九年级全

When was it

invented?

Unit 6

crispysaltysour

by mistakecustomer

adj. 脆的；酥脆的adj. 咸的adj. 酸的；有酸味的错误地；无意中n. 顾客；客户

Words andExpressions

What’s this? How does it taste?

objectivesTo learn some words to describe how food can taste

crispy, sour, sweet, salty

To listen for specific information

To talk about the history of potato chips, using passive voice

Did you know potato chips were invented by mistake?

Can you describe the tastes of them?

They are crispy and salty.

1a

1. What kind of food, fruit and drink do you like best?2. Can you describe the tastes of them?

potato chips

What’s this? How does it taste?

crispy, salty

What’s this? How does it taste?

sweet ice cream

salted duck egg

salty

What’s this? How does it taste?

lemons

sour

What’s this? How does it taste?

Write the name of a different food after each word.

sweet

crispy

salty

sour

banana, water melon

fried chicken, potato chips

cheese, salted eggs

vinegar, lemon

1b

T F

Listen and circle T for true or F for false.

1. Potato chips were invented by mistake.

2. They were invented in 1863.T F

3. The customer thought the potatoes were not thin enough.4. The customer said they were not salty enough.5. George wanted to make the customer happy.

6. The customer was happy in the end.

T F

T F

T F

T F

1c

back in 1853.

loved thepotatoes.

didn’t want

Listen again. Complete the sentences.

The History of Potato Chips

Do you know how potato chips were invented? Potato chips ______________ by a cook called George Crum. They were invented in ________________. George Crum cut the potatoes really, really ___________ and then cooked them for a long time until they were _________. Finally he put lots of salt on them so they were ______________.

were invented

1853thin

crispyreally salty

1d

Make a conversation about the invention of potato chips. Use the information in 1c and 1d.

Did you know potato chips were invented by mistake?

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

1e

Make a conversation about the invention of potato chips. Use the information in 1c and 1d.

They were invented by a cook called George Grum.

When was that?

Make a conversation about the invention of potato chips. Use the information in 1c and 1d.

Oh, it was in 1853.

Wow, cool. Why was it an accident?

Make a conversation about the invention of potato chips. Use the information in 1c and 1d.

Eh…it is really a long story.

Never mind, I am not busy.

Role-play

1. Role play in groups;2. Role play in front of the class

We’ll see which group does the

best.

1e

The potato chips were invented by mistake.

薯片是无意中被发明出来的。by mistake 意为“错误地 , 无意中”，常置于句末。【经典习题】完成句子：很抱歉我错拿了你的书包。I’m sorry that I took your schoolbag

___ _______. by mistake

拓展延伸mistake 为名词时，还可构成短语：make a mistake （犯错误）mistake 为动词时，常用于 mistake…

for… （把……误认为……） I mistook Kate for her sister when I

met her yesterday.

根据句意和首字母提示补全单词。1. There were four famous inventions

in a______ China.

2. These cars were p_______ by the

same company.

3. Few pears r________ on the trees after the heavy rain.

4. I don’t like the t_____ of the meat.

ncient

roduced

emained

aste

注 : 另附 word 文档。 点击此处链接

— “Frog”, Mo Yan’s latest novel, please!

— Sorry, it ____ just now. But it will come out again soon.

A. sold out B. is sold out

C. has sold out D. was sold out

It ____ last week that the haze( 雾霾 ) in Beijing caused many problems.

A. reports B. reported

C. is reported D. was reported

本课时重点回顾

1. new words crispy, sour, salty2. passive voice Potato chips were invented by

mistake.

Now 2 mins to test your spelling.English-Chinese

crispy salty sour

客户 错误地When finished, exchange your papers to see who does the best.

Chinese-English

1. Write a short passage about the history of your favorite food.

2. Preview the new words we will use in the next lesson.

Homework