保护树木英语演讲稿3分钟

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each year, people burn or cut down 143,000 square

kilometers

(55,000

square

miles)

of

the

forest.

people

who

burn

or

cut

down

trees

do

it

for

different

reasons:

farmers cut down trees in order to get more fertilize

lands to

grow

rice

or

vegetables,

and

use

the

woods as

fuel.

timber

companies

cut

down

trees

and

turn

them

into

furniture

or

paper

productions.

as

to

goal

miners,

they

remove the forests to find out whether there are goal

underground.

however,

many

of

us

fail

to

realize

that forests

are

the

lungs

of

the

earth.

when

we

cut

down

trees,

we

also

push

ourselves

in

to

a

dangerous

situation.

that

is

the

global

warming.

when

you

come

to

think

about

it,

there

are

only

few

ways

to

solve

these

negative

effects:

stop

cutting down trees blindly; try to find some clear

energy

that

can

replace

oil

and

coal.

but

these

solutions can be impractical to some degreed.

why trees can be so important to the whole nature?

first of all, trees are the habitat of many animals.

when we cut down trees, we not only destroy animals

’

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habitats

but

also

ourselves.

we

just

gradually

destroy

natural

links.

the

result

is

that

many

spices

of

animals

and

plants

are

dying

out.

secondly,

cutting

down

trees

cause

global

warming,

to

some

degree.

naturalists

compare forest to human

’

s lungs. the forests absorb

the carbon dioxide and other gas that cause global

warming,

and

then

give

off

the

oxygen

that

good

for

the

human

beings

and

other

living

creatures.

it

’

s

refreshed

the

air

as

well

as

reduced

the

noise.

if

the

air

quality

is

bad,

people

may

die

from

cancers,

or

the

new

diseases

for which they have no immunity. forests also play an

important

role

in

the

prevention

of

natural

disasters.

warmer temperatures cause water to expand and also

create more water by melting polar ice caps. that

’

s

to

say,

the

nations

which

near the

ocean

may

have

been

flooded

by

the

water.

but

the

forests

can

prevent

water

loss

and

soil

erosion,

and

cool

off

the

global

temperatures.

it

’

s

the

key

to

keep

the

balance

of

the

nature.

sometimes people only care about money making; they

don

’

t care about the price we pay for the pollution.

when

the

disaster

is

around

the

corner,

we

may

be

afraid

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