人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课文配套ppt课件

这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课文配套ppt课件，共30页。PPT课件主要包含了Leading-in，n 彩虹，n 阴影，v 投射，reflects，whisper，n 分子微粒等内容，欢迎下载使用。

Learning Aims
In this class, yu willget infrmatin abut Judy’s experience in the scientific museum;talk abut different scientific experiences.
Pre-listeningActivity 1: Lk at the phts and talk abut what these activities have t d with science.
What can yu see in the picture?What is he/she ding?Why is he/she ding that?
Activity 1: Lk at the phts and talk abut what these activities have t d with science.
a pian keybardplay with feet
a giant dishwhisper
a hall f mirrrsreflect
a blue screenbright lights
a white lightcast shadwsin the clur f the rainbw
Activity 2: Using the phts, try t predict the answers t the fllwing questins.
1. Where are the peple in the cnversatin ging t g?2. What kind f place is it, and what des it fcus n?3. What kinds f things can yu d there?
1. Where are the peple in the cnversatin ging t g? A science museum/centre.2. What kind f place is it, and what des it fcus n? A place fr delight, educatin and inspiratin. Scientific phenmena/discveries n sund and light.3. What kinds f things can yu d there? Interactive activities t experience/experiment/explre.
Listen t the cnversatin t check yur predictin in Activity 2.
Take dwn key wrds.1. Where are the peple in the cnversatin ging t g?2. What kind f place is it, and what des it fcus n?3. What kinds f things can yu d there?
Activity 3:
Listening and speaking
(1) Listen t the cnversatin t check yur predictin in Activity 2.
1. Where are the peple in the cnversatin ging t g?They are ging t a science museum.2. What kind f place is it, and what des it fcus n?It is a science museum that fcuses n letting visitrs experience science thrugh interactive learning exhibitins.
3. What kinds f things can yu d there?Yu can prbably try different activities t learn abut sund, light, reflectin, and s n. Fr example, yu can g t a rm with many mirrrs facing each ther s it lks like there are many cpies f yu! Or yu can play with a big pian n the flr.
(2) Write dwn the letters (A-E) fr the phts in the rder that yu hear them.
1 ________ 2 ________ 3 ________ 4 ________ 5 ________
a hall f mirrrssee myself reflected thusands f times
a blue screentiny bright lightsbld cells
a white lightcast different shadwsin every clur f the rainbw
a giant pian keybarduse yur feet t playplay vices f classical singers
a giant dishreflect the sund backspeak in a whisper17 metres away
Activity 4: Listen again and cmplete the descriptins f the phts abut scientific experiences in the cnversatin.
Pht A : A giant dish; when yu speak int it, it ________ the sund back and ________________. Yu can use it t speak in a ________ t smene 17 metres away.
Pht B : A giant ______________ that yu can use yur feet t play. Instead f playing the sunds f a pian, it plays the vices f ________________.
makes it luder
pian keybard
classical singers
Pht C : Yu lk at a blue screen fr a while, and then suddenly yu can see ________________ mving arund n it. These are ur _________________.
Pht D : A ______________ where yu can see yurself reflected thusands f times.
tiny bright lights
wn bld cells
hall f mirrrs
Pht E : Yu stand in frnt f ____________, and it casts different shadws f yu, in ________________ the rainbw.
a white light
every clur f
Listening text:
Judy: Oh, I'm s srry that yu were ill and culdn't cme with us n ur field trip. Hw are yu feeling nw? Better?Bill: Much better, thanks. But hw was it?Judy: Wnderful! I especially liked an area f the museum called Light Games. It was really cl. They had a hall f mirrrs where I culd see myself reflected thusands f times!Bill: A hall f mirrrs can be a lt f fun. What else did they have?Judy: Well, they had an experiment where we lked at a blue screen fr a while, and then suddenly we culd see tiny bright lights mving arund n it. Yu'll never guess what thse bright lights were!Bill: Cme n, tell me!
Judy: They were ur wn bld cells. Fr sme reasn, ur eyes play tricks n us when we lk at a blue screen, and we can see ur wn bld cells mving arund like little lights! But there was anther thing I liked better. I std in frnt f a white light, and it cast different shadws f me, in every clur f the rainbw!Bill: Oh, I wish I had been there. Tell me mre!Judy: Well, they had anther area fr sund. They had a giant pian keybard that yu culd use yur feet t play. But then, instead f playing the sunds f a pian, it played the vices f classical singers! Then they had a giant dish, and when yu spke int it, it reflected the sund back and made it luder. Yu culd use it t speak in a whisper t smene 17 metres away.
Bill: It all sunds s cl. I wish I culd have gne with yu.Judy: I knw, but we can g tgether this weekend. I'd lve t g there again!Bill: That sunds like a great idea!
Activity 5: Talk abut smething mre n the scientific museum.
The cnversatin is abut the City f Science and Industry, a museum in Paris. Wuld yu like t g t this museum? Why r why nt?Are there any museums like this in China? What ther interesting museums are there?
The cnversatin is abut the City f Science and Industry, a museum in Paris. Wuld yu like t g t this museum? Why r why nt?Yes.The exhibitins seem really interesting. I think I wuld learn a lt there.
Are there any museums like this in China? What ther interesting museums are there? Yes, there is, fr example, the China Science and Technlgy Museum in Beijing and the Shanghai Science and Technlgy Museum.
Activity 6: (1) Brainstrm a scientific research r experiment (Page 7, Activity 6 & 7).
ExampleWhat scientific phenmenn is the example abut?D yu knw the phenmenn? Where did yu knw it?What ther scientific research/experiments have yu ever dne r read abut?
(1) Brainstrm a scientific research r experiment (Page 7, Activity 6 & 7).
1. What scientific phenmenn is the example abut?A nn-Newtnian fluid.2. D yu knw the phenmenn? Where did yu knw it?Yes. In TV prgrams r bks.3. What ther scientific research/experiments have yu ever dne r read abut?Fr example: the psitive and negative charges f mlecules.
(2) Read the expressins t talk abut scientific phenmena (Page 7), using the fllwing expressins
Sample Presentatin Tday,I want t talk t yu abut the psitive and negative charges f mlecules. We can demnstrate hw these interact thrugh a simple experiment using milk, dish sap, and fd cluring.First, cver the bttm f a shallw plate with milk. Nw add tw r three drps f different liquid fd cluring t the centre f the milk. They shuld frm ne large dark puddle in the middle f the milk. Nw,dip a cttn swab int dish sap,and place it int the middle f the fd cluring.Yu will see the clurs quickly mve t escape frm the sap,making interesting and beautiful patterns.This happens because the dish sap mlecules have a strng negative charge, and the milk mlecules have a strng psitive charge. Like magnets, these mlecules are attracted t each ther, and s they appear t mve arund n the plate, taking the fd cluring with them, making it lk like the clurs are quickly mving t escape frm the sap.