人教版（2019）选择性必修第二册Unit 1 Science and Scientists Using Language 1 课件课件(共17张PPT)

(共17张PPT)
Unit 1 Science and Scientists
Using Language (1)
Talk about scientific experience
What can you see in the video
Some scientific phenomena.
In this class, I will be able to:
Predict the Judy’s expeience by observing the pictures;
Get information about Judy’s experience in the scientific museum;
sort out information about China’s Jiaolong submarine and China’s quantum computing machine;
Learning objectives:
Pre-listening
Activity 1: Look at the photos and discuss:
Where are the people in the conversation going to go
What does it focus on
What can you see and what are they doing in the pictures
it might be in a science museum.
It focuses on letting visitors experience science about sound, light, reflection through interactive activities..
A. a giant whisper dish
E. a white light, casting shadows in the colour of the rainbow
B. a hall of mirrors reflect
C. a blue screen,bright lights, cells
D. a piano keyboard
Let’s match the activities with the correct pictures.
a giant dish whisper
a piano keyboard play with feet
The boy is whispering into the smaller circle and maybe the dish whisper can make his voice louder.
The gilr is playing with her feet. Maybe it shows how sound works.
Let’s look what they are doing in each picture.
a blue screen,bright lights, cells
a hall of mirrors reflect
The boy is staring at the light,it must be about light or eyesight
The gilr has hundreds of reflections.
a white light,
cast shadows, in the colour of the rainbow
This is probably an experiment with light.
(1) Activity 1 Listen to the conversation and write down the letters (A-E) for the photos in the order that you hear them.
A
B
C
D
E
1 ________ 2 ________ 3 ________ 4 ________ 5 ________
A
D
C
B
E
While-listening
Activity 2: Listen again and complete the descriptions of the photos about scientific experiences in the conversation.
Photo D: A __________________ where you can see yourself reflected thousands of times.
hall of mirrors
Photo C: You look at a blue screen for a while, and then suddenly you can see________________________ moving around on it. These are our__________________.
tiny bright lights
own blood cells
Photo E: You stand in front of_______________________ and it casts different shadows of you, in_____________________ the rainbow.
a white light
every color of
Photo B: A giant ______________________that you can use your feet to play. Instead of playing the sounds of a piano, it plays the voices of______________________.
Photo A: A giant dish; when you speak into it, it _________________ the sound back and ___________________. You can use it to speak in a_____________ to someone 17 meters away.
will reflect
make it louder
whisper
piano keyboard
classical singers
Post-listening
Activity 3: Fill in the blanks with the words and expressions in the box to finish the summary of the conversation.
piano keyboard a hall of mirrors whisper
blood cells sound experimented with
the rainbow reflected tiny bright lights
light a field trip cast different shadows
Judy had __________ to a science museum with her classmates last week. First she went to an area for _____. In _____________ Judy saw herself reflected thousands of times. She also ________________ a blue screen and saw her own _________ moving around like _______________. Judy played a giant _____________ with her feet, and it even produced the voices of classical singers. She also played a giant dish, which _______ the sound back and made it louder so that you could ________ to someone 17 metres away.
a field trip
light
a hall of mirrors
piano keyboard a hall of mirrors whisper
blood cells sound experimented with
the rainbow reflected tiny bright lights
light a field trip cast different shadows
experimented with
blood cells
tiny bright lights
piano keyboard
reflected
whisper
(1) Talk and Share: work in group of 4 and brainstorm a scientific experiment or a phenomenon, then share it with us .
Post-listening
positive and negative charges of molecules
正负电荷
blow ballon
non-Newtonian fluid
非牛顿流体
a scientific phenomenon or experiment
Talk about scientific phenomena
Example —— a non-Newtonian fluid
Name:
a non-Newtonian fluid
Opening
Materials
Process
a non-Newtonian fluid
water and cornflour (玉米粉)
pour ... like a liquid, put any pressure on it, suddenly becomes hard as concrete, take the pressure off, becomes a liquid again
Theory
Something can exist as a liquid and a solid at the same time.
Talk about scientific phenomena
Example—— a non-Newtonian fluid
Today I want to talk to you about a very strange phenomenon called a non-Newtonian fluid. You can make it easily using equal parts of water and cornflour, like I have here. A non-Newtonian fluid is strange because you can pour it like a liquid, but if you put any pressure on it, it suddenly becomes hard as concrete. In fact, it becomes hard enough to stand on. Then, as soon as you take the pressure off, it becomes a liquid again. This shows that it is possible that something can exist as a liquid and a solid at the same time.
Talk about scientific phenomena
Present
Scientific phenomena
Opening
Materials needed
Process
Today I want to talk to you about a scientific experiment named/ called...
We need ...; the material we needed is...
First, you can ...; Then, you need ...; Now, add ...; You will see ...; This occurs when ... ; If you ..., it will become ...; how light/ sound is reflected ...
Theory
This experiment/research shows/proves/ demonstrates that ...; We can prove that ...; The evidence proves ...; Through this, we know that ...; ... can/ cannot exist in the form of a solid/gas and a plasma ...
Make a short presentation to the class. Use the example and useful phrases below to help you.