八年级Unit9 When was it invented .教案

　　　　Unit9  When was it invented ?    

               SectionA (1a-1c)

I. Teaching objects

1.  Language goals

1） Words & expressions

invent-invention-inventor ; be used for 

2） Key sentences  (P68)

When was it/were they invented ?.

Who was it/were they invented by ?.                   

What is it/are they used for ?

2.  Ability goals

Enable the students to talk about inventions and their history . Improve students' listening ability. To train students' communicative competence. To train the Ss abilities of memory, observation , cooperation , creation…. 

3.  Emotion & attitude goals .

Enable the students to enjoy the pleasure and convenience of inventions .

4.  Strategy goals.

Learn from history .

5.  Culture awareness goals.

Know about inventions in different countries. Let the students know human beings are great .Chinese are as great as foreigners .

II. Teaching Key Points

1). When was / were … invented?     It was / They were invented in …

  Who was / were … invented by?   It was / They were invented by …

 2). topic: Inventions.

III. Teaching Difficulties

   Train the students to use the passive voice correctly.

Improve students' listening ability.

To train students' communicative competence.

IV. Teaching methods

      Task-based teaching  ; 

V. Learning methods

1). Set up six steps. It is presentation– words – pairwork – listening practice–Grammar - practice

2). Ask  the students to take part in class actively and develop their cooperation in the activities .

3)  Cooperative learning   ; role-play learning .

VI. Teaching tools

 a  recorder,   a  tape ,  the  multimedia

VII. Blackboard design

1. invent-invention-inventor ;

2. be used for doing

3. When was / were … invented?     It was / They were invented in …

  Who was / were … invented by?   It was / They were invented by …

4. be+done       (is, are) + done   一般现在时

was (were) + done一般过去时

VIII. Teaching procedures and ways

Step 1.Greetings and lead in .

   T: Good morning, boys and girls. Today we will learn a new unit about inventions. You can see inventions all around us, from TV to car, from food to clothing. We should say nobody can live without them. Don’t you think so? Can you imagine one day without inventions?

Ss: That’s impossible.

T: Yes, we live in a world of inventions. These inventions make our life easier and more comfortable. In this unit, we will learn some inventions and their history.

First, say the ancient China was very great in the world. It was famous for the four great inventions. Do you know the famous inventions in the ancient China? Guess Ss to talk about it. Show four great inventions’ pictures to Ss.

Second, Do you know Edison? Do you know what Edison was invented in his life? Get Ss to talk about Edison’s inventions.

Step 2. Guessing

Do you know the modern inventions in the world? They have changed our life more. Show some modern inventions’ pictures to Ss. Get Ss to guess what they are and when they were invented .

Step 3. Listening

Get Ss to listen to the tape, and number from one to five(Which kind of invention is in front, which kind of invention is in after).

Get Ss to listen to the tape again. Listen and match the inventions with the dates.

Step 4. Pairwork.

   Practice 1:  Get Ss to practice this conversation. And ask some students to practice in class.

--- When was the phone invented?  --- I think it was invented in 1876.   Practice 2: Show another modern inventions to Ss. For example, bike, camera … Ask some students to practice the conversation in class.

A: When was the phone invented?   B:  It was invented in 1876.

A:  Who was it invented by?       B:   It was invented by

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