旧人教高一英语必修UNIT19全单元教案.doc

1、The first periodI. Teaching aims:Talk about modern agriculture and its effects on peoples lifelearn how to give somebody advice and make decisions.learn to read statistical graphsSimilar dialogue presentation with new words and expressions used withinII. Teaching aids: tape recorder, slidesStep I Wa

2、rming up 1. Group Work: get Ss to work in pairs, and make a list of food which his grandparents and his parents and himself like to eat. Then Ss find out the difficulty among them. NameBreakfast Snacks Lunch Dinner Grandma/ grandpa Mother/ father yourself 2. let Ss look at the chart in the book, and

3、 ask them some questions:T: “ What the graph is about, look at the words above or below the graph? ”Ss: “ Growth of major products 1991-95 compared with 1986-90 percentages ”T: “ What kind of food were shown on the chart? ”Ss: “ There are grain, cotton, oil, sugar, meat, fish, fruit. ”T: “ What is s

4、hown on the y-axis?”Ss: “ the percentage in SB ”3. let Ss answer the following questions in the book. If possible, students can discus three questions in groups.Question 1: How are peoples eating habits changing over the years? Why do you think this happens?(earn more money; learn about healthy food

5、; eat more nutritious fruit juices; eat more fish and meat, etc.)Question 2: How has agricultural produce changed during these years? What do you think caused these changes?(various farming products; make more money; new and advanced farming technique,etc. )Question 3: What effects do you think the

6、changes in eating habits will have on agriculture or nature?(people need more meat and fruits; farmers need more farmland to grow different crops and produce different foods; farmers need to raise more poultry(家禽), etc. )4. Teacher sum up in a few wordsT: “In words, changes in agricultural produce s

7、hows that our living habit and eating habit has improved. Farmers have a different and happy life because they can grow different crop to meet peoples need.”Step II Listening1. lead- inT: “ I often find the expression return grain plots to forestry in newspapers, do you know what does it mean in Chi

8、nese? ” (teacher write the expression on the blackboard)Ss: “ In Chinese, 退耕还林.”T: “ Why do you know farmers should do so? ”Ss: “ They must protect forests. / in order to protect forests. ”T: “ Have you even had experience of sandstorm in Beijing ? how about sandstorm? ”Ss: “yes , it is so terrible

9、weather.”T: “ What cause sandstorm? ”Ss: “ Many forests are destroyed, the environmental problems is serious.”T: “How can farmers make the land fertile?”Ss: to use chemical fertilizers to improve the soil.2. T introduce: “ We will hear a short text. The listening text is about the history of farming

10、, some of its problems and some solutions or alternatives to these problems.” 3. let Ss listen to the tape the first time, without taking notes. Then, ask them to look at Exercise 1. Make sure they understand all the words. Then, ask the students to listen again, and tick the items the listening tex

11、t is about.4. let Ss listen to the tape again and ask them to finish Exercise 2.5. get Ss listen to the tape for third time and fill in the blank in the Exercise 3.6. If time permitted, teacher can get Ss to listen another listening text and do some exercises.7. If time permitted, teacher get Ss to

12、finish the exercises in Workbook/ Listening (page 107)Step III. Speaking1. Group Work: get Ss to work in groups and divide Ss into groups of five. Each group , each topic. Let them act as each role. And discuss why we should grow wheat/ sugarcane/ wheat/ trees or raise pigs.2. let Ss make sentences

13、using the following expressions:In my opinion you shouldIf I were youAs far as I can see the best thing would be to Wouldnt it be better if ?I think he is rightWe have to make a choiceWe cant do both, soThe other idea sounds better to me 3. Talking (Workbook, page 108) let Ss work in small groups of

14、 five and assign any of the three topic to the groups give Ss time to read the three descriptions and ask questions about them. ask Ss to discuss these issues in a way that they develop and give their own opinion about the issues at hand.Step IV. SummaryTeacher explain some language points in the bo

15、ok.what do you think cause these changes ? do you think 是插入语，经常位于疑问词（组）后，如Where do you think the old lady is?有时也可以放在句尾。例如：What is it, do you think? cause v. = be the cause of (sth); make happen 造成（某事物）；使发生如： Smoking can cause lung cancer. 吸烟可导致肺癌。Shes always causing trouble for people. 她总是给人添麻烦。. Ma

16、ke a decision“做决定，决定” 如：I make a decision to learn English hard. Because of bad weather, they make a decision to put off the meeting. You want to use the land in the best way possible and do the best for everybody in the village 为了村里的每一个人，你想尽自己最大的努力，以最好的方法来使用这块地。In the best way possible 尽能最好的方法。Poss

17、ible表示“尽可能最”do the best表示“尽力”。如：She do the best to help the old lady. 她尽力地帮助这个老妇人。Step V Exercise1. finish the exercises in Workbook, page108.2. let Ss finish the follow exercises. （show slides）1.He said he was going to _ a lot of pigs on his far. (B)A. rise B. keep C. grow D. support2. My father st

18、udies _ in his spare time. （C）A. farm B. farmer C. farming D. to farm3. He is _ interested in English. He often works at it until _ into the night. (A)Adeeply; deep Bdeep; deeplyCdeep; deep Ddeeply; deeply4. They _ chickens, cattle and crops as well on the farm. (A)A. raise B. feed C. keep D. bring

19、up5. My brother stayed at home studying English _ going to the cinema. (B)A. instead B. instead of C. without D. didnt6. The accident was my fault, so I had to pay for the damage _ the other car. (C)A. of B. at C. to D. on7. The old man is still suffering from pain. It seems that the medicine has _

20、him. (B)A. no effect to B. is used for C. some effect in D. a good effect on8. _ should a man have courage, _ he should have wisdom and knowledge. (D)A. Neithernor B. Bothand C. Eitheror D. Not only but also9. He talked about his wonderful _ in Africa, but he said he didnt have _ in dealing with som

21、e problems he met there. (A)A. experiencesmuch experienceB. experiencemany experiencesC. experiences many experiencesD. experiencemuch more experience10. A library with five thousand books _ to the nation as a gift. (A)A. is offered B. have offeredC. are offered D. has offeredThe second periodI. Tea

22、ching aims:Talk about modern agriculture and its effects on peoples lifelearn how to give somebody advice and make decisions.Similar dialogue presentation with new words and expressions used withinII. Teaching aids: tape recorder, pictures, slidesStep 1 Pre-reading1.let Ss look at the following pict

23、ure and find out the difference between the modern farming and traditional farming- let Ss find out the advantages and disadvantages of each ways and fill in the table. (slide show)Raising chickensSmall scaleLarge scale Horsepower Animals (buffalo; also ox)Machines (tractor )Climate controlOpen airG

24、reenhouse 2. Group work: Get Ss work in pair and discuss the question-what other changes have happened on farms in the last 100 years?3. T sum up in a few words: “ With the development of the new technique, the agricultural production has increased. The farmers can use chemical fertilization to make

25、 crop stronger and better and they can use advanced machines to irrigate or cultivate the farmland. ”Step II. Reading1.Skimming T: “ Whats the title of the reading passage? ”Ss: “modern agriculture”T: “ What does it mean in Chinese? ” Ss: “现代农业”T: “ How to say 传统农业in English ? ”Ss: “ traditional agr

26、iculture. ”T: “ Can you imagine what traditional agriculture is like? ”Ss: let Ss read the text firstly and answer the following questions: How much land can be used for faming in China?(Seven percent of the land.)What is the advantage and disadvantage of chemical fertilization? (it helps to produce

27、 better crops. But is harmful to the environment.)What is the biggest problem of Chinese farmers?(The shortage of arable land.)2. Skipping let Ss read the passage for the second time and answer two questions: What does “GM” stand for? (“G” stands for “genetically” from the word “genes”. “M” stands f

28、or “modified”, which means “changed”.)What is the advantage of tomatoes which were using technique known as “GM”?(The tomatoes are bigger and healthier. They can grow without danger from diseases. They also need much less time to get ripe.)3. Intensive readinglet Ss read the passage and fill in the

29、table: (slide show)1950s-1980s1980s-presentThe use of machines e.g. tractorsThe use of electric pumps for irrigationThe use of chemical fertilizersThe use of insect killers The use of special seedbedsThe use of greenhousesTo make vegetables bigger or betterTo change vegetables so they can grow on po

30、or soilKnowledge from abroadInnovationsProblemsAdvantagesChemical fertilisersShortage of arable land Bigger and better crops Pumps for irrigationWeather conditionsBigger and better cropsSpecial seedbedsShortage of arable land More crops in one yearMachines e.g. tractorsHow to make production cheaper

31、 (not in the text)Bigger crops on more land by fewer handsInternational exchange Lack of knowledgeLearn from other peopleGreenhouses Weather conditionBigger and better cropsGreenhouses (roots in water tanks)Shortage of arable landMore crops in one yearGM technique (can grow in poor soil)Shortage of

32、arable landCan grow in poor soil; bigger & healthier; less time to ripe4. ListeningLet Ss listen to the tape and follow it.5. Discussionlet Ss work in groups and imagine what other changes have happened on farms in the last 100 years. let Ss discussion the following questionsAt the beginning of the

33、passage, why does the writer say “It is on the arable land that the farmers produce food for the whole population of China”?What does the writer want to tell us by saying, “Not only food production is important but also taking care of the environment.”?What can we infer from the sentence “In China a

34、bout one hundred research stations are now doing GM research to make better tomatoes, cotton?”What can you imagine about the future of food production?Step IV Post-reading1. finish the exercises in StudentsBook, page 46, Exercise 1-22. If possible, teacher can get Ss read a new text in Workbook, pag

35、e111 , and finish all the exercises.Step V. Language points and useful expressions1.Let Ss by themselves find out some phrases or useful expressions, which are important in the text.2. teacher explain language points :Compare to/ withFor thousands of yearsMake use ofBe harmful toDepend onAs well asN

36、ot only but alsoProtect fromNo matter how Be different fromStand forIn other wordsThe way tomatoes grow from a natural seed is changed A variety ofOver the yearsHave an effect on Make good moneyMake use of In the 1980sGo againstHomeworkFinish off the exercise on the Workbook.教案点评：根据新教材中的以阅读为主的教学环节所设

37、计的一课时/两课时教案。本课阅读课的目的是让学生通过阅读英语材料，掌握实验步骤，领悟严谨的科学精神财富，体验英语语言、问题，学习灵活使用语言结构。这个教学过程主要分四个教学步骤：pre-reading,reading,post-reading,language points。pre-reading：在阅读课文之前，教师可适当的讲解与本单元有关的背景知识,运用图片向学生介绍传统农业与现代农业的差异，通过提问的方式引入课文主题。教师可根据课文的内容和篇章结构，从不同的角度，引导学生对课文内容进行预测和讨论。reading：课文分三个步骤：掠读（skimming），即带着某个问题进行搜索式阅读，这样

38、能培养学生捕捉关键句的能力；略读(skipping)，即教师指导学生通读全文，理解课文大意，培养学生发现文章或段落的主题句及概括大意的能力；听读(listening)，即加深对课文理解。post-reading：教师通过让学生完成课堂练习，加深学生对课文内容的理解。教师开展课堂小组活动，诱发学生的参与积极性，培养学生辩证的看待事物的能力，锻炼他们说话的条理性和逻辑性。language points:教师点评课文中的知识点。通过以上个步骤的训练，学生对课文理解得比较深刻，同时也掌握了文中的语言知识。The third periodI. Teaching aims:learn to use “it

39、 ” for Emphasis.Similar dialogue presentation with new words and expressions used withinII. Teaching aids: slide, picturesStep I RevisionStep II word studyFinish the exercises in Student book, page 47.Step III PracticeLet Ss finish the exercises “vocabulary, 1-3” in page 108, Workbook Step IV Gramma

40、r1. give Ss some sentences to translate into Chinese and find out difference and sameness among these sentences (slide show)It is on this arable land that the farmers produce food for the whole population of china.It was from the early 1990s that scientists started to develop new techniques to incre

41、ase agricultural production without harming the environment.It was they who/that cleaned the classroom yesterday.It was in the street that I met her father.It was the goats eyes that he had seen in the darkness.2.teach Ss to find out the phrase from the sentence above-It is+被强调部分+that/whoTranslate t

42、he following sentences into English:1.写这本书的人就是玛丽。It is Mary who wrote this book.2.这个就是长满了美丽的鲜花的花园。It is garden that many beautiful flowers grow in.3.她就是擅长唱歌的女孩。It is a girl who is good at singing.4.那就是他叔叔移居纽约的季节。It was for this reason that his uncle moved out of New York.5. 错的人是我。 It is I who am wro

43、ng. 4. note: a. 在强调句型中，若被强调部分指人，可以用关系代词who或that；若被强调的是状语，只能用that，不能用when或where。b. 注意与“It is /wasthat +clause”主语从句的区别。强调句型与it作形式主语，that从句作真正主语十分相似，但主语从句中It is /was后通常用名词或形容词作表语。强调句型中It is /was后是对主语、宾语或状语的强调成分。5. let Ss find out some sentence with it in the text Modern Agriculture. It is on this arabl

44、e land that the farmers produce food for the whole population of China. (paragraph 1)It was from the early 1990s that scientists started to develop new techniques to increase agricultural production without harming the environment. (paragraph 2)It was developed using a technique know as GM. (paragra

45、ph 4) (it is not for Emphasis)3. exerciseslet Ss finish the exercises in Students book, page 47-48, Exx 1-2.let Ss finish the exercises in Workbook, page 109, Exx 1-3.Finish all the exercises in the book. The fourth periodTeaching aims:read the passage “Farming and Gardening” learn about Jia sixie a

46、nd his advice to farming.write a plan for a vegetable gardenSimilar dialogue presentation with new words and expressions used withinStep I Reading1. let Ss look at the picture and briefly introduce Jia Sixie, 2.skimming: let Ss read the text and find out the information about Jia Sixie (slide show)W

47、here/born: Yidu, Shandong Provincewhen/live: Six century ADwhere/work: Gaoyang, Shandong Provincewhat/do: study the science of farmingwhat book/write: Qi Min Yao Shuthe book/about: both the farming and gardeningthe importance of the book: an important summary of the knowledge of farming3. Skipping(s

48、lide show)He studied the ways of farmingDo things such sow seeds or grow young plants at the right time of the year.Improve the condition of the soilRough ground before sowing or planting cropsLet sheep or cows walk on the land to destroy the weeds or eat them.Plough the soil deeply the first time a

49、nd less deep the second time.The autumn ploughing should be deeper than the spring ploughing. Dont plant the same crop year after year in the same field. 4.listening: let Ss listen to the tape and follow it, then finish the exercises (slide show)True or false:1.China was the earliest research center

50、 for agriculture. ( T )2.JiaSixie was born in Gaoyang in Shandong Province. ( F )3.Qi Min YaoShu includes advice on the following subjects:growing green vegetables and fruit trees,keeping cows and sheep,and there are also instructions for making metals. ( F )4.The spring ploughing should be deeper than the autumn ploughing. ( F )5.We should plant rice in the same field year after year. ( F )6.Wed better grow different plants next to each other in the same field. ( T )Step II WritingWrite a plan for a vegetable garden , using the tips in the book, page49.Check the composition with the class.