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Farming or Organic Chemical Using language. What is the substance we put on the soil which makes...
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Transcript of Farming or Organic Chemical Using language. What is the substance we put on the soil which makes...
Farming
orOrganic
Chemical
Using language
What is the
substance we
put on the soil
which makes
crops grow?
It is fertilizer.
How many kinds of fertilizers do
farmers use?
There are two kinds. They are
chemical fertilizers and natural ones.
natural fertilizer
from animal waste
chemical fertilizer
Which kind do farmers use when
they are doing organic farming?
Do you know about organic
farming?
ORGANIC FARMING Organic farming is simply farming
without using any chemicals.
D.The disadvantagesdisadvantages of chemical fertilizers
B.The advantagesadvantages of Organic farming
C.Other methods to keep the soil fertile.
Skimming 4mins
A.Problems caused by chemical fertilizers.
Skim and match the main idea with each paragraph.
P1.
P2.
P3.
P4.
1. What problems can be caused by using chemical fert
ilizers?
2. Why are chemical fertilizers so popular in farming t
oday?
3. What is organic farming?
4. What are organic farming methods according to the
passage?
5. What is the main reason for using organic farming
methods?
Fast-reading 2m
Read the passage fast and answer the following questions
1. Damage the land by killing the helpful bacteria
and pests as well as the harmful ones
2. Lead to cancer or other illness.
3. Food grown with chemical fertilizers look
beautiful, but inside there is usually more water
than vitamins and minerals.
Q1: What problem can be caused by using chemical fertilizers?
Detail comprehending
Q2: But why are chemical fertilizers so popular in farming today?
They are a great way to stop crop disease and increase production.
Q3: What is organic farming?
Organic farming means growing crops without
using any chemicals.
Q4:What are organic farming methods
according to the passage?
◆Using _______ waste from animals as fertilizer◆Changing ______________ in each field every few years
◆ Using _____________ of soil to plant crops ◆ Planting _____ between cropsgrass
natural
the kind of crop
different levels
Q4: What is the main reason for using
organic farming methods?
The main reason for using organic
farming methods is to grow good food
and to avoid damaging the environment
or people’s health.
True or False
1. It is not harmful to use chemical fertilizers for a long time.
2. Chemicals can kill useful bacteria.3. Vegetables growing too fast with chemical
fertilizers may be of no good quality.4. Organic farming can solve all the problem
s of pollution.5. Organic farming can enrich the soil in the
long run.
T
T
F
T
F
Words preview
chemical
production
bacteria
pest
nutrition
mineral
adj. 化学的;关于化学的n. 生产;制造n. 细菌n. 害虫;害兽;害鸟n. 营养;滋养;食物n. 矿物;矿石
discovery
focus
soil
reduce
root
n. 发现;发觉n. 焦点;中心点vt. 集中;聚焦n. 土壤vt. 减少;减缩n. 根;根源
Words preview
skim
underline
summary
comment
vt. 浏览;略读vt. 画底线标出;强调n. 总结;摘要;概要n. 评论;议论vi.& vt. 表达意见 ;
做出评论
Words preview
Expressions preview
build up
lead to
focus on
keep… free
from/of
逐渐增强 ; 建立 ; 开发导致 ; 造成 ( 后果 )
集中 ( 注意力,精力等 ) 于使…免受 ( 影响,伤害等 ) ;使…不含 ( 有害物 )
Thank you!