TEENS 初三20-21学年第43期总第661期教案

王珊

 

 

What does this code tell us? (P6)

 

 

I. Warm up

    

     Look at the picture: 

 

 What is it?

 Where do you usually see them?

 Can you guess what they are used for?

 

     

II. Reading

Pre-reading

Look at the title and predict. What will this article be about?

 

Part I 

 

Read Paragraph 1 and find the answer.

1. What do we know about barcodes?

A. They were first used in New York.

B. They were invented five decades ago.

C. They were based on the Universal Product Code.

D. They were designed by a cashier in a grocery store.

B

 

What does a barcode look like?

It looks like black-and-white zebra stripes.

 

 

Part II

Read Paragraph 2 and fill in the blanks.

 

 

How do barcodes make our lives easer?

Barcode technology makes it faster and easier to buy things in stores. It also frees cashers from having to ring up prices by hand.

 

 

 

Part III

Read Paragraphs 3 and 4 and answer these questions.

1. How many times are barcodes scanned every day?

Barcodes are scanned over 6 billion times every day.

 

2. How many companies use them?

They are used by 2 million companies worldwide.

 

3. What information does a barcode contain?

Where the product comes from, where it has been, its price, expiration date.

 

4. Which advantages of barcodes are mentioned in Paragraph 4?

Barcodes can be used to store product information. They can also help stores keep track of their products. Libraries use them to keep track of books.

 

 

Part IV

Read Paragraph 5 and find the answer.

3. According to José María Bonmatí, barcodes _____.

A. make cashiers’ work easier to do

B. improve the quality of food packaging

C. help companies better manage their stock

D. tell consumers more about the products they buy

C

 

4. What do we know from the last paragraph?

A. The importance of barcodes still needs to be proven.

B. QR codes will replace barcodes in the future.

C. GS 1 is developing a new type of barcode.

D. QR codes are more consumer friendly.

D

 

IV. Post-reading

Which word might the writer use to describe barcodes?

A. Organic.             

B. Beautiful.

C. Convenient. 

D. Expensive.

 

 

Further thinking

Learn about how a barcode contains information and then design a barcode with your partner. Exchange it with other groups and see if they can understand it.

 

 

V. Words in use

Complete the sentences using the given words and phrases.

come up with   ring up   prove   contain   keep track of  

 

1. It was a very effective way for them to  ________ their spending.

2. She was ________ her sale when the police came in.

3. We have to ________ how brave we are.

4. A balanced menu must ________ foods with different nutrients (营养物质).

5. Researchers recently _________ a new theory.

 

keep track of

ringing up

prove

contain

came up with

 

Language Points

I. Learn the following useful phrases.

食品商标

收银员

过期时间

凡是你能说出来的

数字化

二维码

 

food labels

cashier

expiration date

you name it

digitization

QR codes

 

 

 

II.

It became the basis for the Universal Product Code, which was used by many grocery companies starting in 1973, according to The New York Times.

 

长难句辨析：

Which 在这里引导的是非限制性定语从句，指代的内容是前面所讲的 “the Universal Product Code” 。