师大版（2019）必修 第三册Unit 8 Green living Viewing Workshop 课件(共15张PPT，内镶嵌2视频)

(共15张PPT)
Viewing Workshop
UNIT 8
GREEN LIVING
By the end of this period, students will be able to:
1.discuss solar energy in daily life and how solar energy changes into other forms of energy;
2.watch and understand a video on the lesson topic;
3.extract specific details from a video;
4.research ways we can use solar energy.
CONTENTS
Pre-viewing
I
While-viewing
II
Post-viewing
III
What do you know about solar energy Discuss your ideas in pairs and see if you can answer the questions.
1. What is solar energy
Energy that comes from the Sun.
2. What do we use solar energy for
As heat for making hot water, heating buildings and cooking. To
generate electricity with solar cells. To take the salt away from sea
water. For drying clothes and towels.
3. What form of energy can solar energy change into
Light energy and heat energy.
Pre-viewing
Look through the information in the table and predict the content of the video in this part.
1. Solar energy is energy that __________________ and it is what makes you feel ______________.
2. Solar energy is what causes solar panels to turn sunlight into _________.
3. Solar energy is what sets a piece of paper _______ under a magnifying glass.
4. We see solar energy as _______ and we feel solar energy as ________.
The video is about ______________________.
what the solar energy is
Watch the plete the information.
While-viewing
1. Solar energy is energy that __________________ and it is what makes you feel ______________.
2. Solar energy is what causes solar panels to turn sunlight into _________.
3. Solar energy is what sets a piece of paper _______ under a magnifying glass.
4. We see solar energy as _______ and we feel solar energy as ________.
1. Solar energy is energy that __________________ and it is what makes you feel ______________.
2. Solar energy is what causes solar panels to turn sunlight into _________.
3. Solar energy is what sets a piece of paper _______ under a magnifying glass.
4. We see solar energy as _______ and we feel solar energy as ________.
comes from the Sun
hot in summer
electricity
on fire
light
heat
Check your answers.
grind grain make plants grow power windmills help generate electricity pump water move sailboats give the cow energy
What can solar energy do to wind and plants Watch the video and choose the correct information to complete the diagram.
Chemical Energy
Mechanical Energy
grind grain make plants grow power windmills help generate electricity pump water move sailboats give the cow energy
The video is about What solar energy can do to wind and plants.
Watch the plete the information.
While-viewing
Chemical Energy
Mechanical Energy
power windmills grind grains pump water
move sailboats help generate electricity
give energy to animals
grind grain make plants grow power windmills help generate electricity pump water move sailboats give the cow energy
Complete the information.
Look through the information in the flow chart and predict the content of the video.
_____
The video is about _____________________________________________
____________________________________.
_____
_____
_____
how solar energy causes matter on Earth to change into other forms
Pre-viewing
The third part of the video
_____
_____
_____
_____
While-viewing
Watch the plete the information.
ice
water
air
clouds
the Earth
water
Complete the information.
_____
_____
_____
__________
Can we mainly rely on solar and wind energy since both of them are clean energy Why
Post-viewing
One possible version:
As far as I’m concerned,we can’t mainly rely on solar and wind energy even if both of them are clean energy, because the two kinds of energy mainly depend on weather condition.If the weather condition is not so perfect,this two kinds of energy may not be availiable.
Write a passage to introduce solar energy, covering its strengths and weaknesses.
Homework