人教版九年级英语Unit 6 When was it invented Section A 2a-2d教案

人教版九年级英语 Unit 6 When was it invented Section A 2a-2d 教案 I. Teaching Objectives Knowledge Objectives: Students will learn the structure and usage of the passive voice in the past tense (e.g., "It was invented in..."). Students will acquire key vocabulary related to inventions (e.g., invent, invention, inventor, style, project, website). Students will understand the historical context of common inventions (e.g., tea, basketball). Ability Objectives: Students will practice listening for specific information (dates, inventors, purposes). Students will engage in dialogues to discuss inventions using the passive voice. Students will improve critical thinking by analyzing the impact of inventions on daily life. Emotional Objectives: Students will develop curiosity about the history of inventions. Students will appreciate the role of creativity and innovation in human progress. II. Key and Difficult Points Key Points: Structure of the passive voice: was/were + past participle. Vocabulary related to inventions and their historical contexts. Difficult Points: Correctly using irregular past participles (e.g., invented, drunk, thrown). Differentiating between active and passive voice in context. III. Teaching Resources Textbook, PPT slides, audio clips (2a–2b), realia (e.g., tea leaves, a basketball), whiteboard, worksheets. IV. Teaching Procedures Step 1: Warm-Up & Lead-In (5 minutes) Activity: Show pictures of inventions (e.g., lightbulb, telephone, basketball) and ask: "What are these When do you think they were invented " Introduce the topic: "Today, we’ll explore the history of inventions using the passive voice." Purpose: Activate prior knowledge and generate interest in the lesson. Step 2: Pre-Listening (2a) (8 minutes) Activity: Vocabulary Preview: Teach key words: inventor, style, project, website. Use sentences like: "Thomas Edison was the inventor of the lightbulb." Prediction Task: Ask students to predict the order of inventions in 2a (tea, shoes with heels, zipper). Purpose: Prepare students for the listening task and reduce comprehension barriers. Step 3: Listening Practice (2a–2b) (12 minutes) Activity: First Listening (2a): Play the audio. Students number the inventions in the order they hear. Check answers and discuss: "Which invention is the oldest " Second Listening (2b): Play the audio again. Students fill in the chart with details (inventor, date, purpose). Highlight passive voice sentences: "Tea was invented by accident." "Basketball was invented by James Naismith." Purpose: Develop listening skills for specific details and reinforce passive voice structures. Step 4: Dialogue Practice (2c–2d) (10 minutes) Activity: Role-Play (2d): Divide students into pairs. Assign roles (Paul and Roy). Practice the dialogue about the history of tea and basketball. Encourage students to substitute inventions (e.g., "When was the computer invented "). Group Discussion: Ask: "Which invention do you think is the most useful Why " Purpose: Enh ... ...