高一英语下册unit19阅读优选课件

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2020/10/181 Revision and Leadin Eating HabitsAgriculturalProduceNatureWhat are the relations between them?Eating habits affect the changes in agricultural produce,at the same time the development of agriculture has effects on nature.2020/10/182 Look at the pictures and classify traditional and modern farming,then compare these two ways.Pre-reading2020/10/1832020/10/184 Traditional farming(Traditional farming(12 3 412 3 4)Agriculture Agriculture Modern farming(5 6 7 8)Modern farming(5 6 7 8)2020/10/1852020/10/186AgricultureTechniquesTraditionalagricultureModern agricultureRaising animalsin small scale in large scalecheap,eggs and meat are tastyexpensive,chickens are big and fat Advantages and disadvantages of Advantages and disadvantages of traditional and modern agriculture.traditional and modern agriculture.2020/10/1872020/10/188AgricultureTechniquesTraditional agricultureModernagricultureFertilisersnatural(manure)chemicalfree,cheap,bad smell,difficult to transportexpensive,no smell,easy to transport2020/10/1892020/10/1810AgricultureTechniquesTraditional agricultureModern agricultureFarming toolsAnimals Machinescheap,no pollution,need to restexpensive,air pollution,convenient,use longer2020/10/18112020/10/1812AgricultureTechniquesTraditional agricultureModern agricultureClimate controlOpen airGreenhousecontrolled by weather and land condition expensive,but can be built where necessary2020/10/18132020/10/1814Q1: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)2020/10/18152020/10/18161.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 and more land to build cities C.because there are not enough farmers to work on the land D.because the other land cannot be used for agricultureChoose the best answer.2020/10/1817 2.Fertilisation is a technique that is used to _.A.make poor soil better B.make wet land drier C.make dry land better D.grow vegetables with their roots in water instead of earth2020/10/1818 3.Modern agriculture means finding ways to _.A.increase irrigation and stop using fertilisers B.stop irrigation and using fertilisers C.increase production and be friendly to the environment D.produce the same amount while taking better care of nature2020/10/1819 4.In the sentence“they are protected from the wind,rain and insects”,“they”means _.A.greenhouses B.roots C.vegetables D.tomatoes2020/10/1820 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 2020/10/18212020/10/1822Divide the text into four parts.Divide the text into four parts.Part IPart IIPart IIIPart IV(Para 1)A brief introduction to agriculture and arable land in China(Para 2)How to use advanced techniques to improve agricultural production(Para 3)Scientists started to develop new techniques to increase agricultural production without harming the environment(Para 4-6)Using the latest technologies to settle the problem with the shortage of arable land2020/10/1823Modern agriculture has developed through periods according to the text.What was mainly developed in each period?Period 1:More advanced technical information was brought in from abroad in the 1980s.Period 3:Using the latest technologies to grow vege-tables,such as greenhouses,GM.Period 2:Scientists started to develop new techniques to increase agricultural production without harming the environment from-2020/10/18242020/10/1825With 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_.odernechniquesroductionnvironmenthemicalsarmfulffectriendlyraditional mportance2020/10/1826Discussion How can we develop modern agriculture to meet the change of peoples eating habits without destroying or damaging the environment?1.Modern agriculture should not go against nature.2.We can develop Eco-agriculture.3.Use less chemical fertilizers,pesticide.4.Protect the soil from being lost.Improve the soil conditions.5.Grow different plants in different areas.2020/10/1827HomewoHomeworkrk 1.The text doesnt have an ending,please imagine an ending for it.2.Preview the language points in the text.2020/10/1828Genetically Modified(GM)food 2020/10/1829cherry tomato 2020/10/1830含乙肝疫苗的转基因土豆含乙肝疫苗的转基因土豆2020/10/1831谢谢您的聆听与观看THANK YOU FOR YOUR GUIDANCE.感谢阅读!为了方便学习和使用,本文档的内容可以在下载后随意修改,调整和打印。欢迎下载!汇报人:XXX日期:20XX年XX月XX日
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