外研版（2019）选择性必修 第二册Unit5 A Dedicate World Starting out课件(共12张PPT)
文档属性
| 名称 | 外研版（2019）选择性必修 第二册Unit5 A Dedicate World Starting out课件(共12张PPT) |  | |
| 格式 | zip | ||
| 文件大小 | 40.7MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-04-17 20:39:14 | ||
图片预览
文档简介
(共12张PPT)
A Delicate World
Starting Out
2020/03/07
What is an ecosystem
How many ecosystems do you know
Activity 1 New expressions.
A wonderful serenity has taken possess
tundra /'t ndr / 冻原
glassland 温带草原（接近苔原）
steppe 温带草原（树少的）
A wonderful serenity has taken possess
taiga /'ta ɡ / 北方针叶林
prairie / pre ri/ 北美草原
intertidal zone / nt 'ta d l/
A wonderful serenity has taken possess
savannah /s 'v n /
desert / dez t/
subtidal zone /s b'ta dl/
Activity 1 New expressions. (6min)
A wonderful serenity has taken possess
continental shelf 大陆架
tropical rain forests
wetlands
A wonderful serenity has taken possess
deep ocean zones
Artic ice packs 北极浮冰
A wonderful serenity has taken possess
estuary / estju ri/ 港湾
temperate rain forests
marine mud flat
deciduous forests /d s dju s/
Activity 2 Watch the video and answer the question 1. (7min)
Are humans part of Earth’s ecosystems Why
In what ways can humans affect ecosystems
Full English
Video
ECO
In what ways can humans affect ecosystems
Activity 2 Watch the video again, then discuss with your groups and answer the question 2. (7min)
Chinese-English Video
Positive: people can plant trees, feed and protect animals, recycle things and so on.
Negative: The air and water pollution and excessive waste.
Activity 3 Look at the satellite images and add some information of Aral Sea. (3min)
What is happening to the area according to the satellite images
Located in Central Asia, between Kazakhstam to the north and Uzbekistan to the south
The fourth largest lake (1960s)
Just four smaller lakes (NOW)
Activity 4 Watch the change of Aral Sea, answer the questions.
Activity 4 Discuss with your groups and draw the map in outline. (5)
What do you think a later satellite image would show Why
Activity 4 Discuss with your groups and answer the question.(5min)
What do you think caused these changes
The irrigation project
Climate change
Vegetation Damage
...
Homework
Please review the expressions related to the ecosystems timely.
Thanks for your attention!
A Delicate World
Starting Out
2020/03/07
What is an ecosystem
How many ecosystems do you know
Activity 1 New expressions.
A wonderful serenity has taken possess
tundra /'t ndr / 冻原
glassland 温带草原（接近苔原）
steppe 温带草原（树少的）
A wonderful serenity has taken possess
taiga /'ta ɡ / 北方针叶林
prairie / pre ri/ 北美草原
intertidal zone / nt 'ta d l/
A wonderful serenity has taken possess
savannah /s 'v n /
desert / dez t/
subtidal zone /s b'ta dl/
Activity 1 New expressions. (6min)
A wonderful serenity has taken possess
continental shelf 大陆架
tropical rain forests
wetlands
A wonderful serenity has taken possess
deep ocean zones
Artic ice packs 北极浮冰
A wonderful serenity has taken possess
estuary / estju ri/ 港湾
temperate rain forests
marine mud flat
deciduous forests /d s dju s/
Activity 2 Watch the video and answer the question 1. (7min)
Are humans part of Earth’s ecosystems Why
In what ways can humans affect ecosystems
Full English
Video
ECO
In what ways can humans affect ecosystems
Activity 2 Watch the video again, then discuss with your groups and answer the question 2. (7min)
Chinese-English Video
Positive: people can plant trees, feed and protect animals, recycle things and so on.
Negative: The air and water pollution and excessive waste.
Activity 3 Look at the satellite images and add some information of Aral Sea. (3min)
What is happening to the area according to the satellite images
Located in Central Asia, between Kazakhstam to the north and Uzbekistan to the south
The fourth largest lake (1960s)
Just four smaller lakes (NOW)
Activity 4 Watch the change of Aral Sea, answer the questions.
Activity 4 Discuss with your groups and draw the map in outline. (5)
What do you think a later satellite image would show Why
Activity 4 Discuss with your groups and answer the question.(5min)
What do you think caused these changes
The irrigation project
Climate change
Vegetation Damage
...
Homework
Please review the expressions related to the ecosystems timely.
Thanks for your attention!