人教版英语必修4 Unit2 Working the land Listening and speaking 课件（共23张PPT）
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| 名称 | 人教版英语必修4 Unit2 Working the land Listening and speaking 课件（共23张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 7.5MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2019-05-23 10:59:34 | ||
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课件23张PPT。CHEMICAL OR ORGANIC FARMING?Reading &listening人教课标版必修4Unit 21. Enable Ss to master the main idea of the reading passage.
2. Enable Ss to listen and get the main idea of the listening text.
3. Enable Ss to use some listening strategies.
4. Enable Ss to talk about the advantages of organic food and use the expression of persuasion.Add fertilizer into the soil 1.How can farmers make the plants grow well?Step I Lead- in & Warming up 2.How many kinds of fertilizers do farmers use?
There are two kinds. They are chemical fertilizers and natural ones. ORGANIC FARMING
.Step II Reading Read through the reading passage and find
the main idea of the passage.Task 1: Skimming Chemical fertilizers can cause many problems,
so organic farming is becoming moreRead the passage again and find the answers to the questions:1. What is the organic farming? 2. What is the advantage of using natural fertilizer? 3. What is the disadvantage of using chemical fertilizers? 4. What’s the main idea of paragraph 3? 5. What is the main reason for using organic faming method ?Task 2:Scanning 1. What is organic farming? They are a great way to stop crop disease and increase production.2. What is the advantage of using natural fertilizer?Make the soil richer in minerals and so more fertile, reduce diseases in crops and help them grow strong
and healthy.
Besides, keep the air, soil and water as well as the food supply free from chemical.3. What is the disadvantage of using chemical fertilizers?They can damage the land by killing helpful bacteria and pests and by staying in the ground and underground water for a long time. They damage people’s health by building up in their bodies and leading to cancer or other illnesses.4. What’s the main idea of paragraph 3?Organic farming is becoming more popular with some farmers and many customers after these discoveries came out..5. What is the main reason for using organic farming methods? The main reason for using organic farming methods is to grow good food and to avoid damaging the environment or people’s health. 1.Underline and understand the important wordschemical, organic, production, discovery, focus, reduce, comment Task 3: Language points2. Underline and understand the useful expressions:build up, lead to, focus on, keep…free from/of, in addition, as well as, turn to1. With these discoveries, some farmer and many customers are beginning to turn to organic farming.
2. They focus on keeping their soil rich and free of disease. 3. Underline and understand the important sentence Task 4: Post-reading Step 1. Skim the passage to find its main idea. Write it down if your own words
Step 2.Find and underline the topic sentence of each paragraph. Rewrite each topic sentence, using your own words.
Step 3. Write your summary. First state the main idea of the passage and them the topic sentence covered by each paragraph. Step 4. Swap summaries with your partner and give each other comments..Write a summary ? No use of chemical fertilizers
? Away from industrial areas
? Away from dirty water supply
? No air pollutionA summary of organic farming:What is the main topic of the conversation?
The possible bad effects of chemical fertilizers on the fruit and vegetables that we eat today. Step III Listening Task 1 Listen for the main ideaPaul thinks that Carrie is not telling him the truth.
Using chemical fertilizers always makes vegetables empty inside.
Today’s fruit is not as healthy for people as fruit fifty years ago.
Eating more vegetables might not always be good for us.
All of today’s vegetables look healthy but in fact are not.T FT FT Task 2: Listen for specific information Have a conversation in pairs, one of you is the farmer, while the other is the customer. The farmer is persuading the customer to buy your “green food”Step IV SpeakingUseful expressions① I’d rather …
② If I have a choice I’ll choose…
③ It’s better ….
④ What is the advantage of`…?
⑤ You need to…
⑥ The advantages are…
⑦I’d prefer…because…
⑧This is good value because…
⑨I don’t like…because…
⑩It’s a great pity that…
⑾You’ll taste the difference when…Sample dialogue:
F=farmer C=customer
F: Good morning! Would you like some organic carrots this morning?
C: Hmm…They’re a little expensive! What is the advantage of…?,
F: The advantage of these vegetables is that they are green food so they’re safe to eat and good for your family.
C: But what’s the advantage of having green food? I know all vegetables are good for you and those down the road look green too. And I can buy them at half the price there.F: Well, let me explain, I’d rather feed my family on green food than other vegetables because they are grown without chemical fertilizers.
C: But the price is too high. I’d prefer to buy good food if I can afford it.
F: This if good value for money because you’ll have healthier children. They won’ t have to go to the doctor so often and you won’t have to take time off work. In the long run you’ll be benefit.
C: Certainly Id like to buy what is safe and healthy. Perhaps I’ll try some of your vegetables and if they are as good as you say, I’ll be back next week!Homework 1. Finish Guidance on learning
2. Collect some information about the safety and importance of green food and write a poster about it.
2. Enable Ss to listen and get the main idea of the listening text.
3. Enable Ss to use some listening strategies.
4. Enable Ss to talk about the advantages of organic food and use the expression of persuasion.Add fertilizer into the soil 1.How can farmers make the plants grow well?Step I Lead- in & Warming up 2.How many kinds of fertilizers do farmers use?
There are two kinds. They are chemical fertilizers and natural ones. ORGANIC FARMING
.Step II Reading Read through the reading passage and find
the main idea of the passage.Task 1: Skimming Chemical fertilizers can cause many problems,
so organic farming is becoming moreRead the passage again and find the answers to the questions:1. What is the organic farming? 2. What is the advantage of using natural fertilizer? 3. What is the disadvantage of using chemical fertilizers? 4. What’s the main idea of paragraph 3? 5. What is the main reason for using organic faming method ?Task 2:Scanning 1. What is organic farming? They are a great way to stop crop disease and increase production.2. What is the advantage of using natural fertilizer?Make the soil richer in minerals and so more fertile, reduce diseases in crops and help them grow strong
and healthy.
Besides, keep the air, soil and water as well as the food supply free from chemical.3. What is the disadvantage of using chemical fertilizers?They can damage the land by killing helpful bacteria and pests and by staying in the ground and underground water for a long time. They damage people’s health by building up in their bodies and leading to cancer or other illnesses.4. What’s the main idea of paragraph 3?Organic farming is becoming more popular with some farmers and many customers after these discoveries came out..5. What is the main reason for using organic farming methods? The main reason for using organic farming methods is to grow good food and to avoid damaging the environment or people’s health. 1.Underline and understand the important wordschemical, organic, production, discovery, focus, reduce, comment Task 3: Language points2. Underline and understand the useful expressions:build up, lead to, focus on, keep…free from/of, in addition, as well as, turn to1. With these discoveries, some farmer and many customers are beginning to turn to organic farming.
2. They focus on keeping their soil rich and free of disease. 3. Underline and understand the important sentence Task 4: Post-reading Step 1. Skim the passage to find its main idea. Write it down if your own words
Step 2.Find and underline the topic sentence of each paragraph. Rewrite each topic sentence, using your own words.
Step 3. Write your summary. First state the main idea of the passage and them the topic sentence covered by each paragraph. Step 4. Swap summaries with your partner and give each other comments..Write a summary ? No use of chemical fertilizers
? Away from industrial areas
? Away from dirty water supply
? No air pollutionA summary of organic farming:What is the main topic of the conversation?
The possible bad effects of chemical fertilizers on the fruit and vegetables that we eat today. Step III Listening Task 1 Listen for the main ideaPaul thinks that Carrie is not telling him the truth.
Using chemical fertilizers always makes vegetables empty inside.
Today’s fruit is not as healthy for people as fruit fifty years ago.
Eating more vegetables might not always be good for us.
All of today’s vegetables look healthy but in fact are not.T FT FT Task 2: Listen for specific information Have a conversation in pairs, one of you is the farmer, while the other is the customer. The farmer is persuading the customer to buy your “green food”Step IV SpeakingUseful expressions① I’d rather …
② If I have a choice I’ll choose…
③ It’s better ….
④ What is the advantage of`…?
⑤ You need to…
⑥ The advantages are…
⑦I’d prefer…because…
⑧This is good value because…
⑨I don’t like…because…
⑩It’s a great pity that…
⑾You’ll taste the difference when…Sample dialogue:
F=farmer C=customer
F: Good morning! Would you like some organic carrots this morning?
C: Hmm…They’re a little expensive! What is the advantage of…?,
F: The advantage of these vegetables is that they are green food so they’re safe to eat and good for your family.
C: But what’s the advantage of having green food? I know all vegetables are good for you and those down the road look green too. And I can buy them at half the price there.F: Well, let me explain, I’d rather feed my family on green food than other vegetables because they are grown without chemical fertilizers.
C: But the price is too high. I’d prefer to buy good food if I can afford it.
F: This if good value for money because you’ll have healthier children. They won’ t have to go to the doctor so often and you won’t have to take time off work. In the long run you’ll be benefit.
C: Certainly Id like to buy what is safe and healthy. Perhaps I’ll try some of your vegetables and if they are as good as you say, I’ll be back next week!Homework 1. Finish Guidance on learning
2. Collect some information about the safety and importance of green food and write a poster about it.
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