Unit+5+Working+the+land+Reading+for+Writing 高中英語人教版（2019）選擇性必修第一冊

Learning

Objectives1.Clear

the

definitions

of

chemical

and

organic

farming

and

try

to

explainthem

in

your

own

language.2.Describe

the

benefits,problems

and

solutions

of

different

farming

methods.3.Write

an

argumentative

essay

giving

your

opinion

on

chemical

or

organicfarming.Chemical

FarmingVersusOrganicFarmingPre-writingpesticide

ChemicalFarmingchemical

fertilizersOrganic

FarmingnaturalfertilizersCHEMICALVERSUSORGANICFARMINGCherucal

pesuicrdes

and

arnclaI

rerunisers

have

been

in

widespread

use

in

Tamingsince

the

middle

of

the

20th

century.When

they

were

first

introduced,many

fammerswelcomedthemasagreatwaytofightcrop

disease

and

increaseproduction.Over

an

Thebenefits

and

problemsofchemicalfarming.DDThavebeen

prohibitedinmostcountriesbecauseof

thedamagetheycauseto

peopleandtheenvirorment.Asforchemicalfertilizers,cropsgrownwith

them

usually

grow

too

fast

to

be

rich

in

nutrition.They

may

look

beautiful

on

the

outside,but

inside

there

is

usually

more

water

than

essential

minerals,and

they

often

have

less

flavouraswellAsanaltemative,somefammershave

switched

to

organuc

famung.and

manycustomers

have

tumed

to

organicfood

when

theyshopat

thelocal

grocery.Organicfam

son

Whatorganicfarmingisand

|cher how

it

keep

the

soil

rich.

whehtma

Herd

oneyear,ancthen

growbeansthere

thehext.wny

drrerent

crops

areegrown

is

because

they

put

important

minerals

back

into

the

ground,making

it

readyforthenextbatchofcrops.Organic

farmersplant

diverse

crops

that

use

differentdepths

of

soil

to

help

keep

it

rich.For

example,peanuts

grow

on

the

ground's

surface,

but

many

other

vegetables

put

down

deep

roots.The

goal

of

using

different

organic

faming

methods

is

to

grow

good

food

while

avoiding

damage

to

the

environment

orTheproblemand

solution

oforganicfarming.ren

oangtheOrgaeilbtheiorgakeerForsorTitlePart

1:(Para

1&2)Part2:(Para

3&4)Part

3:

(Para

5)Texttype:ExpositionActivity10-6minsTask1.Complete

the

table

below

with

the

help

of

the

signposts

in

it.Task

2.Among

those

two

farming

methods,which

one

do

you

like

best?Give

yourreasons.1.If

you

finish

it,please

upload

your

work

on

271bay.2.Share

your

opinions

with

your

group

members.Attention:Topicsentence:In

myopinion,

farmingispreferableto

farming

because

Point

1:

Detail:

Point2:

Detail:

Point3:

Detail:

Conclusion:

Writeanargumentativeessaygivingyouropiniononchemicalororganicfarming.While-writing●An

argumentative

essayTopicsentence:In

myopinion,_farming

ispreferable

tofarming

because_?BeginningBodyEndingThey

often

change

the

kind

of

crop

grown

in

each

field

every

year.For

instance,they

may

grow

corn

or

wheat

in

a

fieldone

year,andthen

grow

beans

there

the

next….For

example,

peanuts

grow

onPoint

1:

Argument

1(Topicsentence)(Detail)

the

ground's

surface,but

many

other

vegetables

put

down

deeproots.Organic

farmers

also

use

many

other

methods

to

produce

rich

soil.An

argumentative

essayTopicsentence:In

myopinion,_farming

is

preferable

tofarming

because_Argument1(Topicsentence)+detail:Point

1:Tobeginwith,

_.(Detail)

Point2:What'smore,_.(Detail)Point3:Finally,

.(Detail)_

.Conclusion:Inclosing,Iamfully

convinced

that_BeginningBodyEndingAttention:1.thewholestructureof

your

essay2.usingwhatyoulearnttoyouressay3.beautiful

handwriting.Write

an

argumentative

essay

giving

your

opinion

on

chemical

ororganic

farming.While-writing-15minsExchange

drafts.Assess

each

other'swork

according

to

the

checklist.□1.Does

the

writer

do

a

good

job

of

expressing

his/her

opinion?□2.Does

each

para

have

at

least

one

detail

to

support

its

mainidea?□3.Does

the

writer

sequence

the

points

in

a

logical

order?□4.Does

the

writer

did

a

good

job

persuading

you

to

accept

his/herPost-writingopinion?Advantages

of

Organic

FarmingCompared

to

chemical

farming,organic

farming

enjoys

its

overwhelming

superiority.The

reasons

are

as

follows.Firstly,organicfoodishealthierand

saferas

in

organic

farming,poisonous

chemicals

like

pesticides

are

forbidden

from

being

used

on

crops.Furthermore

,organicfarmingis

environmentally

friendly.For

instance,organic

farmers

use

natural

waste

from

animals

as

fertilizer,which

is

harmless

to

the

environment.

Lastly,farmerscanincreasetheir

income

through

organic

farming.As

people

tendtopursueagreen

life,they

aremorelikelytobuyorganicfruit

andvegetables

despite

the

high

prices.Withincomparableadvantages,therefore,organic

benefit

more

people

in

the

future.farming

isexpectedtoSampleWriting:ChemicalfarmingVSorganicfarmingInmyopinion,organicfarmingispreferabletochemicalfarmingbecauseofthebenefitstotheenvironmentandtopeople,andbecause

organic

food

is

more

nutritious.Tobeginwith,chemicalfarmingharmstheenvironment.Forinstance,thechemicals

tendtoaccumulateinthesoilandwater,poisoningwildlife

and

domestic

animals.Inaddition,thepurposeof

th