Book4 Unit 2 CHEMICAL OR ORGANIC FARMING 学案 (2 )
- 格式：doc
- 大小：35.00 KB
- 文档页数：2
Everything is possible ! 第 1 页 共 4页 Everything is possible!
第 2页 共4页
.
.
.
.
学
.
.
.
.
.
案
.
.
.
.
.
装
.
.
.
.
.
订
.
.
.
.
.
线
.
.
.
Book4 Unit 2 CHEMICAL OR ORGANIC FARMING? 学案 (2 )
姓名： 班级： 组号：
【学习目标】
1. To know this part and master the useful new words and phrases;
2. To get the main idea of this passage;
3. To master reading skills.
4. 【课前预复习】
Ⅰ、知识达标
1
阅读Page14,Paragraph3__4,完成下列各题：
1.
turn to organic farming. focus on keeping their soil rich and
free of disease. grow strong and healthy.
prefer using natural waste keeps the air, soil, water
and crops free from chemicals.
keep the soil fertile. put important minerals back into the
soil, making it ready for crops
prefer planting grass between crops to prevent
wind or water from carrying away the soil,
avoid damaging the environment or people's health.
2.
A healthy soil reduces disease and helps crops grow strong and healthy.
Crops such as peas or soybeans put important minerals back into the soil, making it
ready for crops such as wheat or corn that need rich and fertile soil.
Organic farmers also plant crops to use different levels of soil, for example, planting
peanuts that use the ground's surface followed by vegetables that put down deep roots.
These many different organic farming methods have the same goal: to grow good food
and avoid damaging the environment or people's health.
Ⅱ、我的疑问
请同学们将预习中未能解决的问题和有疑惑的问题写下来，等待课堂上与教师和同学探究解
决。
Everything is possible!第 3 页 共 4页 Everything is possible !
第 4页 共4页
【小组探究】
一 请阅读课本第14页Paragraph3__4，完成下列的题。
ⅠRead the text quickly and judge whether the statements are true or false.
1. Long-term use of these fertilizers can’t cause damage to the land. ( )
2. Chemicals get inside the crops and can’t be washed off. ( )
3. Fruit, vegetables and other food grown with chemical grow so fast that they are
full of nutrition. ( )
4. Organic farming is simply farming without using any chemicals. ( )
5. Organic farmers seldom change the kind of crop in each field for years. ( )
ⅡRead the passage carefully and finish the chart.
The disadvantage of chemical farming
1. Chemicals damage the land by ______________________________________
______________________________________________________________________
2. The chemicals in the food supply_________in people’s body.
3. Many chemicals can _________cancer.
The advantage of organic farming
1. Organic farmers _________keeping the soil rich and free of disease.
2. Organic farming keeps the air,soil and crops_________chemicals.
3. They change ___________________________________________________.
4. Some organic farmers prefer_________________________________________
【当堂检测】
Chemical or organic farming
With these （发现）, some farmers and many customers are beginning
to turn organic farming. Organic farming is simply farming using any
chemicals. They （注重） keeping their soil rich and free disease.
A healthy soil r disease and helps crops grow strong and healthy. Organic
farmers, , often prefer (use) natural waste
animals as fertilizer. Organic farmers also plant crops to use different levels of
soil, for example, (plant) peanuts that use the ground's
surface (follow) by vegetables that put down deep roots. These many
different organic farming methods have the same goal: (grow) good
food and avoid (damage) the environment or people's health.
【我的反思】
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
