Unit 4 Amazing Plants and Animals 英文教案 2025-2026学年人教版（2024）八年级英语上册

Unit 4 Amazing Plants and Animals 第1课时　Secion A (1a-1d) Teaching Objectives 1. Language Competence Vocabulary: Master adjectives (beautiful, big, fast, heavy, large, long, old, small, tall, short) and their superlative forms (largest, fastest, heaviest, oldest, tallest). Listening: Identify organisms by superlative descriptions (1b-1c). Speaking: Ask and answer about organisms’ superlative traits (1d: What’s amazing about...? It’s the...). 2. Cultural Awareness Recognize the uniqueness of nature (e.g., blue whale as the heaviest animal). 3. Thinking Quality Analytical Thinking: Extract superlative details from listening. Logical Thinking: Structure superlative sentences correctly. 4. Learning Ability Collaborate in group discussions (1a, 1d) and apply listening strategies (prediction, scanning). Teaching Key Points Master superlative adjective forms and usage. Complete listening tasks by capturing superlative descriptions. Teaching Difficulties Forming superlatives correctly (e.g., heaviest vs. more heavy; irregular forms like oldest). Using superlatives naturally in speaking. Teaching Procedures Step 1: Warm-up & Vocabulary Activation (5 mins) Visual Prompt: Show 1a’s four images (moss, blue whale, redwood tree, cheetah). Ask: “What do you notice about them? Use adjectives!” (Elicit: small, big, tall, fast). Superlative Introduction: Introduce superlatives with a demo: “A cheetah is fast, but it’s the FASTEST land animal!” Write fast → fastest on the board. Step 2: 1a — Describe & Classify (10 mins) Group Task: Divide students into 4 groups. Each group describes one organism using 1a’s adjectives, then guesses its superlative trait: Moss: small → oldest (some mosses are very old). Blue whale: big/heavy → heaviest. Redwood tree: tall/large → tallest/largest. Cheetah: fast → fastest. Feedback & Correction: Share group ideas. Highlight superlative rules: Short adjectives: -est (fast→fastest, tall→tallest, heavy→heaviest). Long adjectives: most + adj. (e.g., most beautiful, though not in 1a). Irregular: old→oldest. Step 3: Listening — 1b-1c (15 mins) 1b: Pre-listening Prediction Look at 1a’s images. Ask: “Which organism will be mentioned first? What superlative might describe it?” While-listening: 1b (Ordering) Play the recording. Students number the organisms in the order they hear them. Answers: (Example order, adjust based on actual audio) Blue whale (heaviest) Cheetah (fastest) Redwood tree (tallest/largest) Moss (oldest) 1c: Matching Superlatives Listen again. Match organisms to superlatives (1c): Moss → D (oldest) Blue whale → A (heaviest) Redwood tree → B (largest) + F (tallest) Cheetah → E (fastest) Explain tricky matches (e.g., redwood is both largest and tallest). Step 4: Speaking — 1d (12 mins) Demo Dialogue: Teacher-student example: T: “What’s amazing about the blue whale?” S: “It’s the heaviest animal in the world.” Emphasize question structure (What’s amazing about...?) and superlative responses. Group Practice: Students work in pairs. Each pair chooses one organism from 1a and creates a dialogue: A: “What’s amazing about the cheetah?” B: “It’s the fastest land animal!” Class Sharing: Invite 2–3 pairs to perform. Provide feedback on superlative accuracy and fluency. Step 5: Summary & Homework (3 mins) Superlative Recap: Write core rules on the board: -est for short adjectives: fast→fastest, tall→tallest, heavy→heaviest. Irregular: old→oldest. Use the before superlatives: the fastest. Homework: Research: Find one plant/animal and write 2 superlative sentences about it (e.g., The giraffe is the tallest land animal.). Speaking: Practice 1d dialogues with family, using new examples. V. Blackboard Design Blackboard Design What can plants and animals do? ▍1a Organisms & Adjectives: - Moss: small → **oldest** (D) - Blue whale: big/heavy → **heaviest** (A) - Redwood tree: tall/large → **tallest** (F) + **largest** (B) - Cheetah: fast → **fastest** (E) ▍Superlative Rules: - Short adj. + -est: fast→fastest, tall→tallest, heavy→heaviest - Irregular: old→oldest - Use “the”: the fastest, the oldest ▍1d Dialogue Model: — What’s amazing about the blue whale? — It’s the heaviest animal in the world. Teaching Reflection Strengths: Linked vocabulary to real-world organisms, making learning meaningful. Layered listening tasks (prediction→ordering→matching) built comprehension step by step. Weaknesses & Improvements: Superlative form errors (e.g., more fast) may occur. Add error correction drills (e.g., “Is it more fast or faster?”). Shy students may struggle in speaking. Provide sentence frames (e.g., “What’s amazing about ___? It’s the ___.”). 第2课时　Pronunciation&（2a-2d） Teaching Objectives 1. Language Competence Vocabulary: Master bamboo, folding fan, symbol, fastest-growing, useful and superlative usage. Listening: Capture details about bamboo’s culture, growth, and uses (2a). Reading: Extract information from the dialogue (2b) and organize it into a mind map (2c). Speaking: Role-play the dialogue (2d) and create a tour guide conversation (2e) about bamboo. 2. Cultural Awareness Recognize bamboo as a symbol of goodness, perseverance, and its practical importance in daily life. 3. Thinking Quality Analytical Thinking: Categorize bamboo’s attributes (culture, growth, uses) using a mind map. Creative Thinking: Design a tour guide dialogue to showcase bamboo’s value. 4. Learning Ability Use contextual learning for vocabulary and collaborative learning for speaking tasks. Teaching Key Points Master bamboo-related vocabulary and superlative structures. Understand the dialogue and organize information into a mind map. Teaching Difficulties Correctly using superlative structures (one of the + 最高级 + plural nouns). Explaining bamboo’s cultural symbolism in English. Teaching Procedures Step 1: Pronunciation Warm-up (5 mins) Group Reading & Pattern Discovery: Students read and repeat words from 1 (e.g., /ei/: whale, rain, stay → add play; /ai/: mice, fly, high → add sky). Discuss letter-sound connections (e.g., ai/ay = /ei/, y/igh = /ai/). Phonetic Game: Teacher says a word; students identify its sound group (e.g., join → /ɔɪ/ group). Step 2: Cultural Introduction (3 mins) Visual Stimulus: Show images of folding fans and bamboo forests. Ask: “What do you know about bamboo in Chinese culture?” (Elicit: strength, modesty). Vocabulary Introduction: Teach bamboo, folding fan, symbol with examples: “Bamboo is a symbol of goodness in Chinese paintings.” Step 3: Listening Comprehension (10 mins) 2a: Pre-listening Prediction Predict topics: culture, growth, uses of bamboo. 2a: While-listening Play the recording; students fill in blanks: a symbol of goodness the Bamboo Sea fastest-growing most useful Post-listening Vocabulary Focus Explain one of the + 最高级 + plural nouns (e.g., one of the fastest-growing plants). Step 4: Reading & Analysis (8 mins) 2b: Comprehension Questions Students read the dialogue and answer: A painting of bamboo. It’s a symbol of goodness. In Sichuan (the Bamboo Sea). Build houses, make tools and instruments. Yes—she asks many questions (e.g., “Really? Like what?”). Cultural Extension Introduce more symbolism: perseverance (never giving up), modesty (being humble). Step 5: Mind-mapping (10 mins) 2c: Group Collaboration Groups complete the mind map with information from 2a: Culture: a symbol of goodness Growth: almost 1m/day (fastest-growing) Location: Bamboo Sea in Sichuan Uses: build houses, make tools/instruments Food: bamboo shoots (for pandas and people) Creative Addition Each group adds one extra fact (e.g., Bamboo can make paper). Step 6: Speaking Practice (17 mins) 2d: Role-play Students practice the dialogue in pairs, focusing on intonation (curiosity, explanation). 2e: Tour Guide Dialogue Scenario Setup: Students role-play a tour guide (A) and foreign tourist (B). Provide sentence frames: A: Welcome to the Bamboo Sea! Bamboo is... in Chinese culture. B: Interesting! Can it be used for...? A: Yes! It’s also used to... Group Presentations: Groups perform their dialogues; class evaluates cultural accuracy and language fluency. Step 7: Summary & Homework (5 mins) Summary: Recap vocabulary, superlative structures, and bamboo’s cultural/practical value. Homework: Basic: Draw and label the mind map in English. Advanced: Write a short essay “Why Bamboo is Special” (culture + uses). Extension: Interview a family member about bamboo’s uses and report back in English. Blackboard Design Bamboo: Culture & Nature ▍Core Vocabulary & Structures: - Nouns: bamboo, folding fan, symbol - Adjectives: fastest-growing, most useful - Sentences: ✔️ It’s a symbol of goodness in Chinese culture. ✔️ Bamboo is one of the fastest-growing plants in the world. ▍Mind Map (2c): - Culture: symbol of goodness - Growth: ~1m/day (fastest-growing) - Location: Bamboo Sea, Sichuan - Uses: houses, tools, instruments - Food: bamboo shoots (pandas & people) ▍Dialogue Frames (2e): A: Welcome to...! Bamboo means... in China. B: Cool! Can it...? A: Yes! It can also...! Teaching Reflection Strengths Cultural Integration: Links language to Chinese cultural symbolism, enhancing engagement. Skill Layering: From listening/reading to speaking/writing, building competence step-by-step. Improvements Superlative Errors: Reinforce plural nouns after one of the + 最高级 (e.g., plants, not plant). Cultural Explanation: Simplify abstract terms (e.g., perseverance = never giving up) for clarity. 第3课时　Grammar Focus Teaching Objectives 1. Language Competence Grammar: Form superlatives (regular: -est/most; irregular: good→best). Writing: Complete sentences (3b) and a passage (3c) with correct superlatives. 2. Cultural Awareness Understand ginkgo trees as a symbol of hope and longevity in Chinese culture. 3. Thinking Quality Inductive Thinking: Derive superlative rules from 3a’s sentences. Logical Thinking: Structure a passage using superlatives to describe ginkgo trees. 4. Learning Ability Use context clues to learn grammar and collaborate in peer review. Teaching Key Points Superlative formation: -est (short adjectives), most (long adjectives), and irregular forms. Using the before superlatives and identifying comparison contexts (in the world, of all...). Teaching Difficulties Distinguishing between -est and most for 2-syllable adjectives (e.g., common→most common vs. heavy→heaviest). Remembering irregular superlatives (good→best, bad→worst). Teaching Procedures Step 1: Warm-up & Cultural Hook (5 mins) Visual Stimulus: Show images of a blue whale, cheetah, and bamboo. Ask: “What’s the largest animal? The fastest runner? The most useful plant?” Elicit superlative responses (e.g., The blue whale is the largest animal.). Cultural Teaser: Introduce ginkgo trees: “This tree is a symbol of hope in China. Let’s learn why!” Step 2: Inductive Grammar Learning (3a, 15 mins) Analyze 3a Sentences: Students read 3a and group sentences by superlative type: -est: largest, heaviest, fastest (short/2-syllable adjectives). most + adj.: most useful, most interesting (long adjectives). Irregular: best (from good). Summarize Rules: Teacher guides students to conclude: Adjective Type Formation Examples Short (1-2 syllables) +est large→largest, fast→fastest, heavy→heaviest Long (3+ syllables) most + adj. useful→most useful, interesting→most interesting Irregular Memorize good→best, bad→worst, far→farthest Emphasize: Use “the” before superlatives and comparison contexts (e.g., in the world). Step 3: Guided Practice (3b, 12 mins) Demo with 3b-1: “Among all animals, I love pandas the best. I think they are the cutest (cute) animals in the world.” Explain: “cutest” (short adj. +est), “the” before superlative, comparison scope “among all animals.” Independent Completion: Students complete 3b, focusing on: 2. most beautiful (long adj. → most + adj.) most colourful (2-syllable + -ful → most + adj.) highest (short adj. +est) largest, heaviest (2-syllable heavy → y→i + est) Peer Feedback: Students exchange papers to check for: Correct superlative form (-est/most). Proper use of the. Step 4: Cultural Passage & Application (3c, 15 mins) Ginkgo Cultural Background: Share: “Ginkgo trees are living fossils! They symbolize hope and long life in China.” Passage Analysis: Read 3c’s passage and identify gaps. Discuss word choices: ancient→most ancient (long adj. → most + adj.) popular→most popular (long adj.) common→most common (2-syllable → most + adj.) beautiful→most beautiful (long adj.) good→best (irregular) Fill-in & Discuss: Students complete the passage. Then, discuss: “Why is the ginkgo tree important in Chinese culture?” Step 5: Summary & Homework (3 mins) Grammar Recap: Write core rules on the board: Short/2-syllable: +est (e.g., heaviest). Long/2-syllable + -ful: most + adj. (e.g., most colourful). Irregular: good→best. Homework: Grammar: Write 5 sentences using superlatives to describe your favorite animal/plant. Culture: Research one Chinese cultural symbol (e.g., panda, peony) and write a superlative-rich paragraph about it. Blackboard Design Grammar Focus: Superlative Adjectives ▍1. Formation Rules: - Short/2-syllable: +est → largest, fastest, heaviest - Long/2-syllable + -ful: most + adj. → most useful, most colourful - Irregular: good→best, bad→worst ▍2. 3b Key Sentences: - Pandas are the cutest animals. - The lotus is the most beautiful flower. ▍3. 3c Cultural Passage (Ginkgo): - most ancient living trees - most popular tree - most common in China - most beautiful activity: walk under ginkgo trees Teaching Reflection Strengths: Inductive Learning: Students discover rules, deepening understanding. Cultural Integration: Ginkgo trees connect grammar to Chinese culture, boosting engagement. Improvements: 2-Syllable Confusion: Add drills for 2-syllable adjectives (e.g., happy→happiest vs. common→most common). Irregular Forms: Use a mnemonic (e.g., Good→Best, Bad→Worst, Far→Farthest) for memorization. 第4课时 Section B（1a-1e） Teaching Objectives 1. Language Competence Vocabulary: Master hard-working, important, amazing, pollination, ecosystem and use them in context. Reading: Extract key details (bees’ work, importance, problems, facts) to complete 1c’s mind map. 2. Cultural Awareness Understand the vital role of bees in human survival (e.g., 80% of plants depend on pollination). 3. Thinking Quality Analytical Thinking: Break down text information into categories (importance, facts, problems). Critical Thinking: Evaluate solutions to protect bees and discuss human-nature connections. 4. Learning Ability Use reading strategies (skimming for main ideas, scanning for details) and collaborate in discussions. Teaching Key Points Extract and organize information about bees (1b-1c). Discuss the ecological connection between humans, plants, and animals (1d-1f). Teaching Difficulties Explaining complex ecological concepts (e.g., pollination) in simple English. Connecting textual knowledge to real-life environmental actions. Teaching Procedures Step 1: Warm-up & Prediction (1a, 5 mins) Visual & Linguistic Prompt: Show the title “How are plants and animals connected with us?” and images of bees, flowers, and supermarkets. Ask: “What do you think the text is about? How are bees related to supermarkets?” (Elicit: Bees pollinate plants, so no bees = no fruits/vegetables.) Vocabulary Preview: Introduce pollination (bees carry pollen) and ecosystem (interconnected nature). Step 2: Reading & Information Extraction (1b-1c, 20 mins) 1b: Skim for Adjectives Students read the text quickly and underline adjectives describing bees: hard-working, important, amazing, interesting. 1c: Scan for Details & Mind Map Students 精读 the text to fill in 1c’s mind map: Importance: Greatest work: pollination (visit 50–100 flowers per trip). Help: 80% of plants grow because of them. Interesting Facts: Work together to build homes (honeycomb). Communicate via “dance” to share food locations. Problem: Number is dropping. Demo & Feedback: Teacher models one branch (e.g., Importance: pollination), then students complete the rest. Step 3: Critical Discussion (1d, 10 mins) Group Questions: Divide students into groups to discuss: Alternative title: “Bees: Our Silent Heroes” (or similar, focusing on importance). Other bee facts: Bees make honey, sting only when threatened. Human-insect connections: Ants aerate soil; butterflies pollinate too. Share & Summarize: Groups present ideas. Teacher highlights: “All living things depend on each other—we need to protect them!” Step 4: Creative Writing & Extension (1e-1f, 10 mins) 1e: Extend the Text Students write a paragraph about “How to protect bees” (e.g., plant flowers, avoid pesticides). Provide sentence frames: “To protect bees, we can... because...” 1f: Human-Nature Connections Pair work: Discuss examples of human-nature interdependence (e.g., Birds eat pests → protect crops; Butterflies pollinate → flowers grow). Share examples: “In Guangdong, big trees house birds—tourists visit, so the town thrives.” Step 5: Summary & Homework (5 mins) Text Recap: Summarize bees’ role: Pollination → food growth → human survival. Their numbers drop → we must help. Homework: Writing: Write 3 sentences about “Why bees are amazing” using 1b’s adjectives. Action: Plant a flower (or draw one) to “help bees” and explain why in English. Blackboard Design How are plants and animals connected with us? ▍Mind Map: Bees - Importance: ✔️ Pollination (50–100 flowers/trip) ✔️ 80% of plants grow because of them - Interesting Facts: ✔️ Work together (honeycomb) ✔️ Dance to communicate - Problem: ✔️ Number is dropping - How to Help: ✔️ Plant flowers, avoid pesticides (from 1e) ▍Key Adjectives (1b): hard-working, important, amazing, interesting Teaching Reflection Strengths: Ecological Relevance: Connects text to real-world issues (bee decline), raising environmental awareness. Skill Integration: Combines reading, writing, and speaking to deepen understanding. Improvements: Complex Concepts: Simplify pollination with visuals (e.g., a bee carrying pollen). Shy Speakers: Provide sentence frames for 1d/1f (e.g., “I think... because...”). 第5课时 Section B（2a-3c） Teaching Objectives 1. Language Competence Vocabulary: Classify words (2a) and form nouns with suffixes (2b: act→action, good→goodness). Use words correctly in context (2c: disappointed, appear, store) and passages (2d: ecosystem, protect). Reading: Extract blue whale facts (weight, habitat, diet, lifespan, role) from 3a. Writing: Rewrite 3a in first person (3b) and extend the passage (3c). 2. Cultural Awareness Recognize blue whales’ vital role in the ocean ecosystem and the need for protection. 3. Thinking Quality Analytical Thinking: Classify words (2a) and extract structured info (3a’s table). Creative Thinking: Rewrite text from a blue whale’s perspective (3b). 4. Learning Ability Use dictionaries for word formation (2b) and collaborate in peer editing (3c). Teaching Key Points Master noun suffixes and context-based vocabulary use. Extract and organize blue whale facts. Teaching Difficulties Choosing correct suffixes (e.g., connect→connection vs. communicate→communication). Writing coherently in first person (3b) and extending the passage (3c). Teaching Procedures Step 1: Vocabulary Classification (2a, 8 mins) Group Competition: Students circle the “odd one out” in 2a and explain reasons: weight (others: habits/sizes: habit, height, size). enjoy (others: feelings: joy, happiness, fun). smart (others: negative feelings: angry, disappointed, sad). bread (others: verbs: appear, look, seem). honey (others: drinks: milk, juice, water). Feedback & Vocabulary Link: Highlight word categories (nouns, verbs, adjectives) to prepare for 2b. Step 2: Noun Formation with Suffixes (2b, 12 mins) Suffix Introduction: Teach suffixes: -ance: act→action, appear→appearance -tion: imagine→imagination, communicate→communication -ness: good→goodness, kind→kindness -ty: real→reality, important→importance Dictionary Practice: Students form nouns using 2b’s words and dictionaries. Correct as a class: action 2. goodness 3. kindness 4. appearance reality 6. imagination 7. communication 8. popularity protection 10. importance Rule Summary: Write suffixes on the board with examples (e.g., -ance/-tion for verbs → nouns). Step 3: Contextual Vocabulary (2c-2d, 15 mins) 2c: Sentence Completion Individual Work: Students complete 2c with disappointed, appear, store, weigh, imagine. Answers: disappointed (flowers died) appear (mushrooms grow after rain) store (bamboo baskets for food) weigh (luggage weight) imagine (life without pets) Peer Check & Discussion: Pairs check answers. Discuss: “Why is ‘disappointed’ correct here?” (feelings about loss). 2d: Passage Completion Ecosystem Context: Students read 2d about frogs and fill in blanks with planet, protect, land, however, importance. Answers: planet’s (ecosystem), protect (farms), However (contrast), importance (nature), land (live on). Ecological Link: Connect to 3a: “Like frogs, blue whales also help the ecosystem—let’s learn how!” Step 4: Reading & Information Extraction (3a, 10 mins) Pre-reading: Predict blue whale facts: “What do you know about blue whales? Size? Habitat?” While-reading: Students read 3a and complete the table: Category Fact Weight Up to 200 tons Where they live All oceans except the Arctic Food Tiny ocean creatures (4 tons/day) How long they live Up to 90 years Role in ecosystem Create a lively ecosystem Post-reading: Discuss: “Why must we protect blue whales?” (They maintain ocean balance.) Step 5: Creative Writing (3b-3c, 12 mins) 3b: First-Person Rewrite Demo & Scaffolding: Teacher models the first sentence: “Hello everyone! My name is Billy the Blue Whale. I am the largest and heaviest animal on Earth.” Students rewrite 3a in first person, focusing on I statements (e.g., “I weigh up to 200 tons...”). Peer Sharing: Pairs share rewrites, checking for first-person consistency. 3c: Passage Extension Creative Prompt: Students extend the passage with: “Why am I important? How can humans help protect me?” Provide sentence frames: “I need your help because... You can protect me by...” Peer Editing: Pairs exchange passages, checking for: Correct vocabulary use. Logical flow (importance → protection). Step 6: Summary & Homework (5 mins) Recap: Vocabulary: Suffixes, context words. Reading/Writing: Blue whale facts, first-person writing. Homework: Vocabulary: Write 5 sentences using 2b’s nouns. Ecology: Research one endangered animal and write 3 sentences about its protection (using superlatives from prior lessons). Blackboard Design Vocabulary & Ecosystem Awareness ▍2b Noun Suffixes: -ance: action, appearance -tion: imagination, communication -ness: goodness, kindness -ty: reality, importance ▍3a Blue Whale Facts: Weight: 200 tons Habitat: All oceans except Arctic Food: Tiny creatures (4 tons/day) Lifespan: 90 years Role: Creates lively ecosystem ▍3b First-Person Starter: “Hello! I’m Billy the Blue Whale. I weigh 200 tons...” Teaching Reflection Strengths: Vocabulary Depth: Combines classification, word formation, and context use for retention. Eco-Connection: Links vocabulary to real-world ecological issues (blue whales, frogs), fostering awareness. Improvements: Suffix Confusion: Some students may mix suffixes (e.g., connect→connectance). Provide a suffix “family tree” (verb → noun suffix). Writing Fluency: Struggling writers need more scaffolding (e.g., sentence banks for 3c). 第 1 页 共 20 页 学科网（北京）股份有限公司 $$