Unit2 Working the land.ppt

Working the land,unit2,Warming up,If you had the chance to do one thing to help end hunger in the world,what would you do?,increase the rice output,Poor rice,Super hybrid rice,Have you ever been to the countryside?what did you do there?,Farming,Are you from a farmers family?what do you know about farming?,soil,ploughing,crops,weather&climate,Irrigating(灌溉),Agriculture in the past,Agriculture in the modern times,Growth of major farm products1991-95 compared with 1986-90 percentages.,Agriculture has been greatly developed nowadays.,Pre-reading(4ms)Answer the following questions:,What is the main food in all East Asian and Southeast Asian countries?,Rice.It is said that there are 2.4 billion people to eat rice every day throughout the world.,What do you think would happen if tomorrow there was suddenly no rice to eat?,If that happened,people there would suffer from starvation.People would be panic(惊慌)and the whole country would get into trouble.,Many African people suffer from hunger.,Reading,Farmers weeding at noon,Sweat down the field soon.,Who knows food on a tray,Due to their toiling day.,Poem,-By Li Shen,plow the field,grow some young plants,insert the young plants into the field,harvest,rice,Task 2:Skim the passage to check if you are right or not.,Task 1:Look at the title of the passage and the picture on Page 10.Predict what the reading passage is about?,Pre-reading,Skimming,Task:Skim the passage to find Yuan Longpings main achievement.,He grows super hybrid rice.,Task:What is the main idea of each paragraph?,Para1Para2Para3para4,His dreamsHis personalityWhat he thinks of himself and his achievementHis biography and his achievements,Fast Reading,A pioneer for all people,Yuan Longping-Father of Hybrid Rice,Careful Reading,Task 1 Read the passage and decide whether the following are true or false.,Dr.Yuans kind of rice is the most suitable for Chinas farmland.Dr.Yuan is a farmer not a scientist.Dr.Yuan would rather work than relax.Dr.Yuan enjoys a simpler life than most rich and famous people.,T,F,T,T,Careful Reading,Task Read the passage and decide whether the following are true or false.,5.The special rice makes it possible to produce one-fifth more of the crop in the same field.6.Dr.Yuan cares about being famous.7.One of his dreams is to export his rice so that it can be grown around the world.,F,F,T,Careful Reading,Task Read the text carefully and fill in the blanks.,Yuan Longping,Chinese,79,Scientist,Graduated from Southwest Agricultural College in 1953,To export his hybrid rice so that it can be grown around the world,Developed hybrid rice,Listening to violin music,playing mah-jong,swimming and reading,Post reading,Why does he consider himself a farmer?,He works in the field to do his research.Sunburnt face and arms and his slim,strong body.The first agricultural pioneer in the world.Grow hybrid rice.,Post reading,Is Dr Yuan more of a scientist or more of a farmer?Do you think he is a businessman?,I think he is more of a scientist.His main purpose is not to make a profit for himself but to study agricultureand use that knowledge to improve farming for farmers everywhere.I do not think he is a businessman,because his goal is not to make money.,How would you describe Dr Yuans personality?Use some adjectives.,Patient,careful,hard-working,intelligent,considerate,kind,determined,helpful,unselfish,Post reading,An interview,Reporter:Dr Yuan,may I ask you some questions?Dr Yuan:Go ahead.Reporter:,If you had the chance to do something to help end hunger in the world,what would you do?,Discussion,There is still hunger in the world.,The measures taken to deal with hunger.,Invent a new kind of plant to produce more food.,Find a new sort of fertilizer(肥料)to give riceenough nutrition,Find some new ways to stop the pollution to the environment and protect the soil in the field.,One of the best ways to solve the food shortage problem is to increase rice harvests through the science and technology.,Homework,Writing practice Write a short biography about Dr.Yuan(about 120 words)2.Learned the words by heart.,Reading 2&3,Organic Farming listen and then find out the main idea of each paragraph.,Para 1:Para 2:Para 3:,What is organic farming?,Farmers prefer natural waste from animals.,Farmers change crops every two or three years.,Second readingRead the text again and answer the following questions:1.What is organic farming?2.What problems are caused by using chemical fertilizers?3.Why do organic farmers grow peas or soybeans after corn or wheat?,Organic farming means growing crops without chemical fertilizers.,2.What problems are caused by using chemical fertilizers?,There are three problems.First,chemical fertilizers affect the soil and the water supply badly.Second,they allow farmers to grow the same crop year after year and exhaust the soil.Third,they kill both helpful and harmful pests.,Farmers grow peas or soybeans after corn or wheat so that peas and beans can put minerals back into the soil,making it rich and healthy and ready to grow more wheat or corn.,3.Why do organic farmers grow peas or soybeans after corn or wheat?,Organic farming,Crops growing with natural rather than chemical fertilizer,Natural waste from animals,Make the soil richer in minerals and more fertile,A healthy soil,Reduce diseases in crops,Help crops grow strong and healthy,Chemical fertilizer,Not good for the soil or the water supply,The soil gets exhausted,Kill both helpful and harmful bacteria and pests,Change crops every two or three years,Corn,wheat,Peas soybeans,Put the minerals back into the soil,making it rich and healthy,Crops that use the surface of the soil(peanuts),Crops that need a deeper level of soil(root vegetable),Make sure that what is left in the ground after harvesting becomes a natural fertilizer for the next years crop,Explanations,1.refer（常与to 连用）vt.提交,谈及,归诸于,指点把.提交,使求助于 vi.提到,涉及,查阅,咨询,新法律与耕地无关。,The new law does not refer to farm land.,所谈到的问题,the question referred to,他把他的成功归于他以前所受的良好教育。,He referred his success to the good education he had had.,2.reduce v make sth smaller in size,number,degree,price,etc.减少,降低e.g.公司尽力通过减少花销来提高利润。The company tries to increase profits by_.今年我们已经减少了业务开支。We _ expenses this year.,reducing costs,have reduced,3.supply vt.供给;n.供应,供求之物,supply sth.to/for sb.=provide sth.to/for sb supply sb.with sth.=provide sb.With sth.向/为某人提供某物,in short supply短缺medical supplies医疗用品 They supplied the children _ toys.They supplied toys _ the children.,with,to/for,1.What made Jia Sixie become interested in improving Chinese farming?He saw how some farms produced good crops and healthy animals and others did not.,Reading task on Page 51(15ms)Read the passage on Page 51,then finish the exercises on Page 52.,2.How did he think he could help farmers?He thought that when he found the best agricultural methods he would write them dawn so all farmers.,hang seed-heads up to dry all winter,knock seeds out when they are sown,choose ones with the best colour,3.What advice did he give farmers?Make notes in the chart.,let animals eat them before planting,turn the soil over and cover so the weeds die.,deep ploughing,less deep ploughing,change crops grown in the same field every year.,Module 4 Unit 2 Working the land,Writing How to develop a paragraph,1.Whats the main idea of the passage?The use of chemical fertilizers can cause problems,and organic farming becomes popular.2.In which paragraph are problems of chemical fertilizers talked about?In Paragraph 2.Topic sentence:What are some of the problems caused by chemical fertilizers?3.What are the problems?Find and number them.,Revision of the reading,What are some of the problems caused by chemical fertilizers?First,they damage the land by killing the helpful bacteria and pests as well as the harmful ones.Chemicals also stay in the ground and underground water for a long time.This affects crops and,therefore,animals and humans,sincechemicals get inside the crops and cannot just be washed off.These chemicals in the food supply build up in peoples bodies over time.Many of these chemicals can lead to cancer or other illnesses.In addition,fruit,vegetables and other food grown with chemical fertilizers usually grow too fast to be full of muchnutrition.They may look beautiful,but inside there is usually more water than vitamins and minerals.,_,_,1,2,3,4.In which paragraph are methods of keeping the soil fertile talked about?In Paragraph 4.5.Underline the topic sentence of Paragraph 4.What are the methods?Find and number them.,Organic farmers also use many other methods to keep the soil fertile.They often change the kind of crop in each field every few years,for example,growing corn or wheat and then the next year peas or soybeans.Crops such as peas or soybeans put important minerals back into the soil,making it ready for crops such as wheat or corn that need rich and fertile soil.Organic farmers also plant crops to use different levels of soil,for example,planting peanuts that use the grounds surface followed by vegetables that put down deep roots.Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil,and then leaving it in the ground to become a natural fertilizer for the next years crop.These many different organic farming methods have the same goal:to grow good food and avoid damaging the environment or peoples health.,1,2,3,How does the writer express his ideas in these two paragraphs?Main idea of the paragraph topic sentence/the writers opinionSome facts to support his opinionsupportings,Discussion,How to develop a paragraph,Topic sentence,Supporting example(s),Supporting example(s),Supporting example(s),Practice 1Read the sentences.Find the topic sentence and their supportings.Put a T before the topic sentence and an S before the supportings.1.At last,factory workers use them in industrial production to make everything from toys to shoes.2.Today we use chemicals in almost every part of our lives to make our life better.3.Besides,farmers also use them in the soil to help their plants grew fast and becomes strong.4.Whats more,doctors give them to us in medicine to fight harmful bacteria in our bodies.5.First,we use them at home to kill flies and other disease-carrying pests.,T,S,S,S,S,Practice 1Read the sentences.Put them into the right order to form a paragraph.2.Today we use chemicals in almost every part of our lives to make our life better.5.First,we use them at home to kill flies and other disease-carrying pests.3.Besides,farmers also use them in the soil to help their plants grew fast and becomes strong.4.Whats more,doctors give them to us in medicine to fight harmful bacteria in our bodies.1.At last,Factory workers use them in industrial production to make everything from toys to shoes.,Practice 2Topic sentences or supportings1.If I have a mobile phone,I can look up some new words.2.Services such as booking airline tickets or hotel rooms are available on the internet.3.Internet shopping has many advantages.4.There are some advantages of bringing mobile phones to school.5.We can shop whenever we like.,T,S,S,T,S,Practice 2What are the characteristics of the topic sentences？3.Internet shopping has many advantages.5.There are some advantages of bringing mobile phones to school.,Write a paragraph to show your opinion.You may write on anything you like or choose a topic from the following.(At least 50 words)1.Bringing mobile phones to school 2.Wearing school uniform 3.Internet Shopping,Writing task,Evaluation,Choose another topic from the following and write a paragraph.1.Bringing mobile phones to school 2.Wearing school uniform 3.Internet Shopping 4.Stay in Beijing for your advanced education or not,Homework,