人教版（2019） 选择性必修第一册Unit 5 Working the Land Using Language Writing 课件（13张ppt）
文档属性
| 名称 | 人教版（2019） 选择性必修第一册Unit 5 Working the Land Using Language Writing 课件（13张ppt） |  | |
| 格式 | pptx | ||
| 文件大小 | 22.0MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2022-12-08 22:40:43 | ||
图片预览
文档简介
(共13张PPT)
Chemical
Versus
Organic Farming
Leah
U5 Working the land-Using language
LOREM IPSUM DOLOR
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
Do you know how to farm
Chemical Versus Organic Farming
Which tomatoes do you prefer
5 yuan / kg
30 yuan / kg
Normal tomatoes
Organic tomatoes
chemical pesticides
artificial fertilisers
in widespread use in farming
Since 1950s
many farmers welcomed
fight crop disease
increase production
long-term use harm both the land and people's health.
Some scientists have found
NOW
＋
P1
P2
spraying pesticides on crops
stay in the soil and underground water sources
for a long time
affects
the crops
the animals and humans
bacteria & insects
harmful
helpful
make ill
cause cancer
prohibited
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.
artificial /
man-made
fertilisers
Complete the sentences in the tables.
Para. Main Idea Detail
1-2 Pesticides can kill helpful _________________
Some pesticides have been ___________ because of the ________________
Crops grown with chemical fertilisers usually _____________ to be full of ______________.
bacteria and insects
prohibited
damage
grow too fast
nutrition
D
The problems with chemical farming
artificial /
man-made
fertilisers
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.
P3
How is organic farming different from chemical farming
Organic farming is simply farming without
using any chemicals.
focus on keeping their soil rich
free of disease through natural means
Para. Main Idea Detail
3 Many organic farmers use __________________ as fertiliser.
natural waste
A
What organic farming is
P4
Except for kitchen & animal waste, what else can help produce rich soil without chemicals
4 Main idea: C Organic methods for producing rich soil They often ____________________grown in each field ______________.
They also plant crops that use ______________ of the soil to help keep it rich.
change the kind of crop
every year
different depths
because they put important minerals back into the ground, making it ready for the next batch of crops
to grow good food while avoiding damage to the environment or to people’s health
P5
Should we stop the use of man-made chemicals entirely
What keeps people 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.
远远不可能；远非
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.
5 Main idea Organic farming is nowhere near able to meet the high _______________________________.
demand for food
B
Why man-made chemicals are still used in farming
Words & expressions review
1. 被广泛使用
2. 随着时间推移
3. 长期的使用
4. 反过来，相反地
5. v.禁止
6. v. 富含...
7. 必需的矿物质
8. 转向
9. 专注于
10. 例如
11. 满足对食物的高需求
12. 远非如此，远远不
13. 尽可能的健康
be in widespread use
over time
long-term use
in turn
prohibited
be rich in
essential minerals
switch to
focus on
be devoted to
for instance,
serve the high demand for food
meet the need/satisfy the need of
nowhere near
This is far from the case.
as healthy as possible
Present & Future: High-Tech Farming
The green economy:
Are you willing to get involved in agriculture？
Thanks
Chemical
Versus
Organic Farming
Leah
U5 Working the land-Using language
LOREM IPSUM DOLOR
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
Do you know how to farm
Chemical Versus Organic Farming
Which tomatoes do you prefer
5 yuan / kg
30 yuan / kg
Normal tomatoes
Organic tomatoes
chemical pesticides
artificial fertilisers
in widespread use in farming
Since 1950s
many farmers welcomed
fight crop disease
increase production
long-term use harm both the land and people's health.
Some scientists have found
NOW
＋
P1
P2
spraying pesticides on crops
stay in the soil and underground water sources
for a long time
affects
the crops
the animals and humans
bacteria & insects
harmful
helpful
make ill
cause cancer
prohibited
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.
artificial /
man-made
fertilisers
Complete the sentences in the tables.
Para. Main Idea Detail
1-2 Pesticides can kill helpful _________________
Some pesticides have been ___________ because of the ________________
Crops grown with chemical fertilisers usually _____________ to be full of ______________.
bacteria and insects
prohibited
damage
grow too fast
nutrition
D
The problems with chemical farming
artificial /
man-made
fertilisers
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.
P3
How is organic farming different from chemical farming
Organic farming is simply farming without
using any chemicals.
focus on keeping their soil rich
free of disease through natural means
Para. Main Idea Detail
3 Many organic farmers use __________________ as fertiliser.
natural waste
A
What organic farming is
P4
Except for kitchen & animal waste, what else can help produce rich soil without chemicals
4 Main idea: C Organic methods for producing rich soil They often ____________________grown in each field ______________.
They also plant crops that use ______________ of the soil to help keep it rich.
change the kind of crop
every year
different depths
because they put important minerals back into the ground, making it ready for the next batch of crops
to grow good food while avoiding damage to the environment or to people’s health
P5
Should we stop the use of man-made chemicals entirely
What keeps people 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.
远远不可能；远非
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.
5 Main idea Organic farming is nowhere near able to meet the high _______________________________.
demand for food
B
Why man-made chemicals are still used in farming
Words & expressions review
1. 被广泛使用
2. 随着时间推移
3. 长期的使用
4. 反过来，相反地
5. v.禁止
6. v. 富含...
7. 必需的矿物质
8. 转向
9. 专注于
10. 例如
11. 满足对食物的高需求
12. 远非如此，远远不
13. 尽可能的健康
be in widespread use
over time
long-term use
in turn
prohibited
be rich in
essential minerals
switch to
focus on
be devoted to
for instance,
serve the high demand for food
meet the need/satisfy the need of
nowhere near
This is far from the case.
as healthy as possible
Present & Future: High-Tech Farming
The green economy:
Are you willing to get involved in agriculture？
Thanks