Question

急求一篇英语作文！最好原创！速度越快越好！今天就要！300个单词就可以了。题目是How can a

急求一篇英语作文！最好原创！速度越快越好！今天就要！300个单词就可以了。题目是How can alternative sources of energy be harnessed effectively？

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Answer 1

　

How can the alternative sources of energy be harnessed effectively?

Source, as one of the most significant words during the 21st century, has contributed

to our society for so many years. However, the traditional harnessing of sources, like

the

fossil

fuels,

began

to

threaten

our

life

as

well

as

the

whole

environment.

The

excessive

emissions

of

the

greenhouse

gases

such

as

carbon

dioxide,

is

the

crucial

factor to rethink how to explore more environmental sources instead of the traditional

ones. According to some statistics, some countries have started their plan harnessing

renewables and achieved satisfactory success.

As we know, there are various sources, considered to be the bounty of nature, such as

the oil, coals and other fossil fuels, which are becoming the culprit of pollution now.

When more individuals drive their gasoline cars across the city center, for example,

the

ever-increasing

emissions

which

include

harmful

gases

would

spread

and

even

destroy our ozonosphere. Besides, the reservation of these traditional sources in our

earth had reduced sharply and in the near future people would probably have no these

sources to create heat or electricity.

Alternative

source,

which

was

put

forward

to

solve

the

problem

of

both

resource

shortage and environmental pollution, has been paid more and more attentions now.

For

instance,

some

experts

show

that

some

renewables

like

the

solar

system,

wind

turbines,

nuclear

power

and

hydropower

energy

should

be

explored

and

used

abundantly

to

be

the

main

sources

for

individual

’

s

life.All

the

renewables,

as

the

substitutions of traditional sources, should at least create the equal energy and supply

heat

or

electricity

for

individuals

without

pollutant

or

other

harmful

gases.

At

the

same

time,

all

these

renewables

should

be

extracted

easily

from

our

life

or

other

creatures.

Finally, the whole process of harnessing renewable sources cannot be too

expensive to afford by nations. Therefore, choosing the appropriate sources should be

a crucial step when carrying out the plans.

So far, there have been several systems which had been carried out by some regions

and achieved partly successes. The biogas system, for example, is a perfect strategy

for country to implement their plans just because it costs less and results well. People

collect

food

waste,

manures,

cooking

oils

and

other

ingredients

to

produce

the

gas

which can finally be burned to create energy for our life. So it is clearly that we can

get

the

gas

easily

and

cheaply,

and

most

importantly,

it

all

comes

from

nature

and

produce

no

harmful

emissions.

Therefore,

the

biogas

sources

definitely

play

the

crucial role and could be one of the suitable substitutions.

In conclusion, to protect our ecosystem and circumstance, traditional fossil fuels must

be gradually forbidden and more renewables should be explored. Besides, government

and other institutions should be the main power to carry out their plans so that the all

the processes can be forced to precisely and accurately.