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Grace Hopper (December 9, 1906—January 1,1992)

She was a computer scientist from the United States. She developed the first compiler for a computer programming language. She pioneered the idea of writing computer programs in a language close to English. She was instrumental in the establishment of testing standards for computer systems. She made important contributions to computer technology.

Barbara McClintock (June 16, 1902—September 2,1992)

She was an American scientist who won the Nobel Prize in Physiology or Medicine in 1983.She led the development of the maize cytogenetics(细胞遗传学). She discovered the process of transposition and used it to demonstrate how genes are associated with the presence or absence of certain physical characteristics in human beings. She is one of the mat famous cytogeneticists of the world.

Chien-Shiung Wu(May 31,1912—February 16,1997)

She was a Chinese-American scientist known for her work in radioactivity. She was a part of the Manhattan project where she helped develop the process of making uranium-235 and uranium-238. Her experiment established that weak interaction did not follow the law of conservation of parity. She was a winner of the first Wolf Prize in Physics and was often compared with Marie Curie, giving her nicknames like the Chinese Madame Curie.

Anita Roberts(April 3,1942—May 26,2006)

She was a molecular biologist who was instrumental in the discovery of the protein TGF-beta. This protein has the potential of playing a double role of blocking as well as stimulating cancer and it helps in the curing of wounds and fractures. Anita Roberts is one of the most-cited scientists in the world.

【小题1】What do Grace Hopper and Barbara MeClintock have in common?
A.They won Nobel Prize.
B.They were from America.
C.They passed away at age 86.
D.They studied computer technology.
【小题2】What can we learn about Chien-Shiung Wu?
A.She is a great physicist.
B.She was a student of Marie Curie.
C.She was famous for studying genes.
D.She was instrumental in computer technology.
【小题3】Whose contributions are greatly beneficial to patients?
A.Grace Hopper’s.B.Anita Roberts’.
C.Chien-Shiung Wu’s.D.Barbara McClintock’s.
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The Rise of Microchipping

On August 1, 2017, workers at Three Square Market, a company specializing in vending machines, lined up in the office cafeteria to be implanted with microchips. One after another, they held out a hand to a tattooist who pushed a rice-grain sized implant into the flesh between their thumb and forefinger. The group implant event, organized by company management, fitted into Three Square Market’s longer-term vision of a cashless payment system for their vending machines — workplace snacks purchased with a flick of the wrist. The televised “chipping party” was picked up by media outlets from Moscow to Sydney. 【小题1】 After the event, Three Square Market’s Google reviews page was flooded with one-star ratings.

For Jowan Österlund, whose company Biohax provided the service, microchip implants were not radical or even novel. He has lived with one for years and has implanted hundreds of other young, tech-savvy (技术大咖) Swedes. 【小题2】 They have used their implants to gain access to their co-working spaces, pay for gym membership, and even to ride the train. But are the people of the world ready for technology to start getting under their skin?

Microchip implants are essentially cylindrical (长圆形的) bar codes that, when scanned, transmit a unique signal through a layer of skin. 【小题3】 Today, Biohax is aiming to simplify identity and access in the digital world, offering a replacement to the seemingly endless collection of passwords, keys, tickets and cards that clutter our lives. Jowan’s friend Hannes Sjöblad has his own microchip-focused business. He believes that by placing a device under the skin, instead of wearing it like a Fitbit, data collection will be greatly improved.

But Urs Gasser at Harvard University believes that extending beyond the Swedish tech-hub environment to a broader market will be legally and morally difficult. In his view, Three Square Market’s chipping event actually symbolizes the imbalances of power in the workplace. Are you a person being paid for your work, or are you the property of the company you work for?

Ifeoma Ajunwa at Cornell University adds that it is crucial to consider the implications of this technology in the context of increasing worker surveillance (管制). 【小题4】 This seems to blur the line between work and family life,” she said.

A.Microchips will deepen this dynamic, as they “literally go with the worker whenever they go”.
B.Chipping, thereby, has swept across the globe with its magnetic appeal.
C.Not all of the attention was positive, however.
D.Mostly, they have been used to organize warehouses or identify lost pets.
E.Conquered by the “almighty” microchips, workers may no longer be their own masters.
F.For this community, the chip signifies an all-in-one combination of biology and technology.

On Tuesday, the Amazon Company introduced Amazon One, which connects your palm(手掌) print to a stored credit card so you can place your hand above a sensor to enter and leave easily after buying at checkout-free Amazon(AMZN) Go stores.

Dilip Kumar, Amazon’s vice president told CNN Business that Amazon One had been used since long before the COVID-19. But the timing could be a positive for Amazon: Customers may find such payment convenient, and businesses also find it hopeful.

Yet the use of the Amazon One could raise eyebrows, too. Amazon has once come under fire from people who care about its facial-recognition software. When it comes to Amazon One data, Kumar said all palm pictures are coded and Amazon stores them online.

“I encourage people to try it, see how they like the experience,” Kumar said. You can hold your palm above an Amazon One scanner to enter the store. Then, anything you take will be automatically (自动地) charged to the credit card connected to their palm. Amazon One will make shopping faster and more convenient. Before trying it, users must place a credit card in an Amazon One device and hold a palm above it, facing down, so it can be scanned. The camera in it takes many pictures of the fine lines of the palm, and catches some details, which can’t be seen in typical photographs.

Amazon One now can be bought at two of the Amazon Go stores in Seattle, at 7th Avenue and Blanchard Street, and in the South Lake Union neighborhood.

【小题1】Why is Amazon One introduced?
A.To ensure the safety.B.To have a test.
C.To see credit cards.D.To pay easily.
【小题2】Which of the following best explains “under fire” in paragraph 3?
A.Being quite hot.B.Receiving ill comments.
C.Getting on fire.D.Gaining wide recognition.
【小题3】Which of the following is not true about Amazon One?
A.It was not used until the outbreak of COVID-19.
B.It is convenient for customers .
C.It connects the credit card to one’s palm.
D.Its device takes the pictures of the palm.
【小题4】What was Kumar’s attitude to Amazon One?
A.Doubtful.B.Objective.C.Supportive.D.Unclear.

A “Quick Response Code”, also known as QR code is a type of barcode that Denso Wave developed, a Japanese barcode developer, in 1994.

The use of technology saves people's efforts in labor. In the early 1960s, the economy of Japan entered high economic growth. During this period, supermarkets and convenience stores thrived and were selling a wide variety of goods ranging from food to clothing. To keep up with the demand for checkout counters, cash registers(收银机)were widely used. Due to the heavy workload, cashiers on the checkout counters experienced numbness on their wrists and developed a kind of disease. As a solution to the problem, the Point of Sales (POS) system was developed and included the use of barcodes.

In the long run, developers noticed the problem barcodes held. The limit of 20 alphanumeric characters was not long enough in holding a product's information and the position of how a barcode is scanned leads to scan failures. Denso Wave stepped in and invented a new type of barcode that could hold more information and could be scanned in any scanner direction. Thus, QR code was introduced in 1994 and has made history up to today.

Today, QR codes are generally used in advertising, business, health care, and education. There are two types of QR codes: Static QR codes and Dynamic QR codes. Static QR codes are QR codes that are free and permanent. This type of QR code is not modifiable (可修改的) and therefore cannot change the data stored in the QR code. Dynamic QR codes are QR codes that are modifiable in content and can store more data even after you have printed it into the paper.

【小题1】What's the author's main purpose in writing this text?
A.To explain how QR codes work.
B.To promote the use of QR codes.
C.To praise the efforts of Denso Wave.
D.To introduce the development of QR codes.
【小题2】What does the underlined word “thrived” in Paragraph 2 mean?
A.Remained stable.B.Developed rapidly.
C.Slowed down.D.Started off.
【小题3】What problem was POS system intended to deal with?
A.The lack of counters.B.Barcodes' scan failures.
C.Cashiers' physical suffering.D.The limited information in barcodes.
【小题4】What is the last paragraph mainly about?
A.The types of QR codes.
B.The importance of QR codes.
C.The advantages of Dynamic QR codes.
D.The characteristics of Static QR codes.

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