老师：Hello, boys and girls. I'm Miss John. I come from Nanjing in Long Primary School. Today we are going to learn Unit 5, Science Storytime. I have some rules in my class. Can you guess in English class what do they mean? Yes, I hope you can speak loudly, listen carefully, work together with me and think hard in my lessons. Can you do it? I believe you can. Look, these pictures are signs. Read up me signs. Science. Today we are going to learn unify science. So let's think and say, where can we see signs? Let's think about it.
老师：Okay, boys and girls, where can we see signs? Yes, we can see signs in the supermarket, in the park, in the metro, in the school, or in the shopping center? Here we have a new word. Please read of me, center Center. Shopping center and many other public places. The signs are around us. Now let's remember what signs can we see there? Yes, we can see signs like them. I think you are familiar with them, do you?
老师：Today we are going to learn how to talk about science, too. Now let's look. Our old friends Mike, Helen and Tim are at a shopping center. What places do they go at the shopping center? Let's have a look. Oh, we see. At first they go to a juice shop. Then they go to a bookshop. At last, they go to a restaurant. Here it means a place where you can buy or eat a meal. It's a little bit difficult, but don't worry. Look, can you read this word? Want. Want. You can read right? Right now together? Restaurant. Restaurant. And in these places, what signs do they see?
老师：Now, let's learn these science names. You can open your book and turn to page fifty. Let's look and learn. The first sign is wet floor here. Wet means not dry. Maybe there's some water on it. Read up me, wet, wet, wet floor. Good. The second one, you can see it in your school, and it's no smoking. The verb is smoke. Now read up to me. Oh, smoke. Smoke. No smoking. No smoking. What about the third one? It's no eating or drinking. No eating or drinking. Okay, look at the last one. It's no littering. The verb is litter. Please read after me. Late, later, later. No littering, no littering. Now you know the names, but what do they mean? Let's go into the story. In first part. How do they talk about the sign? Let's watch.
学生：Mike, Helen and Tim are at a shopping center.
学生：Be careful, Tim. Can you see the sign? What does it mean? It means the floor is wet.
老师：So how do they talk about it? Now look, Helen says, can you see the sign? And the team doesn't know the sign. So how does he ask? Yes, he asks, what does it mean? What does it mean? If you don't know the meaning, you can ask, what does it mean? Now read after me. What does it mean? And how does Helen answer? Yes. Helen tells him it means the floor is wet. It means the floor is wet. So Mike reminds hi
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