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九年级英语:Unit9__Section_A2

发布时间:2013-11-25 12:31:05  

Unit 9 When was it invented ?

What is/are … used for? It’s/They’re … used for…

Pairwork (1c:P68)
A: When was the _______ invented? B: I think it was invented in ______. 1971 1927 1885 1976 1876

A: What is the _______ used for? B: It is used for talking with people ___________.
(talk with people)

A: What is the _______ used for? B: It is used for ___________. (study) studying

A: What is the _______ used for? B: It is used for ___________. (count) counting

What are they used for?

light bulbs

They are used for giving light.

Karl Benz
Who invented the car?

1885

Karl Benz _______ invented the car.
The car____ ________ by______. was invented him

When was it invented ? was invented It____ _________ in 1971 ______.

Bell
1971
Who was the telephone invented by? B: It was invented by___. A: When was it invented ?
A: B:

I think it was invented in __.

alarm clock

It’s an annoying invention. Because it wakes me up when I’m sleeping.

I think computer is the most helpful invention. Because it helps me search the information that I need.

high heels

adjustable 可调整的

adjustable heels

scoop

heat 加热

ice cream scoop

slippers

a battery

batteries

operate 操作

Who were they invented by?

What are they used for?

adjustable 可调整的

operate 操作

heat 加热

Listening

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

2a

3

1

2

Invention

Who was it/were they invented by?

What is is/are they used for?

shoes with adjustable heels batteryoperated slippers heated ice cream scoop

Chelsea Lanmon

scooping really cold ice cream

Jayce Coziar and seeing in the Jamie Ellsworth dark
Julie Thompson

changing the style of the shoes

Practice:
Jayce Coziar and Jamie Ellsworth

changing the style shoes with adjustable heels of the shoes.

What are they? Who were they invented by? What are they used for?

Julie Thompson battery-operated slippers seeing in the dark

What are they? Who were they invented by? What are they used for?

Chelsea Lanmon
heated ice cream scoop scooping cold ice cream

What is it? Who was it invented by? What is it used for?

用“invented” 或 “used for”填空. 1. What are electric slippers used for _______? 2. Who were shoes with adjustable heels ________ by? invented 3. When was tea ________? invented 4. What are microwave ovens used for _______? invented 5. When were potato chips ________?

A: Look! This looks so interesting! B: Ah, it’s a great invention of China. A: Really? When ______ it _________? was invented B: I think it ______ invented in Han Dynasty. was _________ (汉朝) is used A: What ______ it ______ for? B: Guess! Is used A: ______ it ______ for holding water? is used B: No. It _____ ______ for testing earthquakes. A: Wow, it’s really amazing!

What telescope When 1609 Who Galileo Use watching stars Abacus [?’b?k?s] in the six century Chinese calculating

(The Passive Voice)
.主动语态与被动语态:

英语动词有

两种语态,即主动语态(The Active Voice)与被动语态(The Passive Voice)。 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。
e.g. 1.They make trains in Zhuzhou . Trains are made in Zhuzhou. 主动语态 被动语态 主动语态

2.The farmers grow cotton every year.

Cotton is grown by the farmers every year. 被动语态

主动语态变被动语态的步骤: 1、主动语态的宾语变为被动语态的主语; 2、主动句的谓语动词变为被动结构; 3、主动句的主语变为被动句的宾语,由by 引 出,当不强调动作的执行者时,常省略。 4.其它成分不变。 e.g Many people speak English.

English is spoken by many people.

变被动语态时需要注意的事项
? 一变

宾变主,主变宾,宾语前面by 跟,谓语动词变过分,不忘前 面be动词跟 ? 二套 套时态,主被动时态一致 ? 三注意 注意因人称的变化而引起的 主谓一致问题。

各种时态的被动语态的构成:
1.一般现在时态 am, is, are +过去分词 2.一般过去时态 was, were +过去分词 3.一般将来时态 will/am.is.are going to + be +过去分词 4.过去将来时态 would/was.were going to + be + 过去分词 5.现在完成时态 have, has + been +过去分词 6.过去完成时态 had + been +过去分词 7.现在进行时态 am, is, are + being +过去分词 8.过去进行时态 was, were + being +过去分词 9.含情态动词的 情态动词 + be +过去分词

所有时态的被动语态否定就是在 最前面的助动词后加 not
Many trees are not being planted now

疑问就是把最前面的助动词提前。
Are many trees being planted now?

把下列的句子变为被动语态的句子: 1、They speak English in Canada . English is spoken in Canada(by them).

2、People used wood for making tables. Wood was used for making tables. 3、They are making computers in the USA. Computers are being made in the USA.
把被动句变否定 Computers aren’t being made in the USA.

4、They have grown rice in South China.

Rice has been grown in South China.
把被动句变疑问. Has rice been grown in South China?
5. We must plant more trees next year.

More trees must be planted next year.
6.I am going to clean our classroom tomorrow.

Our classroom is going to be cleaned tomorrow.

变被动语态的特殊情况
? 一、双宾语 buy/make sb sth=buy/make sth for sb give sb sth =give sth to sb
1.My father bought me a computer. A computer was bought for me by my father. I was bought a computer by my father. 2.He gives me a book. A book is given to me by him. I am given a book by him

Sth+be+ 过去分词+ for/to sb+ by sb. Sb + be+ 过去分词 sth + by sb

二、无to不定式

变为被动时加上to
? 一感 feel 二听 listen to.hear ? 三让 let.have.make ? 四看 watch. see.look at. notice

eg. We often see him play basketball. He is often seen to play basketball by us. The boss made

the children work for long. The children were made to work for long by the boss.

三、注意动词短语的 完整性
? 常考到的动词短语有

? take care of ? look after ? listen to ? speak to eg. 1.We should speak to the old politely. The old should be spoken to politely. 2. The nurse takes good care of the baby. The baby is taken good care of by the nurse.

四、无被动语态的动词。
? 不及物动词及系动词 ? happen ? take place ? die ? rise ? come true ? come out eg.1. An accidenthappened (happen) just now. 2. I’m sure that my dream will come true. (come true) some day in the future

常用的被动语态短语
看出原材料 be made of 由--制成的 看不出原材料 from into 原材料制成成品

eg. 1.Paper is made from wood. 2.Tables are made of wood. 3.Wood is made into paper and tables.
be used to do 被用来-for doing as 被用作 be filled with 用--充满 be covered with 被--覆盖


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