人教高中英语必修四 unit2 Working the land Using language课件（32张PPT）
文档属性
| 名称 | 人教高中英语必修四 unit2 Working the land Using language课件（32张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 4.5MB | ||
| 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 | 2019-06-05 08:43:04 | ||
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文档简介
人教版 Book 4
Unit 2 Working the land
(Reading , Speaking & Writing)
Using language
VS
Step1 Lead-in
big and beautiful
fresher,
healthier,
taste better
to improve the output of the crops
fertilizer
herbicide pesticide
natural fertilizer
from
animal waste
chemical fertilizer
How many kinds of fertilizers do farmers use?
Which kind do farmers use when they are doing organic farming?
Chemical fertilizers
green food
organic food
Chemical or Organic Farming?
Reading
D. Long-term use of chemical fertilizers
can cause damage to the land and
people’s health.
B. Farmers and customers turn to
organic farming.
C. Other methods to keep the soil fertile.
Step 2 Reading
4m
A. Problems caused by chemical fertilizers.
Task 1 Skim the passage and match the main idea with each paragraph.
P1.
P2.
P3.
P4.
The main idea of this passage:________________can cause _____________, so ________________ is becoming more popular.
chemical fertilizers
many problems
organic farming
1. Why are chemical fertilizers so popular in farming today?
2. What problems can be caused by using chemical fertilizers?
3. What is organic farming? And what are the advantages of organic farming?
4. What methods do the organic farmers use to keep the soil fertile?
Task 2 Read the passage carefully and answer the following questions
1.Why are chemical fertilizers so popular in farming today?
Many farmers welcomed them as a great way to stop crop disease and increase production.
Paragraph 1
Chemical fertilizer
damage the land or the water supply
damage people’s health
Grow too fast to be full of nutrition
2.What problems can be caused by using chemical fertilizers?
What problems can be caused by using chemical fertilizers?
There are three problems.First, they can damage … as well as …. They also stay in the … and …. In addition, …grow too fast to ….
first;second; finally;last but not least ,etc.
Para 2
There are three problems.First, they can damage … as well as …. They also stay in the … and …. In addition, …grow too fast to ….
Tips: connectives（过渡词） and transitional phrases（过渡词） for development
Paragraph 2
advantages
3.What is organic farming?
What are the advantages of organic farming?
Make the soil richer in
minerals and more fertile
Help crops grow strong and healthy
keep the air, soil, water and crops free from chemicals. (Environment-friendly)
Paragraph 3
Farming without using any chemicals.
It is obvious that
An advantage of organic farming is that
What is even more important is that
That is the reason why many farmer have turned to organic farming.
organic farming means growing crops without using any chemicals.
the farmers focus on keeping their soil rich and free of disease.
it can keep the air , soil, water and crops free from chemicals.
The methods to keep the soil fertile
1.using natural waste from animals as fertilizer.
2.changing the kind of crop in each field .
3.planting crops to use different levels of soil.
4.planting grass between crops to prevent …
The same goal : ________________________
______________________________________
______________________________
to grow good food and to avoid damaging the environment or people’s health.
Paragraph 3 and 4
para1: A new discovery of scientists.
para2: Several problems caused by using chemical fertilizers.
para3: The advantages of using organic farming.
para4: Some methods to keep the soil fertile.
The structure of this passage
Para1 Topic
Para2 Problems
Para3 Advantages
Para4 Several methods
illustration（阐明）
comparison
conclusion
The type of the article is_____________
exposition（说明文）
Over the past half century, …have become very common …. …welcomed them as a … way to …. Recently, however, we have been finding that they can cause damage to …, even …, to people’s health.
What are some of the problems caused by …? First,… Second, …Last but not least, …
With these discoveries, …are beginning to turn to ….
….
The following words may help you.
Problems：
1. cause white pollution
2. easy to be broken
3. difficult to break down
4. do harm to the environment and people's health
Advantages：
1. can be recycled and reused
2. save resources 3.cheap
4. protect the environment
Over the past half century, plastic bags have become very common in our daily life. We welcomed them as a convenient way to carry goods. Recently, however, we have been finding that they can cause damage to the environment, even worse, to people’s health.
What are some of the problems caused by plastic bags? First, people often leave plastic bags here and there, making white pollution. Second, it takes a long time, more than 100 years ,to be exact, to break up .Last but not least, when heated, plastic bags can produce something harmful, which can build up in our body and eventually lead to cancer or other illnesses.
With these discoveries, we are beginning to turn to cloth bags. They can be used many times. People can save a lot of source in this way. It is also a good idea to make some by ourselves, which is interesting.
Let’s use cloth bags in our daily life instead of plastic bags, not only for the environment protection, but also the sake of our health.
Step 3 Supplementary reading
Passage A
What is mainly discussed in this passage?
Why organic food cost more
Lower yields
Rising labor costs
High demand
Reasons Why Consumers Should Buy Organic Food
Passage B
healthy and safe
builds strong future generations
keeps our water clean
results in less soil erosion
offers outstanding flavor
becoming more affordable
reasons
Continually purchase organic food
Your purchases now make a difference in the long run.
Step 4 Making a Dialogue
(Pair work)
Situation:
You are a farmer and your partner is the customer,
who doesn’t know much about the organic food.
You are persuading the customer to buy your
organic food that is healthy and safe but more expensive.
Making a Dialogue (Pair work)
Farmer Customer
It’s better to …
This is good value because…
The advantages are…
It’s more expensive but…
You’ll taste the difference when…
It’s a great pity that… I’d prefer…because…
I don’t like… because…
If I have a choice I’ll choose…
What’s the advantage of…?
I’d rather…
Designing a poster
Design a poster to advertise the organic food you’re selling.
Step 5
How to write a poster
Buy the Best Vegetables Here
We only sell green food!
Best choice at best prices!
Look
1.no chemical fertilizer
2…
3…
You and your family will stay fit and healthy if you eat green food.
Main heading
This explains that
you sell green food.
Reasons to buy:
Reason 1:
Reason 2:
Reason 3:
(Conclusions)
Why it is good value.
brief ,persuasive, vivid
nice , creative
four parts
Content
Language
Design
@
If you want to be healthier and fitter you should eat organic food.
Eat organic food to become healthy and fit.
You ’ll find the taste of organic food more delicious than ordinary vegetables and fruit.
Organic food tastes more delicious. @
Evaluation
After this lesson, I am able to do the following things. Very
well Quite
well OK A
little Little
Explain what organic farming is
Use the correct phrases to try to persuade somebody to do something
Design a poster in English
Think local, choose organic
Percentage 95% 85% 75% 60 % 40 %
Use the information you have learnt today to write a report about organic farming and organic food.
Homework
Unit 2 Working the land
(Reading , Speaking & Writing)
Using language
VS
Step1 Lead-in
big and beautiful
fresher,
healthier,
taste better
to improve the output of the crops
fertilizer
herbicide pesticide
natural fertilizer
from
animal waste
chemical fertilizer
How many kinds of fertilizers do farmers use?
Which kind do farmers use when they are doing organic farming?
Chemical fertilizers
green food
organic food
Chemical or Organic Farming?
Reading
D. Long-term use of chemical fertilizers
can cause damage to the land and
people’s health.
B. Farmers and customers turn to
organic farming.
C. Other methods to keep the soil fertile.
Step 2 Reading
4m
A. Problems caused by chemical fertilizers.
Task 1 Skim the passage and match the main idea with each paragraph.
P1.
P2.
P3.
P4.
The main idea of this passage:________________can cause _____________, so ________________ is becoming more popular.
chemical fertilizers
many problems
organic farming
1. Why are chemical fertilizers so popular in farming today?
2. What problems can be caused by using chemical fertilizers?
3. What is organic farming? And what are the advantages of organic farming?
4. What methods do the organic farmers use to keep the soil fertile?
Task 2 Read the passage carefully and answer the following questions
1.Why are chemical fertilizers so popular in farming today?
Many farmers welcomed them as a great way to stop crop disease and increase production.
Paragraph 1
Chemical fertilizer
damage the land or the water supply
damage people’s health
Grow too fast to be full of nutrition
2.What problems can be caused by using chemical fertilizers?
What problems can be caused by using chemical fertilizers?
There are three problems.First, they can damage … as well as …. They also stay in the … and …. In addition, …grow too fast to ….
first;second; finally;last but not least ,etc.
Para 2
There are three problems.First, they can damage … as well as …. They also stay in the … and …. In addition, …grow too fast to ….
Tips: connectives（过渡词） and transitional phrases（过渡词） for development
Paragraph 2
advantages
3.What is organic farming?
What are the advantages of organic farming?
Make the soil richer in
minerals and more fertile
Help crops grow strong and healthy
keep the air, soil, water and crops free from chemicals. (Environment-friendly)
Paragraph 3
Farming without using any chemicals.
It is obvious that
An advantage of organic farming is that
What is even more important is that
That is the reason why many farmer have turned to organic farming.
organic farming means growing crops without using any chemicals.
the farmers focus on keeping their soil rich and free of disease.
it can keep the air , soil, water and crops free from chemicals.
The methods to keep the soil fertile
1.using natural waste from animals as fertilizer.
2.changing the kind of crop in each field .
3.planting crops to use different levels of soil.
4.planting grass between crops to prevent …
The same goal : ________________________
______________________________________
______________________________
to grow good food and to avoid damaging the environment or people’s health.
Paragraph 3 and 4
para1: A new discovery of scientists.
para2: Several problems caused by using chemical fertilizers.
para3: The advantages of using organic farming.
para4: Some methods to keep the soil fertile.
The structure of this passage
Para1 Topic
Para2 Problems
Para3 Advantages
Para4 Several methods
illustration（阐明）
comparison
conclusion
The type of the article is_____________
exposition（说明文）
Over the past half century, …have become very common …. …welcomed them as a … way to …. Recently, however, we have been finding that they can cause damage to …, even …, to people’s health.
What are some of the problems caused by …? First,… Second, …Last but not least, …
With these discoveries, …are beginning to turn to ….
….
The following words may help you.
Problems：
1. cause white pollution
2. easy to be broken
3. difficult to break down
4. do harm to the environment and people's health
Advantages：
1. can be recycled and reused
2. save resources 3.cheap
4. protect the environment
Over the past half century, plastic bags have become very common in our daily life. We welcomed them as a convenient way to carry goods. Recently, however, we have been finding that they can cause damage to the environment, even worse, to people’s health.
What are some of the problems caused by plastic bags? First, people often leave plastic bags here and there, making white pollution. Second, it takes a long time, more than 100 years ,to be exact, to break up .Last but not least, when heated, plastic bags can produce something harmful, which can build up in our body and eventually lead to cancer or other illnesses.
With these discoveries, we are beginning to turn to cloth bags. They can be used many times. People can save a lot of source in this way. It is also a good idea to make some by ourselves, which is interesting.
Let’s use cloth bags in our daily life instead of plastic bags, not only for the environment protection, but also the sake of our health.
Step 3 Supplementary reading
Passage A
What is mainly discussed in this passage?
Why organic food cost more
Lower yields
Rising labor costs
High demand
Reasons Why Consumers Should Buy Organic Food
Passage B
healthy and safe
builds strong future generations
keeps our water clean
results in less soil erosion
offers outstanding flavor
becoming more affordable
reasons
Continually purchase organic food
Your purchases now make a difference in the long run.
Step 4 Making a Dialogue
(Pair work)
Situation:
You are a farmer and your partner is the customer,
who doesn’t know much about the organic food.
You are persuading the customer to buy your
organic food that is healthy and safe but more expensive.
Making a Dialogue (Pair work)
Farmer Customer
It’s better to …
This is good value because…
The advantages are…
It’s more expensive but…
You’ll taste the difference when…
It’s a great pity that… I’d prefer…because…
I don’t like… because…
If I have a choice I’ll choose…
What’s the advantage of…?
I’d rather…
Designing a poster
Design a poster to advertise the organic food you’re selling.
Step 5
How to write a poster
Buy the Best Vegetables Here
We only sell green food!
Best choice at best prices!
Look
1.no chemical fertilizer
2…
3…
You and your family will stay fit and healthy if you eat green food.
Main heading
This explains that
you sell green food.
Reasons to buy:
Reason 1:
Reason 2:
Reason 3:
(Conclusions)
Why it is good value.
brief ,persuasive, vivid
nice , creative
four parts
Content
Language
Design
@
If you want to be healthier and fitter you should eat organic food.
Eat organic food to become healthy and fit.
You ’ll find the taste of organic food more delicious than ordinary vegetables and fruit.
Organic food tastes more delicious. @
Evaluation
After this lesson, I am able to do the following things. Very
well Quite
well OK A
little Little
Explain what organic farming is
Use the correct phrases to try to persuade somebody to do something
Design a poster in English
Think local, choose organic
Percentage 95% 85% 75% 60 % 40 %
Use the information you have learnt today to write a report about organic farming and organic food.
Homework
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