您正在看的高中一年级是:人教版 高一(下)Unit 13-22 全套教案。 in existence in China.

　　Today we come to the Reading. It’s about the differences between traditional agriculture and modern one in China meanwhile any necessary common knowledge about the importance of keeping the balance of nature. Let’s look at the pictures and reconstruct the text by comparing traditional and modern farming.

　　Step 2 Pre-reading discussions

　　Answers to Exercise 1:

　　The first picture shows a farmer sitting in the courtyard, in front of the house. There is a basket in front of her and two chickens that eat from the basket. On this farm, chickens can walk freely in the yard.The picture below shows a large building in which thou¬sands of chickens sit in small cages. On this farm, chick¬ens sit in cages inside a building.

　　The second picture shows a pile of animal shit (manure). The picture below shows a bag of chemical fertiliser.

　　The third picture show a farmer working on the land with two animals. The animals pull the plough to work the land.

　　The picture below shows a tractor. In this picture, the farmers use the tractor to work the land.

　　The fourth picture shows dry, barren land. The earth is so dry that nothing can grow there.

　　The picture below shows a greenhouse, where plants grow in a building .made of glass.

　　Answers to Exercise 2:

　　Ask the students to discuss the advantages and disad¬vantages of modern farming; they can also think of the advantages and disadvantages of the old ways of farming.

　　Raising chickens

　　Small scale Large scale

　　The farmer can keep only a few chickens. The farmer can keep thousands of chickens.

　　It does not cost a lot to keep the chickens. It costs a lot of money to keep the chickens.

　　It is not a lot of work to keep the chickens. It\'s a lot of work to keep the chickens: feeding, cleaning etc.

　　The chickens don\'t have many problems. If chickens get ill, many die or must be killed.

　　The chickens are not so fat. The chickens are big and fat.

　　The eggs and meat taste very good. The meat and eggs do not taste so good.

　　The chickens are free. The chickens are not free.

　　The farmer can sell the chicken dung

　　Fertilisers

　　Natural fertiliser (manure; also dung) Chemical fertiliser

　　It\'s free or can be bought at low prices.

　　It is a lot of work to mix it with the soil.

　　It has a bad smell.

　　It takes a lot of place to store.

　　It is difficult to transport. It\'s eXPensive.

　　It is not a lot of work to mix it with the soil. It has no smell.

　　It takes little place to store.

　　It is easy to transport.

　　Animals (buffalo; also ox) Machines (Tractor) Horsepower

　　They are not so expensive. They are eXPensive.

　　The \"fuel\" is cheap (grass, hay etc). The fuel is eXPensive (gasoline).

　　They don\'t pollute the air. They pollute the air.

　　They can be used on different terrain; eg hill slopes or wet ground. They can only be used on flat (level) and dry terrain.

　　They need to rest sometimes. They don\'t need to rest.

　　You can use them for about 10-20 years. You can use them for 5-20 or more years if you can get enough spare (repair) parts.

　　If they get young ones, you get more for free.

　　If they totally \"break down\", you can eat them.

　　Climate control

　　Open air Greenhouse

　　If the weather conditions are bad you can loose the crops.

　　The landscape is more beautiful.

　　The land must be good for farming (arable land).

　　Weather conditions are controlled, so they cannot damage crops.

　　It is eXPensive to build and operate (gas, water, electric¬ity) a greenhouse.

　　If there is a power failure, you may lose crops.

　　The landscape is ugly:

　　Greenhouses can be built where the land is not suitable for farming.

　　1950s - 1980s 1980s - present

　　The use of machines eg tractors The use of greenhouses

　　The use of electric pumps for irrigation To make vegetables bigger or better

　　The use of chemical fertilisers To change vegetables so they can grow on poor

　　The use of insect killers soil

　　The use of special seedbeds Knowledge from abroad

　　IT technique and technical are words that mean something with

　　technology FORM machines, then technology must be the noun to match these two

　　words meaning new machines or doing things that are based on

　　modem knowledge.

　　agricultural FORM IT cultural is the adjective for culture, then agricultural must be

　　the adjective for agriculture, meaning to do with agriculture.,

　　Step 3 Scanning:

　　Q1:What is the biggest problem to Chinese farmers?

　　China is a country with the largest population in the world,but only seven percent of the land can be used for farming.

　　Q2:What does GM mean?

　　“G” stands for “genetically” from the world “genes”.M” stands for “modified”,which means “changed”.

　　Step 4 Skimming

　　Read the whole text .Find out the topic sentence in each paragraph.

　　Para.1: For thousands of years traditional agriculture in China did not change very much.

　　Para.2: Over time, many farming techniques have been modernised.

　　Para.3: Not only is food production important but also taking care of the environment.

　　Para.4: Using the latest technologies, Chinese scientists grow vegetables in greenhouses.

　　Para.5: Another technique tries to create plants that produce more and bigger fruit.

　　Para.6: The tomoto is one of nearly 4,500 different plants thet are genetically modified.

　　1.What helps Chinese farmers produce enough food for the largest population in the world?

　　High technology.

　　2.When was more advanced technical information brought in from abroad? In the 1980s

　　3.What does “which ” refer to in the last two lines ? “Which” refers to “golden rice”

　　4. What is the other name of “golden rice ” in the text ? GM rice

　　5.How much does arable land take up in China? Only 7 percent.

　　6.How many ways are mentioned to make the land produce more? What are they?

　　4. Fertilisation; irrigation; 2 or more crops are planted each year where possible; more advanced technical information.

　　7.What does new techniques mean?

　　Those that are used to increase agricultural production without harming the environment.

　　8.When did scientist start to develop new techniques? From the early 1990s.

　　5.How many unusual ways are mentioned to deal with the shortage of arable land?

　　2. Grow vegetables in greenhouses; GM.

　　Step 5 Scanning

　　1: What’s the biggest problem to Chinese farmers?

　　The shortage of arable land.

　　2: What does GM mean?

　　“G” stands for “genetically” “M” stands for “modified” (changed)

　　3.What is important for future agriculture ?

　　Both food production and taking care of the environment are more important .

　　4.What should future agriculture depend on?

　　Future agriculture should depend on high technology as well as traditional methods

　　Read the text carefully again

　　What advice does Jia Sixie give farmers?

　　1. Farmers should do things at the right time of the year.

　　2. Farmers should examine the soil carefully.

　　3. If the conditions of the soil is not good, farmers should improve it.

　　4. Before sowing or planting crops, farmers should clean rough ground and remove weed.

　　5. Farmers should let sheep or cattle (cows) walk on the land before sowing or planting crops.

　　6. Farmers should plough the land, so weeds are destroyed.

　　7. When ploughing the land, farmers should plough deep the first time and less deep the second time.

　　8. Farmers will get the best results if they change crops in their fields.

　　9. If farmers plant rice in a field one year, and wheat in that field the following year, they will harvest good crops

　　10. If farmers plant wheat close together, they will have better results than when they plant wheat leaving space between the plants.

　　11. It is good to grow different plants next to each other in the same field.

　　Step 4 Listening to the reading passage

　　Play the tape for the students to listen and follow. Pay attention to the pro- nunciation and intonation.

　　Step 5 Post-reading

　　Choose the best answers.

　　1 In China only seven percent of the land is used for farming. This is _______. D

　　A because farmers don’t 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 can’t be used for agriculture

　　2 Fertilisation is a technique that is used to ______. A

　　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

　　3 Modern agriculture means finding ways to ______________.C

　　A increase irrigation & stop using fertilisers

　　B stop irrigation & using fertilisers

　　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 _______. C

　　A greenhouses B roots C vegetables D tomatoes

　　5 In GM “M” stands for “modified”, which means “changed”. What changes is _____________. C

　　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

　　6.What should future agriculture depend on according to the text ? D

　　A. High technology B. Traditional methods

　　C. High technology or traditional methods

　　D. Not only traditional methods but also high technology

　　7.How do farmers in China make their land produce more? D

　　A. They have long used techniques such as fertilization and irrigation

　　B. More advanced technical information was brought in from abroad

　　C. Technology and machines are imported

　　D. All above

　　8. Which of the following statements is not true ? C

　　A. It saves time for the farmers to plant two or more crops every year where possible

　　B. Scientists began to develop new techniques to increase agricultural production without harming the environment

　　C. Food production is more important than taking care of the environment

　　D. Only 7% of the land can be used for farming in China

　　9. The biggest problem of Chinese farmers is ____. A

　　A. the shortage of arable land B. lack of labor force

　　C. lack of technology D. lack of money

　　10. Scientists have started to develop new technology to increase agricultural production without harming the environment since _____. C

　　A. the 19th century B. modern times

　　C. the early 1990s D. the 1980s

　　11. New techniques are those which can ____. D

　　A. increase agricultural production B. protect the environment from being harmed

　　C. bring in great profit

　　D. not only increase agriculture production but also be friendly to the environment

　　12.The text is about ____. B

　　A. farmers in China

　　B. the development of agriculture in China

　　C. advanced technology in China

　　D. genetically modified plants in China

　　13. Which of the following is most probable in future agriculture according to the text ? D

　　A. Only high technology is used

　　B. It will greatly harm the environment

　　C. It will depend on only traditional methods

　　D. It will depend on both high te