人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists导学案

Unit 1 Science and Scientists 

Period 4 Using langauge （1） Listening 学案

1. to predict the listening content by observing the pictures and to develop their pre listening prediction strategies,

2. to grasp the key information and important details of the dialogue

3. to express their opinions on the scientific practice activities described in the listening dialogue, and share their experiences with their peers.

4. to give a brief presentation about a scientific research or experimental activity they are interested in

1.What do these activities have to do with science?

2:  Before listening，predict：

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?

3．Listen to the conversation and see if their answers for Activity 2 are correct. Then write down the letters (A-E) for the photos in the order that students hear them described.

4 . Listen again and complete the descriptions of the photos above

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.

5: Discuss the following questions in groups:

1）   The conversation is about the City of Science and Industry, a museum in Paris. Would you like to go to this museum? Why or why not?

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

6: Make a short presentation to the class about your choice. Use the example and useful phrases below to help them.

EXAMPLE

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. Anon-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.

_____________________________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________________________

答案

第一题：A: I think the dish in this exhibition is related to sound. Maybe the boy is whispering into the smaller circle and the dish can make his voice louder.

B: This looks like a piano you play with your feet. Maybe it shows how sound works.

C: I'm not sure what this one shows, but it must be about light or eyesight.

D: It is a hall of mirrors. Maybe it has to do with the principles of reflection.

E: This is probably an experiment involving the composition of light.

第二题：

keys:

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

 They are going to a science museum.

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

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

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

第三题． keys:  DCEBA

第四题keys:

A: reflects; makes it louder; whisper;

B: piano keyboard; class

第五题：

1. The conversation is about the City of Science and Industry, a museum in Paris. Would you like to go to this museum? Why or why not?

Yes . I can learn a lot about science and it can broaden my horizons.

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

Yes. There are other interesting museums such as art museum or museum about science and technology.

第六题：keys:

•          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 coloring. First, cover the bottom of a shallow plate with milk. Now add two or three drops of different liquid food coloring to the center 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 it into the middle of the food place coloring. You will see the colors 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 coloring with them, making it look like the colors are quickly moving to escape from the soap.

Listening text

•          Judy: Oh, I'm so sorry that you were ill and couldn't come with us on our field trip. How are you feeling now? Better?

•          Bill: Much better, thanks. But how was it?

•          Judy: Wonderful! I especially liked an area of the museum called Light Games.it was really cool. They had a hall of mirrors where I could see myself reflected thousands of times!

•          Bill: A hall of mirrors can be a lot of fun. What else did they have?

•          Judy: Well, they had an experiment where we looked at a blue screen for a while, and then suddenly we could see tiny bright lights moving around on it. You'll never guess what those bright lights were!

•          Bill: Come on, tell me!

•          Judy: They were our own blood cells. For some reason, our eyes play tricks on us when we look at a blue screen, and we can see our own blood cells moving around like little lights! But there was another thing I liked better. I stood in front of a white light, and it cast different shadows of me in every color of the rainbow!

•          Bill: Oh, I wish I had been there. Tell me more!

•          Judy: Well, they had another area for sound. They had a giant piano keyboard that you could use your feet to play. But then, instead of playing the sounds of a piano, it played the voices of classical singers! Then they had a giant dish, and when you spoke into it, it reflected the sound back and made it louder. You could use it to speak in a whisper to someone 17 meters away.

•          Bill: It all sounds so cool. I wish I could have gone with you

•          Judy: I know, but we can go together this weekend. I'd love to go there again!

•          Bill: That sounds like a great idea!