人教版（2019）选择性必修第一册 Unit 5 Working the Land Using Language 课件(22张)
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| 名称 | 人教版（2019）选择性必修第一册 Unit 5 Working the Land Using Language 课件(22张) |  | |
| 格式 | pptx | ||
| 文件大小 | 9.5MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-09-20 08:59:51 | ||
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(共22张PPT)
Unit 5 Working the Land
Using Language2
Evaluate chemical farming and organic farming
Welcome to
Julie's class!
__________
artificial
fertilizers
chemical pesticides
vs
＄2 per pounds
＄5 per pounds
chemical
farming
organic
farming
Q: Which kind of tomato will you buy Why
no chemicals
animal natural waste
What is covered in the first paragraph
Chemical pesticides and artificial fertilizers have been in widespread use in farming since the middle of the 20th century. When they were first introduced, many farmers welcomed them as a great way to fight crop disease and increase production. Over time, however, what some scientists have found is that their long-term use can sometimes harm both the land and people’s health.
advantage
limitation
however
definition
Predict: What may be talked in the second paragraoh
Chemical pesticides and artificial fertilizers have been in widespread use in farming since the middle of the 20th century. When they were first introduced, many farmers welcomed them as a great way to fight crop disease and increase production. Over time, however, what some scientists have found is that their long-term use can sometimes harm both the land and people’s health.
For example, pesticides can damage the land by killing not only harmful bacteria and insects, but also helpful ones. In addition, these chemicals can stay in the soil and underground water sources for a long time. This affects the crops grown on the land and, in turn, the animals and humans who digest them. Many people worry that these chemicals may make them ill and even cause cancer. In fact, some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment. As for chemical fertilisers, crops grown with them usually grow too fast to be rich in nutrition. They may look beautiful on the outside, but inside there is usually more water than essential minerals, and they often have less flavour as well.
Check the prediction
general
specific
definition
advantage
limitation
langu-age
Q: Comparing people’s attitude towards the chemical farming, what can you learn
quantity of food
safety of crop
quality of food
environment/health
the focus of agriculture:
quantity of food
safety of crop
farming using chemical pesticides and artificial fertilisers
language
give clear definition
however/but:contrast
for example: example
in turn/also:
explanation
in fact
in addition
as for
chemical farming
definition
solution
advantage
limitation
fight crop disease
increase production
harm both the land and people’s health
pesti-
cides
damage the land by killing the whole bacteria and insects
(direct)
affect the animals and humans (indirect)
chemical fertilisers
less nutrition, essential minerals and flavour
switch to organic farming
linking
words
focus
Based on the title and what we have learned, predict what the rest of the passage will cover.
Chemical versus Organic Farming
definition
advantage
limitation
focus
As an alternative, some farmers have switched to organic farming, and many customers have turned to organic food when they shop at the local grocery. Organic farming is simply farming without using any chemicals. Organic farmers focus on keeping their soil rich and free of disease through natural means. For example, many organic farmers use natural waste from animals as fertiliser. This makes the soil in their fields richer in minerals. It also keeps the air, soil, water, and crops free of chemicals.
Organic farmers also use many other methods to produce rich soil. They often change the kind of crop grown in each field every year. For instance, they may grow corn or wheat in a field one year, and then grow beans there the next. Why different crops are grown is because they put important minerals back into the ground, making it ready for the next batch of crops. Organic farmers also plant diverse crops that use different depths of soil to help keep it rich. For example, peanuts grow on the ground's surface, but many other vegetables put down deep roots. The goal of using different organic farming methods is to grow good food while avoiding damage to the environment or to people's health.
Some people would prefer to stop the use of man-made chemicals in agriculture entirely. What keeps them from doing so is the fact that chemical farming serves the high demand for food around the world. Organic farming is nowhere near able to meet that need. Therefore, there is still a long way to find a suitable solution that puts sufficient food on the dinner table while keeping people and the environment as healthy as possible.
definition
focus
limitation
langu-age
method
advantage
environment, health
simply farming without using any chemicals
language
give clear definition
for example/for instance: example
also:
further explanation
but: contrast
therefore:
linking words
organic farming
definition
solution
advantage
limitation
keeping their soil rich and free of disease through natural means
1. use natural waste from animals as fertilizer
2. change crop yearly
3. plant diverse crops
soil richer in minerals; air, soil, water, and crops free of chemicals
put important minerals back into the ground
nowhere near able to meet that need
keep the soil rich
find a suitable solution
focus
definition
advantage
limitation
chemical farming organic farming
focus quantity of food/safety of crop environment, health
definition farming using chemical pesticides and artificial fertilisers simply farming without using any chemicals
advantage fight crop disease increase production
limitation nowhere near able to meet that need
solution switch to organic farming find a suitable solution
definition,
explanation,
contrast,
examples,
linking words
...
writing
technique
definition
advantage
limitation
chemical farming organic farming
focus quantity of food/safety of crop environment, health
definition farming using chemical pesticides and artificial fertilisers simply farming without using any chemicals
advantage fight crop disease increase production
limitation nowhere near able to meet that need
solution switch to organic farming find a suitable solution
definition,
explanation,
contrast,
examples,
linking words
...
writing
technique
clear & coherent
structure
content
language
convincing
logical
focus:
quantity of food
safety of crop
limitation:
harm the land
harm people’s health
advantage:
fight crop disease
increase production
limitation:
hardly meet the need
focus:
environment, health
advantage:
keeping their soil rich and free of disease through natural means
organic
farming
vs
chemical
farming
Discussion:
If you were the farmer, what kind of farming will you choose
alternative
Writing
Evaluate chemical farming and organic farming
convincing !
state the opinion
supporting details
focus
advantage
conclusion
In my opinion, _______ farming is preferable to _________ farming because_____________________.
point1: ________________________________________
more details
point2:________________________________________
more details
......
conclusion
attention: structure content language
Writing technique: definition, explanation,contrast,examples, linking words...
Revise your first draft according to the checklist and polish the language.
√Does the writer do a good job of expressing his/her opinion
√Does the writer mention the focus and advantages of the farming
√Does each paragraph have at least one detail to support its main idea
√Does the writer sequence the points in a logical order
√Does the writer do a good job persuading you to accept his/her opinion
Share and polish
focus:
quantity of food
safety of crop
limitation:
harm the land
harm people’s health
advantage:
fight crop disease
increase production
limitation:
hardly meet the need
focus:
environment, health
advantage:
keeping their soil rich and free of disease through natural means
organic
farming
vs
chemical
farming
Questions to think:
1. What would be the focus of future farming
2. How can we achieve these focuses
future
farming
alternative
limitation:
hardly meet the need
Organic
Farming
vs
focus:
quantity of food
safety of crop
limitation:
harm the land
harm people’s health
Chemical
Farming
focus:
environment, health
advantage:
keeping their soil rich and free of disease through natural means
advantage:
fight crop disease
increase production
03
strengthen scientific and technological innovation
cultivate environmental awareness
添加标题
promote international cooperation
01
02
increase the management and planning of agricultural production
sustainable development
a Community with a Shared Future
+
theme
Assignment
请写一篇文章阐述你对未来农业的看法。内容包括：
1. 未来农作方式及其关注点；
2. 为实现未来农业，我们应做的努力。
注意：1. 词数80左右；
2. 可适当增加细节，以使行文连贯。
opinion
supporting details
conclusion
advantage
focus
effort
what kind of farming
organic
Farming
vertical farming
chemical
Farming
.......
Opinions about farming vary from person to person. As far as I’m concerned, _______________.
advantage1
focus
what kind of farming
detailed explanation
+
advantage2
detailed explanation
+
effort
individual
scientists
farmers
governments around the world
conclusion
......
......
Voice your opinion
writing
technique
definition,
explanation,
contrast,
examples,
linking words
Attention: theme structure content language
√Does the writer do a good job of expressing his/her opinion
√Does the writer mention the focus and efforts of future farming
√Does the writer sequence the points in a logical order
√Does the writer analyze the efforts people will make for future farming from different angles
√Does the writer picture the future farming vividly and convincing
Checklist for assignment
chemical farming
organic
Farming
future
farming
sustainable development
THANK YOU
Unit 5 Working the Land
Using Language2
Evaluate chemical farming and organic farming
Welcome to
Julie's class!
__________
artificial
fertilizers
chemical pesticides
vs
＄2 per pounds
＄5 per pounds
chemical
farming
organic
farming
Q: Which kind of tomato will you buy Why
no chemicals
animal natural waste
What is covered in the first paragraph
Chemical pesticides and artificial fertilizers have been in widespread use in farming since the middle of the 20th century. When they were first introduced, many farmers welcomed them as a great way to fight crop disease and increase production. Over time, however, what some scientists have found is that their long-term use can sometimes harm both the land and people’s health.
advantage
limitation
however
definition
Predict: What may be talked in the second paragraoh
Chemical pesticides and artificial fertilizers have been in widespread use in farming since the middle of the 20th century. When they were first introduced, many farmers welcomed them as a great way to fight crop disease and increase production. Over time, however, what some scientists have found is that their long-term use can sometimes harm both the land and people’s health.
For example, pesticides can damage the land by killing not only harmful bacteria and insects, but also helpful ones. In addition, these chemicals can stay in the soil and underground water sources for a long time. This affects the crops grown on the land and, in turn, the animals and humans who digest them. Many people worry that these chemicals may make them ill and even cause cancer. In fact, some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment. As for chemical fertilisers, crops grown with them usually grow too fast to be rich in nutrition. They may look beautiful on the outside, but inside there is usually more water than essential minerals, and they often have less flavour as well.
Check the prediction
general
specific
definition
advantage
limitation
langu-age
Q: Comparing people’s attitude towards the chemical farming, what can you learn
quantity of food
safety of crop
quality of food
environment/health
the focus of agriculture:
quantity of food
safety of crop
farming using chemical pesticides and artificial fertilisers
language
give clear definition
however/but:contrast
for example: example
in turn/also:
explanation
in fact
in addition
as for
chemical farming
definition
solution
advantage
limitation
fight crop disease
increase production
harm both the land and people’s health
pesti-
cides
damage the land by killing the whole bacteria and insects
(direct)
affect the animals and humans (indirect)
chemical fertilisers
less nutrition, essential minerals and flavour
switch to organic farming
linking
words
focus
Based on the title and what we have learned, predict what the rest of the passage will cover.
Chemical versus Organic Farming
definition
advantage
limitation
focus
As an alternative, some farmers have switched to organic farming, and many customers have turned to organic food when they shop at the local grocery. Organic farming is simply farming without using any chemicals. Organic farmers focus on keeping their soil rich and free of disease through natural means. For example, many organic farmers use natural waste from animals as fertiliser. This makes the soil in their fields richer in minerals. It also keeps the air, soil, water, and crops free of chemicals.
Organic farmers also use many other methods to produce rich soil. They often change the kind of crop grown in each field every year. For instance, they may grow corn or wheat in a field one year, and then grow beans there the next. Why different crops are grown is because they put important minerals back into the ground, making it ready for the next batch of crops. Organic farmers also plant diverse crops that use different depths of soil to help keep it rich. For example, peanuts grow on the ground's surface, but many other vegetables put down deep roots. The goal of using different organic farming methods is to grow good food while avoiding damage to the environment or to people's health.
Some people would prefer to stop the use of man-made chemicals in agriculture entirely. What keeps them from doing so is the fact that chemical farming serves the high demand for food around the world. Organic farming is nowhere near able to meet that need. Therefore, there is still a long way to find a suitable solution that puts sufficient food on the dinner table while keeping people and the environment as healthy as possible.
definition
focus
limitation
langu-age
method
advantage
environment, health
simply farming without using any chemicals
language
give clear definition
for example/for instance: example
also:
further explanation
but: contrast
therefore:
linking words
organic farming
definition
solution
advantage
limitation
keeping their soil rich and free of disease through natural means
1. use natural waste from animals as fertilizer
2. change crop yearly
3. plant diverse crops
soil richer in minerals; air, soil, water, and crops free of chemicals
put important minerals back into the ground
nowhere near able to meet that need
keep the soil rich
find a suitable solution
focus
definition
advantage
limitation
chemical farming organic farming
focus quantity of food/safety of crop environment, health
definition farming using chemical pesticides and artificial fertilisers simply farming without using any chemicals
advantage fight crop disease increase production
limitation nowhere near able to meet that need
solution switch to organic farming find a suitable solution
definition,
explanation,
contrast,
examples,
linking words
...
writing
technique
definition
advantage
limitation
chemical farming organic farming
focus quantity of food/safety of crop environment, health
definition farming using chemical pesticides and artificial fertilisers simply farming without using any chemicals
advantage fight crop disease increase production
limitation nowhere near able to meet that need
solution switch to organic farming find a suitable solution
definition,
explanation,
contrast,
examples,
linking words
...
writing
technique
clear & coherent
structure
content
language
convincing
logical
focus:
quantity of food
safety of crop
limitation:
harm the land
harm people’s health
advantage:
fight crop disease
increase production
limitation:
hardly meet the need
focus:
environment, health
advantage:
keeping their soil rich and free of disease through natural means
organic
farming
vs
chemical
farming
Discussion:
If you were the farmer, what kind of farming will you choose
alternative
Writing
Evaluate chemical farming and organic farming
convincing !
state the opinion
supporting details
focus
advantage
conclusion
In my opinion, _______ farming is preferable to _________ farming because_____________________.
point1: ________________________________________
more details
point2:________________________________________
more details
......
conclusion
attention: structure content language
Writing technique: definition, explanation,contrast,examples, linking words...
Revise your first draft according to the checklist and polish the language.
√Does the writer do a good job of expressing his/her opinion
√Does the writer mention the focus and advantages of the farming
√Does each paragraph have at least one detail to support its main idea
√Does the writer sequence the points in a logical order
√Does the writer do a good job persuading you to accept his/her opinion
Share and polish
focus:
quantity of food
safety of crop
limitation:
harm the land
harm people’s health
advantage:
fight crop disease
increase production
limitation:
hardly meet the need
focus:
environment, health
advantage:
keeping their soil rich and free of disease through natural means
organic
farming
vs
chemical
farming
Questions to think:
1. What would be the focus of future farming
2. How can we achieve these focuses
future
farming
alternative
limitation:
hardly meet the need
Organic
Farming
vs
focus:
quantity of food
safety of crop
limitation:
harm the land
harm people’s health
Chemical
Farming
focus:
environment, health
advantage:
keeping their soil rich and free of disease through natural means
advantage:
fight crop disease
increase production
03
strengthen scientific and technological innovation
cultivate environmental awareness
添加标题
promote international cooperation
01
02
increase the management and planning of agricultural production
sustainable development
a Community with a Shared Future
+
theme
Assignment
请写一篇文章阐述你对未来农业的看法。内容包括：
1. 未来农作方式及其关注点；
2. 为实现未来农业，我们应做的努力。
注意：1. 词数80左右；
2. 可适当增加细节，以使行文连贯。
opinion
supporting details
conclusion
advantage
focus
effort
what kind of farming
organic
Farming
vertical farming
chemical
Farming
.......
Opinions about farming vary from person to person. As far as I’m concerned, _______________.
advantage1
focus
what kind of farming
detailed explanation
+
advantage2
detailed explanation
+
effort
individual
scientists
farmers
governments around the world
conclusion
......
......
Voice your opinion
writing
technique
definition,
explanation,
contrast,
examples,
linking words
Attention: theme structure content language
√Does the writer do a good job of expressing his/her opinion
√Does the writer mention the focus and efforts of future farming
√Does the writer sequence the points in a logical order
√Does the writer analyze the efforts people will make for future farming from different angles
√Does the writer picture the future farming vividly and convincing
Checklist for assignment
chemical farming
organic
Farming
future
farming
sustainable development
THANK YOU