When was it invented ?
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When was it invented ?. Section A. Language Goals:. Grammar Focus:. Talk about the history of inventions. The passive voice. 1b. Listen and match the inventions with the dates. 1876 1885 1927 1971 1976. b. b. e. e. a. a. c. c. d. d. 1c. PAIRWORK. 1c. PAIRWORK.

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When was it invented

When was it invented ?

Section A


When was it invented

Language Goals:

Grammar Focus:

Talk about the history of inventions.

The passive voice.


When was it invented

1b

Listen and match the inventions

with the dates.

1876

1885

1927

1971

1976

b

b

e

e

a

a

c

c

d

d


When was it invented

1c

PAIRWORK


When was it invented

1c

PAIRWORK

When was the telephone invented ?

I think it was invented in 1876.


When was it invented

battery-operated

slippers

Julie Thompson

heated ice

cream scoop

Chelsea Lanmon

Jayce Coziar and Jamie Ellsworth

shoes with adjustable heels


When was it invented

2a

Listen and number the inventions in the order that you hear.

2

3

1


When was it invented

2b

PAIRWORK

Who was it / were they invented by ?

It was/ They were invented by

Chelsea Lanmon.


When was it invented

3b

PAIRWORK

What do you think is the most helpful

invention?

I think the most helpful invention is

the light bulb.

Why is that?

Well, it gives people more time to work

and play every day.


When was it invented

am (is, are) + done

was (were) + done

{

The passive voice

英语中动词有主动语态和被动语态两种语态. 主动语

态表示主语是动作的执行者,被动语态表示主语是动作的

承受者, 在被动语态中动作的执行者有时用by短语表示

出来.

被动语态的构成:

助动词be+ (及物动词的) 过去分词

一般现在时

一般过去时


When was it invented

The passive voice

被动语态的用法:

  • 不知动作执行者时,常用被动语态.

  • eg. My bike was stolen yesterday.

  • This car is made in American.

  • 2. 不必要说出动作执行者时,常用.

  • eg. Rome was not built in a day.

  • 3. 为了突出强调动作的承受者时,常用被动语态.

  • eg. Thousands of beaches are polluted (污染).


When was it invented

The passive voice.

主动语态变为被动语态的步骤:

  • 把原主动句中的宾语转换为被动语态的主语.

  • 2.把动词改为被动形式,即 “be + 过去分词”. 注意 be

  • 动词要按新的主语的人称和数进行变化,时态要和原来

  • 的主动语态的时态保持一致.

  • 3. 原来主动语态句中的主语,如果需要,就放在by后面

  • 以它的宾格形式出现. 如果没有必要就可以省略.其他的

  • 成分 (定语,状语) 不变, 句式也不能变.


When was it invented

The passive voice

主动语态变被动语态的结构图:

Bell invented the telephone in 1876.

The telephone was invented by Bell in 1876.

主语

谓语动词过去时

宾语

时间状语

宾语

时间状语

主语

谓语动词的过去分词


When was it invented

The passive voice

主动语态改被动语态:

the telephone

in 1876.

Bell

invented

was

by


When was it invented

GoodBye!


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