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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教案配套课件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教案配套课件ppt，共40页。PPT课件主要包含了PART 01，wheat ，F Food ，PART 02，Exposition，PART 03等内容，欢迎下载使用。
Listening and speaking
In pairs, discuss what yu can see in the phts and hw yu think each pht relates t wrld hunger.
What can yu see in the picture?
What caused the phenmena?
It represents the idea f war. Hunger ften cmes with war, as ften peple cannt farm, r they cannt wrk t earn mney t buy fd. And, even if they had mney t buy fd, the markets might be empty r clsed.
It represents the idea f drught. Either a river r a lake bed has been expsed by receding waters, leaving behind cracked sil. A child is puring water nt the grund. When there is drught, crps cannt grw and animals may die.
It represents famine [ˈfæmɪn]（饥荒）.The child in the pht is a victim f famine, which is why his/her arm and hand are s thin. Famine is when the crps d nt grw and there is nt enugh fd fr everyne t eat. While famine can be caused by drught, sme f the wrst famines in wrld histry had ther surces, such as insects r diseases that destryed the crps, r weather that was either t ht r t cl fr the crps t grw prperly.
Latins: Let there be bread
1.D yu knw what des FAO stand fr?
A: Agriculture
O: Organizatin
2.Let’s learn mre frm the vide.
The wrld rganizatin devtes t the hunger prblem.
FAO seeks t increase agricultural prductivity, reduce pverty, make fd distributin mre efficient, and wrk t prevent hunger-causing disasters frm ccurring r t mitigate their impact when they d ccur by strengthening cmmunities and ecnmies, with a fcus n bringing peace t areas where cnflict r war is n the hrizn.
3.Smething abut Wrld Fd Day.
Wrld Fd Day(WFD) was created by the FAO in 1979.It is celebrated in mre than 150 cuntries,raising awareness and knwledge f the prblems and causes behind wrld hunger and pverty.
1.First listen and chse the crrect answer.
1. Accrding t the hst, what will David Bnd talk abut tday? A. An explanatin abut FAO. B. His career and experience. C. Wrld hunger.2. What des FAO think abut nutritius fd? A. Abut 11% f the ppulatin can affrd nutritius fd. B. Peple can’t affrd r dn’t have access t nutritius fd. C.The rich have the right t nutritius fd.3. What des FAO d t alleviate wrld hunger? A. It makes effrts t reduce climate change t alleviate wrld hunger. B. It runs a prject called Climate Smart Agriculture t develp sustainable agriculture. C. It creates hybrid rice which can greatly imprve rice prductin.4. What can we individuals d t alleviate wrld hunger in daily life? A. We can eat hybrid rice in ur daily life. B. We can take part in the prject named Climate Smart Agriculture. C. We can buy fd that supprts the envirnment and never waste fd.
2.Secnd listen t cmplete the blanks.
1. What is the FAO? What is its missin? The FAO stands fr and Organizatin. Its aim is t eliminate ____________. 2. What can seriusly affect crp prductin? Drughts, and can seriusly affect crp prductin.3. What des the FAO think abut nutritius fd? The FAO believes everyne shuld have the right___________________.4. What is the FAO ding t alleviate wrld hunger? The FAO runs called Climate-Smart Agriculture, which helps cuntries t des the FAO suggest cuntries d? Every cuntry needs t fcus n making new ______________ in agriculture t, which can ften ________the whle wrld.
achievements
Agriculture
wrld hunger
climate change
t get healthy fd
develp sustainable agriculture
3.Listen again and identify hw the speaker supprts his facts. Match the supprting evidence with the facts.
Identify supprting evidenceWhen peple present imprtant facts, they usually give sme evidence t supprt their claims. The evidence is usually mentined at the start f a sentence. Listen ut fr key wrds like reprt, research, studies, figures, findings, etc.
1. Accrding t ur latest figures, …2. There is strng evidence t suggest that …3. Our research indicates that …
A. wars can heavily affect fd prductin and transprtatin.B. (wrld hunger) stands at arund 11% f the wrld’s ppulatin. C. many peple just can’t affrd t eat well.
1.Wrk in pairs. Discuss the fllwing questins and then share yur answers in class. Use a table like the ne belw t help yu rganise yur thughts.
1. What are all the pssible causes f wrld hunger that yu can think f? 2. What can peple and cuntries d t help alleviate these causes?
invent new frms f agriculture that d nt rely s much n water, and drught-resistant crps.
build dams and levees (a lw wall built at the side f a river t prevent it frm flding)
ecnmic develpment and prgrammes that give peple mre pprtunities
internatinal negtiatin
Never waste fd; Buy fd that supprts the envirnment; Educate peple arund t becme aware f the prblem and take actin t help.
2.Wrk in grups t brainstrm ideas fr sme schl activities that celebrate Wrld Fd Day. Use the expressins t help yu cmmunicate with yur grup members.
I’d rather … In my eyes ... In my pinin ... Withut a dubt ... The advantages are … I have a feeling that ’s a pity that … I’d prefer … because … My impressin is that think/guess/believe ... Frm my pint f view, ... My view/pinin/belief is that ...
Sharing yur pinins
Sample Dialgue
A: S what shall we d fr Wrld Fd Day?B: In my pinin, a pster cntest wuld be a perfect way t celebrate it.C: That’s OK, I guess, but my impressin is that everyne is tired f making psters.A: It’s a pity, but I think yu’re right. We already have psters all ver campus, and s the message might get lst. We need t make a strnger impact.C: In my eyes, we shuld have a schl debate n hw best t slve the prblem f wrld hunger.B: The advantages are that it wuld help get peple invlved and interested. A: But I think the prblem with a debate is that it desn’t really hit hme. Peple will learn mre abut wrld hunger, that’s true. I have a feeling that very few peple will actually be mtivated t d anything abut wrld hunger thrugh a debate.B: My view is that we shuld have a Wrld Fd Day Sunday Dinner. C: What is that?B: Well, everyne buys tickets t eat a dinner, and the price f the tickets is the same. But when they buy the tickets they have t draw their tickets at randm. Sme peple get tickets t eat like a pr persn — just a small bwl f rice. Others get tickets t eat like an average persn — ndles with meat, perhaps. Finally, thers get tickets t eat like a king — rast duck and all srts f sweets.C: Withut dubt, that is the craziest thing I’ve ever heard.B: N, n. I dn’t think it’s crazy at all. A: What’s the purpse f such a meal? B: In real life, hw well a persn eats is really just a matter f luck. If yu are brn in a wealthy cuntry, yu prbably eat well and might even be fat! But if yu are brn in a pr cuntry, yu might just starve!A: I believe that yu might be nt smething. But wh’s ging t ck the fd?
Reading and Writing
chemical fertilizers
natural fertilizers
I’d like t chse Chemical farming, because it can bst the yield f agricultural prducts in this way.
But I want t grw plants withut using chemical fertilisers and pesticides.
Wh d yu supprt?Man r Lady?
Please write a shrt passage t share yur pinins abut it.
Chemical farming
Organic farming
Chemical Versus Organic Farming
A. Why are man-made chemicals still used in farming? B. What are the prblems with chemical farming?C. What is rganic farming ?D. What are the rganic methds fr prducing rich sil?
Para 1-2Para 3Para 4Para 5
Please skim the text t match the questins with the paragraphs.
Nte: The tpic sentence f each paragraph and the signpsts will be f help.
sme pesticides like DDT have been prhibited in mst cuntries because f the damage they cause t peple and the envirnment.
Detailed reading
increase prductin
fight crp disease
what sme scientists have fund is that their lng-term use can smetimes harm bth the land and peple’s health.
damage the land
these chemicals can stay in the sil and undergrund water surces fr a lng time.
animals and humans
nutritin/essential minerals
less flavur
switch t rganic farming
natural waste
change the crps
crn r wheat
peanut grw n the grund’s surface, but many ther vegetables put dwn deep rts
While rganic farming is nwhere near able t .
Why are man-made chemicals still used? Chemical farming can meet ______________ fr fd arund the wrld.
the high demand
Chemical farming guarantees(确保) a ______ yield/ utput.
Mre reasns
requires a ______ cst.
needs ____ effrt.
Detailed reading (Para.5)
Therefre, there is still a lng way t find a suitable slutin that puts sufficient fd while keeping peple and the envirnment as healthy as pssible.
meet that need
The authr uses “Benefits — Prblems — Slutins” t intrduce chemical farming and rganic farming.
fight crp disease and increase prductin
smetimes harm bth the land and peple’s health
make the sil rich; keep the air, sil, water and crps free f chemicals
cannt meet the need
still a lng way t find a suitable slutin
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
illustrate
cause and effect
intrduce a new tpic
Decisin-making
They are expecting yur suggestins!
me up with three main pints t supprt yur pinin, and then add at least ne detail t supprt each main pint.
Tpic sentence: In my pinin, ___farming is preferablet __ farming because______.Pint 1: ________________ Detail:_________________Pint 2: ________________ Detail:_________________Pint 3: ________________ Detail:__________________Cnclusin: __________________________________________
chemical farming VS rganic farming
Evaluate chemical farming and rganic farming with yur grup members.
Organicfarming
Put the individual wrk tgether t make a cmplete passage.
Writing Task
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
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
Language Pints
______________________________________ (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
_________________ (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
Listening and speaking
In pairs, discuss what yu can see in the phts and hw yu think each pht relates t wrld hunger.
What can yu see in the picture?
What caused the phenmena?
It represents the idea f war. Hunger ften cmes with war, as ften peple cannt farm, r they cannt wrk t earn mney t buy fd. And, even if they had mney t buy fd, the markets might be empty r clsed.
It represents the idea f drught. Either a river r a lake bed has been expsed by receding waters, leaving behind cracked sil. A child is puring water nt the grund. When there is drught, crps cannt grw and animals may die.
It represents famine [ˈfæmɪn]（饥荒）.The child in the pht is a victim f famine, which is why his/her arm and hand are s thin. Famine is when the crps d nt grw and there is nt enugh fd fr everyne t eat. While famine can be caused by drught, sme f the wrst famines in wrld histry had ther surces, such as insects r diseases that destryed the crps, r weather that was either t ht r t cl fr the crps t grw prperly.
Latins: Let there be bread
1.D yu knw what des FAO stand fr?
A: Agriculture
O: Organizatin
2.Let’s learn mre frm the vide.
The wrld rganizatin devtes t the hunger prblem.
FAO seeks t increase agricultural prductivity, reduce pverty, make fd distributin mre efficient, and wrk t prevent hunger-causing disasters frm ccurring r t mitigate their impact when they d ccur by strengthening cmmunities and ecnmies, with a fcus n bringing peace t areas where cnflict r war is n the hrizn.
3.Smething abut Wrld Fd Day.
Wrld Fd Day(WFD) was created by the FAO in 1979.It is celebrated in mre than 150 cuntries,raising awareness and knwledge f the prblems and causes behind wrld hunger and pverty.
1.First listen and chse the crrect answer.
1. Accrding t the hst, what will David Bnd talk abut tday? A. An explanatin abut FAO. B. His career and experience. C. Wrld hunger.2. What des FAO think abut nutritius fd? A. Abut 11% f the ppulatin can affrd nutritius fd. B. Peple can’t affrd r dn’t have access t nutritius fd. C.The rich have the right t nutritius fd.3. What des FAO d t alleviate wrld hunger? A. It makes effrts t reduce climate change t alleviate wrld hunger. B. It runs a prject called Climate Smart Agriculture t develp sustainable agriculture. C. It creates hybrid rice which can greatly imprve rice prductin.4. What can we individuals d t alleviate wrld hunger in daily life? A. We can eat hybrid rice in ur daily life. B. We can take part in the prject named Climate Smart Agriculture. C. We can buy fd that supprts the envirnment and never waste fd.
2.Secnd listen t cmplete the blanks.
1. What is the FAO? What is its missin? The FAO stands fr and Organizatin. Its aim is t eliminate ____________. 2. What can seriusly affect crp prductin? Drughts, and can seriusly affect crp prductin.3. What des the FAO think abut nutritius fd? The FAO believes everyne shuld have the right___________________.4. What is the FAO ding t alleviate wrld hunger? The FAO runs called Climate-Smart Agriculture, which helps cuntries t des the FAO suggest cuntries d? Every cuntry needs t fcus n making new ______________ in agriculture t, which can ften ________the whle wrld.
achievements
Agriculture
wrld hunger
climate change
t get healthy fd
develp sustainable agriculture
3.Listen again and identify hw the speaker supprts his facts. Match the supprting evidence with the facts.
Identify supprting evidenceWhen peple present imprtant facts, they usually give sme evidence t supprt their claims. The evidence is usually mentined at the start f a sentence. Listen ut fr key wrds like reprt, research, studies, figures, findings, etc.
1. Accrding t ur latest figures, …2. There is strng evidence t suggest that …3. Our research indicates that …
A. wars can heavily affect fd prductin and transprtatin.B. (wrld hunger) stands at arund 11% f the wrld’s ppulatin. C. many peple just can’t affrd t eat well.
1.Wrk in pairs. Discuss the fllwing questins and then share yur answers in class. Use a table like the ne belw t help yu rganise yur thughts.
1. What are all the pssible causes f wrld hunger that yu can think f? 2. What can peple and cuntries d t help alleviate these causes?
invent new frms f agriculture that d nt rely s much n water, and drught-resistant crps.
build dams and levees (a lw wall built at the side f a river t prevent it frm flding)
ecnmic develpment and prgrammes that give peple mre pprtunities
internatinal negtiatin
Never waste fd; Buy fd that supprts the envirnment; Educate peple arund t becme aware f the prblem and take actin t help.
2.Wrk in grups t brainstrm ideas fr sme schl activities that celebrate Wrld Fd Day. Use the expressins t help yu cmmunicate with yur grup members.
I’d rather … In my eyes ... In my pinin ... Withut a dubt ... The advantages are … I have a feeling that ’s a pity that … I’d prefer … because … My impressin is that think/guess/believe ... Frm my pint f view, ... My view/pinin/belief is that ...
Sharing yur pinins
Sample Dialgue
A: S what shall we d fr Wrld Fd Day?B: In my pinin, a pster cntest wuld be a perfect way t celebrate it.C: That’s OK, I guess, but my impressin is that everyne is tired f making psters.A: It’s a pity, but I think yu’re right. We already have psters all ver campus, and s the message might get lst. We need t make a strnger impact.C: In my eyes, we shuld have a schl debate n hw best t slve the prblem f wrld hunger.B: The advantages are that it wuld help get peple invlved and interested. A: But I think the prblem with a debate is that it desn’t really hit hme. Peple will learn mre abut wrld hunger, that’s true. I have a feeling that very few peple will actually be mtivated t d anything abut wrld hunger thrugh a debate.B: My view is that we shuld have a Wrld Fd Day Sunday Dinner. C: What is that?B: Well, everyne buys tickets t eat a dinner, and the price f the tickets is the same. But when they buy the tickets they have t draw their tickets at randm. Sme peple get tickets t eat like a pr persn — just a small bwl f rice. Others get tickets t eat like an average persn — ndles with meat, perhaps. Finally, thers get tickets t eat like a king — rast duck and all srts f sweets.C: Withut dubt, that is the craziest thing I’ve ever heard.B: N, n. I dn’t think it’s crazy at all. A: What’s the purpse f such a meal? B: In real life, hw well a persn eats is really just a matter f luck. If yu are brn in a wealthy cuntry, yu prbably eat well and might even be fat! But if yu are brn in a pr cuntry, yu might just starve!A: I believe that yu might be nt smething. But wh’s ging t ck the fd?
Reading and Writing
chemical fertilizers
natural fertilizers
I’d like t chse Chemical farming, because it can bst the yield f agricultural prducts in this way.
But I want t grw plants withut using chemical fertilisers and pesticides.
Wh d yu supprt?Man r Lady?
Please write a shrt passage t share yur pinins abut it.
Chemical farming
Organic farming
Chemical Versus Organic Farming
A. Why are man-made chemicals still used in farming? B. What are the prblems with chemical farming?C. What is rganic farming ?D. What are the rganic methds fr prducing rich sil?
Para 1-2Para 3Para 4Para 5
Please skim the text t match the questins with the paragraphs.
Nte: The tpic sentence f each paragraph and the signpsts will be f help.
sme pesticides like DDT have been prhibited in mst cuntries because f the damage they cause t peple and the envirnment.
Detailed reading
increase prductin
fight crp disease
what sme scientists have fund is that their lng-term use can smetimes harm bth the land and peple’s health.
damage the land
these chemicals can stay in the sil and undergrund water surces fr a lng time.
animals and humans
nutritin/essential minerals
less flavur
switch t rganic farming
natural waste
change the crps
crn r wheat
peanut grw n the grund’s surface, but many ther vegetables put dwn deep rts
While rganic farming is nwhere near able t .
Why are man-made chemicals still used? Chemical farming can meet ______________ fr fd arund the wrld.
the high demand
Chemical farming guarantees(确保) a ______ yield/ utput.
Mre reasns
requires a ______ cst.
needs ____ effrt.
Detailed reading (Para.5)
Therefre, there is still a lng way t find a suitable slutin that puts sufficient fd while keeping peple and the envirnment as healthy as pssible.
meet that need
The authr uses “Benefits — Prblems — Slutins” t intrduce chemical farming and rganic farming.
fight crp disease and increase prductin
smetimes harm bth the land and peple’s health
make the sil rich; keep the air, sil, water and crps free f chemicals
cannt meet the need
still a lng way t find a suitable slutin
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
illustrate
cause and effect
intrduce a new tpic
Decisin-making
They are expecting yur suggestins!
me up with three main pints t supprt yur pinin, and then add at least ne detail t supprt each main pint.
Tpic sentence: In my pinin, ___farming is preferablet __ farming because______.Pint 1: ________________ Detail:_________________Pint 2: ________________ Detail:_________________Pint 3: ________________ Detail:__________________Cnclusin: __________________________________________
chemical farming VS rganic farming
Evaluate chemical farming and rganic farming with yur grup members.
Organicfarming
Put the individual wrk tgether t make a cmplete passage.
Writing Task
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
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
Language Pints
______________________________________ (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
_________________ (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
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