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！