高中人教版 (2019)Unit 1 Science and Scientists教案及反思

导入新课

 leading –in  (PPT1-6)

1. Show students a picture and ask a question: .

1)What is the date of May 30th?

Answer: Science and Technology Workers’ Day

2. Look at the photos below, and tell me the scientists and their achievements.

China Jiaolong Submarine     Xu Qinan

China Quantum Computing Machine Kong Wei cheng

China Sky Eye Telescope    Nan Rendong

Beidou Navigation Satellite System Chen Zhonggui

Students can make a prediction or have a discussion with partner, the answer varies.

To guide students to predictive ability.

讲授新课

Pre-Listening  Task 1   PPT7-12

1. Look at the photos below, and discuss in groups what these activities have to do with science.

Picture1：

1. What can you see in this picture?

2. What’s the boy doing?

3. Why is he doing that?

Key words：Picture A: a giant dish,  whisper

2. Discuss in groups what these activities have to do with science. Then find out the key words of each picture.

You can find out the answer to the following question of Picture B, C, D and E.

What is going on and what makes it happen?

Picture B: a piano keyboard, play with feet

Picture C: a blue screen, bright lights

Picture D: a hall of mirrors, reflect

Picture E: a white light, cast shadows, in the colour of the rainbow

While-Listening---Task 3   PPT13-20

The photos above are related to the conversation you will hear. Using the photos, try to predict the answers to the following questions.

1. Where are the people in the conversation going to go?

2. What kind of place is it and what does it focus on?

3. What kinds of things can you do there?

Answers:

1. They are going to a science museum.

2. It is a science museum that focuses on letting visitors experience science through interactive learning exhibitions.

3. 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! Or you can play with a big piano on the floor.

Listen to the conversation and complete the descriptions with some key words.

1. A            where you can see myself reflected thousands of times.

2. You look at a blue screen for a while, and then suddenly you can see            moving around on it. These are our

3. You stand in front of                     , and it casts different shadows of you, in       the rainbow.

4. A giant       that you can use your feel to play. Instead of the sounds of a piano, it plays voices of                   .

5. A giant dish: when you speak into it, it                 the sound back and          . You can use it to speak in a           to someone 17 metres away.          .

Answers: 1. hall of mirrors ;

2. tiny bright lights; blood cells;

3. a white light; every colour of;

4. piano keyboard; classical singers;

5. reflects; makes it louder; whisper

While-Listening---Task 4  PPT21-26

Listen to the conversation carefully and match each picture according to the key words.

a hall of mirrors, see myself reflected thousands of times                             Picture D:

a blue screen, tiny bright lights, blood cells Picture C:

a white light, cast different shadows, in every colour of the rainbow                      Picture E:

a giant piano keyboard, use your feet to play, play voices of classical                   Picture B:

a giant dish, reflect the sound back, speak in a whisper, 17 metres away               Picture A:

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.

Answers: 1.  D    2. C  3.  E  4. B   5.  A

While-Listening---Task 5  PPT27-34

Look at the pictures and guess what they are about.

Answers: The City of Science and Industry, a museum in Paris

Listen to the tape and discuss the following questions in groups.

1. Would you like to go to this museum? Why or why not?

Suggested simple questions:

 1) What can you do in the City of Science and Industry?

 2) What do you like most about it?

Suggested structures:

1). I would like to go to this museum to see. . .

I am curious to know. . .

I can see my blood cells. . .

I am sure it will be. . .

2) What I like most is that I can. . .

The reason why I would like to go to this museum is that it is. .

Answers :

1)      I would like to go to this museum to see the blue screen.

I am curious to know what on earth is going on there and why I can see my blood cells moving around like tiny bright lights. I am sure it will be a lot of fun.

2) What I like most is that I can participate in the interactive activities and explore the scientific phenomena for myself.

The reason why I would like to go to this museum is that it is an amazing place for us to have fun, learn, and get inspired. Just as the pictures show, there is a lot of interesting stuff to do there.

2. Are there any museums like this in China? What other interesting museums are there?

You can discuss like these:

Have you ever been to such a museum in China?

Where is it?

What is it like?

What did you do there?

What other interesting museums did you visit?

Answers: Yes. There is the China Science and Technology Museum in Beijing. It’s very grand and mysterious. I went to explore the theories of science. I also have visited the Shanghai Science and Technology Museum.

Groupwork---Task 6  PPT35

Work in groups. Brainstorm some scientific research or experiment that you are interested in.

Discussion-Task 7  PPT36-39

Discussion and presentation.

Reading material:

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 corn flour, 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.

Ask: What information does the example give out about the scientific phenomenon?

 Discuss to prepare for the presentation, considering the Useful structures:

. . . can/cannot exist in the form of a solid/gas and a liquid/plasma. .

. . . is both a. . . and a. . . at the same time. . .     

how light/sound is reflected. . .     

. . . the existence of other. . .  

This occurs when. . .                      

If you. . ., it will become. . .

That demonstrates. . .        

This experiment/research shows. . .

Through this, we know that. . .  

We can prove that. . .         

This evidence proves. . .

Ask students to have a presentation:

The scientific phenomenon is called a non-Newtonian fluid. It can exist in the form of a solid and a liquid. What is strange is that if you put any pressure on it, it suddenly becomes hard as concrete. If you take the pressure off, it will become a liquid again. That demonstrates that something can exist as a liquid and a solid at the same time.

To make students think about or imagine the picture’s meaning.

Students can give some related sentences by the teachers’ guidance.

While listening,

students can match each picture with the key words. This can be done twice, make notes for the first, then choose the correct answer the second time.

This part is a little difficult for most students. If can not do it individually, they can have a discussion with partner or listen to the audio two or three times.

Students can have a discussion in groups and brainstorm the names of some great people and write them in the table below.

Cultivate students’ imagination

To discuss what the experiment develop  using the following language fillers to give yourself time to think.

To inspire students’ curiosity and thinking.

To help students     guess the meaning of each picture though the teacher’s guidance.

To train students how to grasp the main information while listening.

1. To improve students’ listening comprehension ability.

2. To train students’ verbal ability.

1. To train students’ imagination.

2. To broaden students’ view.

To train students’ expressiveness.

课堂练习

及课堂活动

PPT40-44

1. Translate useful structures

exist in the form of    __________

This occurs when. . . ________________.

That demonstrates. . . __________________ 

Through this, we know that. . . ____________

This evidence proves. . . _________________

这是一个以让参观者通过互动学习展览体验科学为重点的科学博物馆。

这表明某种物质有可能同时以液体和固体的形式存在。

Answers: 以……形式存在

当……时这个会发生

那个证明了……

通过这个，我们得知……

这个证据证明……

It is a science museum that focuses on letting visitors experience science through interactive learning exhibitions.

This shows that it is possible that something can exist as a liquid and a solid at the same time.

2. Discussion 

Talking about scientific phenomenon

Today, I want to talk to you about the positive and negative charges of molecules. We can demonstrate how these interact through a simple experiment using milk, dish soap, and food colouring. First, cover the bottom of a shallow plate with milk. Now add two or three drops of different liquid food colouring to the centre of the milk. They should form one large dark puddle in the middle of the milk. Now, dip a cotton swab into dish soap, and place it into the middle of the food colouring. You will see the colours quickly move to escape from the soap, making interesting and beautiful patterns. This happens because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. Like magnets, these molecules are attracted to each other, and so they appear to move around on the plate, taking the food colouring with them, making it look like the colours are quickly moving to escape from the soap.

Presentation

The scientific experiment is called interact between the positive and negative charges. Milk, dish soap, and food colouring are what the experiment needs. If you add two or three drops of different liquid food colouring to the milk, they should form one large dark puddle. But after you do so, you will see the colours quickly move to escape from the soap. That is because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. They attract each other, and so they move around on the plate, taking the food colouring with them, just like the colours are escaping from the soap.

3. Put the following sentences into English

1). Milk, dish soap, and food colouring are___________________ (实验所需要的）.

2)That is  ____________ (因为肥皂分子带有很强的负电荷）.

3)What is strange is ___________________    __________(如果你对它施加任何压力，它会突然变得像混凝土一样硬）.

Answers:

1) what the experiment needs.

2) because the dish soap molecules have a strong negative charge.

3) that if you put any pressure on it, it suddenly becomes hard as concrete.

To name the predicative

clause and state its function.

After discussion,

students can draw a conclusion about the experiment by using the words and phrases given. Then report back to the class.

To summarize grammar rules by observing and discussing.

To give students  detailed and concrete situations.

To improve students’ listening and comprehension ability.

To train students’ verbal ability.

课堂小结

Summary:

1. Develop the strategies for predicting listening content with pictures.

2. Help students understand the clues and key information in the listening dialogue.

Homework:

Do Exercise 3 on page 63 of the workbook.

Prediction

Pre-listening

While-listening

Post-listening

Discussion

1. To guide students to predict listening contents.

2. To help students     improve the ability of input and output though the listening and discussion.

3. To improve students’ listening and comprehension ability.

4. To train students’ verbal ability.

To train students’ listening ability.

板书

1.  Picture A: a giant dish, whisper

Picture B: a piano keyboard, play with feet

Picture C: a blue screen, bright lights

Picture D: a hall of mirrors, reflect

Picture E: a white light, cast shadows, in the colour of the rainbow

2.

3.

What scientific phenomenon does Picture A/B/C/D/E show? (A sound/light phenomenon. )

Did you guess correctly?

How did you make the guess? / Why didn’t you guess correctly?

4.

What can you do in the City of Science and Industry?

What do you like most about it?

5.