师：Alright, boys and girls, are you ready for the class? Okay, nice to see you. So, I'm your guest today. Good morning, class. Can you turn left and say good morning to other teachers? Hello, Peter. Thank you very much. Take a seat, please. It's really my honor to be your English teacher today.
Do you want to know something about me? Well, let me show you some photos of myself. Look at them carefully and repeat after me. Let's have a try. Are you ready? Here we go. Hello, everybody. Eyes on me. I see you. You can sit down then. As you see, I was a little fat. Good. Then my hair was short. Then I could speak Chinese. Then I studied at school. These are about me. Do you like my story? Thank you very much. What is my topic?
生：The boy, please. It's about then.
师：And now. Thank you very much. You're right. It's about then and now. So today we'll learn something. Step 4, then. In this class, we'll try to make a growth booklet of yourself and do it in three steps. First, we'll summarize the rules of the past tense, because we learned it from Unit 1 to Unit 4, right? Then try to use it, and later we will check whether you've mastered it.
After doing all of this, I hope you'll have a clear understanding of the past tense in your mind. By the way, through this class, we'll think about a big question of this unit. That is, do you like the past or the present? Are you clear?
Alright, first, let's take a look at Mike's family. Think about, do Mike's family like the past or the present? Let me show you. First, listen. Hi everybody. I'm Mike, I like the present. Six years ago, I could only read and draw, but I couldn't write. Now I can do many things. For example, I can play football. So I'm better right now. What about you? What's your idea? Please work in groups. Choose any character. Talk about whether he or she likes the past or the present. Is everything clear? Let's do it.
师：All right, boys and girls, time is up. So Mike's family, please come here. Come to the front, bring your microphone here and stand in a line to share your opinions with us. Okay, Michael first.
生：Hello, everyone. I'm Mike. Now, I can read, draw and write. I couldn't do this before, but now I can do many things, like playing football.
师：Yes, you have more abilities right now, right? Thank you. What about Mr Brown?
生：Hi, everybody. I'm Mr Brown. I like the present. 20 years ago, I could only write letters to my friends, but now I can use my mobile phone to call people anywhere and it is very convenient. So I like the present.
师：Life is easier right now. Good. Mike's grandpa.
生：Hi, I'm Mike's grandpa. I like the present better, too. Thirty years ago, I listened to the radio and read the newspapers for news. But now I can read e - books on the internet and get news on the internet too. So it's more convenient.
师：It's very easy to get news right now. Now it's Mrs. Brown.
生：Hi, I'm Mrs. Brown. I like the present. 20 years ago, I made friends at school. Now I can make friends on the internet.
师：I believe you have a lot of friends now, right? Thank you. Give them a round of applause. Please go back to your seats. So these students, they like their present. So I guess Mike's family does too, right? Because they think life is very easy right now. But do you know what brings us a better life? An easy life? Please, the boy.
生：Internet. And the improvement of technology.
师：Wonderful. The development of technology brings us a better life, right? You have a really good understanding of this story. And just now I noticed one special thing. You used a special tense. What is it? Yes, past tense. Actually, in the story, we can see a lot of sentences about the past tense. Can you read them out? Let's have a try. Six years ago...
生：Six years ago, Mike could only read and draw but couldn't write. 20 years ago, Mr Brown wrote letters to his friends as he didn't have a telephone at home. 30 years ago, grandpa listened to the radio and read newspapers for news. 20 years ago, Mrs Brown made friends at school.
师：All of these sentences are about the past tense, right? And while using it, we need to pay attention to some important rules. So now let's try to recall the rules of the past tense. Actually, when Mike talked about his past, he also used the past tense. Please open your books, turn to page 39. Let's read these sentences together loudly. Six years ago, one, two, one year ago... Okay, 20... Now, 30 years ago, they listened to the radio. Look at these sentences carefully. Can you find out the two most important rules of the past tense? Discuss in pairs. Okay, I'll give you some time. Here we go.
师：All right, boys and girls, what have you found? The girl, please.
生：As I found, we usually change the original verb to a past - tense form to form a sentence about the past.
师：Thanks. Very good. You've pointed out two key points, right? First, we can see some special time expressions, and also we can see some past - form verbs. Look, these are some phrases about past time. And this is rule No. 1. We usually use past - time expressions. Here we have some special verb forms. We call them past forms. So that is rule No. 2. We should use the past form of the verb. You're so clever.
Let's focus on the past - time expressions first. You know, there are a lot of words, phrases or sentences that indicate past time, right? For example... What else do you know? Take out your worksheet and write down more of them. Okay, let's get started. Have a brainstorming.
师：Alright, boys and girls, any words or phrases about past time? Share with me, please, the boy.
生：One of the words that indicates the past tense is “just now”.
师：Okay.
生：And sometimes “when... was young” can also indicate past time.
师：What about you, the boy?
生：“A long time ago.”
师：Very good. What else?
生：“Last year”, “last week”.
师：Very good. Pay attention to “ago” and “last”. These are some past - time symbols. When you see them, we should use the past tense. Very good. You know a lot about past time. What about the past form? Let's play a little game. Okay, I say the base form. You say the past form. Listen carefully. The first one, “go”. Come on, please.
生：Went, W - E - N - T.
师：Thank you. W - E - N - T. And next one, “listen”.
生：Listened, we add “ed” after it.
师：What about “dance”?
生：Danced, we add “d” after “dance”.
师：And now let's make it a little bit harder. Okay, we're gonna have a little challenge. Boys and girls, you will have a PK. You can choose any word in turn, say out its past form and then spell it. After that, you will get some points. If you get more points, you win the game. Are you clear? Answer as quickly as you can. I think ladies first. Come on, ladies first. Any lady, beautiful girl, please. Come on, choose one. Just stand there.
生：“become”. It's “became”, B - E - C - A - M - E.
师：Thank you. One point for you. Girl, choose.
生：“eat”. It becomes “ate”, A - T - E.
师：That's right. Here you are. Boy, your turn.
生：“read”. It becomes “read”, but the pronunciation changes. R - E - A - D.
师：Yes. No changes for spelling, right? Girl, go ahead.
生：“can”. It became “could”, C - O - U - L - D.
师：One point for you, boy.
生：“shout”. It becomes “shouted”, S - H - O - U - T - E - D.
师：Also, one point for you. Come on, girl, please.
生：“age”. It's “aged”, A - G - E - D.
师：Let's take a look. Two points for you. Boy, you need to catch up.
生：“see”. It's “saw”, S - A - W.