师：Tell me, what is the song about?
生：（举手）Oh, yes. You please.
生：It's about the rules.
师：Yes, it is about the rules. Please sit down. And where can we find rules in our life? Where can we find the rules?
生：（举手）Oh, yes. You please.
生：At school.
师：Yes, at school. And where else? Yes, you please.
生：Underground station.
师：Yes, in the underground station. Any else?
生：（举手）In the library.
师：Yes, in the library. Okay, you please.
生：In the cinema.
师：Yes, in the cinema. Very good. So, today we are talking about... Let's read the title together. "Rules in Different Places". So, today we are going to talk about more places in our daily life. Okay?
生：Okay.
师：Okay. First, let's meet our new friend today. So, what's his name?
生：Paul.
师：Yes, Paul is an exchange student from Swan Lake Middle School. And can you guess the meaning of "exchange student"?
生：（举手）Ah, yes. You please.
生：Jiao huanshen（交换生）.
师：Yes. And we know as an exchange student, he doesn't know much about the rules in New Star School. So, he is looking at a display board in the club room with Lu Yao. Here, you can see this word "display board". Read after me. This is a display board.
生：This is a display board.
师：This is a display board. And here, do you know the meaning of "club room"?
生：Club... For example, we have basketball club, tennis club, table tennis club.
师：So, what does "club" mean? You please.
生：社团教室。
师：So, let's see. This is a picture of the display board. Can you guess the meaning of "display board"? What's the meaning?
生：（举手）Yes, you please.
生：There's a play ball...还有什么意思，可以猜猜。
生：（举手）uh, signs（标志）.
师：Maybe. You please.
生：注意事项。
师：Oh, there's a playboard here. You can see this is a display board. Maybe there are some... you say...
生：注意事项。
师：Okay, so it means 展示板。So, what is the display board about? What can you see in it?
生：（举手）Yes, you please.
生：I can see some photos in it.
师：There are some photos. And actually, what are they?
生：Signs（标志）.
师：Yes, signs. And beside each sign, we can see a rule, right? So, what is the display board about?
生：（举手）Yes, you please.
生：It's about what we can do or we can't do.
师：Yes, what we can do and what we can't do. That is the rules. Yes. And what about this one? What is it? It is a picture here. According to this display board, can you tell me in which club room can we find this display board? Where can we find it? I'll give you some options. You please.
生：In the science lab.
师：In the science lab. And can you give us the reason why?
生：Because the girl in the picture is doing an experiment.
师：Very good. So, can you tell me how to spell "experiment"?
生：E - X - P - E - I - M - E - T.
师：Yes, very good. "Experiment". In Chinese, it means 做实验。So, we know Paul and Lu Yao are in the science lab. Let's take a close look at this display board. You can also take out your book and turn to page 20. Okay. So, let's talk about the first rule. What rules must we follow in the lab? The first one.
生：（举手）Yes, you please.
生：We can't leave rubbish on the floor.
师：Yes, you can say "We can't leave rubbish on the floor", but here, which word did he use? This one.
生：Never.
师：Yes, we can also say "Never leave rubbish on the floor". Okay, very good. And how else can we say the rule? For example...
生：We mustn't leave rubbish on the floor.
师：So, let's read the two sentences together. "Never"... Ready, go.
生：Never leave rubbish on the floor. We mustn't leave rubbish on the floor.
师：Good job. And what about the next rule? What else must we do or not do in the lab?
生：（举手）Yes, you please.
生：We mustn't eat food or drinks in the lab.
师：Okay, very good. We mustn't eat food or drinks in the lab. Anything else? Attention, you can say the rule here. What else can we say?
生：We mustn't... Yes, we also can't have food or drinks in the lab.
师：So, what else does it mean? 还有什么？So, this group, read these two sentences. "No food"... Ready, go.
生：No food or drinks in the lab.
师：Louder, please.
生：We mustn't have food or drinks in the lab.
师：Okay, very good. Then we'll go on to the next rule. Anything else we must do or not do in the lab? This one, who can tell me? Any volunteer?
生：（举手）Oh, yes. You please.
生：We mustn't wear open - toed shoes in the lab.
师：Yes, you say "We mustn't wear open - toed shoes in the lab". Good. So, here, pay attention to this word "toes". And what else can we say? Can you use something like "never", "no", or... Yes, you please.
生：Don't wear open - toed shoes in the lab.
师：Well done. Okay, sit down, please. So, let's read the two sentences together. "Don't"... Ready, start.
生：Don't wear open - toed shoes in the lab. We mustn't wear open - toed shoes in the lab.
师：And pay attention here. Do you know the meaning of "open - toed"? You can see the picture here. So, what does "open - toed shoes" mean in Chinese?
生：（举手）Oh, yes. You please.
生：不包脚的鞋子。
师：Yes, 不包脚的鞋子。Also, we can say 露趾的鞋子。And I also have a picture here. So, do you think it is an open - toed shoe? Yes or no?
生：No.
师：So, how can we say it? It is shoes... What kind of shoes do you think it is? Open... no. So, it can be a closed - toed shoe. Read after me.
生：Open - toed shoes. Open - toed shoes.
师：Louder.
生：Open - toed shoes. Open - toed shoes.
师：Okay, your group, one by one.
生：Open - toed shoes.
师：Good.
生：Open - toed shoes.
师：Well done.
生：Open - toed shoes.
师：Yes, great.
生：Open - toed shoes.
师：Well done.
生：Open - toed shoes.
师：Excellent. Okay. And this one, "closed - toed shoes".
生：Closed - toed shoes.
师：Then we'll move to this rule. What else can we do, or must we do or not do in the lab?
生：（举手）Yes, you please.
生：We must always wear safety gloves when we are working in the lab.
师：Very good. We must wear safety... pay attention to this word here. "o" pronounce
师："glove", "glove".
生：glove, glove.
师：So, we must always wear safety gloves when working in the lab. Anything else?
生：（举手）Oh, yes. You please.
生：Always throw broken glass into the broken... this one.
师：We are talking about this one. So, always wear... we must always wear safety gloves when working in the lab. Okay, great. Sit down, please. So, let's read the two sentences together. "Always wear"... Ready, start.
生：Always wear safety gloves when working in the lab. We must always wear safety gloves when working in the lab.
师：Very good. Okay, then we'll move on to the last one. So, we know in the picture, this girl is wearing a pair of... how do you say it? Safety gloves. And in Chinese, it means "安全手套"。So, I have a question here. Why must we wear safety gloves in the lab? Why? Think about it.
生：（举手）Oh, yes. You please.
生：It is for our safety. It can keep us safe.
师：Yes. And what about the last rule? Anything else we must do or not do in the lab? Yes, can you...
生：We must throw broken glass into the broken... uh, glass...
师：Yes, very good. Pay attention to this word. Okay, read after me. "broken".
生：broken, broken, broken, broken, broken.
师：And this word, read after me. "container".
生：container, container, container, container, container, container, container.
师：Okay, your group, one by one.
生：container.
师：Yes, good.
生：container.
师：Very good.
生：container.
师：Excellent. Good job. Okay. So, is there any sentence to describe this rule? We can use "mustn't" or we can use... yeah, yes, you please.
生：We must throw broken glass into the broken - glass container.
师：Yes, very good. So, let's read these two sentences together. Ready, start.
生：Always throw broken glass into the broken - glass container. We must always throw broken glass into the broken - glass container.
师：Okay, again. "container", "container", "broken", "broken", "broken", "broken". And here, can you guess the meaning of "broken"?
生：破碎的。
师：Yes, I hear it. 破碎的。So, let's see it up. And what about this one? It means "荣幸"? So, why must we throw broken glass into the broken - glass container? Why?
生：（举手）Okay, you please.
生：Because it's dangerous.
师：Yes, it means... What does it mean? 什么是危险？
生：Broken glass.
师：Yes, so we can say "Broken glass is very dangerous". So, we must throw it into the broken - glass container. Okay. So, these are the sentences about rules. And this sentence, how can we call them? 我们怎么管它们叫什么？"Don't wear", "never leave"… These sentences, what do we call them?
生：祈使句。
师：So, let's look at its English name. Read after me. "imperative sentences".
生：imperative sentences.
师：imperative sentences.
生：imperative sentences.
师：imperative sentences.
生：imperative sentences.
师：Very good. Okay. And what about this one? How can we call them? We all use the modal verb "must" or "mustn't". So, it can also tell us about rules. And two of them, we call it "the sentence patterns to give orders"。来告诉我们一些指令。Okay, so it's time for you to make a dialogue with your partner. First, I'll show you an example. I am student A, and you are student B. Let's make a dialogue first. So, you can take out your books and look at the rules on page 20. There are some mistakes in our equipment. 我们的屏幕有一些问题。It is in our textbook okay. The five signs 实际上是5个标志。Okay, so I'm student A.
师：What rules must we follow in the lab?
生：We must... we must... wear safety gloves when working in the lab.
师：Very good. What else must we do or not do?
生：We... we... we... Yes, choose one. We never leave rubbish on the floor.
师：Pay attention. "never"是一句祈使句。前面有没有主语？
生：没有。
师：So, "never", "never leave rubbish on the floor". Yes, good. Okay, sit down, please. So, can you understand my meaning? So, work in pairs. It's time for you. Okay, ready, start.
（学生分组对话）