九年級英語《When was it invented?》課件

一、教學目標：

1. 語言知識目標：

1) 能掌握以下單詞： heel, scoop, electricity, style, project, pleasure, zipper, daily, website, pioneer, list, mention

能掌握以下句型：

①  —When was the telephone invented?

—I think it was invented in 1876.

②  —What are they used for?

—They are used for seeing at night.

2) 能談論物品被髮明的時間、發明者，表達某發明的用途。

2. 情感態度價值觀目標：

瞭解一些近現代發明的時間及用途，激發自己熱愛發明的'情感。培養想象力，善於觀察事物。面對難題，用積極的態度去解決，發揮想象力，認識世界，改造世界。

二、教學重難點

1. 教學重點：

1) 本課時的單詞、詞組和句型，學習運用一般過去時態的被動語態。

2) 學會詢問發明時間及用途的基本句型：

—When was the telephone invented?

—I think it was invented in 1876.

—What are they used for?

—They are used for seeing at night.

2. 教學難點：

運用一般過去時態的被動語態來討論發明的發明時間及用途。

三、教學過程

I. Warming up

1. 展示一些近代發明的圖片與近代發明的發明者，讓學生們將圖片與發明者相連。

T: Do you know what these inventions are?

S1: It’s a car.

S2: It’s a telephone.

S3: It’s a television.

T: Do you know who these inventors are?

S1: Karl Benz

S2: Alexander Bell

S3: J. L. Baird

Let Ss match the inventions and the inventors.

Ⅱ. Presentation

引導學生們學習一般過去時態的被動語態結構。

讓學生們看大屏幕的如果愛和發明者的圖片,並將句子改爲被動語態。

如：

T: Karl Benz invented the first car in 1885.

The first car was invented (by Karl Benz) in 1885.

Ⅲ. Talking

1. Look at the pictures in 1a. Discuss with your group, in what order do you think they were invented? Try to number them [1-4].

2. Ss discuss with their partners and number the pictures.

3. Talking about the inventions:

A: I think the TV was invented before the car.

B: Well, I think the TV was invented after the TV.

Ⅳ. Listening (1b)

1. T: Tell Ss look at the pictures and years on the left.

2. Play the recording for the Ss to listen.

3. Ss listen to the conversation and try to match the invention with the proper year.

4. Play the recording again.

5. Check the answers.

Ⅴ. Pair work (1c)

1. Ss try to remember the invention and the year.

2. Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.

3. Let some pairs ask and answer in pairs.

e.g. A: When was the telephone invented?

B: I think it was invented in 1876.

…

Ⅵ. Learning the new words & Listening

Look at the pictures then learn the new words.

Work on 2a:

T: Tell Ss they will hear some interesting inventions.

1. Look at the pictures in 2a. Discuss the things what they are used for.

2. Play the recording for the Ss to listen and number the pictures.

3. Play the recording again to check the answers.

Work on 2b:

1. Let Ss read the chart below. Explain some main sentences for the Ss. Make sure they know what to do.

2. Play the recording for the Ss to fill in the blanks.

3. Play the recording again to check the answers.

4. Listen again and fill in the blanks.

Ⅶ. Pair work (2c)

1. Tell Ss to make conversations using the information in 2b. Make a model for the Ss.

A: What are the shoes with special heels used for?

B: They are used for changing the style of the shoes.

2. Let some Ss make conversations using the information in 2b.

3. See which group does the best.

Ⅷ. Role-play(2d)

1. Read the conversations and Let Ss read after the teacher.

2. Explain some new words and main points in the conversation.

3. Ask Ss to role-play the conversation in groups.

X. Language points

1. Well, you do seem to have a point…

have a point 有道理

e.g. I admit (that) you have a point.  我承認你有理。

2. They are used for seeing in the dark.

be used for doing sth.表示“被用來 做某事”。 相當於be used to do sth.

e.g. This computer is used to control all the machines.

這臺電腦是用來控制所有機器的。

Do you know what this tool is used for?

你知道這工具是用於做什麼的？

3. Think about how often it’s used in our daily lives.

think about 表示“考慮，想起”

e.g. He is thinking about travelling in the summer holidays.

他正在考慮暑假旅遊的事。

She was thinking about her childhood days.

她正回想她的童年時期。