内容正文:
Unit 5
reading for writing
1
Lead-in
What organic means?
What organic means?
No chemical fertilisers or pesticides
No genetically modified organisms
2
CHEMICAL VERSUS ORGANIC FARMING
vs.
Which one is better? Which one do you support?
化学农业
有机农业
Lead-in
Part 1 (para 1&2)
The _______________ and _______________ of chemical farming.
Part 2 (para 3&4)
What organic farming is and how it keep the _______ rich.
Part 3 (para 5) conclusion
benefits
problems
soil
Read the text and choose its structure.
P1
P2
P3
P4
P5
P4
P3
P2
P1
P5
P4
P3
P2
P1
P5
A.
B.
C.
Read for structure
…
Read for content
Underline the signpost words or phases.
Signposts
Some words and phrases are used as signposts to help show a paragraph’s purpose. These usually come at the beginning or end of a paragraph.
however,
for example
in addition
in fact
as for
as an alternative
for example
for instance
for example
therefore
contrast
illustrate
add information
introduce a new topic
标识性语言
cause and effect
benefits
1. fight_____________
2. increase__________
chemical farming
problems
Para 1 the benefits and problems of chemical farming
How?
crop disease
production
However
Some scientists have found
______________________________________________
long-term use harm both the land and people's health
Read for content
Find out the argument in para1
论点
6
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
Read for content
7
P2For example
spraying pesticides on crops
stay in the ________and __________________________ for a long time
affects
the _______
the animals and humans who digest may __________
and ______________
bacteria & insects
harmful
helpful
have a cancer
prohibited
In addition
soil
underground water sources
crops
fall ill
damage
in turn
8
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.
9
Part 2 (para 3&4) What organic farming is and how it keep the soil rich.
supporting details
Benefit: keep the soil rich.
Read for content
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
11
Part 2 (para 4) the problem of organic farming
Can you think of the problem of organic farming? Did the author mention it?
Problem: can’t meet the high demand.
Read for content
远远不可能;远非
Draw an outline
advantages
disadvantages
organic
farming
fight crop disease
increase production
lower cost
crops look beautiful outside
......
healthy food
avoid damage to the environment or to people's health
......
harm the land
harm people’s health
harm the environment
crops are less in nutrition
less flavour
......
cannot meet the demand for food
more efforts and higher cost
smelly gases
......
chemical
farming
VS
Read for content
关于有机耕作和化学耕作,你们班举行了一场辩论。请你结合你
们的讨论结果,写一篇支持有机耕作的英语作文,内容包括:
1. 化学耕作的危害;
2. 有机耕作的优点及理由;
3. 作出总结。
注意:1.写作词数应为80左右;
2. 可以适当增加细节,以使行文连贯。
Practice
三维设计p122
一、合理布局,精心谋篇
Structure
The hot issue
P1
P2
The disadvantage(s)
The advantage(s)
P3
The writer's opinion
—— the arguments (论据)
&
supporting examples(例子)
—— the conlusion(结论)
—— the main idea
(论点)
正反对比式议论文结构
二、遣词造句,规范得体
1. 根据提示提出讨论的话题
最近我们讨论了要不要发展有机耕作。看法因人而异。
Recently organic
farming. .
we held a discussion about whether to develop
Opinions vary from person to person
2. 根据下面提示介绍反方观点及理由
①很明显,使用化肥有很多缺点。
It is obvious that using chemical fertilisers .
②最重要的是,留在作物内部的化学物质会导致癌症或其他疾病。
Above all, the chemicals staying inside the crops
.
③这些蔬菜长得很快,几乎没有什么营养。
The vegetables .
has many disadvantages
can lead to cancer
or other illnesses
grow so fast that they contain little nutrition
3. 根据下面提示介绍正方观点及理由
①随着人们越来越富裕,他们非常重视健康。
As people are becoming richer,
.
②有机农产品只需使用天然肥料,使蔬菜和水果既美味又有营养。
Organic produce simply uses natural fertilisers,
and nutritive.
they attach great importance to
health
making vegetables
and fruit tasty
③这种产品生长在干净的水中,从不使用农药,这对我们的健
康有益。
The produce grows in clean water and never uses pesticides,
.
which
is beneficial to our health
4. 根据提示介绍自己的观点
健康是第一财富,所以选择有机食品更明智。
Health is the first wealth, so it is wiser to choose organic food.
三、恰当衔接,自然过渡
使用一句名言,使发表个人观点过渡自然
As the old saying goes, health is the first wealth, so it is wiser to
choose organic food.
参考范文:
Recently we held a discussion about whether to develop organic
farming.Opinions vary from person to person.
It is obvious that using chemical fertilisers has many disadvantages.
Above all, the chemicals staying inside the crops can lead to cancer or other illnesses.Besides, the vegetables grow so fast that they contain little nutrition.However, as people are becoming richer, they attach great importance to health, and organic produce simply uses natural fertilisers, making vegetables and fruit tasty and nutritive.Moreover, the produce grows in clean water and never uses pesticides, which is beneficial to our health.
As the old saying goes, health is the first wealth, so it is wiser to
choose organic food.
Homework
Homework
Recite your essay
2020
vocal
220643.92
eng -
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