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U4 Warming up


I feel hot !

Do you know anything that consumes energy?

things that use energy in our lives heating lamp hairdryer washing machine cassette player fridge television

r />
video player

computer
stove

micro-wave oven

Do you know where energy comes from or how energy is produced? How many sources of energy can you list?

windmills ['w?n(d)m?l]

Wind energy is used as power to produce electricity.

coal power stations Electricity is produced by burning coals.

Oil is refined and made pure.

oil refineries
[r?'fa?n(?)r?]提炼厂

nuclear power plant

Nuclear energy is converted[k?n'v??t] 转变) into electricity.

solar panels
[‘p?n(?)l] 板

Pieces of equipment on a roof that collects energy from sunlight in order to heat water and produce electricity

hydro-electric
['haidr?u i'lektrik]水力发电的

dams

Water is kept back and raised its level for irrigation or for producing electricity.

geothermal
[d?i??(?)'θ??m(?)l]

(地热的) energy plant

Electricity is generated['d?en?re?t]生成 from hot dry rocks.

An energy source is “renewable” when supplies of it never run out and “non-renewable” when one day they will run out. Which energy sources on your list are renewable and which are non-renewable?

wind energy
renewable

solar energy

renewable

hydroelectric power
renewable

geothermal energy renewable

tidal energy

renewable

biomass['ba??(?)m? s]生物量 energy

renewable

nuclear power plant, non-renewable

an oil refinery(精炼厂),

non-renewable

coal power station

non-renewable

natural gas

non-renewable

non-renewable
coal oil natural gas

renewable

fossil fuels
矿物燃料

wind (wind power) sun (solar energy) water (hydro-electric power) plant waste (biomass energy) hot springs (geothermal energy) the sea (tidal energy)

When fossil fuels are burnt, what can be produced?
Greenhouse gases (Carbon dioxide)

What problem would they lead to?
Global warming

What would global Warming result in?

Global warming also causes many

extreme weather events.
drought

flood

typhoon

Tsunami [tsu?'nɑ?m?] hits Indonesia

sandstorm

Desertification

Extreme heat 酷暑

glaciers melt 冰川融化
sea level rises 海平面上升

species extinction 物种灭绝

What should we do about global warming?

Try to reduce the use of motor vehicles.

Use less heating and air conditioning.

Plant trees.

Use the “Off” Switch.

Buy energy-efficient products.

Change a light bulb into energy-saving one.

What more things can you do?

The minimum effort is also a kind of support. 再小的力量也是一种支持。


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