人教版九年级全册Unit 6 When was it invented？ Section A 1a--1c 教案（共1课时，英文版）

人教版九年级英语 Unit 6 When was it invented Section A 1a-1c 教案
I. Teaching Objectives
1. Language Knowledge Objectives:
Students will learn key vocabulary related to inventions: invent, invention, inventor, be invented by, be used for.
Students will understand and use the passive voice in the simple past tense: was/were + past participle.
Students will practice asking and answering questions about the history of inventions.
2. Language Skills Objectives:
Students will improve their listening skills by identifying specific information in a conversation.
Students will enhance their speaking skills by discussing inventions and their uses.
Students will develop their ability to use the passive voice in context.
3. Emotional and Cultural Objectives:
Students will develop an interest in the history of inventions and their impact on daily life.
Students will appreciate the creativity and ingenuity of inventors.
II. Teaching Key Points and Difficult Points
1. Key Points:
Key vocabulary: invent, invention, inventor, be invented by, be used for.
Grammar: Passive voice in the simple past tense (was/were + past participle).
2. Difficult Points:
Correctly using the passive voice to describe when and by whom something was invented.
Differentiating between active and passive voice in sentences.
III. Teaching Methods
1. Task-Based Language Teaching (TBLT): Students will complete tasks such as matching inventions with their inventors and uses.
2. Communicative Language Teaching (CLT): Students will engage in pair work and group discussions to practice speaking.
3. Audio-Lingual Method: Students will listen to and repeat sentences to reinforce grammar and pronunciation.
IV. Teaching Aids
1. Multimedia projector and PowerPoint slides.
2. Audio recordings for listening activities.
3. Flashcards with pictures of inventions and their inventors.
4. Worksheets for pair and group activities.
V. Teaching Procedures
Step 1: Warm-Up (5 minutes)
Activity: Brainstorming
Show pictures of common inventions (e.g., light bulb, telephone, computer) and ask students:
What is this
Who invented it
When was it invented
Write students’ answers on the board and introduce the topic of the lesson: When was it invented
Step 2: Presentation (10 minutes)
Activity 1: Vocabulary Introduction
Teach key vocabulary: invent, invention, inventor, be invented by, be used for.
Use flashcards and examples to explain the meanings and usage of each word.
Example sentences:
The telephone was invented by Alexander Graham Bell.
The light bulb is used for lighting.
Activity 2: Grammar Focus
Introduce the passive voice in the simple past tense: was/were + past participle.
Provide examples and explain the structure:
The telephone was invented in 1876.
The computers were invented in the 20th century.
Highlight the difference between active and passive voice:
Active: Alexander Graham Bell invented the telephone.
Passive: The telephone was invented by Alexander Graham Bell.
Step 3: Practice (15 minutes)
Activity 1: Matching (1a)
Students match the inventions with the correct years and inventors.
Example:
Telephone – 1876 – Alexander Graham Bell
Light bulb – 1879 – Thomas Edison
Check answers as a class.
Activity 2: Listening (1b)
Play the audio recording for 1b. Students listen and match the inventions with their uses.
Example:
The telephone is used for communication.
The light bulb is used for lighting.
Discuss the answers and replay the audio if necessary.
Activity 3: Pair Work (1c)
Students work in pairs to ask and answer questions about the inventions.
Example:
A: When was the telephone invented
B: It was invented in 1876.
A: Who was it invented by
B: It was invented by Alexander Graham Bell.
Encourage students to use complete sentences and the passive voice.
Step 4: Production (10 minutes)
Activity: Group Discussion
Divide students into small groups and assign each group an invention (e.g., computer, airplane, television).
Students discuss:
When was it invented
Who invented it
What is it used for
Each group presents their findings to the class.
Step 5: Summary and Homework (5 minutes)
Summary:
Review key vocabulary and grammar points.
Emphasize the importance of inventions in daily life.
Homework:
Write a short paragraph about an invention using the passive voice.
Example: The airplane was invented by the Wright brothers in 1903. It is used for transportation.
VI. Teaching Reflection
This lesson successfully engaged students in learning about inventions and practicing the passive voice. The use of visuals and real-life examples helped students understand the vocabulary and grammar in context. The listening activity (1b) was effective in improving students’ listening skills, and the pair work (1c) encouraged active participation and speaking practice.
However, some students struggled with the passive voice structure, particularly with forming questions and answers correctly. In future lessons, I will provide more guided practice and use additional examples to reinforce the grammar point. Additionally, I noticed that some students were hesitant to speak during the group discussion. To address this, I will assign roles within groups to ensure everyone participates.
Overall, the lesson achieved its objectives, and students demonstrated a good understanding of the topic. I will continue to incorporate interactive activities and real-world connections to make learning more engaging and meaningful.