2026人教版八下Unit 4 The Wonders of Nature各课时英文教案(表格式,5课时)

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2026人教版八下Unit 4 The Wonders of Nature各课时英文教案(表格式,5课时)

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Unit 4 The Wonders of Nature 第一课时 Section A(1a–2d)
Topic Unit 4 The Wonders of Nature Section A 1a-1d
Teaching Content Talk about Geographical terms of Natural Wonders. Learn the highest level of usage and practice, and master the ways to express different the natural wonders.
Lesson Type:Lecture Lesson Period:1 Total Periods
Teaching Material Analysis:This discourse aims to guide students to explore and understand extraordinary natural sites, broaden their international perspectives, and enhance their awareness of global geographical diversity, falling under the theme of "Human and Nature". Through this learning process, students will master the use of superlative and specific data to describe geographical features.
Student Learning Situation Analysis: The students have been exposed to the basic usage of comparative and superlative adjectives, and have a preliminary knowledge of world geography, and can describe simple facts.
Core Literacy (Teaching) Objectives: 1. Language Ability: Master deep-sea terminology and core sentence patterns to complete listening tasks and engage in simple conversations. 2. Thinking Quality: Through classification and induction, logical analysis, improve the ability of information sorting and dialectical expression. 3. Cultural Awareness: Experience the grandeur and mystery of the ocean, cultivate a sense of reverence for nature and protection of the ocean, and enhance the national pride brought by China's deep-sea exploration achievements. 4. Learning Ability:Master strategies like chart annotation and listening keyword extraction to enhance collaborative learning and language expression skills.
Key Teaching Points:Master and apply sentence patterns like 'What's the highest/deepest... How high/deep... ' to answer questions about natural wonders.
Difficult Teaching Points:Accurate pronunciation and expression of large numbers; systematically and comprehensively using language for recommendations in tasks.
Teaching and Learning Methods:Teaching Methods: Situational Teaching Method, Task-based Teaching Method; Learning Methods: Listening-Speaking Practice, Cooperative Inquiry Method.
Teaching Preparation:Multimedia courseware, listening audio, pictures and core vocabulary cards for situational teaching. Preview the pre-class preparation section of this period in Learning Method Vision
Teaching Process Design Revision
Step 1 Lead-in Play a short montage video of natural wonders. Ask: What can you see What do you know about it Introduce the core question of this lesson: What is amazing about the natural wonders Step 2 Work on la Picture-text Matching: Quickly match images with their names to familiarize students with target vocabulary. Prediction and Focus: Ask: How much do you know about them Guide students to focus on features like 'highest' and 'deepest'. Step 3 Work on 1b and 1c 1.Listening 1b: First listen to complete the table, focusing on feature descriptions like 'highest' and 'largest'. 2.Listening 1c: Second listen to fill in the data. The teacher explains the rules for reading large numbers and demonstrates key figures. 3. Deep thinking: Ask questions about details in the listening text: Why might Qomolangma still be growing (Guide scientific thinking) Step 4 Work on ld Students work in pairs to mimic the 1D example, practicing Q&A about the four natural wonders covered in this lesson. 2. The teacher circulates to provide necessary guidance. Step 5 Work on 2a the teacher guides students to examine the chart in Figure 2a, clarifying the task requirements:read the four information items (A-D) on the left and locate their corresponding positions in the detailed chart on the right, then annotate them. Students read and annotate independently while the teacher provides guidance during the process. Step 6 Work on 2b 1. The teacher first guides students to review the three topic options in 2b, clarifying the listening task: listen to the audio and check the topics discussed in the dialogue (why people are researching the deep sea, what deep-sea animals are like, how everyone should protect the deep sea). 2. Check the answers Step 7 Work on 2c 1. The teacher guides students to read the sentences in 2c, observe their structures and the context of the blanks, and predict the possible words or phrases to fill in, thereby developing their listening prediction skills. 2. Play the audio again. Students refine their answers, while the teacher guides them to ensure sentence coherence and grammatical accuracy, and highlights key listening information. 3. Check the answers and discuss the advice. Step 8 Work on 2d 1.The teacher presents a 2D dialogue template to guide students in reading the dialogue, clarifying that it focuses on 'the appearance of the deep-sea floor and the importance of the deep sea.' Students are asked to circle and underline key sentence structures in the dialogue (What is the bottom of the deep sea like It's...; Why is the deep sea important to us It...). 2.The teacher provides a detailed explanation of the core sentence patterns in Section 2d, using examples from Section 2c's listening material to illustrate their usage and contextual applications. 3.Divide students into small groups of 2-3 members. Using the 2D dialogue template, they will create dialogues by integrating vocabulary, sentence patterns, and listening materials from the lesson. Step 9 Summary Recap today's lesson, these wonders are amazing. They teach us awe(敬畏). Let's be not only explorers but also protectors(保护者). Step 10 Homework Present to your family in English a natural wonder learned in this lesson (name, characteristics, data). Research a "world record" of a natural wonder in China (such as the Yangtze River) and record it in 1-2 English sentences. 【Class Exercises】 根据情况添加 【Blackboard Design】 Unit 4 The Wonders of Nature 第一课时 Section A(1a–2d) Key Question: What is amazing about them 核心句型: -What's the highest/largest... in the world -It's Mount Qomolangma / the Sahara Desert. -How high/large is it -It's ... metres high. / It's about ... sq km. 数字读法: 8,848.86 → eight thousand, eight hundred and forty-eight point eight six 【Homework Assignment】 Finish the corresponding after-class exercises of this period. Students complete the exercises of this period in Learning Method Vision and are required to finish them earnestly to consolidate the learned knowledge.
Teaching Reflection
(北京)股份有限公司Unit 4 The Wonders of Nature Second Period Section A(3a-3d)
Topic Unit 4 The Wonders of Nature Second Period Section A(3a-3d)
Teaching Content Learn about knowledge related to rivers, including their length, the countries they are located in and their importance.
Lesson Type:Lecture Lesson Period:1 Total Periods
Teaching Material Analysis:This lesson is a reading-focused class following the first listening-speaking period, focusing on "the wonders of nature". Taking the 3a reading passage as the core, with 3b-3d exercises to deepen understanding, it guides students to master reading skills, grasp key information about natural wonders, connects listening-speaking with reading, and lays a foundation for subsequent writing.
Student Learning Situation Analysis:Based on the first period, students master basic vocabulary about natural wonders. They can understand simple conversations but struggle with long reading passages, lacking skills in extracting details and summarizing main ideas, needing guidance to improve reading comprehension.
Core Literacy (Teaching) Objectives: 1. Language Ability: Master new vocabulary and key sentences in 3a, understand the reading passage, finish 3b-3d exercises, and express views on natural wonders with learned language. 2. Thinking Quality: Improve reading and logical analysis ability through skimming, scanning and detail reading. 3. Cultural Awareness: Deepen the understanding of natural wonders, cultivate love for nature and strengthen environmental protection awareness. 4. Learning Ability: Master basic reading skills and develop the habit of independent reading and cooperative discussion.
Key Teaching Points: Master new vocabulary and key sentences in the passage, grasp the main idea and details of 3a, and master basic reading skills.
Difficult Teaching Points: Understand complex sentences flexibly, infer implied meaning, and apply learned language to express views on natural wonders accurately.
Teaching and Learning Methods:Teaching Methods: Reading Guidance Method, Task-based Teaching Method; Learning Methods: Skimming, Scanning, Cooperative Discussion.
Teaching Preparation:Multimedia courseware, 3a reading materials, new vocabulary cards and question lists for guided reading. Preview the pre-class preparation section of this period in Learning Method Vision
Teaching Process Design Revision
Step 1 Lead-in 1. Show some pictures of famous rivers like the Yangtze River, the Yellow River, and the Nile River. Ask students, “What do you know about these rivers ” 2. Encourage them to say more about the rivers and lead to the topic. Step 2 Work on 3a 1. Ask students to read the conversation silently and underline the three rivers mentioned. 2. Check the answers: the Yellow River, the Yangtze River, the NileRiver. 3. Read the conversation aloud and try to understand the meaning of each sentence. Step 3 Work on 3b 1. Discuss: What do you know about the Yellow River and the NileRiver (Class sharing) 2. Complete: Fill in the table with information from the conversation. 3. Check: Review the answers together. 4. Retell: Describe the rivers based on the table. Step 4 Work on 3c 1. Play the audio of the conversation and ask students to listen carefully. 2. Divide students into pairs and ask them to role-play the conversation. 3. Monitor and assist while circulating the classroom. 4. Invite volunteer pairs to present their role-play in front of the class. Step 5 Work on 3d 1. Pair students. Role-play as Yaming or Ella to continue talking about China's other geographical features. 2. Use the dialogue framework to discuss mountains, rivers, plateaus, etc. 3. Guide pairs to create their own conversations. 4. Ask volunteers to perform. Step 6 Summary Recap the key phrases and sentence structures learnt in this lesson, such as the names of rivers, their lengths, countries, and importance. Step 7 Homework Have students write a short paragraph about another geographical feature in China and its importance. 【Class Exercises】 根据句意,用括号中所给单词的适当形式填空。 1. The summer vacation is the longest (long) holiday in a year. 2. The Sahara is one of the biggest deserts (desert) in the world. 3. Reading books is important for the development (development (develop) of our language skills. 4. The Chinese civilization (civilization) has a long history of more than 5,000 years. So we should learn more. 5. Niagara Falls is one of the most famous waterfalls (waterfall) in the world. 【Blackboard Design】 Unit 4 The Wonders of Nature 第二课时Section A(3a–3d) 单词: waterfall, civilization, means, development , desert 句型: The Yangtze River is the longest river in China. 【Homework Assignment】 Finish the corresponding after-class exercises of this period. Students complete the exercises of this period in Learning Method Vision and are required to finish them earnestly to consolidate the learned knowledge.
Teaching Reflection
(北京)股份有限公司Unit 4 The Wonders of Nature Third Period Section A Grammar Focus(4a-4d)
Topic Unit 4 The Wonders of Nature Third Period Section A Grammar Focus(4a-4d)
Teaching Content The application of the superlative form of adjectives or adverbs in the context of natural wonders.
Lesson Type:Lecture Lesson Period:1 Total Periods
Teaching Material Analysis:This lesson is a grammar-focused class, focusing on Grammar Focus and 4a-4d exercises. It sorts out and consolidates the key sentence patterns and grammar about natural wonders learned in the previous two periods, takes targeted practice as the core, guides students to master and apply the target grammar flexibly, strengthens language accuracy, and lays a foundation for subsequent comprehensive language output.
Student Learning Situation Analysis:Based on the first two periods, students have mastered nature-related vocabulary and basic sentences, but lack systematic grammar induction. They often make mistakes in flexible application, needing targeted guidance and intensive practice to improve grammar application ability.
Core Literacy (Teaching) Objectives: 1. Language Ability: Master the core grammar structures in Grammar Focus, finish 4a-4d exercises proficiently, and use the target grammar to express views on natural wonders correctly. 2. Thinking Quality: Sort out grammar logic through induction and practice, and improve the ability of analyzing and applying grammar. 3. Cultural Awareness: Form the habit of standard English expression and understand the importance of grammar in smooth communication about natural themes. 4. Learning Ability: Master basic grammar learning methods and develop the habit of active induction and independent practice.
Key Teaching Points: Master the core grammar structures in Grammar Focus, finish 4a-4d practice tasks, and use the target grammar to make simple expressions about natural wonders.
Difficult Teaching Points:Flexibly apply the target grammar in specific contexts and avoid common grammar mistakes.
Teaching and Learning Methods:Teaching Methods: Grammar Explanation Method, Task-based Teaching Method; Learning Methods: Practice Method, Independent Induction Method.
Teaching Preparation:Multimedia courseware, grammar explanation materials, 4a-4d practice sheets and example sentence cards. Preview the pre-class preparation section of this period in Learning Method Vision
Teaching Process Design Revision
Step 1 Lead- in 1. Show pictures of natural wonders (e. g. the Sahara Desert, the Mariana Trench, Victoria Falls). Have students describe them with superlatives (e. g. The Sahara is the largest desert in the world.). 2. Write students’ answers on the board. Introduce the topic:“Superlatives in Natural Wonders”. Step 2 Work on 4a 1. Ask students to read the sentences in the table. Circle superlative adjectives and underline superlative adverbs. 2. Guide students to summarize superlative formation rules. 3. Practise with more examples. Have students convert them into superlative forms. Step 3 Work on 4b 1. Ask students to fill in the blanks with the numbers provided in brackets. 2. Check the answers:5,895; 25,768; four thousand; three hundred and thirty-seven thousand. 3. Ask students to discuss their interpretations of these natural wonders. Step 4 Work on 4c 1. Read adjectives in the box aloud. Guide students to write their superlative forms. 2. Ask students to complete the passage with these superlative forms. 3. Check the answers: most amazing; close; louder; far; most amazing. 4. Read the passage together. Ask:“Why is visiting Victoria Falls a magical experience ”(Deepen understanding of text and superlative usage.) Step 5 Work on 4d 1. Task: Explain how to formulate comparative questions about places using the superlative form (e. g. What is the highest mountain in China / Which desert is larger, the Taklimakan or the Gobi ). 2. Student Pair Work: Students practice in pairs, asking and answering questions. The teacher circulates and offers guidance (e. g. correcting grammar, supplementing geographical knowledge). 3. Class Presentation: Invite 2——3 pairs to present their dialogue to the whole class. Step 6 Summary Summarize key points: 1. Formation rules of superlative adjectives/ adverbs. 2. How to use superlatives to describe natural wonders (geographical features+ personal experiences). Step 7 Homework 1. Describe 3 natural wonders with superlatives (e. g. The Amazon River is the second longest river in the world. ). 2. Research and list 3 irregular superlative forms (e. g.far→farthest;good→best;bad→worst). 【Class Exercises】 根据句意,用所给单词的适当形式填空。 1. The blue whale is the largest (large) animal in the world. 2. This is the most delicious (delicious) cake I' ve ever eaten. 3. Mount Qomolangma is the highest (high) mountain on Earth. 4. The Sahara Desert is the biggest(big) desert in the world. 5. The Pacific Ocean is the deepest (deep) ocean on the planet. 【Blackboard Design】 Unit 4 The Wonders of Nature 第三课时Section A Grammar Focus(4a–4d) 单词: cubic, mile, pool 句型:1. A: Where is the deepest point in the ocean B: It is in the Mariana Trench. 2. Mount Qomolangma is one of the greatest wonders of the world,and it is still growing taller. 3. The Yangtze River travels the farthest in China and is about6,300 kilometres long. 【Homework Assignment】 Finish the corresponding after-class exercises of this period. Students complete the exercises of this period in Learning Method Vision and are required to finish them earnestly to consolidate the learned knowledge.
Teaching Reflection
(北京)股份有限公司Unit 4 The Wonders of Nature Fourth Period Section B(1a-1e)
Topic Fourth Period Section B(1a-1e)
Teaching Content Through the passage Reaching New Heights, students will learn about the climbing history and geographical information of Mount Qomolangma, as well as the significance of human exploration of nature.
Lesson Type:Lecture Lesson Period:1 Total Periods
Teaching Material Analysis:This lesson is a listening-speaking class focusing on 1a-1e. It expands nature-related vocabulary based on previous periods, takes 1b-1d listening practice and 1e oral dialogue as the core, guides students to listen for details about natural wonders and talk freely, strengthens listening-speaking ability, and lays a foundation for subsequent reading and writing.
Student Learning Situation Analysis:With the foundation of the first three periods, students master relevant vocabulary and grammar. They can have simple conversations about natural wonders but are weak in listening for details and fluent oral expression, needing more situational practice.
Core Literacy (Teaching) Objectives: 1. Language Ability: Master new vocabulary about natural wonders, understand listening materials and capture key details, and use learned language to finish 1e dialogue and talk about natural wonders fluently. 2. Thinking Quality: Improve listening for details and language organization ability through targeted practice. 3. Cultural Awareness: Deepen love for natural wonders and strengthen the awareness of protecting nature. 4. Learning Ability: Develop active listening and speaking habits, and improve cooperative communication ability.
Key Teaching Points:Master new nature-related vocabulary, finish 1a-1d listening tasks and capture details, and use target sentence patterns to complete 1e oral practice.
Difficult Teaching Points: Listen for specific details accurately and express views on natural wonders fluently in 1e dialogue.
Teaching and Learning Methods:Teaching Methods: Situational Teaching Method, Task-based Teaching Method; Learning Methods: Listening-Speaking Practice, Cooperative Communication Method.
Teaching Preparation:Multimedia courseware, listening audio, natural wonder pictures and 1e oral practice situational materials. Preview the pre-class preparation section of this period in Learning Method Vision
Teaching Process Design Revision
Step 1 Lead-in 1. Show pictures of Mount Qomolangma and ask, “What do you know about Mount Qomolangma Share with your partner.”(e. g. height,climbing difficulty, stories of Chinese climbing teams). 2. Invite 2——3 groups to share, then introduce the topic“ExploringNature: The Story of Qomolangma”. Step 2 Work on la 1. Organize pair discussions: What do you know about MountQomolangma (Prompt: height, geographical location, climbing history,etc.). 2. Randomly select students to share, and the teacher supplements key information (e. g. Mount Qomolangma is the world's highest mountain, with an altitude of about 8,848.86 metres). Step 3 Work on 1b 1. Explain the scanning skill: Read the text quickly to locate key information like numbers, names, and dates (refer to the“Scanning”prompt box on the right). 2. Students read the article quickly and complete the information matching in 1b. 3. Check the answers: Death Road;8,600 metres; 1960;8,848.86metres. Step 4 Work on 1c 1. Set Purpose: Review the article and ensure the questions are understood. 2. Independent Work: Students reread to locate and document answers with evidence. 3. Peer Check: In pairs, students compare and justify their answers using the text. 4. Class Review: Conduct a whole-class discussion to share answers. Step 5 Work on ld 1. Model how to evaluate and correct the first statement. 2. Complete the task individually by rereading the text. 3. Compare and discuss answers in pairs, focusing on corrections. 4. Share and review answers. Step 6 Work on le 1. Discuss the open-ended questions in le in groups. 2. Each group selects a representative to share opinions, and the teacher guides students to deepen discussions by combining text details. Step 7 Summary Review today's key content, focusing on students' ability to apply superlative adjectives in descriptions. Step 8 Homework Collect the story of a Chinese mountaineer and share it in the next class. 【Class Exercises】 根据汉语意思完成句子,每空一词。 1.登山者必须会处理多变的天气。 Climbers must be able to deal with changeable weather. 2.如果你每天一点点地学习英语,你会进步很多。 If you study English bit by bit every day, you will improve a lot. 3.通过每天练习,米娅在学校的数学竞赛中成功夺冠。 With practice every day, Mia reached the top successfully in the school's maths competition. 4.消防员们冒着生命危险从着火的大楼里救出了那个小女孩。 The firefighters risked their lives to save the little girl from the burning building. 【Blackboard Design】 Unit 4 The Wonders of Nature 第四课时 Section B(1a-1e) 单词和短语: climber, northern, survive, condition, degree, changeable,death, above, shoulder, bit by bit, successfully, risk,curiosity, explorer, simply 句型:1. To most people, Mount Qomolangma is one of the greatest wonders of the world. 2. Bit by bit, the climbers pulled themselves up, and they made it past the Second Step. 【Homework Assignment】 Finish the corresponding after-class exercises of this period. Students complete the exercises of this period in Learning Method Vision and are required to finish them earnestly to consolidate the learned knowledge.
Teaching Reflection
(北京)股份有限公司Unit 4 The Wonders of Nature Fifth Period Section B(2a-Reflecting)
Topic Unit 4 The Wonders of Nature Fifth Period Section B(2a-Reflecting)
Teaching Content Read the advertisement text about the Great Barrier Reef and extract numerical figures and descriptive words; rewrite the notes on Qinghai Lake into complete sentences; create advertisements for natural wonders.
Lesson Type:Lecture Lesson Period:1 Total Periods
Teaching Material Analysis:This lesson focuses on 2a-Reflecting, integrating reading and unit reflection. Taking the 2a reading passage about natural wonders as the core, it guides students to sort out key information, and combines reflection tasks to review unit knowledge, strengthening comprehensive language application and helping students summarize learning experiences and feelings about nature.
Student Learning Situation Analysis:Based on the first four periods, students have mastered the unit’s vocabulary, grammar and basic skills. They can finish simple reading tasks but are weak in sorting out reading information and reflecting on learning, needing guidance to improve summary and reflection abilities.
Core Literacy (Teaching) Objectives: 1. Language Ability: Master key information in the 2a passage, sort out its main idea, and use learned language to finish reflection tasks and express views on natural wonders and learning experiences. 2. Thinking Quality: Improve reading induction and logical summary ability through information sorting and reflection. 3. Cultural Awareness: Deepen love for natural wonders, strengthen environmental protection awareness and form a positive attitude. 4. Learning Ability: Develop the habit of summarizing and reflecting, and improve the ability of integrating unit knowledge.
Key Teaching Points:Master the core content of the 2a passage, sort out key information, and finish unit reflection tasks with learned language.
Difficult Teaching Points:Sort out reading information logically and express personal learning reflection and views on natural wonders accurately.
Teaching and Learning Methods:Teaching Methods: Reading Guidance Method, Task-based Teaching Method; Learning Methods: Intensive Reading, Summary and Reflection Method.
Teaching Preparation:Multimedia courseware, 2a reading materials, information sorting lists and unit reflection task sheets. Preview the pre-class preparation section of this period in Learning Method Vision
Teaching Process Design Revision
Step 1 Lead- in 1. Show pictures of Lake Baikal, the Great Barrier Reef, and Qinghai Lake. Ask:“What do you know about these natural wonders Share 1-2 facts with your partner.” 2. Invite 2-3 groups to share. The teacher supplements:“Today we' ll learn how to describe these wonders with precise words and structures.” Step 2 Work on 2a 1. Review and Define: Read aloud and understand the words from the box. 2. Match and Check: Complete the activity individually, then review answers as a class. Step 3 Work on 2b 1. The teacher models:“How deep is the Mariana Trench It's about11,000 metres deep.” 2. Students use words(long, high, deep, low, fast, soon) to create 6how- questions (e. g. How long is the Yangtze River ). 3. Groups review sentences. 1-2 creative sentences are shared. Step 4 Work on 2c 1. Complete and Review: Complete the passage with the correct forms of the words in the box. Then, review answers and explain the reasoning. 2. Teach Vocabulary: Demonstrate the usage of key words (located,freshwater, type, attract, curious, traveller) with examples. Step 5 Work on 3a 1. Skim: What is the ad mainly about (Discuss best answer) 2. Scan and Complete: Reread and finish the specific task the teacher assigned individually. 3. Check: Review answers together. Step 6 Work on 3b 1. Discuss prior knowledge of Qinghai Lake. 2. Introduce the task: using notes to write sentences. 3. Students use the notes in 3b to write complete sentences individually. 4. In pairs, students compare and discuss their sentences. 5. Share sentences with the class and provide corrective feedback. Step 7 Work on 3c 1. Task: Write an ad for Qinghai Lake or another natural wonder. 2. Plan: Choose a wonder and list key details (What, Where,Features, Reasons). 3. Share: Exchange ideas in pairs for feedback. 4. Model: Demonstrate persuasive language (e. g. “Imagine ...”,“Don't miss...”). 5. Present: Volunteers read their ads to the class. Step 8 Work on 4a,4b and 4c 1. Divide into groups. Choose a wonder (e. g. Amazon Rainforest,Victoria Falls) and complete: 4a: Research and record information (name, location and size, plants and animals, special facts). 4b: Create a poster(catchy title, clear info, visuals, creative decorations). 4c: Present posters(using numbers, comparatives/ superlatives. e. g. The Amazon Rainforest is the largest rainforest on Earth. ). 2. The teacher circulates to guide, emphasizing“accuracy + visual appeal.” Step 9 Work on Reflecting Have students reflect on the reflection questions, then guide them through answering. Step 10 Summary Summarize the key words and phrases of this period. Step 11 Homework Write a short essay: My Favourite Natural Wonder. 【Class Exercises】 根据句意,用方框中所给单词的适当形式填空。 curious, travel, nature, include, alive 1. My uncle is a traveller —— he has visited many countries. He has rich travel experience. 2. We are happy to find the old tree in the park is over 100 years old but still alive . 3. This book includes many interesting stories. It's for children. 4. The little boy is curious about why the sky is blue. His father is explaining it to him patiently. 5. It's natural for children to ask questions about the world. It's good for their development. 【Blackboard Design】 Unit 4 The Wonders of Nature 第五课时 Section B(2a– Reflecting) 单词: risky, southern, curious, traveller, natural, coast, include,sand, alive 句型:1. How far is it from your home to school 2. How heavy is a blue whale 3. How large is your country 4. How often do you exercise 【Homework Assignment】 Finish the corresponding after-class exercises of this period. Students complete the exercises of this period in Learning Method Vision and are required to finish them earnestly to consolidate the learned knowledge.
Teaching Reflection
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