人教版 (2019)选择性必修 第一册Unit 5 Working the Land完美版ppt课件

这是一份人教版 (2019)选择性必修 第一册Unit 5 Working the Land完美版ppt课件，共27页。PPT课件主要包含了Part 01，Lead in，Part 02，Reading，Part 03，Writing等内容，欢迎下载使用。
In this perid, we will:understand the differences between chemical and rganic farming and their advantages and disadvantages;learn abut the authr's writing techniques;learn abut the structure f an argumentative essay; write an essay t express ur views n chemical farming r rganic farming.
What can farmers d t make their crps grw better?
Fertilize the sil
rid the weed fthe sil
kill ff the pest
What can we put n the sil t stp crp disease and increase prductin?
It is the fertilizer.
chemical fertilizers
Learn sme new wrds.
chemical [ˈkemɪkl]化学的
bacteria [bækˈtɪəriə] 细菌
pest [pest]害虫
prductin 生产；制造
nutritin [nuˈtrɪʃn] 营养
mineral [ˈmɪnərəl]矿物质
Lk at the pht and discuss.
1.What is the farmer ding in the picture? 2.What is the farmer wearing? Why?
The farmer is spraying chemical pesticides n the crps.
The farmer is wearing a mask and hat. Because it may harm peple’s health.
Para1-2:( ) Para3:( ) Para5:( ) Para4:( )A What rganic farming is B Why man-made chamical are still used in farming C Organic methds fr prducing rich silD The prblems with chemical farming
Read fr structure
bacteria and insects
damage they use
natural waste frm animals
change the kind f crp
different depths
demand fr fd arund the wrld
Chemical farming Para. 1-2
1.Why did many farmers welcme the intrductin f chemical farming?(Para.1)2.What cncerns many peple abut the use f pesticides? (Para. 1)3.What is ne prblem with the use f chemical fertilisers?(Para. 2)
1.Why did many farmers welcme the intrductin f chemical farming?(Para. 1)
Many farmers welcmed them as a great way t fight crp disease and increase prductin.
2.What cncerns many peple abut the use f pesticides? (Para1)
Their lng-term use can smetimes harm bth the land and peple’s health.
Disadvantages
3.What is ne prblem with the use f chemical fertilisers?(Para. 2)
Crps grwn with them usually grw t fast t be rich in nutritin.
Organic farming Para. 3-4
4.Hw is rganic farming different frm chemical farming?(Para. 3)5.What are the rganic methds mentined in the text?(Para. 3&4)6. What's the gal f using rganic farming methds?（Para. 4）
4. Hw is rganic farming different frm chemical farming?(Para3)
Organic farming is simply farming withut using any chemicals.Organic farmers fcus n keeping their sil rich and free f disease thrugh natural means.
5.What are the rganic methds mentined in the text? (Para3&4)
1. Use natural waste frm animals as fertilizer.2. Change the kind f crp grwn in each field every year.3. Plant diverse crps that use different depth f sil t keep it rich.
6. What's the gal f using rganic farming methds?（Para. 4）
The gal f using different rganic farming methds is t grw gd fd while aviding damage t the envirnment r t peple's health.
fight crp diseaseincrease prductinlwer cstcrps lk beautiful utside
harm the land harm peple’s healthharm the envirnmentcrps are less in nutritin
gd fd aviding damage t the envirnment r t peple's health
cannt meet the demand fr fdmre effrts and higher cstsmelly gases
chemical farming
rganic farming
chemical farming VS rganic farming
Tpic sentence: In my pinin, ___farming is preferable t __ farming because______.Pint 1: ___________ Detail:_________________Pint 2: _____________ Detail:_________________Pint 3: ___________ Detail:__________________Cnclusin: __________________________________________
In my eyes… I’m ppsed t… I’d prefer… because… Frm my pint f view,…What I firmly believe in is that…
make a cnclusin
In summary,In a wrd,…All in all,…T sum up,…
In my pinin,rganic farming is preferable t chemical farming because it has sme utstanding advantages. The fllwing are my reasns.First f all, we shuld d everything in ur pwer t prtect ur delicate envirnment. Organic farming, with n chemical fertilizers, can keep the sil rich. As a result, it’s sure that rganic farming is gd fr the envirnment. With mre and mre peple diagnsed with cancer, we shuld pay mre attentin t ur fd. Organic farming prduces fd full f minerals and vitamins, which are nutritius. The better fd we eat, the less likely we are t develp disease. Lastly, all f us knw that fd prduced in the traditinal chemical way tastes bad. Hwever, rganic fd is mre delicius, which helps us have a gd appetite.In a wrd, I think rganic farming is better.