Look !

Our pride

What is an invention?

An invention is a new thing that someone has made.Edison was a great inventor, he invented more than 2,000 inventions in his

life.

What is this ？Is it an invention ?

When was it invented ?It was invented in 1903.

1903

1971

What is it ?It is a calculator.

When was it invented ?It was invented in 1971.

• 1a.Look at these inventions. When were they invented ? What was invented earliest ?What was invented later? Number them in order. Let’s discuss .

• Useful expressions:• I think the calculator was invented

before the computer.• I think the calculator was invented

after the computer.

What’s the right order ?

Let’s come to 1b.

Look at the following numbers .Let’s learn to read them first.

1976

19711876

1927

1885

Listen and match the inventions with the dates.

a

b

ce

Let’s come to 1c.

Make up dialogues

•

• Sample dialogue:

When was the telephone invented?

I think it was invented in 1876.

1876

18851927

1971

1976

1

2

3

4

5

Work in pairs.

Key phrase:

• Sb invent sth ( 主动语态 ）• Sth be invented by sb ( 被动

语态 ）

. 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着。

e.g. 1.They make trains in Zhuzhou .

Trains are made in Zhuzhou.

2.The farmers grow cotton every year.

Cotton is grown by the farmers every year.

主动语态

被动语态主动语态

被动语态

e.g Many people speak English.

English is spoken by many people.

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。

变被动语态时需要注意的事项• 一变

• 二套• 三注意

宾变主，主变宾，宾语前面 by紧跟，谓语动词变过分，不忘前面 be 词跟套时态，主动被动时态同注意：主语人称数变化 . 主谓一致大问题。

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 (be + d

one )

2. 一般过去时态 was/ were + 过去分词 (be + done )

3. 一般将来时态 will be + 过去分词 ( will be done )

4. 现在完成时态 have/ has +been+ 过去分词 (have/has been done)

5. 含情态动词的 情态动词 + be+ 过去分词 (can/must be done)

)

所有时态的被动语态否定试就是在 最前面的助动词 /be/must 等后加 n

ot

疑问句就是把最前面的助动词 /be/must 等提前。

Many trees will not be planted in future.

Will many trees be planted in future ?

把下列的句子变为被动语态的句子：

1 、 They speak English in Canada .

2 、 People used wood for making tables.

3 、 They have made computers in the USA.

English is spoken in Canada (by them).

Wood was used for making tables.

Computers have been made in the USA.

把被动句变否定Computers haven’t been made in the USA.

4 、 They have grown rice in South China.

5. We must plant more trees next year.

6.I am going to clean our classroom tomorrow.

More trees must be planted next year.

Our classroom is going to be cleaned tomorrow.

Rice has been grown in South China.

把被动句变疑问 .

Has rice been grown in South China ？

变被动语态的特殊情况• 一、双宾语buy/make sb sth=buy/make sth for sbgive sb sth =give sth to sb1.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 + to /for sb+ by sb.

Sb + be+ 过去分词 sth + by sb

二、无 to 不定式

• 一感 二听• 三让 • 四看

feel listen to.hearLet/have/make

watch/ see/look at/notice

变为被动时加上 to

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• 常考到的动词短语有

完整性

• 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 accident (happen) just now. happened

2. I’m sure that my dream .(come true) some day in the future

will come true

常用的被动语态短语be made of

from

into

be used to do

for doing

as

由 -- 制成的 看出原材料看不出原材料

原材料制成成品

be filled withbe covered with

eg. 1.Paper is made wood.from

2.Tables are made wood. 3.Wood is made paper and tables.

ofinto

被用来 --

被用作 用 -- 充满被 -- 覆盖

Talk about the picture.

1

When :1971Who :BellUsage :talk with people

Who was sth invented by ?

1. Gina invented A.

S1: Who was A invented by ?

S2: It was invented by Gina.

2.Jim invented B.

S1: Who was B invented by ?

S2 : It was invented by Jim.

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

take photoskeep off rain open the

door

cut things study tell time

Who :Karl Benswhen :1885Usage :travel

A: Who was the car invented by ?B: It was invented by Carl Bens.A: When was it invented ?B: It was invented in 1885.A: What is it used for ?B: It is used for travelling .

What :abacusWhen :in the 6th century

Who : Chinese

Usage :calculat

What : telescopeWhen : 1609

Who : Galileo

Usage : watch stars

high heels

adjustable heels

adjustable 可调整的

ice cream scoop

heat 加热

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

ListeningListening

Listen and number the inventions in the order

that you hear.

2a

3 1 2

InventionWho was it/were they invented by?

What is is/are they used for?

shoes with adjustable

heelsChelsea Lanmon

scooping really cold ice cream

battery-operated slippers

Jayce Coziar and Jamie Ellsworth

seeing in the dark

heated ice cream scoop

Julie Thompsonchanging the style of the

shoes

Listen again and fill in the blanks with the

words you hear.

2b

A: What are those ?B: They are battery– operated slippers.A: ______ are they used for ?What B: They ___ ____ for seeing in the dark.A: That’s cool! ____ were they invented ____?B: Julie Thompson. And look at this heated ____ _____ _______.

A: I know what it’s for. It’s used for _________ out really cold ice cream.

are used

Who by

cold ice cream

scooping

B: Right. It ____ ________ by Chelsea

A: My favorite are those shoes with ________ heels. You know – you can

move the heels ____and______up down.

They were invented ___ Jayce Coziarand Jamie Ellsworth.

was invented

adjustable

by

B: And what are they used for?A: Well, you can change the ____ of your shoes. You can ______the shoes go from casual to dressy.

Lanmon

style

make

shoes with adjustable heels

What are they?

Who were they invented by?

Jayce Coziar and Jamie Ellsworth

changing the style of the shoes.

What are they used for?

Practice:

battery-operated slippers

Julie Thompson

seeing in the dark

What are they?

Who were they invented by?

What are they used for?

heated ice cream scoop

Chelsea Lanmon

scooping cold ice cream

What is it?

Who was it invented by?

What is it used for?

What’s it ?

A: What do you

think of this invention ?

B: I think it is the most useful invention. Because we can

use it to get information that we need.

alarm clock

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

A: How do you like thisInvention ?

Henry FordEdisonBellTs’ai Lun( 蔡伦 )Wright brothersfisher

inventorsinventions

PapermakingPlane Washing machineLight bulbCar Telephone

Many inventors invented lots of inventions.Some are useful . Others are annoying. Lookat the inventions below .Are they useful or annoying ? Match the two columns and discuss.

How many other inventions can you think of ?

Inventions computer games plane

cigarettes car

ice cream train

washing powder microwave

war weapon( 武器） television

• 3a.Fill the chart on page70

A survey: What do you think is the most helpful/annoying inventions?Name Helpful

inventions

Why Annoying inventions

why

3b.Pairwork and fillthe chart below.

Challenge your thinkingChallenge your thinking What would you do if you are alone on a tiny island?

Choose five inventions you would like to have on the island with you. Tell the group what you chose and why.

What would you do if you are alone on a tiny island? Choose five inventions you would like to have on the island with you. Tell the group what you chose and why.

A: I’d like to have some matches because I could light a fire to keep w

arm.B: Yes, but that’s not going to help yo

u leave the island. I think it would be better to have a mobile phone.

What would you choose if you were on the island alone?

• Matches

• Food

• Clothes

• Telephone

• Mp3

• Money

Warming up

List some kinds of

food and describe

their tastes.

List some kinds of

food and describe

their tastes.

sour, sweet

lemon

ice cream

sweet ， cold

pleasant smellpleasant smell

tea

potato chips

crispy, salty

1a

sweet

crispy

salty

sour

Fill in the blanks with words in the box.

sour

sweet

crispy salty

sweet

salty ________________________

1b Write the name of a different food after each word.

sour ________________________

crispy _______________________

sweet _______________________banana candyapple

biscuit potato chips

potato chips

vinegar lemon

1. The potato chips were invented by mistake.

2. They were invented in 1863.

3. The customer thought the potatoes weren’t thin enough.

4. The customer said they weren’t salty enough.

5. George wanted to make the customer happy.

6. The customer was happy in the end.

Listen and circle “T” or “F”.2aT F

T

T

T

T

T

F

F

F

F

F

2b Listen again and complete the sentences.

The history of chips

_____________ that potato chips were invented by

mistakes? Chips _____________ by a chef called

George Crum. They were invented in ______ .George

Crum cooked them for a long time until they

___________ . And he sprinkled lots of salt on them

so they were ___________.

(1)

(5)

(3)

(4)

(2)

Did you knowDid you know

were invented were invented

18531853

were crispywere crispy

really saltyreally salty

TapescriptsBoy 1 : Hey, did you know that potato chips

were invented by mistake?Boy 2 : Really? What do you mean?Boy 1: Well, here on the bag it says that they

were invented by a chef called George Crum.

Boy 2 : When was that?Boy 1: Oh, it was way back in 1853.Boy 2: So, why was it an accident?

Boy 1: Well, one day a customer in the restaurant where George worked sent back his plate of fried potatoes because he said they were cut too thick.

Boy 2: So what happened?

Boy 1 : Well, George was in a bad mood, so he cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. And he sprinkled lots of salt on them so they were really salty. He thought the customer would hate them.

Boy 2 : And?

Boy 1: And the customer loved them and asked for more. He told the other customers about them, and soon everyone was ordering thinly sliced, crispy, salty potato chips.

Boy 2 : And we're still eating them today. What a cool story!

Boy 1: Yeah.

PAIRWORKRole play the conversation about the invention of the potato chip.

Model

A: Did you know potato chips were invented by

mistake?

B: Wow, I didn’t know that. Who invented them?

A: …

2c

How were potato chips invented?

• who : a chef called George Crum when: 1853 how : by mistake cook them for a long time

…. sprinkle lots of salt on ….

3a Reading How was tea Invented?

Talk about the picture.

1.Who is the man?• He is the emperor Shen Nong.2.What was he doing ? He was boiling drinking water.3.What happened to the leaves from a nearby bush ? The leaves fell into the water.

How was tea invented ?

• Fast reading • 3a Read the article and write True (T) or False (F) for the statemen

ts below. 1.Tea ， the most popular drink in the world ， was i

nvented by mistake . 2.The emperor Shen Nong discovered tea when he wa

s boiling drinking water over an open fire.

F

T

Reading in detail

• Vocabulary A: Find these phrases 1. 偶然 2. 直到……才 3. 根据…… 4. 在户外火上 5. 煮饮用水 6. 灌木上的叶子 7. 掉入 8. 就这样

by accidentnot…untilaccording toover an open fireboil drinking water

Leaves from a nearby bushfall into

in this way

• B. Explain these phrases ：• 1.beverage =drink• 2.an ancient Chinese legend• 3.remain there for some time• 4.notice that …• 5.produce a pleasant smell• 6.taste the hot mixture• 7.decide to do

饮料古老的中国传说停留在那儿一段时间注意到……产生一种愉悦的气味

品尝热的混合液体

• Content reading A. Read the text and fill the blanks. 1.Althoug tea to the Weste

rn world until 1610 ， this beverage over three thousand years before that.

2. an ancient Chinese legend ， the emperor Shen Nong tea when he was boiling

was’t brought

was discovered

According to

discovereddrinking water over an open fire.

• 3.Some bush the water and for some time.

• 4.The emperor the leaves in the water Later he decided to mixture. It was quite delicious. And ， one of the world’s favorite drinks

leaves from a nearby fell intoremained there

noticed that

produced a pleasant smell.taste the hot

In this way

wasinvented

B. Answer the questions below

1. What is the article about?

2. When was it invented?

3. Who was it invented by?

4. How was it invented?

The article is about the invention of tea.

It was invented over three thousand years ago.

It was invented by the Chinese emperor, Shen Nong.

It was invented by accident.

What have you learned from 3a?

• Inventions come from our daily life.

• We can invent many things too.

• For another example :Look at 3b.

3bWrite an article using the notes in the box.

Who: college students

What: metal pie plate, flying disk

When: 1950s

Where: bakery Bridgeport, Connecticut

Why: new toy

How: students eat pie, throw pie plates

Today: clubs, magazines, festival

From pie plate to flying disk

The flying disk was invented by

college students.

___________________________

___________________________

___________________________

___________________________

___________________________

A sample versionA sample version

The flying disk was invented by college students.

Flying disk is a metal pie plate. In the 1950s, several

college students ate pies made by a bakery in

Bridgeport, Connecticut. They found it interesting to

throw the pie plates with each other. Then it became a

game. Today, there are flying disk clubs, magazines and

even a festival.

The flying disk was invented by college students.

Flying disk is a metal pie plate. In the 1950s, several

college students ate pies made by a bakery in

Bridgeport, Connecticut. They found it interesting to

throw the pie plates with each other. Then it became a

game. Today, there are flying disk clubs, magazines and

even a festival.

From pie plate to flying disk

How can we invent things?

• First ， pay attention to problems in our lives.

• Second ， think of a good way to deal with them. Then you may make it.

• Look at 4a.

a lazy person’s invention

4a Think of something that you don’t like doing. And think of an invention that can help you. Write the details in the chart.

Problem: ____________________________

New invention: _______________________

Use: ________________________________

Price: _______________________________

writing tests

a pen that listens and writes

listen and write instead of you

100 yuan each

We have problems so we can invent.

• Problem1: meet new and difficult words while doing homework

• New invention :a computer pen

• Usage :We can ask the computer pen for help when we meet the difficulties . Just tell it about our trouble .then it can help us.

• Price :200 yuan

• Problem2 :We are short of water. I want to use waste water more times.

• New inventions : a water cleaning machine

• Usage :We can use waste water again and again.

• Price : 1000 dallors

To be a seller

• Sell our inventions You should introduce your invention and

sell them.

Homework

• Write about your inventions .

A good invention must be useful to

our society （社会） and people .It should make our lives more comfortable. It should be helpful to protect ( 保护 ）our earth.