资源简介

(共58张PPT)
高中英语新人教版选择性必修一
Unit 5 WORKING THE
LAND
Explore the world hunger problem
Evaluate chemical farming and organic farming
Using Language
Learning objectives
Know about the problem of world hunger and understand the content of listening text ;
Talk with their peers about the clauses of world hunger and voice their opinions on possible solutions to hunger;
Know the difference between chemical farming and organic farming and the structure of an argumentative essay;
Write an argumentative essay using what they will learn in this period.
Contents
1. Lead in
2. Pre-listening
3. While Listening
4. Post Listening
5. Pre-reading
6. While Reading
7. Post Reading
8. Summary
9.Assessment
10.Assignment
01. Lead in
Watch the video to tell your feelings.
Lead in
Lead in
Lead in
Lead in
02. Pre-listening
What can you see in the photos What’s the problem behind those photos
Drought
War
Famine（饥荒）
Hunger problem
What’s the common problem they may cause
Pre-listening
docerID:4610637
drought
The soil is cracked. A child is pouring water onto the ground. When there is drought, crops cannot grow and animals may die.
war
Hunger often comes with war, as people can’t farm to grow food or work to earn money to buy food. And, the markets might be empty or closed.
famine
The child in the photo is a victim of famine, which is why his/her arm and hand are so thin. Famine is when the crops don’t grow and there is not enough food to eat.
What should we do
Pre-listening
03.
While Listening
Task 1 Listen to a radio interview and take notes.
Then answer the following questions.
1.What is FAO What is its mission
2.What can seriously affect crop production
3.What does the FAO think about nutritious food
4.What is the FAO doing to alleviate world hunger
5.What does the FAO suggest countries do
While Listening
___________________________________ can seriously affect crop production.
FAO stands for ____________________________. Its aim is to ___________________________.
3. What does the FAO think about nutritious food
Food and Agriculture Organisation
eliminate world hunger
2. What can seriously affect crop production
1. What is the FAO
What is its mission
4. What is the FAO doing to alleviate world hunger
5.What does the FAO suggest countries do
Droughts, floods, and climate change
The FAO believes everyone should _____________________________
have the right to get healthy food
The FAO _____________ called Climate- Smart Agriculture, which helps countries to __________________________.
runs a project
develop sustainable agriculture
Every country needs to focus on ________________________ in agriculture too, which can often _________ the whole world.
making new achievements
benefit
3. What does the FAO think about nutritious food
4. What is the FAO doing to alleviate world hunger
？
Causes
droughts
floods
climate change
poverty
war
heavily affects ________________ and_____________
people cannot ________ or have access to enough ________________
They can affect _____________
Listen to section 2 of the interview and figure out the causes of world hunger.
afford
nutritious food
food production
transpotation
crop production
How does David prove that the 5 factors cause hunger
By providing supporting details
While Listening
Measures
the UN
countries
individuals
make efforts to reduce _____________
develop sustainable _____________
make new ______________
eliminate _______________
buy food that supports the _______________
never _____________
FAO
achievements
global conflict
waste food
Listen to section 3 of the interview and try to answer:
agriculture
climate change
What measures can be taken to alleviate world hunger？
environment
While Listening
Task 2 Listen again and identify how the speaker supports his facts. Match the supporting evidence with the facts.
1. According to our latest figures,.....
2. There is strong evidence to suggest that....
3. Our research indicates that ....
A.wars can heavily affect food production and transportation
B.(world hunger) stands at around 11% of the world’s population
C.many people just can’t afford to eat well
B
C
A
While Listening
Host：Good morning, listeners. Today is World Food Day, and David Bond from the UN's FAO is here to talk to us about world hunger. Welcome, David! Please explain what the FAO is and what its aims are.
David： Good morning. For those who don’t know, FAO stands for Food and Agriculture Organisation.And our aim is simple----to eliminate world hunger, which, according to our latest figures, stands at around 11% of the world's population.
Host：So I guess things like droughts, floods, and climate change are all major factors in this.
David： Yes, that’s right, they can all seriously affect crop production. And another factor is poverty.There is strong evidence to suggest that many people just can’t afford to eat well. And it's not just about having enough food to eat; people need to eat enough nutritious food, which often they cannot afford or do not have access to. The FAO believes everyone should have the right to healthy food.
While Listening
Sample Dialogue
Host：And what about war I’ve seen many researchers say that it directly leads to mass hunger.
David： Absolutely true. Our research indicates that wars can heavily affect food production and transportation, meaning that millions of people have to go hungry.
Host：So what can we do to alleviate world hunger
David： Well, the UN is making efforts to reduce climate change, and the FAO runs a project called Climate-Smart Agriculture, which helps countries to develop sustainable agriculture. However, every country needs to focus on making new achievements in agriculture, too, which can often benefit the whole world. Like China, for example, whose development of hybrid rice has greatly increased rice production in many other countries. And, of course, global conflict must be eliminated. And don’t forget that we as individuals can also make a difference： buy food that supports the environment, and never waste food.
Host：David Bond, thank you very much. Just a quick message to our listeners： you can find more information on world hunger on the FAO website ...
While Listening
Sample Dialogue
Identify supporting evidence
When people present important facts, they usually give some evidence to support their claims.The evidence is usually mentioned at the start of a sentence.Listen out for key words like report, research,studies,figures,findings,etc.
04.
Post Listening
Based on the causes of world hunger, what other measures can be taken to help alleviate world hunger
Possible causes Possible solutions
droughts floods climate change poverty war ......
Tip: Use a table to help you organise your thoughts.
policies and laws
social media
scientific/technical changes
personal lifestyles
.....
Post Listening
Pair Work: Discuss the following questions and list your ideas
in the table below.
.
Possible causes Possible solutions
droughts floods climate change poverty war ...... policies and laws
social media
scientific/technical changes
personal lifestyles
.....
Based on the causes of world hunger, what other measures can be taken to help alleviate world hunger
Useful expressions
In my eyes/opinion ...
From my point of view, ...
From my perspective, ...
I think/guess/believe that ...
My view/opinion/belief is that ...
Post Listening
Pair Work: Discuss the following questions and list your ideas
in the table below.
.
I'd rather...
In my opinion...
The advantages are...
It's a pity that...
My impression is that...
From my point of view,...
My view/opinion/belief is that...
In my eyes...
Without a doubt...
I have a feeling that...
I'd prefer...because...
I think/guess/believe...
Sharing your opinions
Post Listening
05.
Pre-reading
Do you know the steps of how to plant
select the seeds
plough the soil
turn over the soil
sow the
seeds
remove the weeds
fertilize
harvest
Pre-reading
Please watch a video of organic farming.
Pre-reading
What are the farmers doing
They are fertilising the crops.
What kinds of fertilisers do they use
organic fertiliser
chemical fertiliser
Now, let's read a text to
find the answer.
What kind of farming are they doing
Organic farming
Chemical farming
Pre-reading
06.
While Reading
READ FOR THE MAIN IDEA
The text mainly talks about chemical farming and organic farming. ________________ can cause many problems, as an alternative, some people switch to ________________.
Chemical farming
organic farming
While Reading
Chemical Versus Organic Farming
A. Why are man-made chemicals still used in farming
B. What are the problems with chemical farming
C. What is organic farming
D. What are the organic methods for producing rich soil
Para 1-2
Para 3
Para 4
Para 5
Please skim the text to match the questions with the paragraphs.
Note: The topic sentence of each paragraph and the signposts will be of help.
Text Type:Exposition
READ FOR STRUCTURE
While Reading
Title
The _______ and _________ of chemical farming.
benefits
problems
Part 1:
(Para 1&2)
What organic farming is and __________________.
how it keep the soil rich
Part 2:
(Para 3&4)
Part 3:
(Para 5)
Conclusion
READ FOR STRUCTURE
While Reading
Skim the text, and then answer the following questions.
1. Why did many farmers welcome the introduction of chemical farming
2. What concerns many people about the use of pesticides
3. What is one problem with the use of chemical fertilisers
4. How is organic farming different from chemical farming
5. Why do organic farmers change the kind of crop grown in a field every year
6. What is the goal of using organic farming methods Do you think it can be reached Why or why not
7.Why are man-made chemicals still used
While Reading
READ FOR DETAILS
Skim the text, and then answer the following questions.
While Reading
1. Why did many farmers welcome the introduction of chemical farming
Many farmers welcomed them as a great way to fight crop diseases and increase production.
2. What concerns many people about the use of pesticides
Their long-term use can sometimes harm both the land and people’s health.
Para.1
While Reading
3. What is one problem with the use of chemical fertilisers
Crops grown with them usually grow too fast to be rich in nutrition.
Para.2
While Reading
some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment.
Para. Main idea Details
1&2 Problems with Chemical farming Topic sentence: Many farmers welcomed chemical farming as a great way to and .
However,________________________________________.
For example, Pesticides can by killing bacteria and insects.
In addition, .
This affects not only but also _____.
In fact, .
As for chemical fertilizers,
Crops are lacking in________________or have .
increase production
fight crop disease
what some scientists have found is that their long-term use can sometimes harm both the land and people’s health.
damage the land
these chemicals can stay in the soil and underground water sources for a long time.
the crops
animals and humans
nutrition/essential minerals
less flavour
Benefit
Problem
Solution

switch to organic farming
While Reading
Read again and then finish the table.
4. How is organic farming different from chemical farming
Organic farming is simply farming without using any chemicals. Organic farmers focus on keeping their soil rich and free of diseases
through natural means.
Para.3
While Reading
5. Why do organic farmers change the kind of crop grown in a field every year
Different crops are grown because they put important minerals back into the ground, making it ready for the next batch of crops.
Para.4
While Reading
6. What is the goal of using organic farming methods
Do you think it can be reached Why or why not
The goal of using different organic farming methods is to grow good food while avoiding damage to the environment or to people’s health.
Para.4
Para. Main idea Details
3&4 Organic methods for producing rich soil Topic sentence: Organic farming focuses on keeping the soil rich and free of disease through natural means.
For example, Organic farmers use ____________ from animals as fertiliser.
This makes the soil in their fields _______ in minerals.
It also keeps the air, soil, water and crops free of __________.
Organic farmers also use many other methods to produce rich soil.
They often _________________ grown in each field every year.
For instance, they may grow in a filed one year, and then grow there the next.
Why different crops are grown is because they put important __________ back into the ground, making it ready for the next batch of crops.
Organic farmers also plant diverse crops that use different _________ of soil to help keep it rich.
For example, .
natural waste
richer
chemicals
change the crops
corn or wheat
beans
minerals
depths
peanut grow on the ground’s surface, but many other vegetables put down deep roots
Benefit
While Reading
Read again and then finish the table.
While organic farming is nowhere near able to .
7.Why are man-made chemicals still used
Chemical farming can meet ______________ for food around the world.
the high demand
Chemical farming guarantees(确保) a ______ yield/ output.
higher
More reasons
requires a ______ cost.
lower
needs ____ effort.
less
Therefore, there is still a long way to find a suitable solution that puts sufficient food while keeping people and the environment as healthy as possible.
meet that need
Problem
Solution

While Reading
Para.5
07.
Post Reading
Discuss the advantages and disadvantages of organic and chemical farming in groups.
Farming Advantages Disadvantages
Chemical farming ......
......
Organic farming
Fight crop disease
Increase production
Lower cost
Crops look beautiful outside
Harm the land
Harm people’s health
Harm the environment
Crops are less in nutrition
Good food
Avoiding damage to the environment or to people’s health
Cannot meet the demand for food
More efforts and higher cost
Smelly gases
Post Reading
There are abundant transitional words used in the text, please circle them and put them into different categories.
Function Transitional words
contrast
illustrate
add information
cause and effect
introduce a new topic
however, but
for example, for instance, in fact
both…and…, not only…but also, in addition, and, also, as well,
why… is because…, therefore
as for, as an alternative
Post Reading
READ FOR LANGUAGE FEATURES





however, but, on the contrary, instead, on one hand … on the other hand
for example, for instance, in fact, such as, take … for example
both…and…, not only…but also, in addition, and, also, as well, what’s more, besides, furthermore, moreover, what’s worse
why…is because…, therefore, for this reason, thus, consequently, as a ressult
as for, as an alternative
contrast
illustrate
add
cause and effect
introduce a new topic
Post Reading
READ FOR LANGUAGE FEATURES
08.
Summary
1. Is the author of the passage for or against organic farming How do you know
2. What other disadvantages of chemical farming did the author not list
3. How might the following items be problems and how important are they for organic farming
· natural animal waste used as fertiliser
· higher cost of producing food
· greater effort required to farm
4. What other disadvantages of organic farming can you think of
P57 3
1. Discuss these questions in groups.
Write an argumentative essay giving your opinion on chemical or organic farming.
Summary
Decide whether you support chemical farming or organic e up with three main points to support your opinion. Complete the outline below.
Topic sentence: In my opinion, ___ __ farming is preferable to ____ __ _ farming because _____
_______________________
Point 1: _________________________________________
Point 2: _________________________________________
Point 3: _________________________________________ Conclusion:______________________________________
organic
chemical
its many obvious advantages.
Organic farmers try to avoid using chemical pesticides and fertilizers to help crops grow.
Organic farmers focus on keeping their soil rich and free of disease through natural means.
Organic food is not only safe and healthy but also more nutritious and tastes better.
All in all, I’ m in favour of organic farming.
express your opinions:
In my eyes…
I’m opposed to…
I’d prefer… because…
From my point of view,…
What I firmly believe in is that…
make a conclusion:
In summary,
In a word,…
All in all,…
To sum up,…
Summary
Para.1
Para.2
Your opinion
Supporting point2
Para.3
Supporting point3
Supporting point1
Introduction
Body
Conclusion
Summary
Title
Details
Details
Details
chemical farming VS organic farming
Summary
In my opinion, organic farming is preferable to chemical farming because of the benefits to the environment and to people, and because organic food is more nutritious.
To begin with, chemical farming harms the environment. Since chemical pesticides are not found in nature, normal natural processes cannot get rid of them. Instead, the chemicals tend to accumulate in the soil and water, and are absorbed in the food chain, where they poison wildlife and domestic animals.
This affects us directly, because we end up eating plants, dairy products, eggs, and meat that have high levels of pesticides. Think about it: The purpose of the pesticides is to kill “pests”, that is, to kill insects. Something that can kill an insect probably is not healthy for a person to eat. While it may be true that the food we eat does not have enough pesticide in it to kill us immediately, over the years this pesticide may cause us health problems or give us diseases such as cancer.
Use your outline to write a short essay giving your opinion on the topic.
P57 3
Summary
Finally, organic food is generally more nutritious than food grown with man-made chemicals. If you remember a few years ago, there was the case of watermelons literally exploding in the fields because they had been given chemicals to make them grow faster. The reason why they exploded was that they contained too much water, because the farmers had used too many chemicals and the weather was unusually wet. As it turns out, such chemicals are commonly used in farming to grow larger crops more quickly. Do you really want to eat watered-down fruit and vegetables which have been rushed to market They cannot possibly taste as good as organic vegetables, nor can they be as nutritious.
In closing, I would like to suggest buying organic food. Yes, the price is a little higher, but the small price we pay extra will bring us huge rewards in the end.
Summary
Topic sentence
Point 1
Point 2
Point 3
Conclusion
Summary
09.
Assessment
Self-assessment and Peer-assessment sheet
checklist handwriting clear and clean
Structure is clear (general introduction, body and summary)
Opinion is clearly stated
Reason strongly supports the opinion
Evidence strongly supports the reason
is objective
is relevant (related to the reason )
is detailed
Assessment
10.
Assignment
据所提供的信息，以“Should We Help Strangers ”为题，写一篇短文。覆盖要点：
1.赞成的理由：1）帮助他人是美德（virtue）
2）帮助他人就是帮助自己...
2.反对的理由：1）怕陷入麻烦
2）怕被误解...
3.你的看法
Assignment
正反观点+理由
自己观点及理由
Recently our class had a heated discussion about
whether we should help strangers. Opinions are divided
on this issue.
Some people are in favor of it, saying that
helping others is a traditional virtue, which can bring love
and warmth to the people in need. Additionally,
helping others means helping us, because everyone
needs help. However,others have the opposite opinion.
They argue that helping others can sometimes bring us
trouble. What's worse, maybe we are misunderstood
by some people. 　
In my opinion, we should try our best to help others
when they are in need of help, but first we should avoid
getting into trouble．
引出要议论的话题
正反观点+理由
自己观点及理由
Assignment
Thank you
for your listening

展开更多......

收起↑