(共25张PPT)
教学目标:
经过本课学习,学生能够:
1. 听懂关于参观科学博物馆的对话,具体包括与科学探究相关的活动及人物的感受;
2. 充分利用图片中的有效信息预测听力内容;
3. 口头叙述自己参与科学探究活动的经历,并描述常见的科学现象。
教学重点:
1. 利用图片预测听力内容,理解听力对话的线索和关键信息;
2. 熟悉和科学探索经历相关的词汇和表达,学会用简单的语言描述复杂的科学现象。
教学难点:
引导学生运用听力策略,主动思考、预判听力要点;引导学生运用描述科学现象的常见句式,模仿教材文本,描述日常生活中的科学现象。
Unit 1 SCIENCE AND SCIENTISTS
Lesson 4: Listening and Speaking
Learning objectives
After this lesson, you will be able to
1
predict by using pictures to focus better when listening
2
3
listen and understand what people can do and how they feel in a science museum
talk about a scientific experience or a scientific phenomenon in daily life
Listening and Speaking
Scientific Experiences
Have you ever visited a science museum
What can you see and what can you do in it
see exhibitions(展览)
immerse(沉浸) yourself in a world of wonder(奇妙世界)
learn about new inventions
Pre-listening
1. Look at the photos. What can you see What are they doing (P.6 Ex.1)
a giant dish
speak in a whisper(轻声)
a piano keyboard
a blue screen
bright lights
a hall of mirrors
cast shadows
colours of rainbow
Pre-listening
2. Using the photos, try to predict the answers to the following questions.
(P.6 Ex.2)
(1) Where are the people in the conversation going to go
(2) What kind of place is it, and what does it focus on
They are going to a science museum.
It is a science museum that focuses on letting visitors experience science through interactive(互动的) learning exhibitions.
Pre-listening
2. Using the photos, try to predict the answers to the following questions.
(3) What kinds of things can you do there
You can probably try different activities to learn about sound, light, reflection, and so on. For example, you can go to a room with many mirrors facing each other so it looks like there are many copies of you! You can also play with a big piano on the floor.
Predict by using pictures
One way to get more out of your listening is to predict what you will hear. Using the pictures provided and the knowledge you already have, you can guess the kinds of information you should listen for. At times, you may even be able to guess exactly what will be talked about. This will help you focus better when listening, making your listening more effective.
What can we predict in these pictures
1. Who What Where When
2. Can we classify them into different types
Picture A & B: sound; Picture C&D&E: light.
Located in Paris, France, the City of Science and Industry is the biggest science museum in Europe. The goal of the City is to spread scientific and technical knowledge among the public, particularly the youth, and to promote public interest in science, research and industry. Attractions include a planetarium, a submarine, an IMAX theatre and special areas for children and teenagers, where games, interactive exhibits, and experimental areas allow them to really get their thinking caps on to explore.
Cultural Note: the City of Science and Industry
n. 天文馆/,pl n ’te ri m/
n. 潜艇
/,s bm ’ri n/
开动脑筋
图片来源于网络
While-listening
1. Listen to the conversation and see if your answers for Activity 2 are correct. Then write down the letters (A-E) for the photos in the order that you hear them described. (P.6 Ex.3) TIP: Try to note down the key phrases.
1. _____
2. _____
3. _____
4. _____
5. _____
light games
a hall of mirrors
a blue screen
tiny bright lights
cast shadows
colours of rainbow
an area for sound
a piano keyboard
a giant dish
speak in a whisper
D
C
E
B
A
While-listening
2. Listen again and complete the descriptions of the photos. (P.6 Ex.4)
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.
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 C: You look at a blue screen for a while, and then suddenly you can see
________________ moving around on it. These are our_________________.
Photo D: A ________________ where you can see yourself reflected thousands of times.
Photo E: You stand in front of _____________ and it casts different shadows of you,
in ___________________ the rainbow.
reflects
makes it louder
whisper
piano keyboard
classical singers
tiny bright lights
own blood cells
hall of mirrors
a white light
every colour of
Post-listening
1. Brainstorm and talk about a scientific experiment you are interested in.
TIP: You can refer to the sentence patterns provided. (P.7 Ex.6)
1.Opening: Today, I want to talk to you about a very strange phenomenon called a non-Newtonian fluid(非牛顿流体).
2.Materials needed: You can make it easily using equal parts of water and cornflour(矢车菊), like I have here.
3.Process: 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(混凝土). In fact, it becomes hard enough to stand on. Then, as soon as you take the pressure off, it becomes a liquid again.
4.Theory: This shows that it is possible that something can exist as a liquid and a solid at the same time.
Talking about scientific phenomena
.. can/cannot exist in the form of a solid/gas and a liquid/plasma(血浆).
... is both a ... and a.. . at the same time …
how light/sound is reflected …
This occurs when ...
If you ..., it will become ...
That demonstrates(表明) ...
This experiment/research shows ...
Through this, we know that ....
We can prove that ...
This evidence proves …
In addition to the science museums, where else can people have scientific experiences
图片来源于网络
图片来源于网络
in space
in a science museum
Post-listening
Talk about the “Water Film Experiment” in the Tiangong space station.
Theory: Zero gravity magnifies the surface tension of water.
(零重力放大水的表面张力)
a water film 水膜
a flower bud 花朵
a metal ring 金属圈
fold sth. with paper 折纸
rotate 旋转
blossom 开花
Word Bank
视频来源于网络
That demonstrates zero gravity magnifies the surface tension of water in space.
This experiment shows…
Through this, we know that ...
This occurs when things are in zero gravity.
Wang placed the flower bud folded with paper on the water film.
Wang created a water film using a metal ring and a bag filled with water.
The bud rotated magically on the film and “blossomed”.
Theory
Materials needed
Process
图片来源于网络
图片来源于网络
图片来源于网络
Post-listening
Make a presentation about the “Water Film Experiment”.
1. Opening: Today, I want to talk to you about a very interesting phenomenon and I learnt about it from the “Water Film Experiment”[Name] in the Tiangong space station.
2. Experimenter: Wang Yaping, a Chinese female astronaut, did a scientific experiment with a flower bud which she and her daughter folded with paper before the space journey.
3. Materials needed: First, she created a water film using a metal ring and a bag filled with water.
4. Process: Then, she placed the flower bud on the water film. The amazing thing was that the bud rotated magically on the film and “blossomed”!
5. Theory: This occurs when things are in zero gravity. This experiment shows that zero gravity magnifies the surface tension of water in space.
Review of new words
cast /kɑ st/ v. 投射;向……投以(视线、笑容等);投掷
reflect /r flekt/ v. 反射(声、光、热等);反映(影像)
pour /p (r)/ v. 倒出,倾泻,斟(饮料)
whisper / w sp (r)/ v./n. 耳语;低语;私语;小声说
exhibition / eks b ( )n/ n. 展览,展出
shadow / d / n. 阴影,影子,背光处
rainbow / re nb / n. 彩虹
concrete / k kri t/ n. 混凝土 adj. 混凝土制的;确实的;具体的
solid / s l d/ adj. 可靠的,固体的,坚实的 n. 固体
plasma / pl zm / n. 血浆
In addition to the science museums and space, where else can people have scientific experiences
图片来源于网络
图片来源于网络
in space
in a science museum
in daily life
图片来源于网络
Homework
Talk about a scientific phenomenon in your daily life.
temperature / tempr t (r)/ (n.)温度
humidity /hju m d ti/ (n.)湿度
moisture / m st (r)/ (n.)水分
condense /k n dens/ (v.)冷凝
Word Bank
图片来源于网络
Eg. Have you ever seen a foggy window
of a car When does it happen Why
Judy had (1)__________ to a science museum with her classmates last week. First she went to an area for (2)________. In (3) _______________, Judy saw herself reflected thousands of times. She also experimented with a blue screen and saw her own (4)__________ moving around like (5)________________. The thing Judy liked better was that a white light cast different shadows of Judy in every colour of (6) ____________. Later Judy went to the area for (7)_______. Judy played a giant (8) ____________________ with her feet, and it even produced the voices of classical singers. She also found a giant dish, which (9) __________ the sound back and made it louder so that you could (10)__________ to someone 17 metres away.
piano keyboard a hall of mirrors whisper blood cells sound
the rainbow tiny bright lights reflected a field trip light
1. Review: Complete the passage with the given expressions.
a field trip
light
a hall of mirrors
blood cells
tiny bright lights
the rainbow
sound
piano keyboard
reflected
whisper
2. Homework: Talk about a scientific phenomenon in your daily life.
foggy car windows
Opening
Today, I want to talk to you about an interesting phenomenon in our daily life.
Process
Theory
图片来源于网络
Sometimes, our car windows get foggy. This occurs when there is a difference in air temperature and humidity between the inside of the car and the outside.
Phenomenon
① If you get into the car when it is cold outside, your warm body temperature and the moisture coming from your breath will increase the humidity in the car.
② When this humid and warm air touches the cold glass, the water in the air condenses on the glass to create fog.
Though this, we know that water condenses when warm air touches the cold glass. This is how fog is formed on the car windows.
3. Think about the function of science:
Why do we study science What can we do with scientific knowledge
4. Vocabulary exercises.
投射 cast
反射 reflect
倒出 pour
低语 whisper
展览 exhibition
阴影,影子 shadow
彩虹 rainbow
混凝土 concrete
固体 solid
血浆 plasma
科学的 scientific
现象 phenomenon / phenomena (pl.)
放大 magnify
旋转 rotate
see exhibitions 看展览
learn about new inventions 了解新发明
immerse oneself in … 某人沉浸在…
a giant dish 一个巨大的接收器
speak in a whisper 轻声说
a hall of mirrors 镜子大厅
cast shadows 投射阴影
tiny bright lights 极微弱的光线
a piano keyboard 一个钢琴键盘
focus on 聚焦在
classify … into … 把…分类为…
get one’s thinking caps on 开动某人的脑筋
broaden one’s horizons 开拓某人的视野
a water film 一个水膜
a foggy window 一个起雾的窗户
Thank you!