job as a waitress, finally took a position at a local advertising agency.A. struggling B. struggled C. having struggled D. to struggle5. -Shall we go skating or stay at home? -Which_ do?A. would you rather B. do you rather C. will you rather D. should you rather6. The house was too expensive and too big._, Id grown fond of our little rented house.A. Besides B. Therefore C. Somehow D. Otherwise 7. The new stadium being built for the next Asian Games will be _ the present one.A. as three times big as B. three times as big asC. as big as three times D. as big three times as8. -Robert is indeed a wise man.-Oh, yes. How often I have regretted _ his advice!A. to take B. taking C. not to take D. not taking9. Practising Chinese kung fu can not only _ones strength, but also develop ones character.A. bring up B. take up C. build up D. pull up10. E-mail, as well as telephones,_ an important part in daily communication.A. is playing B. have played C. are playing D. play11. -Did you hear what the lady said? - No, I heard nothing. My attention _the speakers beautiful dress.A. was focused on B. paid to C. was focused to D. devoted to12. Relaxation exercises can keep your body _ tension.A. free up B. free from C. free for D. free withModel 4 Unit2 Working the land -Grammar主備人：周相存 審查人：周相存早讀任務(wù)： P96 Unit2 單詞 P10 reading 優(yōu)化設(shè)計unit2 語法預(yù)習：1. 找出課文中下列句子。(1) Since then, finding ways to grow more rice has been his life goal.(2) As a young man, he saw the great need for increasing the rice output.(3) He enjoys listening to violin music, playing mahjong, swimming and reading.(4) Spending money on himself or leading a comfortable life also means very little to him.2. 在上述句子中，勾出V-ing結(jié)構(gòu)，并指出它們在句中作什么成分。課堂活動：1 V-ing form1 Listening to music is one of my favorite hobbies.2 Joan suggested asking her father for his opinion.3 The man left the party without saying goodbye to the host.4 The squirrel was lucky that it missed being caught.5 I remember having told him the news.6 Peters being late made the teacher angry.仔細觀察以上句子，V-ing在這些句子中相當于_詞的作用，但是又有動詞的特征。在句子中作_和_成分。動詞-ing形式不能單獨作謂語, 沒有人稱和數(shù)的變化, 但可以有自己的賓語和狀語, 還有時態(tài)和語態(tài)的變化。2 V-ing做主語1) To him, swimming is much fun.2) Walking in step is not easy.3) Its no use complaining.4) Its no good worrying about it.5) Its worthwhile making the experiment.6) Not having been trained as a dancer is my one regret.勾出V-ing并歸納：1. V-ing 做主語，謂語動詞用_數(shù)。2. 3),4),5)句中，it是_,真正的主語是_.句型1. It+be +no use/ no good/ useless doing 做.是沒有用的/沒有好處的句型2. It +be+ worthwhile/ a waste of time (in)doing 做.是值得的/浪費時間的3. 有時態(tài)和語態(tài)的變化。否定形式為_ 語態(tài)時態(tài)主動語態(tài)被動語態(tài)一般式doing完成式Having been done練習：完成P13 exercise 23 V-ing做賓語1) As a young man, he saw the great need for increasing the rice output.2) Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields.3) He enjoys listening to violin music, playing mah-jong, swimming and reading.4) Dr Yuan awoke from his dream with the hope of producing a kind of ric