(共22张PPT)
Unit 5 Working the land
My lifelong persuit is to keep all the people away from hunger.
Get to know an agricultural scientist:
A Pioneer for all People
(Reading and Thinking)
Build up your vocabulary:
(Learning about language)
Design a poster : World Food Day
(Project)
Innovation in Agriculture:
(listening )
Using language:
Chemical Versus Organic Farming
(Using language) Reading for writing
Better, Greener Lives away from the City
(Reading and Thinking )
Earth University:
(Video Time )
Raise awareness and knowledge of the problems and causes behind world hunger and poverty
Using language:
Explore the world hunger problem
(Using language) Listening and Speaking
Expanding your world: Amazing Methods of Agriculture
(Reading )
Food is life .
AMAZING METHODS OF
AGRICULTURE
workbook
Expanding Your World (p94)
Learning objectives
To learn some amazing agricultural methods;
To master some elegant expressions from the text;
To practice basic reading skills;
AMAZING METHODS OF AGRICULTURE
amazing
methods
agriculture
1
2
3
4
5
6
7
8
P1 the _________ of the past farming work
P2 exceptional __________changed the farming methods
p3-5 the invention of ________________
P6 the development of_____________
P7 innovations in _____________________
P8 farmers are more likely to be _____________ in the future
difficulty
drip irrigation
hydroponics
agricultural mahcinery
technicians
main idea of each part
which one is a transition paragraph(过渡段）
innovations
drip irrigation(滴灌)
Para. 3-5
hydroponics(水培)
Para. 6
agricultural machinery(农机)
Para. 7
Modern science and technology have helped to greatly reduce the back-breaking labour involved in farming, along with the reliance on luck and guesswork. These advances have enabled people in various countries to benefit from exceptional innovations in crop production.
P2 exceptional innovations changed the farming methods
P1 the difficulty of the past farming work
Agriculture has come a long way from it’s ancient beginnings. Long ago, farmers would work hard on their individual plots of land, using simple tools or even their bare hands, They tended to their crops for many hours each day so that the crops grew well and did not suffer from pests or disease. Luck played a great part in farming. For example, a single storm could destroy a whole year's work, while a summer of good weather could ensure a good harvest.Where farms were located was often critical to success, too. In hilly countries, some lucky farmers would have land in the lowlands-full of deep, rich soil, while other unlucky farmers would have land on the hills with hard soil full of stones. In addition, some areas would simply be too dry or too wet to grow much of value.
Which words can show the difficulty of the past farming work
P1 the difficulty of the past farming work
Agriculture has come a long way from it’s ancient beginnings. Long ago, farmers would work hard on their individual plots of land, using simple tools or even their bare hands, They tended to their crops for many hours each day so that the crops grew well and did not suffer from pests or disease. Luck played a great part in farming. For example, a single storm could destroy a whole year's work, while a summer of good weather could ensure a good harvest.Where farms were located was often critical to success, too. In hilly countries, some lucky farmers would have land in the lowlands-full of deep, rich soil, while other unlucky farmers would have land on the hills with hard soil full of stones. In addition, some areas would simply be too dry or too wet to grow much of value.
tools
advanced agricultural machinery
soil
hydroponics[ ha dr p n ks]
n. 水栽培，水耕法；
water
drip irrigation
Probably one of the most beneficial innovations is drip irrigation , which has made it possible to develop big, green farms in the middle of the desert. While there have been experiments in different places in the past to make drip irrigation a reality, it is in the Middle Eastern country of Israel that drip irrigation has become a modern success .
How Simcha Blass, a scientist,discovered this new way of irrigation is rather interesting. He was visiting a friend in the Israeli desert in the 1930s when he noticed something unusual. There was a row of trees near his friend's house, and one of them was much taller than the others. When Blass dug around the roots to find out what the secret was,he discovered that the house's water pipe had a small leak at the base of the tree. The pipe's steady drip onto the tree's roots Was giving it just enough water at the perfect rate to grow strong and quickly.
Trough this discovery, farmers can now produce crops on arid land without needing much water. This irrigation method uses far less water than other methods. The limited and focused use of just the right amount of water also denies moisture to weeds and pests, keeping them from harming the crops.
P3-5 the invention of drip irrigation
P3-5 the invention of drip irrigation
Read p3 and fill in the blanks
drip irrigation
areas
(where can
we use)
characters of water
benefits of the method
steady drip, at a perfect rate
limited and focused
desert arid land
save water
use far less of water
leak
keep weeds and pests from harming the crops
Israel [ zre l]
P6 the development of hydroponics
P6 the development of hydroponics
Read P4 and find out the detailed information
hydroponics
areas
(where can
we use)
needs
leading country
little usable soil
soil conditions are poor
rocks
China
vertical hydroponics
fibre mat Nutrient-rich water trays plant skyscrapers
galss beads
either partially
or fully automated.
P7 innovations in agricultural machinery
Besides drip irrigation and hydroponics, scientists have made impressive innovations in agricultural machinery. Of course, the most important and useful agricultural machines, such as tractors and harvesters, were invented long ago. However, many such machines are now self-driving. They use cameras and a positioning system to see where they are and where they are going and their routes can be planned by a computer. Depending upon the crop, some farms hundreds or thousands of hectares in size can be managed by just a handful of workers using machines such as these. For fruit cultivation, robots are now being employed in some countries. For instance, in Japan, robots are used to spray individual grape clusters with insecticide, trim them so they are all of equal size,bag them so that they can be further protected from pests and the elements, and then harvest them when they are ripe. In other countries, robots are being used to harvest oranges and strawberries, plant rice, and spray pesticides.The field of agricultural robotics is still in its infancy, so there is still a need for human labour to harvest many crops. To help ease this burden, there are also robots that can help workers carry fruit and vegetables to storage areas.
save labors
What agricultural machines can we use
What work can the robots do
For instance, in Japan, robots are used to spray individual grape clusters with insecticide, trim them so they are all of equal size,bag them so that they can be further protected from pests and the elements, and then harvest them when they are ripe.
1. At this store, people check out and then go off to the side to bag their own groceries.（2021年浙江卷）
the elements: 恶劣天气
2.As a nature photographer, I have to brave the elements.
But despite the wind and the rain, I still enjoy working outside in the wild.
(新外研版B1U5)
作为一名自然摄影师，我必须要风雨无阻地行动。但尽管风吹雨淋，我仍然享受在野外工作。这份工作的好处之一是你可以观察到自然状态下的动物。
P8 farmers are more likely to be technicians in the future
With such technological advances,the image of a farmer pushing a plough will eventually become a thing of the past. Farmers of the future are more likely to be technicians working in control rooms, surrounded by computers and monitors. Indeed, some farmers already are.
P8 farmers are more likely to be technicians in the future
With such technological advances,the image of a farmer pushing a plough will eventually become a thing of the past. Farmers of the future are more likely to be technicians working in control rooms, surrounded by computers and monitors. Indeed, some farmers already are.
What does the writer think of future agriculture
A.Unclear B. Promising C. Hopeful D. Advanced
√
√
√
With the development of the technology, we can free our hands .
However, if we want to have a better life,we must learn to use our brains.
We can use our brains to create more amazing methods of agriculture in the future.
The teacher’s message
Homework:
1.Try to find more information about China’s vertical hydroponics.
2.Try to find more amazing methods of agriculture on the Internet.
