Unit 6 Changing for the seasonsPart C（课件+素材）-2026-2027学年人教PEP版英语四年级上册

What do you usually do on Christmas day? I put on my shorts and t shirt and go to the beach. Welcome, merry Christmas. Thank you. Where is your coat? It's very cold outside. I don't have a coat, but I have a warm sweater. You can go to the beach on Christmas day. yes, but it's cool at night. I need to wear sweater. 一边是寒冷的白色圣诞，但同时地球的另一边却是炎炎夏日可以开沙滩派对。今天跟大家简单分享为何南北半球的春夏秋冬对调了，12月冬天过圣诞，7 8月夏天放暑假，这个季节更替周期对于我们这些北半球长大的人实属正常不过，但众所周知，地球另一边的四季却是完全相反了，南半球的12月是炎炎夏日，7 8月就是寒冷的冬季。要明白这个现象的成因，就先要从四季的形成说起。季节的变化是因为地球自转轴的角度相对于围绕太阳公转的轨道出现倾斜而导致。简单而言，就是地球主轴亲测了23.5度，而北极点固定地指向北极星。这个稳定的倾斜角度配合地球公转轨道，就产生了稳定的四季变化周期。以北半球为例，每年7 8月夏天时，由于地球倾斜，北半球受光相对直接而且较多，所以造成日长夜短，气温炎热。当12月到1月冬天时，如图中所见，北半球能够接收到的太阳光大幅减少，而且日照角度变得较斜，造成日短夜长，气温变冷。按夏季、冬季的形成原理，在这个时候的南半球被太阳照射就相反的会较多，较直接形成日长夜短的夏天。同理，当7 8月北半球是日长夜短的夏天时，南半球就是日短夜长的冬天，这就是南北半球夏季、冬季对调的原因。至于在春天和秋天及3月和9月时，地球面向太阳的倾侧角度减少，而令南北半球的受光程度太之相弱，所以春天、秋天对调其实是跟太阳无关。这主要因为地球本身的环境和能量转变而造成。入春是为之前的冬天解冻和释放水分，而入秋就是因为之前的夏天环境，所以春秋对调，事实上是基于之前的夏冬对调了，这个大概就是南北半球季节对调的原因。 Bird is cold and snowy. You need a warm hat? Yes, I have one. Thank you. Okay, let's go. Here we go. Here we go. Here we go. There is, go . see . s . here . we go . on. Here comes the spring with the flowers in the crown comes the spring with, here comes a spring to bring . new life . es ring with. Here comes a spring with. In the . ground comes a spring. but in the sky. here comes the spring . to bring. Here . we . go . to see is. Comes the summer with the kids having fun. Comes summer with warm breeze. Here comes the summer with the trees so Green. Here comes . the . summer . from sun. Mr. here . comes . the summer . comes mm. See and . free. we . go in . cooler. Here comes the fall with the light falling down comes the fall with the wind. Here comes the . four with the leaves. 陷阱color . here comes . off . with cooler。Comes fly down, comes up four . with the . wind flow we love. See is . you. we . go . see . the. Here comes the winter with the freezing cold. Comes winter with days getting short. Here comes the winter . logger. Here comes the . winter . free the cold. Here . comes . the . winter . the . oner. See you. See, so . see . you . go see. So the E. See, project, make a travel card. One the children are talking about seasons, listen, take and match. Hi陈杰。Which city do you like? I like carbon. It's so much fun there in winter. Which season do you like? mike? I like spring. It's warm and nice. Oh, go to the spring city in every season that is like spring. Part C Unit 6 Changing for the seasons 1 Enjoy a song Look and say What season is it? What colour is it? spring → green summer → blue autumn → orange winter → white Project: Make a travel card summer autumn winter spring 1 The children are talking about seasons. Listen, tick and match. What can you see? Look and say 2 Which are Mike’s clothes? Which are Chen Jie’s? Look and choose. cap coat dress shirt socks sweater 3 Talk in groups. 4 Make a travel card. Then share it in class. Self-check 1. I can talk about what people wear in different seasons. 2. l can tell people about my favourite season. 3. l can talk about how seasons change our daily lives. 4. I can read and spell words with “wh”. Welcome! Merry Christmas! Thank you! Where is your coat? It’s very cold outside. I don’t have a coat, but I have a warm sweater. 1. Which season is it now in China? 2. Does Koala have a coat? What does Koala have? It’s winter. It’s very cold. No, he doesn’t. He has a warm sweater. Read and find I put on my shorts and T-shirt and go to the beach. 3. What does Koala usually do on Christmas Day? He puts on his shorts and T-shirt and goes to the beach. It’s cool at night. He needs to wear a sweater. Yes, but it’s cool at night. I need to wear a sweater. 询问对方在某节日的活动： — What do you (+频度副词) +do on/ at+节日名称? — I/ We (+频度副词) +动词原形 (+其他). e.g. — What do you do at the Mid-Autumn Festival? 你们在中秋节做什么？ — We often eat mooncakes. 我们经常吃月饼。 4. Which season is it now in Australia? A. Summer. B. Winter. 5. What does Zip usually do on Christmas Day? Have a guess! 6. It’s cold and snowy. What else does Koala need? Brrr! It’s cold and snowy. You need a warm hat. Yes, I have one. Thank you. A. Warm gloves. B. A warm hat. 7. What does Koala find outside of Zip’s house? What does it look like? Who made it? Oh look! It’s a snowman. Yes, it looks like you. He finds a snowman. It looks like Koala. Maybe Zip made it. 8. What does Koala do then? What do the snowmen love? He gives his hat to the snowman. Snowmen love cold weather. He looks cold. He needs a warm hat. Ha! Ha! Snowmen love cold weather. Welcome! Merry Christmas! Thank you! Where is your coat? It’s very cold outside. I don’t have a coat, But I have a warm sweater. 1 Listen, read and imitate 2 What do you usually do on Christmas Day? I put on my shorts and T-shirt and go to the beach. 辨析put on与wear： put on意为“穿上；戴上”，强调穿或戴的动作 wear意为“穿；戴”，强调穿或戴的状态 22 3 You can go to the beach on Christmas Day? Yes, but it’s cool at night. I need to wear a sweater. need to+动词原形 需要做某事 4 Brrr! It’s cold and snowy. You need a warm hat. Yes, I have one. Thank you. OK. Let’s go. （感叹词）呵 用法：表示感觉寒冷。 5 Oh look! It’s a snowman. Yes, it looks like you. look like 看起来像 look 在这里作系动词，意为“看起来” 6 He looks cold. He needs a warm hat. Ha! Ha! Snowmen love cold weather. Work in pairs and role-play the story in front of the class. Evaluations (评价标准) 1. Pronunciation (发音清晰) 2. Intonation (语调正确) 3. Performance (表演生动) 4. Emotions (感情丰富) Role-play Why does he wear a T-shirt on Christmas? Because the weather is very hot. Because he is in the southern hemisphere ... Think and talk Watch and know more Watch and know more What can you learn from the story? 大家出门旅行时，不要忘记查询目的地的天气，合理安排自己的着装哦！ Think and say Thank you! null 37511.87 $Hello, happy friends. Are you ready to learn? I'm Sarah. And today we're going to learn little more about the seasons. And to do this, we're going to learn what the hemisphere are. We all made that there are four seasons . in a year, spring, summer. autumn and winter, and the each season has different weather conditions. In winter, it's very cold. In spring, temperature start to rise and flowers starts to blossom. In summer, it's extremely hot, and in autumn, temperatures start to decrease and leaves start falling from the trees. But did you know that not all the seasons happened at the same time all over over the world? nope. So let's find out why. Plant earth has an access, which is an imaginary line whether I spins around itself in a rotational movement. This access isn't top straight. It's actually leaning. And depending on the month of the year, there are areas that receive more ways than others. Our planets is divided into two parts IT, separated by an imaginary line called the equity. And this imaginary line separates the planet into two hemisphere, the northern hemisphere and the southern hemisphere. Now lets see how a planets . moves around sun IT . is what we call a translation movement. As you can see, the sun hits here, but not equally around the whole world. Let's stop the planet. stop. In this position, the northern hemisphere has more sun raise because of the access inclined, and that means that we're in summer and new. Well, in the southern hemisphere it's winter. I prefer summer. But what happens if the earth rotates on the other side of the sun? Well, this means that the southern hemisphere will receive more sunrise, meaning that in the northern hemisphere winter and in the southern is, here is summer. It's easy, easy, huh? Goodbye, happy friends. See you next time, and I hope you'll always ready to learn. goodbye. Oh, look, it's a snowman. Yes, IT looks like you. He looks cold. He needs a warm hat. Ha ha, snowman love cold weather.