资源简介

(共37张PPT)
Unit 5
Reading for Writing
In this class we will:
To know the advantages and disadvantages of both chemical farming and organic farming.
To master some transitional words or phrases in the text.
To express opinions on chemical farming and organic farming, and write an argumentative essay .
Learning Objectives
Imagine now you are a farmer who has a lot of fields. How do you grow crops
plough /pla /
sow
fertilize the soil
Lead-in: Free Talk
Lead-in: Free Talk
1.What does the farmer do in the field
Spray pesticides.
2.Why does he do that
To fight crop disease and increase production.
3.What else may farmer do
to make crops grow
artificial fertilisers
natural
fertilisers
Use fertilisers.
What kind of fertilizers do farmers use
chemical fertilizers
化学肥料
natural fertilizers
天然肥料
Chemical Versus Organic Farming
VS
Have students read the article title together
Have
/ v s s/
prep.(比较两种不同想法、选择等)与…相对，与…相比;(表示两队或双方对阵)对，诉，对抗
What kind of farming are they doing
Organic farming
Chemical farming
which one is better
Pre-reading
Prediction
Predict by analyzing the title and observing the pictures.
1. What is the farmer in the picture doing
2.What is the farmer wearing Why
Spraying chemical pesticides on the crops.
A mask and a hat. Maybe the chemical pesticides are harmful to health.
4.What type of writing is this passage
A. Biography B. Exposition
C. Argumentation D. Narration
Pre-reading
Prediction
3.Can you predict the main idea of this passage
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
A. What organic farming is
B. Why man-made chemical are still used in farming
C. Organic methods for producing rich soil
D. The problems with chemical farming
Para. 1-2
Para. 3
Para. 4
Para. 5
Read the text and then match the main idea with each paragraph.
While-reading
Fast reading
1. Why did many farmers welcome the introduction of chemical farming
Many farmers welcomed them as a great way to stop crop disease and increase production.
Para.1
While-reading
Detailed reading
2. What concerns many people about the use of pesticides
Their long-term use can sometimes harm both the land and people's health:
(1)kill helpful bacteria and insects
(2)stay in the soil and underground water sources for a long time
Para.2
While-reading
Detailed reading
3. What is one problem with the use of chemical fertilizers
Crops grown with them usually grow too fast to be rich in nutrition:
Inside there is usually more water than essential minerals;
They often have less flavour as well.
Para.2
While-reading
Detailed reading
para. main idea detail
1-2 The problem with chemical farming ·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 they cause to people and environment
grow too fast
nutrition
Complete the sentences in the table.
P56
4.What are the advantages of organic farming
The farmers focus on ___________________ and free of disease through ______________ and keep the air, soil, water and crops _________chemicals.
keeping their soil rich
natural means
free of
natural waste from animals as fertilizer
Para.3
While-reading
Detailed reading
para. main idea detail
3 What organic farming is ·Many organic farmers use _________________________ as fertiliser.
Complete the sentences in the table.
P56
natural waste from animals
5. Why do organic farmers change the kind of crop grown in a field every year
Because they put important minerals back into the ground, making it ready for the next batch of crops.
Para.4
While-reading
Detailed reading
6. What is the author’s attitude towards organic farming
A. ambiguous B. unfavourable
C. objective D. supportive
模棱两可的
Para.5
While-reading
Detailed reading
不支持的
para. main idea detail
4 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.
5 Why man-made chemicals are still used in farming ·Organic farming is now nowhere near able to meet high__________________.
Complete the sentences in the table.
P56
change the kind of crop
every year
different depths
demand for food
chemical
farming
organic
farming
advantages
disadvantages
fight crop disease
increase production
lower cost
crops look beautiful outside
......
good food
avoiding damage to the environment or to people's health......
harm the land
harm people’s health
harm the environment
crops are less in nutrition
......
cannot meet the demand for food
more efforts and higher cost
smelly gases
......
chemical farming VS organic farming
Structure
Use your own words to explain the whole text with the following mindmap.
Chemical Farming
Organic Farming
what
benefits
problems
what
benefits
problems
Author’s Thinking
There is still a long way to find a suitable solution that……
Farming with chemicals, especially chemical pesticides and artificial fertilizers
a great way to fight crop diseases and increase production.
Harm both the land and people’s health.
Food: less nutrition, less essential minerals, and less flavour.
Farming without chemicals
makes the soil richer in minerals
keeps the air, soil, water and crops free of chemicals,
avoid damage to the environment or to people’s health.
Organic farming is nowhere near able to meet the high demand for food
around the world.
Para1:however
Para2:for example, not only...but also, in addition, in fact, as for, but, as well
Para3:as an alternative, for example, also
Para4:also, for instance, for example, but
Para5:therefore
Read for writing---Find the Transitional Words(过渡词/连接词)
contrast
对比
illustrate
解释
add
补充
cause and effect
因果
introduce a new topic
引入新话题
Task: write an argumentative essay
Part.1
Part.2
An argumentative essay
Your opinion
Supporting point2
Part.3
Supporting point3
Supporting point1
Introduction
Body
Conclusion
Summary
Title
Details
Details
Details
Rules:
Please write an outline first including your clear viewpoint and three brief arguments.
Writing Time
Organic farming
Chemical farming
express your opinions:
In my opinion, ....
As far as I’m concerned,....
From my point of view,…
I’m in favour of....
I’m against/ opposed to…
I firmly believe that…
make a conclusion:
In short, ....
In a word,…
All in all,…
In conclusion,....
To sum up,…
signpost words function
for example, for instance... 举例说明
however, but, nevertheless, yet... 转折，对比
in addition, additionally, not only..but also, as well, plus, moreover, what's more... 并列，递进
as for, in terms of, when it comes to... 转换新话题
in turn, thus, then, next... 逻辑顺序
Homework
(1) Write a complete argumentative essay based on the outline you have written in the class. (no less than 150 words)
(2) Review the passage focusing on its structure, content, words and sentences used in the transition, continuation and contrast.
近年来，媒体对“农业可持续发展” “食品安全”等问题作了一些报道，引发了许多讨论，化学种植和有机种植哪种有利于农业可持续发展并解决食品安全问题呢？请用英语写一篇议论文，表达自己的观点，并说明理由。
Writing Task
Organic farming versus chemical farming
In my opinion, organic farming is preferable to chemical farming because it’s beneficial to both people’s health and the environment, and favorable to sustainable development of agriculture.
Sample
To begin with, chemical farming harms the environment. For instance, the chemicals tend to accumulate in the soil and water, and are absorbed in the food chain, where they poison wildlife and domestic animals.What’ s more, there is no doubt that the chemicals staying inside the crops can cause us health problems or give us diseases such us cancer. Finally, organic produce simply uses natural fertilizers, making vegetables and fruit tasty and nutritious.
Sample
In summary, I’m convinced that organic food will be more and more popular. Although the price is a little higher, but the small price we pay extra will bring us huge rewards in the future.
Sample
辩论报告(an argumentative essay)
[文体特征]
1．文章短小精悍，语言精练，准确易懂；
2．时态常用一般现在时。
辩论报告属于应用文文体之一，同时又具有议论文的特点，是对某个话题的辩论。
该类文章一般分为三部分：
第一部分：开门见山，说明自己的看法或观点；
第二部分：列举支持方的观点及其理由；或列举反对方的观点及其理由；
第三部分：得出结论或给出自己的观点。
Assignment
[常用表达]
1. We had a discussion about whether students should be allowed to...
2. I'm writing to tell you about a discussion we have had about whether students should be allowed to...
3. Opinions are divided on this issue./Opinions are mainly divided into two groups.
4. Different people, however, have different opinions on this matter.
5. People who are against the idea think that...
6. Sixty percent of the students think it necessary to..., but forty percent of the students don't think so.
[实战演练]
最近你所在的英语俱乐部就你市是否应该出台限购私家车的政策进行了讨论。请根据表格内容写一篇英语短文介绍讨论情况并发表自己的看法。
赞成的理由 1. 节约能源,减少污染
2. 缓解交通拥挤
反对的理由 1. 购买汽车是人们的权利
2. 给人们的出行带来不便
你的看法 ……
Sample writing
Recently our English Club has had a debate about whether there should be policies on controlling the purchase of private cars in our city. Opinions are mainly divided into two groups.
　 Some students support it. They say nowadays a large number of people own private cars, which has caused many problems, such as air pollution, traffic jams and an increase of energy use. There is no doubt that controlling the number of private cars will help solve these problems.
Sample writing
However, others think differently. They argue that they have the right to buy cars. What's more, if they don't have their own cars, it isn't convenient for them to go out, whether for work or travel.
　 As for me, I agree with the former. In fact, we can use other forms of transport like buses, subways and bicycles.　
Thank You

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