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Unit_9Section_A1a-2c 讲课

发布时间:2013-11-25 10:35:06  




light bulb

Unit 9 When was it invented? Section A 1a-2c

知识与技能: 1.识记并会运用invent和be used for doing sth 2.理解以下单词和短语:calculator, heated scoop, adjustable heels, battery-operated slippers, light bulb 过程与方法: 通过听力训练和pair work,是学生掌握一般过去时态的 被动语态的构成与用法。 情感态度与价值观: 通过发散思维练习,激发学生的创造欲望,培养其创 新能力。 重难点: 一般过去时的被动语态

Words and expressions invent inventor invention calculator be used for doing scoop adjustable v. 发明;创造 n. 发明家 n. 发明 n.计算器 用来做…… v. 用勺舀 n. 勺子 adj. 可调整的

Words and expressions

heel n.(鞋、袜等的)后跟; (足) 跟 battery n. 电池 operate v. 操作;作业 battery-operated 电池供电的 slipper n. 拖鞋 heat v. 加热;使变热 heated adj.加热了的

Do you know?

What are the Four Great Inventions in ancient China?

paper-making 造纸术

printing 印刷术

compass 指南针

gunpowder 火 药

Edison invented the light bulb.

The light bulb was invented by Edison.

Bell invented the telephone.
The __________ telephone

Bell was invented by __ .

Karl Benz invented the car. The car was invented by Karl Benz ______ ____ .

The passive voice.

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 英语中动词有主动语态和被动语态两种语态. 主动语 态


助动词be+ (及物动词的) 过去分词

{ was (were) + done

am (is, are) + done




The passive voice.



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.

The passive voice.


Bell invented the telephone in 1876.
主语 谓语动词过去时 宾语 时间状语

The telephone was invented by Bell in 1876.
主语 谓语动词的过去分词 宾语 时间状语

The passive voice.
Bell invented


the telephone in 1876.



1b Listen and match the inventions with the dates.

d ___ 1876 a ___ 1885 e ___ 1927 c ___ 1971

b ___ 1976

Let’s look and talk

name?---when?--- who?

light bulb

Let’s look and talk

A: When was the light bulb invented? B: It was invented in 1879 A: Who was it invented by ?

B: It was invented by Edison.

Let’s look and talk

name?---when?--- who?

A: When was the car invented? B: It was invented in 1885 A: Who was it invented by ? B: It was invented by Karl Benz.
Karl Benz.

Pair work 1

TV set



When, who,

Pair work 2 calculator


When, who,


What is it used for?

It is used for taking photos .

light bulbs

What are they used for? They are used for giving light.

What are they used for ?

battery-operated slippers

heated ice cream scoop

shoes with adjustable heels

2a Listen and number the inventions in the order that you hear them.




2b Listen again and match the items with their inventors and uses.
Invention Who was it/were they invented by Chelsea Lanmon What is it/are they used for? scooping really cold ice cream

shoes with adjustable heels batteryoperated sneakers heated ice cream scoop

Jayce Coziar seeing in the dark and Jamie Ellsworth Julie changing the style Thompson of the shoes

It’s used for scooping really cold ice cream. 【经典习题】完成句子: 邮票是用来发送信件的。 used for ______ Stamps are ____ ___ sending letters. 【要点点拨】be used for doing sth. 表示 “被用于干某事”,意思与be used to do sth.相同。 如:The camera is used for taking photos. = The camera is used to take photos.

【拓展延伸】 ◆be used as sth. 表示“被用作某物”。如: English is used as the second language in many countries. ◆be used by sb. 表示“被某人使用”,后 接动作的执行者。如:These textbooks are used by students. ◆be / get used to do sth. 表示“习惯于做 某事”。如:She is used to running every morning. ◆used to do sth. 表示“过去常常做某事”。 如:Miss Li used to dance after work.

When was the car invented? When were electric slippers invented? Who were they invented by?

It was invented in 1885. They were invented last year. They were invented by Julie Thompson.

What are they used They’re used for for? seeing in the dark.


1. They made these computers in Shenzhen.
These computers ____ _____ in were made

2. She bought a new bike yesterday. was bought A new bike ____ ______ by her yesterday.

1. — I feel very happy that I ____ to be the host. — Congratulations! (07’ 江西) A. choose B. am chosen C. was chosen D. haven chosen 2. Today Chinese ________ by more and more people around the world. (07’北京) A. was spoken B. is spoken C. spoke D. speak

3.(课改实验区考生做) (07’重庆) — Your hometown has changed a lot. — Yes. Take a look at these tall buildings. They ______ last year. A. build B.built C. was built D.were built (非课改实验区考生做) — Why is the classroom so dirty? — Sorry, sir. It _______ yesterday. We forgot to do it. A. don’t clean B. didn’t clean C. weren’t cleaned D. wasn’t cleaned

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