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题型:阅读理解-阅读单选 难度:0.65 引用次数:213 题号:11653241

What if we had the power to control time, instead of moving from the past to the present to the future? What if we could jump, loop and travel through time in a machine? What if we could go wherever and whenever we pleased?

This ability would allow us to witness historic wonders, change decisions and   see people from the past. We could right wrongs and stop wars from starting.

The mysterious puzzle of time has kept people debating its nature for hundreds of years. Science fiction writers have turned it into imaginative stories. Some scientists have even attempted to explain it using math. This math tries to make the dream of time travel come true.

The scientist Albert Einstein said that time and space are one thing. He called it “spacetime.” Einstein said that there are three dimensions in space: height, width and depth. A scientist named Hermann Minkowski added time as a fourth dimension.

Einstein introduced two ideas that have led to theories about the possibility of time travel. The first is relativity. The idea of relativity is that the force of gravity causes space to bend, which causes time to twist. The second idea focuses on special relativity. The idea is that a traveler moving super-fast through flat spacetime will enter the future. Einstein considered time “relative” because it is measured based on where we are on Earth or in space.

Stephen Hawking is a famous scientist. He believes that a time machine will never be built. If it were possible, he thinks we would already know. If a time   machine could be built, how come no one from the future has invaded us?

The first science fiction story with this theme is The Clock That Went Backward by Edward P. Mitchell, which was published in 1881. Since then, thousands of books, films and television shows have explored the idea of time travel, in which some tools such as phones, watches, photographs and old books take travelers backward and forward.

Will time travel ever happen? Who knows? Most important is to keep your eyes open and have a sense of wonder.

1. What is the author’s purpose of writing the first paragraph?
A.To show time and space are connected.
B.To show people’s interest in time travel.
C.To draw readers’ attention to time travel.
D.To make people believe time travel is possible.
2. Which of the following statement could Einstein agree with?
A.Time travel is possible in the future.
B.People can’t move faster than light.
C.Time travel is against scientific rules.
D.Spacetime is not a real thing in theory.
3. What is the last but one paragraph mainly about?
A.The first science fiction story.
B.Some tools used in time travel.
C.Edward P. Mitchell, the pioneer.
D.Different works about time travel.
4. What is the writer’s attitude toward time travel?
A.cautious.B.pessimistic
C.scepticalD.optimistic.

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阅读理解-阅读单选 | 适中 (0.65)
文章大意:本文是一篇说明文。文章主要介绍了近期一些知名汽车品牌宣布转向电动汽车,并且承诺了具体的时间表。其中,Jaguar宣布在2025年前将全部车型转向电动汽车,这对于历来以燃油车为主打的Jaguar来说是一个重要转变。文章指出,这些汽车品牌的承诺显示出整个行业在向着零排放汽车的方向迅速发展,这是一个积极的变化。

【推荐1】2021 already promises to be a dream year for greener driving news. Five established automobile brands have recently announced transitions (转型) to electric-only vehicles in the coming years. And the good news is that they’re committing themselves to actual deadlines.

On February 15, 2021, Jaguar Land Rover announced that all cars made under the Jaguar brand will be fully electric by 2025, with Land Rover following in its footsteps a few years later. Ford has committed to 2030 for vehicles made in Europe, the same year that Bentley has decided all its vehicles will be electric ones. Meanwhile, largest US automaker, General Motors, promises an all-electric lineup (阵容) by 2035.

But for many drivers and car fans, the news that iconic luxury brand, Jaguar, has made fuel-guzzling vehicles for generations but is now set to lead with a complete zero-emission range the soonest, is remarkable.

In February, Jaguar’s new CEO, Thierry Bolloré, presented the brand’s Electric Vehicles (EV) strategy, charting the course that Jaguar and its sister company Land Rover, will take in the next ten years as they make the transition to zero-emission vehicles. “Environmental innovation is at the heart of our vision as we continue to develop a range of solutions to reduce our carbon footprint and impact. We have demonstrated this commitment with new electric models from Jaguar’s past, present and future,” he said.

More car brands are expected to follow their lead. This industry-wide acceleration towards emission-free vehicles is significant. While electric vehicles are the fastest growing part in the car industry, they still make up just three percent of the total of new car sales according to the International Energy Agency. However, these ambitious goals from luxury brands as well as producers of more affordable cars indicate that the automobile industry is headed for a positive sea change very soon!

1. What can we learn from Jaguar Land Rover’s announcement?
A.The idea of electric vehicles is first put forward by Jaguar.
B.All cars of Land Rover brand will be fully electric by 2025.
C.Jaguar will only produce electric vehicles a few years later.
D.Electric-powered vehicles are the trend of the automobile industry.
2. How do many drivers and car fans feel when they hear the news of Jaguar?
A.Amazing.B.Doubtful.
C.Indifferent.D.Disappointed.
3. What’s the purpose of the fourth paragraph?
A.To present the contribution of Jaguar’s CEO.
B.To explain the reason for Jaguar’s new strategy.
C.To prove the position of Jaguar in the car industry.
D.To show the approach to reducing carbon footprint.
4. What could be the best title for the text?
A.The Leading Role of Jaguar in the Car Market
B.The Transition of Jaguar to Electric Vehicles
C.The New Breakthrough in Environmental Protection
D.The Role of Transmission-free Cars in Automobile Industry
2023-04-21更新 | 23次组卷
阅读理解-阅读单选 | 适中 (0.65)

【推荐2】It is the ideal way for travelers to ensure they wake up with the perfect view—a portable eco-capsule that can be set up anywhere in the world. The innovative, egg-shaped pods ensure travelers can camp in the most extreme corers of the world, with all the luxuries of a hotel room.

Looking like something in a sci-fi movie, the pods are equipped with solar panels, and a retractable(可收缩的) wind turbine(涡轮机), which guarantee solar and wind energy as its power. In this way, the tiny home can let you live comfortably wherever you travel. It even has its own shower and toilet, sleeping area for two, and a small kitchen. It may look like camping, but at least with the eco-capsule you can look forward to a hot shower and running water on your travels.

The 3306 1b pods can be transported on your travels in a sea-container or can be towed on a trailer(拖车), meaning the possibilities are endless.

Bratislava-based Nice Architects are behind the extraordinary sleepers and said they initially designed them for people who stay in the nature for a long time. However, it quickly became apparent that they could be opened up to the wider public and ever used in urban areas to combat high rent, and placed on roofs for studio space, or living quarters. The eco-capsule can serve as a cottage, a pop-up hotel or even as a charging station for electric cars.

The capsules could even be quickly imported for housing for emergency teams who have been quickly deployed to help with natural disasters that have destroyed nearby infrastructure. Described by the website as a “Swiss-army knife”, the self-contained unit can sustain long periods time without external resources.

The 86 sqft pods are able to sleep two people for up for a year and for those worried about a cold night’s sleep, the capsule has a thick layer of efficient heat isolation and energy restoration which significantly reduce heat losses.

The pod is designed to withstand harsh weather conditions due to its innovative design and materials used. No wonder the Nice Architects are so confident about its prospect and the producers are receiving heavy orders.

1. Who may be the eco-capsule initially designed for?
A.Campers.B.Office ladies.
C.Field biologists.D.Homeless people.
2. Why is the eco-capsule described as a “Swiss-army knife” in paragraph 5?
A.Because it is in the shape of an army knife.
B.Because it is tiny but of good quality.
C.Because it packs everything you need.
D.Because it is so useful that it is very expensive.
3. What does the designer view the eco-capsule’s future market?
A.Negative.B.Optimistic.
C.Worried.D.Doubtful.
2019-11-23更新 | 20次组卷
阅读理解-阅读单选 | 适中 (0.65)
名校

【推荐3】Sports shoes that work out whether their owner has enough exercise to warrant time in front of the television have been devised in the UK.

The shoes-named Square Eyes-contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken in a day. A wireless transmitter passes the information to a receiver connected to a television, and this decides how much evening viewing time the wearer deserves, based on the day’s efforts.

The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers, says Gillian Swan, who developed Square Eyes as a final year design project at Brunel University to London, UK. “We looked at current issues and childhood overweight really stood out,” she says. “And I wanted to tackle that with my design.”

Once a child has used up their daily allowance gained through exercise, the television automatically switches off. And further time in front of the TV can only be earned through more steps.

Swan calculated how exercise should translate to television time using the recommended daily amounts of both Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television. So, every 100 steps recorded by the Square Eyes shoes equals precisely one minute of TV time.

Existing pedometers (计步器) normally clip onto a belt or slip into a pocket and keep count of steps by measuring sudden movement. Swan says these can be easily tricked into recording steps through shaking. But her shoe has been built to be harder for lazy teenagers to cheat. “It is possible, but it would be a lot of effort,” she says. “That was one of my main design considerations.”

1. Which of the following is true of Square Eyes shoes?
A.They regulate a child’s evening TV viewing time.
B.They determine a child s daily pocket money.
C.They have raised the hot issue of overweight.
D.They contain information of the receiver.
2. What is stressed by health experts in their suggestion?
A.The exact number of steps to be taken.
B.The precise number of hours spent on TV.
C.The proper amount of daily exercise and TV time.
D.The way of changing steps into TV watching time.
3. Compared with other similar products, the new design ________.
A.makes it difficult for lazy teenagers to cheatB.counts the wearer’s steps through shaking
C.records the sudden movement of the wearerD.sends teenagers health data to the receiver
4. Which of the following would be the best title for the text?
A.Smart Shoes decide on Television TimeB.Smart Shoes Guarantee More Exercise
C.Smart Shoes Measure Time of ExerciseD.Smart Shoes Stop Childhood Overweight
2020-04-01更新 | 12次组卷
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