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题型:阅读理解-阅读单选 难度:0.65 引用次数:236 题号:15116981

They asked Katherine Johnson for the moon, and she gave it to them. With little more than a pencil, a ruler and one of the finest mathematical minds in the country, Mrs. Johnson, who died at 101 on Monday, calculated (计算) the track that would let Apollo 11 land on the moon in 1969 and, after Neil Armstrong's history—making moonwalk, let it return to Earth.

Yet throughout Mrs. Johnson's 33 years in NASA and for decades afterwards, almost no one knew her name.

Mrs. Johnson was one of several hundred strictly educated, extremely capable yet largely unrecognized women who, well before the modern feminist (女权) movement, worked as NASA mathematicians. But it was not only her sex that kept her long unsung. For some years at mid-century, the black women were forced to a double segregation (隔离). They were kept separate from the much large group of white women who in turn were segregated from the mathematicians and engineers.

Mrs. Johnson broke barriers at NASA. In old age, Mrs. Johnson became the most celebrated of black women who served as mathematicians for the space agency. Their story was told in the 2016 Hollywood film “Hidden Figures,” which was nominated (提名) for three Oscars, including Best Picture.

In 2017, NASA devoted a building in her honor. That year, The Washington Post described her as “the most celebrated of the computers” — “computers” being the term originally used to describe Mrs. Johnson and her colleagues, much as “typewriters” were used in the 19th century to represent professional typists.

She “helped our nation enlarge the frontiers of space,” NASA's administrator, Jim Bridenstine, said in a statement on Monday, “even as she made huge steps that also opened doors for women and people of color in the universal human effort to explore space.”

As Mrs. Johnson herself was fond of saying, her term at Langley — from 1953 until her retirement in 1986 — was “a time when computers wore skirts."

1. What is the first paragraph mainly about?
A.Neil Armstrong’s moonwalk.
B.Katherine Johnson’s contributions
C.The Apollo 11 mission to the moon.
D.Breakthroughs in moon exploration.
2. Why were Mrs. Johnson described as “computers”?
A.She helped invent the computer.
B.She was NASA's human calculator.
C.She calculated the track with computers.
D.She was quite capable of using computers.
3. What can we learn from Mrs. Johnson’s experience?
A.Change the world for the better.
B.Use knowledge to wipe out ignorance.
C.Don’t judge a person by his appearance.
D.Never be limited by the labels given by others.
【知识点】 说明文 其他著名人物

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【推荐1】Weeds (野草) compete for soil nutrients, water, space, and sunlight with the crops farmers grow to help feed people. Now a third-generation weeding robot, armed with lasers (激光) and powered by AI, offers a labor-saving (节省劳力的) device — while also avoiding the need for chemical herbicides (除草剂) .

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Moving along a row of crops, a battery of twelve cameras scans the ground, identifying weeds through machine-learning and killing them with a CO2 laser. The robot's onboard supercomputer ensures high accuracy with its laser so as to avoid accidentally cutting crops.

“This is one of the most innovative and valuable technologies that I've seen as a farmer,” said James Johnson of Carzalia Farm in a statement, who has used Carbon Robotics' technology on his farm. “I expect the robots to go mainstream because of how effectively they address some of farming's most critical issues, including the overuse of chemicals, process efficiency, and labor. The sky's the limit.”

If a farmer wants to avoid using chemical herbicides, which have flooded nearly every corner of our food and water supply chains with a probable carcinogen (致癌物) , they must find enough unskilled workers to pull weeds manually — a difficult task in the already short market of agricultural labor.

Since it can solve both problems, it's no surprise that the 2021 model of the Autonomous Weeder has already sold out, even considering it is priced at hundreds of “thousands of dollars.”

To make the device more accessible, rent options are available from the company, as they have already made the 2022 models available for preorder.

The weeding method of the robot is organic and in line with sustainable farming practices. Cost-effective weed control is the biggest difficulty of organic farming, and agriculturalists looking to make the change finally have an option to help them get their vegetables out to people.

1. What can be learned about the third-generation weeding robot?
A.It is CO2-driven.B.It damages crops by accident.
C.It functions with the help of lasers.D.It is used to pour chemical herbicides.
2. What is James Johnson's attitude to the weeding robot?
A.Favorable.B.Curious.C.Doubtful.D.Critical.
3. Why is the 2021 model of the weeding robot so popular?
A.It can work in different fields.B.It can increase food production.
C.It is priced low and easy to operate.D.It is labor saving and protects human health.
4. What can be inferred from the last paragraph?
A.Organic vegetables enjoy a wide market.
B.The new weeding method is accessible to farmers.
C.The weeding robot helps realize organic farming.
D.Cost control is the biggest problem of organic farming.
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【推荐2】You’ve probably heard about how Sweden is running out of garbage. And it’s true: The country of just 10 million people sends less than 1 percent of its waste to areas of land where waste is buried under the earth. The waste is burned to create electricity and energy to heat homes.

Recycling is such a part of the culture that there’s even a shopping centre — the ReTuna — that has only upcycled (升级改造的) and repaired things. The shopping centre lies about 60 miles outside Stockholm in the town of Eskilstuna. There are 14 stores, a restaurant and also a program where interested Swedes can learn how to recycle even more.

The shopping centre was created as part of the local recycling center and includes a drop-off center, so locals can drop off things they no longer need or which need fixing, and pick up things they need — all without ever buying new things.

Not only are the people of Eskilstuna recycling more and wasting fewer materials, the center has offered the types of jobs including repair work, management of the shopping centre, selling goods in the shops, as well as roles for artists, and teachers (for the classes in repair and upcycling).

Looking at this project, we can start to see how waste doesn’t have to be a trouble or something we pay to deal with. Instead, we can use circular-economy (循环经济) thinking to deal with waste. Rather than the model of take-use-throwaway, the circular-economy model is one where everything we make is part of a circle of resources and energy, just like how the natural world works.

There’s great value in our garbage, if only we choose to see it that way. The shopping centre of Eskilstuna already does.

1. Why is Sweden mentioned in the first paragraph?
A.To show it is not a large country.
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C.To show it uses electricity to heat home.
D.To show it is good at dealing with waste.
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B.It offers the old goods for free.
C.It is well-known for its good service.
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3. What does the author want to tell us in the fifth paragraph?
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C.Dealing with garbage is a huge problem nowadays.
D.The ReTuna is an example of circular-economy model.
4. Which of the following could be the best title for the text?
A.A shopping centre that only sells recycled goods
B.Swedish ways of dealing with daily waste
C.Swedish circular-economy thinking
D.Great value in our daily garbage
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【推荐3】Learning how to use new words well will make it easier to learn a language and make you more knowledgeable.

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Write more.    2    . Actively exercising your writing muscles will keep your vocabulary strong. Write letters to old friends and use lots of specific details.    3     If you typically avoid composing memos or writing group emails or participating in group discussions, change your habits and write more. You might as well get paid while you are building your vocabulary.

Use flash cards or post-it notes around your house. If you're going to make a habit of learning new words, try some simple memorization techniques. Hang post-its with the definition of a particular word you hope to memorize above the coffee maker, so you can study it while making your morning cup.     4     Even if you're watching TV or doing other activities, keep some flash cards with you and study your new words.

Use accurate adjectives and precise nouns. The best writers aim to keep it short and accurate. Get out the dictionaries and use the most accurate words possible in your sentences.    5    . A word is a useful addition to your vocabulary if it reduces the number of the words in a sentence.

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G.It also pays to create a good habit of guessing what the writer is really trying to say
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