人教版英语选修6第四单元Readingppt课件
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.
• How does it work? The air inside is warm because the
glass traps the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period.
hydro-electric dam
.
Sample lists
Things that Sources of Renewable / use energy energy non-renewable
light
coal non-renewable
heating
oil non-renewable
.
television natural gas
.
.
From the following pictures, you will know where all this energy comes from.
windmills
a coal power station
.
an oil refinery a nuclear power plant
.
solar panels
.
• What are the “greenhouse gases”? In the atmosphere surrounding the earth there are gases called “greenhouse gases”, including carbon dioxide, methane (甲烷, 沼气) and water vapor.
Illustrate how
using graphs,
global warming comes explanation.
about.
.
(Paragraphs 4---5) List two different attitudes among scientists towards global warming.
(Paragraph 1) Introduce a debate Raising a question over the issue of global warming.
.
Main ideas of each part
Writing techniques
(Paragraphs 2---3) Giving examples,
.
Scientists Opinion
Janice ◆ Over the next 100 years the Foster amo百度文库nt of warming could be
as low as 1 to 1.5 degrees Celsius, but it could be as high as 5 degrees Celsius. ◆ An increase of five degrees would be a _c_a_ta_s_t_r_o_p_h_e_.
vapour, but if we add huge _q_u_a_n_t_it_i_es__o_f extra carbon dioxide to the atmosphere by burning fossil fuels, it will cause the g_l_o_b_a_l_t_e_m_p_e_r_a_t_u_r_e to go up.
cassette player video recorder
computer
wind (wind power)
sun (solar energy)
uranium (nuclear energy)
.
nonrenewable
renewable
renewable
nonrenewable
fridge water (hydroelectric)
do something about issue.
global warming or not.
.
.
I. Read the text carefully and fill in the blanks.
Scientists Opinion Janice ◆ We need _g_a_s_e_s_ like carbon Foster dioxide, methane and water
Giving examples, making contrast.
.
(Paragraph 6)
It’s up to readers to Using a question,
think and decide
leaving readers to
whether people should think over the
.
• What do you think greenhouse gases do? They trap the heat of the sun and keep the air surrounding the earth warm.
.
.
Main ideas of each Writing techniques part
renewable
stove
plant waste
renewable
(biomass energy)
washing machine
hot springs or geysers (geothermal energy)
renewable
hairdryer the sea (tidal energy)
.
renewable
Renewable or non-renewable?
.
Renewable or non-renewable?
.
What is told in the picture?
.
.
What is the greenhouse made and used for?
.
A greenhouse is made of glass and is used for growing plants, especially during cold weather.
• How does it work? The air inside is warm because the
glass traps the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period.
hydro-electric dam
.
Sample lists
Things that Sources of Renewable / use energy energy non-renewable
light
coal non-renewable
heating
oil non-renewable
.
television natural gas
.
.
From the following pictures, you will know where all this energy comes from.
windmills
a coal power station
.
an oil refinery a nuclear power plant
.
solar panels
.
• What are the “greenhouse gases”? In the atmosphere surrounding the earth there are gases called “greenhouse gases”, including carbon dioxide, methane (甲烷, 沼气) and water vapor.
Illustrate how
using graphs,
global warming comes explanation.
about.
.
(Paragraphs 4---5) List two different attitudes among scientists towards global warming.
(Paragraph 1) Introduce a debate Raising a question over the issue of global warming.
.
Main ideas of each part
Writing techniques
(Paragraphs 2---3) Giving examples,
.
Scientists Opinion
Janice ◆ Over the next 100 years the Foster amo百度文库nt of warming could be
as low as 1 to 1.5 degrees Celsius, but it could be as high as 5 degrees Celsius. ◆ An increase of five degrees would be a _c_a_ta_s_t_r_o_p_h_e_.
vapour, but if we add huge _q_u_a_n_t_it_i_es__o_f extra carbon dioxide to the atmosphere by burning fossil fuels, it will cause the g_l_o_b_a_l_t_e_m_p_e_r_a_t_u_r_e to go up.
cassette player video recorder
computer
wind (wind power)
sun (solar energy)
uranium (nuclear energy)
.
nonrenewable
renewable
renewable
nonrenewable
fridge water (hydroelectric)
do something about issue.
global warming or not.
.
.
I. Read the text carefully and fill in the blanks.
Scientists Opinion Janice ◆ We need _g_a_s_e_s_ like carbon Foster dioxide, methane and water
Giving examples, making contrast.
.
(Paragraph 6)
It’s up to readers to Using a question,
think and decide
leaving readers to
whether people should think over the
.
• What do you think greenhouse gases do? They trap the heat of the sun and keep the air surrounding the earth warm.
.
.
Main ideas of each Writing techniques part
renewable
stove
plant waste
renewable
(biomass energy)
washing machine
hot springs or geysers (geothermal energy)
renewable
hairdryer the sea (tidal energy)
.
renewable
Renewable or non-renewable?
.
Renewable or non-renewable?
.
What is told in the picture?
.
.
What is the greenhouse made and used for?
.
A greenhouse is made of glass and is used for growing plants, especially during cold weather.