Unit 7 Section A 2a-2d 教案 2024-2025学年人教版英语八年级下册

教学设计 课题 Unit 7 What's the highest mountain in the world-Section A-2a-2d 课时 1 教学目标 Language Ability: Grasp functional patterns like "What's the...in the world?" and "It's...meters/kilometers...", master reading strategies (skimming/scanning) for factual texts. Cultural Awareness: Explore global geographical wonders (e.g., the Caspian Sea, the Nile) and environmental protection awareness. Thinking Capacity: Analyze data logically (e.g., compare depths/lengths) and infer implicit information from texts. Learning Ability: Summarize key points in note form and practice oral expression through role-play. 重难点 Key: Use numerical expressions (e.g., "1,025 meters deep") and comparative/superlative degrees in context. Difficult: Differentiate between measurement orders (e.g., "length width height") and avoid article errors in superlative structures (e.g., "the deepest lake" vs. "deepest in Asia"). Apply "as...as" comparatives correctly (e.g., "as long as the Nile"). 教学环节 学习活动 新课教学 一、课程导入(Warming - up & Revision) Teacher: Good morning/afternoon, class! Before we start today's new lesson, let's do a quick revision. Yesterday, we learned about some amazing geographical features of the world. Who can tell me the highest mountain in the world? Student 1: Qomolangma! Teacher: Exactly! And how high is it? Student 2: It's 8,844.43 meters high. Teacher: Great. Now, what about the longest river? Student 3: The Nile. It's about 6,671 kilometers long. Teacher: Well done. And the deepest salt lake? Student 4: The Caspian Sea. It's 1,025 meters deep. Teacher: Perfect. And the biggest desert? Student 5: The Sahara. It's about 9,600,000 square kilometers in size. Teacher: Excellent. You all remember very well. Now, today we are going to learn more interesting facts about these and other geographical wonders. 二、词汇讲解(Vocabulary Presentation) Teacher: First, let's look at some new words and phrases in this part. (Writes on the blackboard: population, Asia, feel free, as far as I know) Let's read them together. Students: (Read after the teacher) population, Asia, feel free, as far as I know. Teacher: Now, “population” means the number of people who live in a particular area. For example, “The population of our city is very large.” Try to make a sentence with “population”. Student 6: The population of China is over 1.4 billion. Teacher: Great sentence. “Asia” is one of the seven continents on the earth. Most of us live in Asia. Can you name some countries in Asia? Student 7: China, Japan, South Korea, India... Teacher: Right. A lot of countries. “Feel free” means you can do something without being worried or restricted. For example, “Feel free to ask me any questions in class.” Now, you try. Student 8: Feel free to come to my house if you need help. Teacher: Good. And “as far as I know” is used when you are telling someone what you know about a subject, and you think there may be more that you don't know. For example, “As far as I know, he is a very hard - working student.” Make a sentence with it. Student 9: As far as I know, she likes reading books very much. Teacher: Well done. Now that we know these new words, let's move on to activity 2a. 三、活动 2a(Listening for specific information) Teacher: (Shows activity 2a on the screen) In this activity, you will hear a conversation between two people. They are talking about some geographical facts. First, look at the pictures and the sentences quickly. Try to predict what the conversation might be about. Students: (Look at the screen) Teacher: Now, listen carefully. I will play the recording for the first time. Just listen and get a general idea of the conversation. (Plays the recording) Teacher: What was the conversation mainly about? Who can tell me? Student 10: They were talking about Qomolangma and the Sahara. Teacher: Right. Now, listen again. This time, number the sentences in the order you hear them. (Plays the recording again) Teacher: Stop. Let's check the answers. What's the first sentence you heard? Student 11: It's “China has the biggest population in the world.” Teacher: So, we number it 1. And the next one? Student 12: “Qomolangma is higher than any other mountain in the world.” Number 2. Teacher: Correct. Keep going. Student 13: “The Sahara is the biggest desert in the world.” Number 3. Teacher: Good. And the last one? Student 14: “The Caspian Sea is the deepest of all the salt lakes.” Number 4. Teacher: Well done, everyone. You listened very carefully. Now, let's move on to activity 2b. This time, we will listen to the conversation again and fill in the blanks. 四、活动 2b(Listening and filling in the blanks) Teacher: Before we listen, look at the blanks in the sentences. Try to think about what kind of words might be missing. (Shows activity 2b on the screen) Students: (Look at the sentences) Teacher: Now, listen carefully. I will play the recording for the first time. Just listen and see if you can catch some of the missing words. (Plays the recording) Teacher: Now, listen again. This time, fill in the blanks with the exact words you hear. (Plays the recording again) Teacher: Stop. Let's check the answers. For the first sentence “China has the _ population in the world.” What did you fill in? Student 15: biggest Teacher: Right. And “Qomolangma is _ than any other mountain in the world.” Student 16: higher Teacher: Correct. “The Sahara is about _ square kilometers in size.” Student 17: 9,600,000 Teacher: Well done. “The Caspian Sea is _ of all the salt lakes.” Student 18: the deepest Teacher: Perfect. Now, let's read these sentences together to make sure we understand them well. Students: (Read the sentences together) China has the biggest population in the world. Qomolangma is higher than any other mountain in the world. The Sahara is about 9,600,000 square kilometers in size. The Caspian Sea is the deepest of all the salt lakes. Teacher: Very good. You can see that we are still using the superlative forms of adjectives to describe these geographical features. Now, let's have a short discussion. Do you know why it's important to know these facts about our world? Talk in pairs for a minute. Students: (Discuss in pairs) Teacher: Stop. Who wants to share your ideas? Student 19: Knowing these facts can help us understand our world better, like how big and amazing it is. Teacher: That's a great point. What else? Student 20: It can also help us in our geography study and learn about different places. Teacher: Right. Now, let's move on to the reading part, activity 2d. 五、活动 2d(Role - play the conversation) Teacher: First, read the conversation in 2d by yourselves. Try to understand the main idea. (Students read the conversation silently) Teacher: Now, who can tell me what the conversation is about? Student 21: It's about a student asking the teacher some questions about geographical features, like the Amazon River and the population of China. Teacher: Exactly. Now, let's look at some important language points in this conversation. “As far as I know, there are no man - made objects as big as this.” Here, “man - made” means made by people. Can you give some examples of man - made objects? Student 22: Buildings, bridges, cars... Teacher: Right. And “This elephant weighs many times more than this panda.” We use “weigh” to talk about how heavy something is. Now, let's practice. I will give you some things, and you make sentences using “weigh”. A book and a pencil. Student 23: This book weighs many times more than this pencil. Teacher: Good. A dog and a cat. Student 24: This dog weighs more than this cat. Teacher: Great. Now, let's role - play this conversation. I want you to work in pairs. One person is the student and the other is the teacher. Try to read it as naturally as possible. (Students start role - playing, and the teacher walks around to listen and offer help) Teacher: Stop. Which pair wants to come to the front and show us your role - play? Pair 1: Student A: Excuse me, Mr./Mrs. [Teacher's name], can you tell me what the longest river in the world is? Student B: Sure. As far as I know, the Nile is the longest river in the world. Student A: And what about the biggest ocean? Student B: The Pacific Ocean is the biggest ocean. Student A: How about the population of our country? Student B: China has a very large population. It's over 1.4 billion. Teacher: Great job, you two! Your pronunciation is clear, and you really understood the conversation. Let's give them a round of applause. (Students clap) Now, let's think about this. If you could travel to one of these amazing geographical places we learned today, which one would you choose and why? Talk in groups of four for a few minutes. Students: (Talk in groups) Teacher: Stop. Which group wants to share your ideas? Group 1: We would choose to go to Qomolangma. Because it's the highest mountain in the world, and we want to see the beautiful view from the top and feel the challenge of climbing it. Teacher: That sounds exciting. What about other groups? Group 2: We want to go to the Sahara Desert. We want to see the huge sand dunes and experience the special desert environment. Teacher: Very interesting. It seems you all have great ideas. 六、课堂总结(Summary) Teacher: Class, let's summarize what we have learned today. We learned some new words and phrases, such as “population”, “Asia”, “feel free”, and “as far as I know”. We also listened to some information about geographical features and filled in the blanks. And we role - played a conversation about asking and answering questions related to these features. Remember, our world is full of amazing places, and learning about them in English can not only improve our language skills but also broaden our horizons. 七、布置作业(Homework) Teacher: For your homework today, I want you to write a short passage about your favorite geographical feature. You can choose one from what we learned today or another one you know. Describe its characteristics, why you like it, and some interesting facts about it. Also, don't forget to use the words and expressions we learned in class. And review today's lesson to be ready for a quick quiz in the next class. That's all for today. Class is over. Goodbye, everyone! Students: Goodbye, teacher! 学科网(北京)股份有限公司 学科网(北京)股份有限公司 学科网(北京)股份有限公司 $$