高中英语人教版 (2019)必修 第一册Unit 5 Languages around the world课文ppt课件

这是一份高中英语人教版 (2019)必修 第一册Unit 5 Languages around the world课文ppt课件，共22页。PPT课件主要包含了Warming-up，Beginning 等内容，欢迎下载使用。
Which tmates d yu prefer? Why?
Chemical tmates
Organic tmates
1.What is the farmer ding in the picture? Why? 2.What is the farmer wearing? Why?
Spraying chemical pesticides n the crps.
Wearing a mask and hat.It may harm peple’s health.
1. What is chemical farming? What is rganic farming?
Chemical Versus Organic Farming
Read fr title and type
Organic farming is simply farming _________________.
Chemical farming is farming with _________ , especially ___________________ and __________________.
2. What type f writing is this passage? A. Descriptin B. Expsitin C. Argumentatin D. Narratin
artificial fertilizers
withut chemicals
Match the main ideas (A-D) belw with the paragraphs. Then cmplete the sentences in the table.
A. What rganic farming isB. Why man-made chemicals are still used in farming C. Organic methds fr prducing rich silD. The prblems with chemical farming
bacteria and insects
damage they cause
natural waste frm animals
change the kind f crp
different depths
demand fr fd arund the wrld
The _______ and _________ f chemical farming.
Part 1:(Para 1&2)
What rganic farming is and __________________.
hw it keep the sil rich
Part 2:(Para 3&4)
Part 3:(Para 5)
The _______and __________f rganic farming.
Evaluate chemical farming and rganic farming
Find mre abut the 2 kinds f farming:
1. Why did many farmers welcme the intrductin f chemical farming?2. What are the prblems with chemical farming?3. What are the benefits f rganic farming?4. What is the prblem f rganic farming?
Many farmers welcmed them as a great way t fight crp diseases and increase prductin.
Harm bth the land and peple’s health.Fd: less nutritin, less essential minerals, and less flavur.
It makes the sil richer in minerals and als keeps the air, sil, water and crps free f chemicals, aiming t avid damage t the envirnment r t peple’s health.
Organic farming is nwhere near able t meet the high demand fr fd arund the wrld.
Useful sentence patterns
Express yur pinins:In my pinin, ____farming is preferable t _____ farming. The reasns are as fllws. T begin with, _________. In additin, __________. What’s mre, _________. Last but nt least, ________. All in all, I’m fully cnvinced that ______________.
Read fr writing——Expressins
Use yur wn wrds t explain the whle text with the fllwing mindmap.
Chemical Farming
Organic Farming
Authr’s Thinking
There is still a lng way t find a suitable slutin that……
Farming with chemicals, especially chemical pesticides and artificial fertilizers
a great way t fight crp diseases and increase prductin.
Farming withut chemicals
makes the sil richer in minerals keeps the air, sil, water and crps free f chemicals, avid damage t the envirnment r t peple’s health.
Organic farming is nwhere near able t meet the high demand fr fd arund the wrld.
Para1:hweverPara2:fr example, nt als, in additin, in fact, as fr, but, as wellPara3:as an alternative, fr example, alsPara4:als, fr instance, fr example, butPara5:therefre
Read fr writing---Find the Transitinal Wrds(过渡词/连接词)
cntrast对比
illustrate解释
cause and effect因果
intrduce a new tpic引入新话题
What is the authr’s attitude twards rganic farming? A.Negative B. ambiguus C. bjective D. supprtive
What is yur pinin n chemical r rganic farming?
Write an anrgumentative passage in the next perid.
Rules:1. Give at least three arguments(论据). (4mins) 2. Tw students cmes t state yur pinins. Then, ther students begin t make cmplements.
Debating Game
Organic farmingGrup 4-6
Chemical farmingGrup 1-3
Write an essay shwing whether yu supprt chemical farming r rganic farming. Cmplete the utline first. (P57)
Writing (8mins)
Ex.: T begin with, rganic farming is ec-friendly. Fr instance, rganic farmers use natural waste frm animals as fertilizer, which is nt nly harmless t the envirnment, but als make sil richer in minerals.
Supprting details: examples, benefits, reasns，
Write an argumentative essay giving yur pinin n chemical r rganic farming.
While-writing
Tpic sentence: In my pinin, ________farming is preferablet _______ farming because____________.Pint 1: ________________ Detail:_________________Pint 2: ________________ Detail:_________________Pint 3: ________________ Detail:__________________Cnclusin: __________________________________________
An argumentative essay
Tpic sentence: In my pinin, ________farming is preferable t _______ farming because____________.
Pint 1:___________________ (Detail)___________________
Organic farmers als use many ther methds t prduce rich sil. They ften change the kind f crp grwn in each field every year. Fr instance, they may grw crn r wheat in a fieldne year, and then grw beans there the Fr example, peanuts grw n the grund's surface, but many ther vegetables put dwn deep rts.
Argument 1 ( Tpic sentence)
Argument 1 (Tpic sentence) +detail: Pint 1: T begin with, ______________.(Detail)_______.Pint 2: What’s mre, _______________.(Detail)_______.Pint 3: Finally,_______________.(Detail)_______.
Cnclusin: In clsing, I am fully cnvinced that__________________.
Write an argumentative essay giving yur pinin n chemical r rganic farming.Attentin: 1. the whle structure f yur essay2. using what yu learnt t yur essay3. beautiful handwriting.
While-writing-15mins
Exchange yur draft with a partner.
 Des the writer d a gd jb f expressing his/her pinin? Des each paragraph have ne main idea? Des each paragraph have at least ne detail t supprt its main idea? Des the writer sequence the pints in a lgical rder? Des the writer d a gd jb persuading yu t accept his/her pinin?
1. Use this checklist t help yu review yur partner's draft.
2. Take yur draft back and revise it.
Share yur essay with the rest f the class.
Pst-writing
Tpic sentence
Advantages f Organic Farming Cmpared t chemical farming, rganic farming enjys its verwhelming superirity. The reasns are as fllws. Firstly, rganic fd is healthier and safer as in rganic farming, pisnus chemicals like pesticides are frbidden frm being used n crps. Furthermre, rganic farming is envirnmentally friendly. Fr instance, rganic farmers use natural waste frm animals as fertilizer, which is harmless t the envirnment. Lastly, farmers can increase their incme thrugh rganic farming. As peple tend t pursue a green life, they are mre likely t buy rganic fruit and vegetables despite the high prices. With incmparable advantages, therefre, rganic farming is expected t benefit mre peple in the future.