英语：Unit 2 Working the land Period 3　Extensive Reading优秀教案（新人教版必修4）
The General Idea of This Period
This period is about the reading of the passages:Organic farming.It can help the students learn something more about the modern agriculture.
Teaching Important Points
extensive check
Help the students to understand the passages and realize the importance of organic farming.
Teaching Difficulties
How to improve the students’ reading ability.
How to help the students understand the advantages of organic farming.
Teaching Methods
Asking-and-answering activity to check the students’ understanding of the text;individual,pair
or group work to finish each task.
Teaching Aids
A tape recorder
A multi-media computer and a blackboard
Three Dimensional Teaching Aims
Knowledge and Skills
Train the students’ reading ability.
Learn some useful words and drill.
Enable the students to know the differences between organic farming and chemical farming.
Process and Strategies
Pair work to talk about the advantages of organic farming.
Individual work to finish each task.
Feelings and Value
Through the reading of this passage the students may have a better understanding of the advantages of organic farming.It is important as people are more and more concerned about the quality of the food we eat.
Teaching Procedures
Step 1 Warming up
1.Greetings
2.Check the answers of the exercises about the -ing form as the subject and object.
Step 2 Reading for structure
T:In the Reading part we learnt something about planting rice,but do you know what is the best way to plant rice?
Ss:...
T:Today we’ll learn a passage about organic farming.Now please read the text and try to find out the main idea of each paragraph.I’ll give you five minutes.
( five minutes later )
T:Who would like to tell me the main idea of Paragraph One?
S:It’s “What is ‘organic farming’?”
T:That’s right.How about Paragraph Two?
S:The main idea is “The fertilizer that organic farmers prefer is natural waste from animals”.
T:Thank you for your good answers.Let’s come to the next paragraph.
S:The main idea for the last paragraph is “Organic farmers change crops every two or three years”.
T:Every one has done a good job,I hope everyone got all the answers by yourself.
Step 3 Reading for details
T:Now please read the passage again,and try to find all the answers for the following questions:
1.What is organic farming?
2.What problems are caused by using chemical fertilizers?
3.Why do organic farmers grow peas or soybeans after corn or wheat?
T:Finish?Any one gets the answer for the questions?
Suggested answers:
1.Organic farming means growing crops without chemical fertilizers.
2.There are three problems.First,chemical fertilizers affect the soil and the water supply badly.Second,they allow farmers to grow the same crop year after year and exhaust the soil.Third,they kill both helpful and harmful pests.
3.Farmers grow peas or soybeans after corn or wheat so that peas and beans can put minerals back into the soil,making it rich and healthy and ready to grow more wheat or corn.
Step 4 Extensive Reading
T:Please read the text for the third time,then fill in the following table.
(Five minutes later the teacher check the answers one by one.)
Advantages of organic farming
Reason
1.Farmers use natural waste from animals.
1.This makes the soil richer in minerals and so more fertile.
2.The soil is not exhausted.
2.Peas and soybeans renew the minerals in the soil and it becomes rich and healthy.
3.They use the soil to best advantage.
3.They plant crops that need surface soil and next crops that grow at a deeper level.So the wind and water doesn’t carry away the soil.All the richness of the soil is used.
Step 5 Retelling
T:Now please retell the text according to the following chart,you can discuss in groups.Organic farming
1.Crops growing with natural fertilizers.
2.Farmers prefer natural waste from animals.
①icher and more fertile  ①is not good
②strong  　②ar  after year
③the and healthy
④from chemicals
(Three minutes later,the teacher ask some students to have a try)
Step 6 Language points
Teacher explains the important words and expressions from the reading.Try to use as many examples as possible to illustrate the point.After illustration,teacher can give students some exercise to consolidate their understanding.
Step 7  Summary and Homework
T:Today we learned a passage about organic farming.If you are interested in it,you may find more information about it on the Internet after class.What’s more,you should finish your workbook exercises.So much for today!

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