江西地区高一英语Unit19 modern agriculture资料 人教版 课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Modern Agriculture,Unit 19 Reading,By,Apple King,Place,Date,Event,Rome,Italy,The,historical,events about agriculture,1908,held the First World,Agriculture Conference,China,1910,imported the 1st tractor,from the United States,the USA,1918,used a plane to spray poison,to kill insects,Switzerland,1938,used DDT to kill insects,the UN,1945,founded the Food and,Agriculture Organization(FAO),the USA,1972,stopped using DDT,China,1980,exported agricultural,technology to the USA,Fast reading,Paragraph 1,Since early 1990s scientists started to,develop new environmental techniques,.,Paragraph 2,Traditional agriculture in China,only changed a little,.,Paragraph 3,Many other plants are genetically,modified,.,Paragraph 4,Many farming techniques have,been modernized,.,Paragraph 5,Greenhouses are used.,Paragraph 6,GM is used,.,3 While reading,Scanning:,Q1:Whats the biggest problem to Chinese farmers?,Q2:What does GM mean?,The shortage of arable land.,“G”stands for“genetically”,“M”stands for“modified”,(changed),1.How much does arable land take up in China?,2.How many ways are mentioned to make the,land produce more?What are they?,3.What does new techniques mean?,4.When did scientist start to develop new techniques?,5.How many unusual ways are mentioned to,deal with the shortage of arable land?,2)Skimming,Answer the following questions:,Only 7 percent.,4.,Fertilisation,irritation,2 or more crops are planted each,year where possible,more advanced technical information.,Those that are used to increase agricultural production without harming the environment.,From the early 1990s.,2.Grow vegetables in greenhouses,GM.,Intensive reading,(True or False),1.Although China is a large country,only 7%of the land can be used for farming.(),2.More advanced technical information was brought in in the 1970s.(),3.Long before the early 1990s scientists started to develop new techniques without harming the environment.(),4.The biggest problem of Chinese farmers is water.(),T,F,F,F,1980s,From,shortage of arable land.,5.China has only about,672,000,sq.km of arable land.,6.Which of the following ways did the farmers make use,of to increase farm production,before the 1980s,?,A.,the use of machines,eg,tractors (),B.,the use of electric pumps (),C.,the use of chemical fertilizers (),D.,the use of GM (),E.,the use of insect killers (),F.,The use of special seedbeds (),G.,More than one crop is planted each year wherever possible (),7.No advanced technical information was brought in from abroad before the 1980s.,8.Scientists have always tried to increase farming production without harming the environment since the early 1990s.,T,T,T,T,T,T,T,F,F,T,9.,Traditional methods of farming have no advantages so they wont be used in future agriculture.,10.Growing vegetables in greenhouses has so many advantages that it can reduce losses caused by bad weather and that it can partly settle the problem of the shortage of arable land.,11.GM is a new technique that can make a plant quite different from what it used to be,bigger and healthier and with no diseases,but it takes longer time to grow.,F,T,F,1)Choose the best answers.,1 In China only seven percent of the land is used for farming.This is _.,A.because farmers dont need more land to produce food for the whole population,B.because China needs more&more land to build cities,C.because there are not enough farmers to work on the land,D.because the other land cant be used for agriculture,2 Fertilisation is a technique that is used to _.,A.make poor soil better B.make wet land drier,C.make dry land wetter D.grow vegetables with their,roots in water instead of earth,Post reading,3 Modern agriculture means finding ways to _.,A.increase irritation&stop using fertilizers,B.stop irritation&using fertilizers,C.increase production&be friendly to the environment,D.produce the same amount while taking better care of nature,4 In the sentence“they are protected from the wind,rain&insects”,“they”means _.,A.greenhouses B.roots,C.vegetables D.tomatoes,5 In GM“M”stands for“modified”,which means“changed”.What changes is _.,A.the way in which poor soil is made better,B.the way in which Chinese farmers work on their land,C.the way in which crops develop from seed,D.the way in which farmers take care of the environment,2,）,Answer the following questions by,further understanding about the text.,1 At the beginning of the passage,why does the writer say“It is on the arable land that the farmers produce food for the whole population of China”?,2 What does the writer want to tell us by saying,“Not only food production is important but also taking care of the environment.”?,It shows how great we Chinese are:We produce food for so many people with so little arable land.,We must take care of the environment as well as food production.That is to say,we should produce more food by means of new techniques which will not do harm to the environment.,3 What can we infer from the sentence“In China about one hundred research stations are now doing GM research to make better tomatoes,cotton”,4 What can you imagine about the future of food production?,In the future we can eat the hi-tech produced food,which contains more vitamins&will not do harm to the environment.,We can produce more food than now with new techniques.,Post-Reading,Modern agriculture has developed through periods according to the text.What was mainly developed in each period?,Period 1:,In the 1980s:,Period 3:Nowadays:,Period 2:,From the early 1990s:,More advanced technical information was brought in from abroad.,Scientists started to develop new techniques to increase agricultural production without harming the environment.,Using the latest technologies to grow vegetables,such as greenhouses,GM.,Consolidation,Read the text and fill in the blanks with proper words according to the passage.,With the development of m_ agriculture,farmers are realizing more and more the importance of protecting nature.Since the early 1990s,scientists have been trying to develop new t_ to increase agricultural p_ and protect the e_ at the same time.Some c_ can help to produce better crops but are very h_to our environment.Some have a very good e_ on removing weeds but they damage crops at the same time.So new techniques should not only help increase production but also be f_ to the environment.We should depend on high technology and t_ methods as well to develop our agriculture because food production and taking care of the environment are of the same i_.,odern,echniques,roduction,nvironment,hemicals,armful,ffect,riendly,raditional,mportance,In the past,farmers grow crops in the traditional way.Using cattle to plough the field,farmers work most of the day all year around,but they could not produce enough food for the whole,population.,At present,they use modern techniques such as chemical fertilizers,greenhouses and so on in their fields to improve agricultural production.Great changes have taken place in agriculture.,Summary,Summary,The text tells us something about the situation of agriculture of our country.For example,its past and present,especially its future.At the same time,we also know that we must take care of the environment while we develop our agriculture.From now on,we should study hard and be ready to make greater contributions to the development of our agriculture.,Discussion,How can we develop modern agriculture to meet the change of peoples eating habits without destroying or damaging the environment?,Modern agriculture should not go against nature.,We can develop Eco-agriculture.,3.Use less chemical fertilizers,pesticide,5pestisaid,杀虫剂,.,4.Protect the soil from being lost.Improve the soil conditions.,5.Grow different plants in different areas.,