高一英语下册unit19阅读

Modern Agriculture,Revision and Leadin,What 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.,Look at the pictures and classify traditional and modern farming, then compare these two ways.,Pre-reading,classify,Traditional farming (12 3 4)Agriculture Modern farming (5 6 7 8),in small scale,in large scale,cheap, eggs and meat are tasty,expensive, chickens are big and fat,Advantages and disadvantages of traditional and modern agriculture.,natural (manure),chemical,free, cheap, bad smell, difficult to transport,expensive, no smell, easy to transport,Animals,Machines,cheap, no pollution,need to rest,expensive, air pollution,convenient, use longer,Open air,Greenhouse,controlled by weather and land condition,expensive, but can be built where necessary,Skimming,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),Scanning,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 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 agriculture,Choose the best answer.,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 earth,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 nature,4. In the sentence “ they are protected from the wind, rain and 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,Further reding,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 land,Modern 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-,Consolidation,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,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.4. Protect the soil from being lost. Improve the soil conditions.5. Grow