1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
人教2003课标版《Using LanguageⅠ》新课标PPT课件优质课下载
What is organic farming?
What is the main reason for using
organic farming methods?
3 What is organic farming?
4 What is the main reason for using organic farming methods?
1 Why are chemical fertilizers so popular in farming today?
2 What problems can be caused by using chemical fertilizers?
Task 1: Read Para.1 and answer the following questions.
1 Why are chemical fertilizers so popular in
farming today?
2 Do you think it is really a great way?
They are a great way to stop crop disease and increase production.
No!
Task2:Read Para. 2 and fill in the form.
The disadvantages of Chemical Farming
How
Damaging the _______:
Killing the helpful
________________
2. Damaging
_____________:
1. Many chemicals in the
food supply can lead to
______or______________.
2. Food grows too fast to