高一英语Unit19 Modern Agriculture 新课标 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,*,Unit 19 Modern Agriculture,Warming up,Whats the unit about?Can you guess?,Agriculture,Farm,farming,farmer,peasant,Land,soil,Rice,wheat,corn,Plants,animals,fish,greenhouse,Weather,season,Techniques,production,Task 1:,Brainstorming,What will you think of when you see the word“,agriculture,”?,cotton,tea,wheat,sugarcane,soybean,rice,Can you guess what these agricultural products are?,chickens,cattle,pigs,fish,Cotton,Sugar,Fish,1.What is the graph about?,It is about the growth of the major farm products,during the year 1991-95 compared with that of,1986-90,.,2.What is shown on the x-axis and y-axis?,On the x-axis:the major farm products.,On the y-axis:the percentages of growth.,1.Which farm product grew most during the first five years of the 1990s?,2.How much did it grow compared with that during the last five years of the 1980s?,3.Which farm product grew least?,4.If three million pigs,sheep and cattle were raised during the years from 1986 to 1990,how many were raised from 1991 to 1995?,Fruit.,About 83 percent.,Grain.,About 3,000,000,65%,Step 2,Look at the graph on page 43&answer the following questions.,1.,How are peoples eating habits changing over the years?Why do you think this happens?,2.,How has agricultural product changed during,these years?What do you think caused these changes?,3.,What effects do you think the changes in eating,habits will have on agriculture or nature?,Period 2,Modern agriculture,Unit 19,Listening and speaking,New words:,1.go against,违背,2.,result in,导致结果,3.,flood and drought,洪涝和旱灾,4.,recognize some old truths,认清了一些真理,5.,chemicals,化学药品,6.,method,方法,7.,dike,堤防8.,fishpond,鱼塘,Listening,Task 1,Pre listening,Agriculture depends on?,Question:,If we change the structure of agriculture,what do you think will happen to the nature?,water,land,Proper climate,or weather,Other natural,resources,Task,2:,listening,1 Listen to the tape.The passage you hear talks about,()history of farming ()farmers in America ()fishing,()protection of nature ()farmers in China ()pigs,()environmental problems ()trees ()dikes,2 Which of the following sentences are true&which are false?,1 In early times farmers in China moved around&burnt forests.(),2 All farmers in South America burn forests to create farmland.(),3 Flood&droughts are disasters that farmers cannot stop.(),4 Some of the land in China is too wet to grow crops.(),5 Fish farmers damage nature.(),T,F,F,T,F,3,Listen,to the tape&,complete the sentences,by using your own words.,When farming goes against nature,_are the result.The earliest farmers_ nature.Their way of agriculture led to _and _.It is an old truth that_ should not _.The land that Tan and Xiao,Zao,bought was _ and could not be used for_.Instead they changed the fields into _.On their farm they kept _ and grew_.,environmental problems,destroyed,floods,droughts,farming,go against nature,too wet,farming/growing crops/growing wheat,fishponds,fish/ducks/chickens,fruit trees,Speaking,A group of farmers in your area have been given a large piece of land.Together,with the village leader,they have to decide how to use the land.Work in groups of four.Each group member will play one of the roles.Prepare role cards,discuss the problem and try to make a decision.,Speaking,Work in group of four,each group member will play one of the roles,and discuss the problem and try to make a decision.,Role A you are a rice farmer.,Role B you are a sugarcane farmer.,Role C you are a local farmer.,Role D you are a local farmer.,In my opinion you should/I think he is right,If I were you/we have to make a choice,As far as I can see the best thing would be to,Wouldnt it be better if?/we cant do both,so,From the graph we see that the eating habits in China have,improved,greatly since the 1990s.People have many more to choose as food and they can almost eat whatever they want.The consumption(,消费,)of fruit,fish and meat,ncrease,sharply while grain the least because more and more people eat less,grain.They,are turning their eyes to meat,fish and fruit.This shows Chinas economy is increasing and its people are,ecoming,more and more rich.As a result,people are,aying,more and more attention to their health.,Agriculture produce has changed over the,past 10 years.China now produce about,80%more fish and fruit than ten years ago.,The production of meat is up about 60%,over the same period.Oil and sugar have risen,by 30%each.The past 10 years has also seen,an increase by 10%in grain production and,by 15%in cotton production.,Reason:1.People want to,buy different products,so farmers need to grow different things.(changes in demand),2.Farmers want to,make more money,.When they can grow extra crops,they will,eg,plant fruit trees.In the end,they will bring more fruit to the market.(changes in supply),3.Some crops,bring in more money than other crops,so some farmers change their produce from growing grain to fish farming or growing fruit.In the end,they will bring more fish or fruit to the market.(changes in supply),Reasons for these changes,With the changes in peoples eating habits,nature,as well as agriculture will have to change,too.,People are eating more meat and fruit.To feed the,animals like pigs and fish,we need more grain.,to provide more fruit,we need to plant more,fruit trees.As a result,more land will be used,which is likely to cause harm to environment and,nature.Luckily,modern science and technology,has made it possible for land to produce more.,Less and less land will be needed.That is,no harm,will be done with the development of agriculture.,