英语人教版九年级全册unit

Unit6. When was it invented?

Section A (1a-1d)

Knowledge objects:

Key vocabulary: project,pleasure,zipper,daily,website,pioneer,

list,mention, have a point

Target language:

①I think the TV was invented before the car.

②---When was the telephone invented?

---I think it was invented in 1876.

③The pioneers of different inventions were listed there.

④But at that time, it wasn’t used widely.

Structure:Passive voice of the past tense.

Ability objects:

1.E nable the students to talk about the history of inventions using

the passive voice of the past tense.

2.T rain the students’ listening and speaking skills.

Moral objects: Many inventions have changed the world a lot. Teaching key and difficult points:

Learn to talk about the inventions by using the passive voice of the past tense.

Teaching procedures:

Step1. leading in

Have a free talk and then ask two students to talk about the pictures with the sentence What’s it used for?”

Step2. Listening practice

Show some flashes; listen carefully and match the years with the inventions.

Step3. Pair work

Then ask students to make a conversation :

A: When was the computer invented ?

B: It was invented in.... .

A: What’s it used for?

B: It is used for.......

Step4. Listening

Have students listen to the conversation in 2d and fill in the following the blanks.

1.What is the subject for their school project?

Small inventions that changed the world. 2.What kind of invention does Roy think of?

The zipper.

3.Why does Roy think it is a great invention?

Because it is often used in our daily lives. 4.Who and when was the zipper invented?

Whitcomb Judson in 1893.

5. When did the zipper become popular?

Around 1917.

Language points.

Read in groups

Step6. Role play the conversation.

Step7. Consolidation

Fill in the banks.

Paul:Hey Roy, the subject for my school________ is “Small ________that changed the world.” Can you help me _______an

invention?

Roy: My________! Let me think ... hmm ... I know! the______!

Paul: The zipper? Is it really such a great invention?

Roy: Think about how often it’s used in our _____lives. You can see zippers on dresses, trousers, shoes, bags ... almost everywhere! Paul: Well, you ___ seem to ___________...

Roy: Of course! I thought about it because I saw a ______ last week. The _______of different inventions were _____ there. For example, it __________that the zipper was invented by Whitcomb Judson in

1893. But at that time, it wasn’t used ______.

Paul: Really? So when did it become popular?

Roy: Around 1917.