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高中英语人教版 (2019)选择性必修 第一册Unit 5 Working the Land优质课课件ppt
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这是一份高中英语人教版 (2019)选择性必修 第一册Unit 5 Working the Land优质课课件ppt，共27页。PPT课件主要包含了目 录，pictures，title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?
Spraying chemical pesticides n the crps.
Wearing a mask and hat.
2.What is the farmer wearing? Why?
It may harm peple’s health.
Chemical Versus Organic Farming
1. What is the text abut?Chemical farming Organic farming(definitin, benefit , prblem... )
2. What type f writing is it? A. Narratin B. Expsitin C. Argumentatin
What are the benefits and prblems f chemical farming?
chemical farming
Chemical farming is farming with _________ , especially ______________ and __________________.
Read fr details
______________________________________ (化学农药和人工肥料) have been in widespread use in farming since the middle f the 20th century. When they were first intrduced, many farmers welcmed them as a great way t ____________ _____________________________ (抵御作物病害、增加产量). Over time, hwever, what sme scientists have fund is that _______________________________________________________________ (长期使用它们有时会危害土地和人类健康).
Chemical pesticides and artificial fertilizers
disease and increase prductin
their lng-term use can smetimes harm bth the land and peple’s health
CHEMICAL VERSUS ORGANIC FARMING
Read fr useful expressins
Read fr writing useful expressins
Fr example, pesticides can damage the land by _____________________________________________________ (杀死有害细菌和昆虫的同时，也杀死有益的细菌和昆虫). In additin, these chemicals can stay in the sil and undergrund water surces fr a lng time. This affects the crps grwn n the land and, ________________________________________ (继而影响消化这些作物的人畜). Many peple wrry that these chemicals may _________________________________ (致病，甚至引发癌症). In fact, sme pesticides like DDT have been prhibited in mst cuntries because f the damage they cause t peple and the envirnment. As fr chemical fertilizers, crps grwn with them usually ____________________________ (生长过快而营养不足). They may lk beautiful n the utside, but inside there is usually mre water than ______________ (必需矿物质), and they ften ____________ (口感较差) as well.
killing nt nly harmful bacteria
in turn, the animals and humans wh digest them
make them ill and even cause
grw t fast t be rich in nutritin
essential minerals
have less flavr
and insects, but als helpful nes
fight crp diseases and increase prductin
bacteria and insects
damage they caused
grw t fast
Part 1: (Para 1-2)
The benefits and prblems f chemical farming.
chemical pesticides
artificial fertilizers
Organic farming is simply farming _________________.
_________________ (作为一种替代方法), sme farmers have switched t _____________ (有机耕作), and many custmers have turned t __________ (有机食品) when they shp at the lcal grcery. Organic farming is simply farming _________________ __________ (不使用任何化学品). Organic farmers fcus n _____________________________________________________ (通过天然的方法保持土壤肥沃，没有病害). Fr example, many rganic farmers use natural waste frm animals as fertilizer. This _____________________________________ (使农田土壤富含矿物质). It als keeps the air, sil, water, and crps free f chemicals.
As an alternative
rganic farming
withut using any
keeping their sil rich and free f disease thrugh natural means
makes the sil in their fields richer in minerals
Read fr writing 1 (useful expressins)
Organic farmers als use many ther methds t prduce rich sil. They ften _____________________________________________ (每年更换每块农田种植的作物种类). Fr instance, they may grw crn r wheat in a field ne year, and then grw beans there the next. Why different crps are grwn is because they put imprtant minerals back int the grund, making it ready fr the next batch f crps. Organic farmers als ______________________________________________ (种植土壤深度要求不同的多样化作物) t help keep it rich. Fr example, peanuts grw n the grund’s surface, but many ther vegetables put dwn deep rts. The gal f using different rganic farming methds is t _______________________________________________________________ (生产优质食物，同时避免损害环境和人类健康).
change the kind f crp grwn in each field every year
plant diverse crps that use different
grw gd fd while aviding damage t the envirnment r t peple’s health.
depths f sil
change the kind f crp
different depths
natural waste frm animals
withut chemicals
Sme peple wuld prefer t stp the use f man-made chemicals in agriculture entirely. What keeps them frm ding s is the fact that chemical farming ____________________________________________(满足了全世界对事物的高要求). Organic farming is nwhere near able t meet that need. Therefre, ___________________________________________________________________________________________________________________________________________________(想要找到一个合适的解决方案，使人类和环境尽可能保持健康，又让人们有足够的食物可吃，还有很长的路要走).
serves the high demand fr fd arund the wrld
suitable slutin that puts sufficient fd n the dinner table while keeping peple and the envirnment as healthy as pssible.
there is still a lng way t find a
Why man-made chemicals are still used in farming
Part 1:(Para 1-2)
Part 2:(Para 3-4)
What rganic farming is and rganic methds fr prducing rich sil.
There is still a lng way t g befre balancing sufficient fd and the health f peple and envirnment.
Read fr the main ideas and structures
Read fr discurse markers
Chemical pesticides and artificial fertilisers have been in widespread use in farming since the middle f the 20th century. When they were first intrduced, many farmers welcmed them as a great way t fight crp disease and increase prductin. Over time, ①_________, what sme scientists have fund is that their lng-term use can smetimes harm ③________ the land ______ peple’s health. ②____________, pesticides can damage the land by killing ③________ harmful bacteria and insects, ___________ helpful nes. ③___________, these chemicals can stay in the sil and undergrund water surces fr a lng time. This affects the crps grwn n the land and, in turn, the animals and humans wh digest them.
Many peple wrry that these chemicals may make them ill and even cause cancer. ②___________, sme pesticides like DDT have been prhibited in mst cuntries because f the damage they cause t peple and the envirnment. ⑤_______ chemical fertilisers, crps grwn with them usually grw t fast t be rich in nutritin. They may lk beautiful n the utside, ①_______ inside there is usually mre water than essential minerals, ③_______ they ften have less flavur _______. ⑤________________, sme farmers have switched t rganic farming, and many custmers have turned t rganic fd when they shp at the lcal grcery. Organic farming is simply farming withut using any chemicals.
Organic farmers fcus n keeping their sil rich and free f disease thrugh natural means. ②____________, many rganic farmers use natural waste frm animals as fertiliser. This makes the sil in their fields richer in minerals. It ③_________ keeps the air, sil, water, and crps free f chemicals. Organic farmers ③_________ use many ther methds t prduce rich sil. They ften change the kind f crp grwn in each field every year. ②___________, they may grw crn r wheat in a field ne year, and then grw beans there the next. ④_________________________ __________________ they put imprtant minerals back int the grund, making it ready fr the next batch f crps.
Fr instance
Why different crps are
grwn is because
Organic farmers ③________ plant diverse crps that use different depths f sil t help keep it rich. ②____________, peanuts grw n the grund’s surface, ①_________ many ther vegetables put dwn deep rts. The gal f using different rganic farming methds is t grw gd fd while aviding damage t the envirnment r t peple’s health. Sme peple wuld prefer t stp the use f man-made chemicals in agriculture entirely. What keeps them frm ding s is the fact that chemical farming serves the high demand fr fd arund the wrld. Organic farming is nwhere near able t meet that need. ④___________, there is still a lng way t find a suitable slutin that puts sufficient fd n the dinner table while keeping peple and the envirnment as healthy as pssible.
hwever, but, n the cntrary, instead, n ne hand … n the ther hand
fr example, fr instance, in fact, such as, take … fr example
bth…and…, nt nly…but als, in additin, and, als, as well, what’s mre, besides, furthermre, mrever, what’s wrse
why…is because…, therefre, fr this reasn, thus, cnsequently, as a ressult
as fr, as an alternative
discurse markers
cntrast对比
illustrate解释
cause and effect因果
intrduce a new tpic
近年来，媒体对“农业可持续发展” “食品安全”等问题作了一些报道，引发了许多讨论，到底哪种农业种植方式有利于农业可持续发展并解决食品安全问题呢？如某英语报记者对你进行采访，征求对此现象的看法，请用英语写一篇议论文，表达自己的观点，并说明理由。
Debating Game
Organic farming
Chemical farming
writing task
Supprting pint2
Supprting pint3
Supprting pint1
express yur pinins:In my pinin, far as I’m cncerned, Frm my pint f view,…I’m in favur ’m against/ ppsed t… I firmly believe that…
make a cnclusin:In shrt, a wrd,…All in all,…In cnclusin, sum up,…
Finish the draft
____________________________ In my eyes, rganic farming is preferrable t chemical farming, because it’s favrable t sustainable develpment f agriculture, beneficial t bth peple’s health and the envirnment and prvide mre nutritius fd. ___________, chemical farming _______________________. Chemical pesticides kill bth harmful and helpful nes, damaging the fd chain, eclgical balance and thus the envirnment. ____________, they tend t be hard t get rid f and accumulate in the sil and grundwater, which pisn and pllute the sil, water, rganism and micrrganism.
T start with
Make yur waste n lnger waste
harms the envirnment
______________, rganic farming benefits the sustainable develpment f agriculture, peple’s health and the envirnment by using natural means. Fr example, rganic farmers use ___________________ as fertilizers, and adpt ther ways t keep the sil rich, which can prvide gd-quality fd as well as prtect the eclgical balance. In additin, its higher price can bring abut _____________ f famers. In cnclusin, ___________________ that rganic farming is favrable. Thugh the price f rganic fd is higher because f its higher cst and greater required effrt, it can bring us great rewards in the end.
By cmparisn
I’m fully cnvinced
natural animal wastes
higher incme
_____________, the plluted water, plants and animals _____________________ as well. Thugh it may be true that the fd we eat desn’t have enugh pesticide in it t kill us immediately, ver the years, this pesticide may __________________________________________. In additin, the use f chemical fertilizers make the fd lk bright. _________, the fd tastes _______________________________________. Besides, it is less __________ in minerals.
What’s wrse
damage peple’s health
lead t health prblems and even cause cancer
less delicius than that grwn with chemicals
Which tmates d yu prefer? Why?
Chemical tmates
Organic tmates
1.What is the farmer ding in the picture?
Spraying chemical pesticides n the crps.
Wearing a mask and hat.
2.What is the farmer wearing? Why?
It may harm peple’s health.
Chemical Versus Organic Farming
1. What is the text abut?Chemical farming Organic farming(definitin, benefit , prblem... )
2. What type f writing is it? A. Narratin B. Expsitin C. Argumentatin
What are the benefits and prblems f chemical farming?
chemical farming
Chemical farming is farming with _________ , especially ______________ and __________________.
Read fr details
______________________________________ (化学农药和人工肥料) have been in widespread use in farming since the middle f the 20th century. When they were first intrduced, many farmers welcmed them as a great way t ____________ _____________________________ (抵御作物病害、增加产量). Over time, hwever, what sme scientists have fund is that _______________________________________________________________ (长期使用它们有时会危害土地和人类健康).
Chemical pesticides and artificial fertilizers
disease and increase prductin
their lng-term use can smetimes harm bth the land and peple’s health
CHEMICAL VERSUS ORGANIC FARMING
Read fr useful expressins
Read fr writing useful expressins
Fr example, pesticides can damage the land by _____________________________________________________ (杀死有害细菌和昆虫的同时，也杀死有益的细菌和昆虫). In additin, these chemicals can stay in the sil and undergrund water surces fr a lng time. This affects the crps grwn n the land and, ________________________________________ (继而影响消化这些作物的人畜). Many peple wrry that these chemicals may _________________________________ (致病，甚至引发癌症). In fact, sme pesticides like DDT have been prhibited in mst cuntries because f the damage they cause t peple and the envirnment. As fr chemical fertilizers, crps grwn with them usually ____________________________ (生长过快而营养不足). They may lk beautiful n the utside, but inside there is usually mre water than ______________ (必需矿物质), and they ften ____________ (口感较差) as well.
killing nt nly harmful bacteria
in turn, the animals and humans wh digest them
make them ill and even cause
grw t fast t be rich in nutritin
essential minerals
have less flavr
and insects, but als helpful nes
fight crp diseases and increase prductin
bacteria and insects
damage they caused
grw t fast
Part 1: (Para 1-2)
The benefits and prblems f chemical farming.
chemical pesticides
artificial fertilizers
Organic farming is simply farming _________________.
_________________ (作为一种替代方法), sme farmers have switched t _____________ (有机耕作), and many custmers have turned t __________ (有机食品) when they shp at the lcal grcery. Organic farming is simply farming _________________ __________ (不使用任何化学品). Organic farmers fcus n _____________________________________________________ (通过天然的方法保持土壤肥沃，没有病害). Fr example, many rganic farmers use natural waste frm animals as fertilizer. This _____________________________________ (使农田土壤富含矿物质). It als keeps the air, sil, water, and crps free f chemicals.
As an alternative
rganic farming
withut using any
keeping their sil rich and free f disease thrugh natural means
makes the sil in their fields richer in minerals
Read fr writing 1 (useful expressins)
Organic farmers als use many ther methds t prduce rich sil. They ften _____________________________________________ (每年更换每块农田种植的作物种类). Fr instance, they may grw crn r wheat in a field ne year, and then grw beans there the next. Why different crps are grwn is because they put imprtant minerals back int the grund, making it ready fr the next batch f crps. Organic farmers als ______________________________________________ (种植土壤深度要求不同的多样化作物) t help keep it rich. Fr example, peanuts grw n the grund’s surface, but many ther vegetables put dwn deep rts. The gal f using different rganic farming methds is t _______________________________________________________________ (生产优质食物，同时避免损害环境和人类健康).
change the kind f crp grwn in each field every year
plant diverse crps that use different
grw gd fd while aviding damage t the envirnment r t peple’s health.
depths f sil
change the kind f crp
different depths
natural waste frm animals
withut chemicals
Sme peple wuld prefer t stp the use f man-made chemicals in agriculture entirely. What keeps them frm ding s is the fact that chemical farming ____________________________________________(满足了全世界对事物的高要求). Organic farming is nwhere near able t meet that need. Therefre, ___________________________________________________________________________________________________________________________________________________(想要找到一个合适的解决方案，使人类和环境尽可能保持健康，又让人们有足够的食物可吃，还有很长的路要走).
serves the high demand fr fd arund the wrld
suitable slutin that puts sufficient fd n the dinner table while keeping peple and the envirnment as healthy as pssible.
there is still a lng way t find a
Why man-made chemicals are still used in farming
Part 1:(Para 1-2)
Part 2:(Para 3-4)
What rganic farming is and rganic methds fr prducing rich sil.
There is still a lng way t g befre balancing sufficient fd and the health f peple and envirnment.
Read fr the main ideas and structures
Read fr discurse markers
Chemical pesticides and artificial fertilisers have been in widespread use in farming since the middle f the 20th century. When they were first intrduced, many farmers welcmed them as a great way t fight crp disease and increase prductin. Over time, ①_________, what sme scientists have fund is that their lng-term use can smetimes harm ③________ the land ______ peple’s health. ②____________, pesticides can damage the land by killing ③________ harmful bacteria and insects, ___________ helpful nes. ③___________, these chemicals can stay in the sil and undergrund water surces fr a lng time. This affects the crps grwn n the land and, in turn, the animals and humans wh digest them.
Many peple wrry that these chemicals may make them ill and even cause cancer. ②___________, sme pesticides like DDT have been prhibited in mst cuntries because f the damage they cause t peple and the envirnment. ⑤_______ chemical fertilisers, crps grwn with them usually grw t fast t be rich in nutritin. They may lk beautiful n the utside, ①_______ inside there is usually mre water than essential minerals, ③_______ they ften have less flavur _______. ⑤________________, sme farmers have switched t rganic farming, and many custmers have turned t rganic fd when they shp at the lcal grcery. Organic farming is simply farming withut using any chemicals.
Organic farmers fcus n keeping their sil rich and free f disease thrugh natural means. ②____________, many rganic farmers use natural waste frm animals as fertiliser. This makes the sil in their fields richer in minerals. It ③_________ keeps the air, sil, water, and crps free f chemicals. Organic farmers ③_________ use many ther methds t prduce rich sil. They ften change the kind f crp grwn in each field every year. ②___________, they may grw crn r wheat in a field ne year, and then grw beans there the next. ④_________________________ __________________ they put imprtant minerals back int the grund, making it ready fr the next batch f crps.
Fr instance
Why different crps are
grwn is because
Organic farmers ③________ plant diverse crps that use different depths f sil t help keep it rich. ②____________, peanuts grw n the grund’s surface, ①_________ many ther vegetables put dwn deep rts. The gal f using different rganic farming methds is t grw gd fd while aviding damage t the envirnment r t peple’s health. Sme peple wuld prefer t stp the use f man-made chemicals in agriculture entirely. What keeps them frm ding s is the fact that chemical farming serves the high demand fr fd arund the wrld. Organic farming is nwhere near able t meet that need. ④___________, there is still a lng way t find a suitable slutin that puts sufficient fd n the dinner table while keeping peple and the envirnment as healthy as pssible.
hwever, but, n the cntrary, instead, n ne hand … n the ther hand
fr example, fr instance, in fact, such as, take … fr example
bth…and…, nt nly…but als, in additin, and, als, as well, what’s mre, besides, furthermre, mrever, what’s wrse
why…is because…, therefre, fr this reasn, thus, cnsequently, as a ressult
as fr, as an alternative
discurse markers
cntrast对比
illustrate解释
cause and effect因果
intrduce a new tpic
近年来，媒体对“农业可持续发展” “食品安全”等问题作了一些报道，引发了许多讨论，到底哪种农业种植方式有利于农业可持续发展并解决食品安全问题呢？如某英语报记者对你进行采访，征求对此现象的看法，请用英语写一篇议论文，表达自己的观点，并说明理由。
Debating Game
Organic farming
Chemical farming
writing task
Supprting pint2
Supprting pint3
Supprting pint1
express yur pinins:In my pinin, far as I’m cncerned, Frm my pint f view,…I’m in favur ’m against/ ppsed t… I firmly believe that…
make a cnclusin:In shrt, a wrd,…All in all,…In cnclusin, sum up,…
Finish the draft
____________________________ In my eyes, rganic farming is preferrable t chemical farming, because it’s favrable t sustainable develpment f agriculture, beneficial t bth peple’s health and the envirnment and prvide mre nutritius fd. ___________, chemical farming _______________________. Chemical pesticides kill bth harmful and helpful nes, damaging the fd chain, eclgical balance and thus the envirnment. ____________, they tend t be hard t get rid f and accumulate in the sil and grundwater, which pisn and pllute the sil, water, rganism and micrrganism.
T start with
Make yur waste n lnger waste
harms the envirnment
______________, rganic farming benefits the sustainable develpment f agriculture, peple’s health and the envirnment by using natural means. Fr example, rganic farmers use ___________________ as fertilizers, and adpt ther ways t keep the sil rich, which can prvide gd-quality fd as well as prtect the eclgical balance. In additin, its higher price can bring abut _____________ f famers. In cnclusin, ___________________ that rganic farming is favrable. Thugh the price f rganic fd is higher because f its higher cst and greater required effrt, it can bring us great rewards in the end.
By cmparisn
I’m fully cnvinced
natural animal wastes
higher incme
_____________, the plluted water, plants and animals _____________________ as well. Thugh it may be true that the fd we eat desn’t have enugh pesticide in it t kill us immediately, ver the years, this pesticide may __________________________________________. In additin, the use f chemical fertilizers make the fd lk bright. _________, the fd tastes _______________________________________. Besides, it is less __________ in minerals.
What’s wrse
damage peple’s health
lead t health prblems and even cause cancer
less delicius than that grwn with chemicals
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