北师大高中英语选修八Unit22Lesson1教学课件
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高中英语课件
madeofcanruohanxing
英语：Unit22 lesson 1 教学课 件（北师大版选修8）
Lesson 1 Global
Warming
Appreciation of a
film trailer
Words preview
consensus beyond claim relevant ray bounce pin
n. 一致的意见 prep. 超出 vt. 声称 adj. 有关的 n. 光线 vi. 反弹 vt. 固定
Words preview
agriculture coincidence condemn drought federal reservation sacrifice
n. 农业 n. 巧合 vt. 宣判死刑,注定毁灭 n. 旱灾 adj. 联邦的 n. 保留,存疑 vt., vi. 牺牲,献出
_p_r_e_v_io_u__sl_yseen as _b_e_y_o_n_d_o_u__r_c_o_n_t_r_o_l .
beyond 在那边/超出……的范围
This book on literature is beyond our reach. This bicycle is beyond repair.
2. They claim that gases pumped into the Earth’s atmosphere by the factories and vehicles have been speeding up the process of global warming and affecting our climate. What is the function of the underlined part “pumped…vehicles”?
3) By how much has the global average temperature increased in the last 100 years? By 1ºF (One degree Fahrenheit) 4) Are greenhouse gases necessary for life on Earth? Yes, they are. Because they trap heat from the sun in the Earth’s atmosphere. Otherwise the Earth would be cold and unsuitable for life.
1) refer to 提到,谈到 Don’t worry. I don’t think the manager referred to you. Promise me not to refer to the matter again.
It is used as attributive (定语). speed up 反义: slow down affect have a bad effect on sth. 3. Global warming _r_e_fe_r_s_t_o_ an average increase in the Earth’s temperature that, in turn, _le_a_d_s__to_ climate change.
What will you do every day to help reduce greenhouse gases?
In some cases, it only takes a little change in lifestyle and behavior to make some big changes in greenhouse gas reductions. For other types of actions, the changes are more significant. When that action is multiplied by the 1.3 billion people in China or the 6 billion people worldwide, the savings are significant.
6) What are the would-be consequences of global warming? It will cause more frequent flooding, heat waves and droughts. And serious diseases will spread and industries that rely on nature such as fishing will be badly affected. It will cause the polar ice to melt, raising sea levels, and flooding many islands and cities.
What will happen to penguins because of global warming?
Read the text and answer these questions.
1) What is global warming? Global warming refers to an average increase in the Earth’s temperature that, in turn, leads to climate change. 2) What human activities are causing global warming? Industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels are causing global warming.
Words preview
advocate recycle substitute threaten pancake hurricane
vt. 主张,提倡 vt. 回收利用 n. 代替品,代用品 vt. 威胁 n. 薄煎饼 n. 飓风
Expressions preview
beyond one’s control 超出……的控制，
The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane, for example) trap energy from the sun. Without these gases, heat would escape back into space and Earth’s average temperature would be about 60ºF colder. Because of how they warm our world, these gases are
不受……的控制
look ahead
展望未来
refer to
指,意即
in turn
依次
lead to
引起,导致
take action
采取Байду номын сангаас动
ahead of
在……前面
Look at the pictures and what do you know about global warming.
The Greenhouse Effect
The Greenhouse Effect
Without this greenhouse heating, the Earth's average temperature would be only about -73 C (-100 F); even the oceans would be frozen under such conditions, such as the Moon and the Mars.
What effect will global warming have on the sea and the living things in the sea?
What will happen with global warming?
Will global warming affect the life of North Polar Bear?
Taking public transport like buses can reduce greenhouse gas emissions.
And taking train can also help a reduction of greenhouse gas.
Buy the recycled products
5) How can we help solve the problem of global warming? We can make small changes like taking public transport, recycling, using low-flow shower heads, buying light bulbs that use less energy, using recycled paper and switching off the lights when we leave a room.
Owing to the rise in atmospheric carbon dioxide caused by modern industrial societies' widespread combustion of fossil fuels (coal, oil, and natural gas), the greenhouse effect on Earth may be intensified and long-term climatic changes may result.
The recycling symbol Recycled products
Recycling the bottles
Paper recycling
your paper could become part of a road or race-track
using low-flow shower heads
replace
with
buying energyefficient light bulbs
Language points
1. Scientists have reported that human beings are causing changes in the Earth’s climate---something
Moon
Mars
What Are Greenhouse Gases?
Some greenhouse gases occur naturally in the atmosphere, while others result from human activities. Naturally occurring greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Certain human activities, however, add to the levels of most of these naturally
Reading Before you start
Which countries do you think contribute more to global warning?
a) developed countries b) developing countries more industry and technology
madeofcanruohanxing
英语：Unit22 lesson 1 教学课 件（北师大版选修8）
Lesson 1 Global
Warming
Appreciation of a
film trailer
Words preview
consensus beyond claim relevant ray bounce pin
n. 一致的意见 prep. 超出 vt. 声称 adj. 有关的 n. 光线 vi. 反弹 vt. 固定
Words preview
agriculture coincidence condemn drought federal reservation sacrifice
n. 农业 n. 巧合 vt. 宣判死刑,注定毁灭 n. 旱灾 adj. 联邦的 n. 保留,存疑 vt., vi. 牺牲,献出
_p_r_e_v_io_u__sl_yseen as _b_e_y_o_n_d_o_u__r_c_o_n_t_r_o_l .
beyond 在那边/超出……的范围
This book on literature is beyond our reach. This bicycle is beyond repair.
2. They claim that gases pumped into the Earth’s atmosphere by the factories and vehicles have been speeding up the process of global warming and affecting our climate. What is the function of the underlined part “pumped…vehicles”?
3) By how much has the global average temperature increased in the last 100 years? By 1ºF (One degree Fahrenheit) 4) Are greenhouse gases necessary for life on Earth? Yes, they are. Because they trap heat from the sun in the Earth’s atmosphere. Otherwise the Earth would be cold and unsuitable for life.
1) refer to 提到,谈到 Don’t worry. I don’t think the manager referred to you. Promise me not to refer to the matter again.
It is used as attributive (定语). speed up 反义: slow down affect have a bad effect on sth. 3. Global warming _r_e_fe_r_s_t_o_ an average increase in the Earth’s temperature that, in turn, _le_a_d_s__to_ climate change.
What will you do every day to help reduce greenhouse gases?
In some cases, it only takes a little change in lifestyle and behavior to make some big changes in greenhouse gas reductions. For other types of actions, the changes are more significant. When that action is multiplied by the 1.3 billion people in China or the 6 billion people worldwide, the savings are significant.
6) What are the would-be consequences of global warming? It will cause more frequent flooding, heat waves and droughts. And serious diseases will spread and industries that rely on nature such as fishing will be badly affected. It will cause the polar ice to melt, raising sea levels, and flooding many islands and cities.
What will happen to penguins because of global warming?
Read the text and answer these questions.
1) What is global warming? Global warming refers to an average increase in the Earth’s temperature that, in turn, leads to climate change. 2) What human activities are causing global warming? Industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels are causing global warming.
Words preview
advocate recycle substitute threaten pancake hurricane
vt. 主张,提倡 vt. 回收利用 n. 代替品,代用品 vt. 威胁 n. 薄煎饼 n. 飓风
Expressions preview
beyond one’s control 超出……的控制，
The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane, for example) trap energy from the sun. Without these gases, heat would escape back into space and Earth’s average temperature would be about 60ºF colder. Because of how they warm our world, these gases are
不受……的控制
look ahead
展望未来
refer to
指,意即
in turn
依次
lead to
引起,导致
take action
采取Байду номын сангаас动
ahead of
在……前面
Look at the pictures and what do you know about global warming.
The Greenhouse Effect
The Greenhouse Effect
Without this greenhouse heating, the Earth's average temperature would be only about -73 C (-100 F); even the oceans would be frozen under such conditions, such as the Moon and the Mars.
What effect will global warming have on the sea and the living things in the sea?
What will happen with global warming?
Will global warming affect the life of North Polar Bear?
Taking public transport like buses can reduce greenhouse gas emissions.
And taking train can also help a reduction of greenhouse gas.
Buy the recycled products
5) How can we help solve the problem of global warming? We can make small changes like taking public transport, recycling, using low-flow shower heads, buying light bulbs that use less energy, using recycled paper and switching off the lights when we leave a room.
Owing to the rise in atmospheric carbon dioxide caused by modern industrial societies' widespread combustion of fossil fuels (coal, oil, and natural gas), the greenhouse effect on Earth may be intensified and long-term climatic changes may result.
The recycling symbol Recycled products
Recycling the bottles
Paper recycling
your paper could become part of a road or race-track
using low-flow shower heads
replace
with
buying energyefficient light bulbs
Language points
1. Scientists have reported that human beings are causing changes in the Earth’s climate---something
Moon
Mars
What Are Greenhouse Gases?
Some greenhouse gases occur naturally in the atmosphere, while others result from human activities. Naturally occurring greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Certain human activities, however, add to the levels of most of these naturally
Reading Before you start
Which countries do you think contribute more to global warning?
a) developed countries b) developing countries more industry and technology