A retired couple in the Netherlands have moved into Europe’s first fully 3D-printed house. The two-bedroom bungalow (平房) in Eindhoven is the first of five homes planned on the site in the coming months, using a huge 3D-printer. It’s part of some special teamwork between Eindhoven University of Technology and the Vesteda housing company called Project Milestone.
This house was designed by an architect and printed using a huge robotic arm in a special warehouse (仓库). The printer uses a nozzle (喷嘴) that squirts out special substance to print out the building, layer by layer.
Once the house had been printed it was transported by vehicle to the building site where it was placed on a foundation, and a roof and windows were added.
In the longer term, many in the building industry believe that 3D-printed homes could become a sustainable solution for tackling housing shortages. The technology is friendlier to the environment and reduces costs because it uses less concrete and homes are quicker to build. The new home took just 120 hours to print, much quicker than building a house in the traditional way, which can take around 1-2 years to build.
The new owners Elize Lutz and Harrie Dekkers, will pay $800 a month to live in the house for six months, after they responded to a request for volunteers.
“I saw a drawing of this house and it looked exactly like a garden,” said Elize. “It’s beautiful.” “It feels safe,” added Harrie.
Construction companies in the US and France have already been using 3D printing to build parts of homes, but this one is the first to be fully built and have people live in it.
1. What’s the aim of mentioning a retired couple?A.To stress their wealthy background. |
B.To advertise to sell a 3D-printed house. |
C.To introduce the topic of the 3D printing. |
D.To explain their reason for moving the 3D-printed house. |
A.It cost less and was finished more quickly. |
B.It was completed within around 1-2 years. |
C.It was designed in a two-bedroom bungalow. |
D.It was added a roof and windows in a special warehouse. |
A.Environmentally-friendly but unsafe. | B.Expensive but well-designed. |
C.Cheap and common. | D.Pretty and secure. |
A.In a history book. | B.In a novel. |
C.In an art magazine. | D.In a newspaper. |
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【推荐1】You’re in your office when you learn there’s someone with a gun wandering outside. You can hear gunshots and screams. What do you do?
That’s the challenge for users of a new virtual (虚拟)reality program called SurviVR, designed to train employees how to deal with an active shooter situation in the workplace. The program works with HTC Vive, the virtual reality headset released earlier this year.
An active shooter situation is when an armed person or people actively shoot in a small, populated area with the intention to kill. There were 20 such situations in the United States last year and 20 the year before, according to FBI statistics, resulting in a total of 231 deaths. This year saw the deadliest active shooter situation in US history, with 49 people killed in a nightclub in Orlando.
In the training situation, users have four choices. They can lock themselves in the office. They can hide, perhaps in the office closet. They can run for an exit. Or they can use something in the office—a computer or a cup a pair of scissors-as a weapon to fight the shooter. This is an improvement on standard active shooter training. Gallo says, which typically teachers people to lock themselves in place and hide. The "lock down" method is often ineffective, he says, and has resulted in many deaths in recent years.
In the training’s basic level, no one gets killed. But as the trainings become more advanced, players who make a wrong choice be shot. There’s no blood; the screen simply turns black slowly.
If this sounds terrifying, that’s the point, says Gallo. There are plenty of training programs to teach employees how to deal with workplace violence, sometimes involving role play with toy guns. But these trainings are basically games. Gallo says, with employees relaxed and even enjoying themselves. To teach people what they really need to know for an active shooter situation, they need to be scared.
"SurviVR will take the fear and turn it into confidence." Gallo says.
1. What’s the author’s purpose of describing a dangerous scene in Para. 1?A.To attract the readers’ attention on the new virtual reality program. |
B.To show the challenge that the readers are required to face. |
C.To warn the readers of the possible dangers in the working place. |
D.To inform the readers of the correct response in such a situation |
A.Fighting the shooter |
B.Running for the exit |
C.Using a computer as a weapon |
D.Locking down |
A.Searing | B.Violent |
C.Ineffective | D.Helpful |
A.A New Virtual Reality Program on Active Shooter Training |
B.What Should You Do When Meeting Gunshots in the Workplace? |
C.How to Deal with an Active Shooter Situation? |
D.Employees Need to Be Scared of the Workplace Violence. |
Some experts say that in the future ethanol will replace some of the oil imported into America. Today ethanol is less than one percent of total American fuel supply. The head of the National Corn Growers Association, Kieve Hard, says ethanol will provide twenty-five percent of the fuel supply by 2030. The organization is involved in the production of ethanol because it can be made from corn.
One company in the American Midwest says it is starting to produce ethanol because of demands from people and from the government. The Congress approved the Clean Air Act in 1990. The company says this means the market for ethanol will expand. The company is a major producer of corn starch that can be used to make ethanol.
At Texas A and M University Professor Mark Holzapple produces ethanol from materials found in solid waste. He has developed a way to turn materials like paper into simple sugar. He then uses yeast to turn the sugar into ethanol. Professor Holzapple says two hundred liters of ethanol fuel can be produced from one ton of solid waste.
A professor at the University of Arkansas, John Geddie, is exploring another way to make ethanol. He is using acids on paper material. He says a large factory could produce ethanol from waste paper at a cost about the same as the cost of producing gasoline.
Environmentalists support the use of ethanol because it turns solid waste into a useful product. Professor Holzapple says law makers in industrial nations need to support the development of this clean, less expensive fuel of the future.
1. Why does the interest in ethanol fuel increase in the United States according to the passage?
A.Ethanol products are known to cause cancer. |
B.Ethanol can remove some harmful pollutants from gas. |
C.The production of ethanol is protected by law. |
D.Ethanol-fueled automobiles are cheaper than gas-fueled ones. |
A.It will increase the consumers’ demand for ethanol as a fuel. |
B.It may increase the cost of producing gas. |
C.It reflects the view of the government on automobiles production. |
D.It limits the ethanol production of one company in the American Midwest. |
A.corn starch | B.natural gas |
C.waste paper | D.solid waste |
A.It needs the cooperation of many chemists. |
B.It associates with the use of advanced equipment. |
C.It will improve the use of heat from exhaust gases. |
D.It requires the support of the government. |
【推荐3】One thing that sets cycling apart from most other sports at the Olympics is technology. With the exception of a few other sports, such as sailing and rowing, most events that take place at the Summer Games usually just come down to the performances of the athletes. They try to swim and run faster, jump and climb higher, lift and hit with more strength.
In cycling, the competition is so close-often a hundredth of a second separates riders-that the difference in winning and losing can be found in the chain, the wheels, and even the helmet that they choose to wear. That is why the US team made headlines at Rio 2016 Olympics Games, when it rolled out a new bike design that moved the entire drive chain from the right side to the left. It might not catch the attention of the average bicyclists, who probably don’t even notice which side the drive chain is on their own bikes. But it caused plenty of outcry from the Olympic Committee, since Olympic rules state that any bike used in competition must be made available to the public. But the American bike-maker Felt Bicycles only sold the new bikes to the American team. The price? $25,999 per bike.
Then the British adopted a more tactful(圆滑的)strategy. It teamed up with bike maker Hope Technology to create something extremely expensive for the Tokyo Olympics Games this year. The frame alone sells for about $23,500. Another $12,000 for the wheels. Throwing in the expensive suits, oil for chains, and sunglasses and shoes, the investment needed to compete for a cycling medal can be almost unaffordable for most of the athletes.
1. Which game depends less heavily on technology?A.Sailing. | B.Rowing. | C.Jumping. | D.Cycling. |
A.Criticism. | B.Praise. | C.Excitement. | D.Curiosity. |
A.The British athletes enjoy unfair advantages. |
B.Hope Technology is more willing to help all. |
C.Hope Technology wants to save more money. |
D.The British team has broken the Olympic rules. |
A.Politics. | B.Sports. | C.Advertisement. | D.Economy. |
【推荐1】A 63-year-old Chinese carpenter’s traditional skills have become an unexpected Internet hit as he creates woodwork with a single piece of wood, without glue, screws or nails. Wang De wen, known as “Grandpa Amu” on YouTube, has been praised as the modern day Lu Ban, a well-known Chinese structural engineer during the Zhou Dynasty, thanks to his rich carpentry(木工手艺) knowledge.
Grandpa Amu’s most popular video, which shows him making a delicate wooden arch bridge, has gone viral on YouTube, gaining more than 40 million views. “If you do something, you have to love it, and you have to be interested in it; however, being interested doesn’t mean there’s only happiness and no pain.” Grandpa Amu shared when talking about his excellent carpentry skills.
His most popular works include a folding stool, a model of the China pavilion from the 2010 Shanghai Expo, and an apple-shaped interlocking puzzle, known as a Lu Ban lock. Grandpa Amu follows an ancient Chinese mortise and tenon(榫卯) technique, which means no nails or glue are involved in the entire process of building the arch bridge.
The master carpenter has also made several wooden toys for his grandson using the same technique. His young grandson’s favorites include a walking Peppa Pig and a bubble blowing machine. Attracting over 1.17 million fans on YouTube, Grandpa Amu’s videos so far have gained more than 200 million views.
His wonderful woodworking skills, using the same mortise and tenon joints found in the Forbidden City, were developed from the age of thirteen as a way of supporting his family in East China’s Shandong Province. “The grandson is so happy, as there have been so many fine and unique toys made by grandpa from an early age,” commented one netizen; while another said “It’s amazing. I hope these traditional crafts can be passed on!”
1. Why is Grandpa Amu regarded as the modern day Lu Ban?A.For his simple words. | B.For his popular videos. |
C.For his carpentry skills. | D.For his excellent arch bridge. |
A.Theory is from pracitce. | B.Success depends on love. |
C.Excellent skills lie in hard work. | D.Happiness comes from interest. |
A.No nails or glue. | B.Delicate design. |
C.The apple shape. | D.The wooden material. |
A.Being popular means more fans. | B.Perfect skills earn more money. |
C.Supporting family needs more skills. | D.Traditional crafts deserve passing on. |
【推荐2】Booksellers have run their trade along the banks of the River Seine for about 450 years, their time-beaten green boxes a Paris tradition as treasured as freshly baked baguettes (法棍面包).
But this piece of French history is now at the center of a storm after the city’s police ordered that the booksellers and their stalls (排位) be relocated for “safety reasons” to make way for the opening ceremony of the Summer Olympic Games in 2024.
One plan was for booksellers’ boxes to remain in place but they must be examined by the police first and sealed off (封锁) during the Olympic event, which would attract millions of visitors to the city—including many who would potentially visit their stalls. Another plan, considered even worse by booksellers, was to move the boxes elsewhere. As booksellers pit on, many bores have been is place for 30 or 40 years. Most are mused and all their parts are not strong enough.
Although the city’s government has offered to relocate the bookstalls and cover the cost of the move as well as repairing damaged stalls, booksellers say the lack of consultation over a decision affecting a Paris landmark has left them fearful about the future.
Plus, there’s concern about what will happen when the Olympics are over. “Are they even going to offer us the same spots again after the games?” asked a bookseller. “I’m afraid that we get our boxes back either in a year, or maybe never, or with someone else’s things in them,” he said.
Booksellers worried that not only would moving the boxes be much more expensive for the capital, but a relocated book market wouldn’t work. “The stalls only make sense when they are on the banks of the Seine,” they said. The attraction and culture of the boxes is their age-worn character, their poetic shades of green.
1. What trouble are Paris booksellers facing now?A.Their stalls are considered as a risk for Paris. |
B.They have to join in the Olympic opening ceremony. |
C.Their stalls must be sealed off for the city’s development. |
D.They may have to move their bookstalls for some reason. |
A.Covering the cost of repairing old bookstalls. |
B.Building a new landmark for the bookstalls. |
C.Replacing old bookstalls with new ones for free. |
D.Attracting more customers for the bookstalls. |
A.They are much too expensive. | B.They must lie along the Seine. |
C.They must be painted green. | D.They are not a Paris landmark. |
A.Paris Bookstalls Being Moved for Safety Reasons |
B.Paris Bookstalls Make the Banks of Seine Attractive |
C.Arguments over the Location of Paris Bookstalls |
D.Paris’s Preparation for Olympic Games 2024 |
【推荐3】A Spanish rice dish; secreto de cerdo with pisto—Ibérico Pork with tomatoes, onions, eggplant, and peppers; and chicken and mushroom paella, will be served aboard the International Space Station (ISS) throughout the next week.
That, at least, is what four of the eleven crew members aboard the ISS will be eating, after a SpaceX Falcon 9 rocket lifts off on April 8,2022 from Cape Canaveral, Florida, carrying the Crew Dragon spacecraft. The flight, sponsored by the Houston-based company Axiom Space and known as Ax-1, is commanded by Axiom vice president and former astronaut Michael López-Alegría. Also on board are three business owners and charitarians: American Larry Connor, Canadian Mark Pathy, and Israeli Eytan Stibbe—each of whom paid an estimated $55 million per seat for their 20-hour journey to the station and the eight days they will spend aboard.
Actually, they are not the first space tourists to the ISS—eleven in total over the past two decades; and all of them were adventurers who paid to fly aboard crewed by professional astronauts. AX-1 is the first fully private mission to the station—but not the last.
In a pre-launch press conference, Connor said, “We’ve spent anywhere from 750 to over 1,000 hours training. We’re going to do some 25 different experiments covering over 100 hours of research.” One such experiment will involve a brain headset that will conduct real-time electroencephalograms (EEGs) of the crew as they fly and experiments on in vitro stem cells.
There will also be time for a moving remembrance. Stibbe, the second Israeli to fly in space, once piloted military jets under the command of Ilan Ramon, the first Israeli astronaut, who died in the 2003 disintegration of the space shuttle Columbia. Several pages from Ramon’s diary survived the crash and Stibbe will carry them into the space.
Space is a hard business, a dangerous business, and an expensive business. But it’s also an emotional one. “Ramon was a good friend,” Stibbe added respectfully, “He was my commander.”
1. Why does the author show the dishes at the beginning?A.To present the whole menu in the space mission. |
B.To attract readers’ interest and introduce the topic. |
C.To show the enjoyment of the crew members during the flight. |
D.To highlight the wealth and social status of the crew members. |
A.To maintain the ISS. | B.To provide space travel. |
C.To help people settle in space. | D.To send Spanish food to space. |
A.Fully-prepared and significant. | B.Expensive but worthwhile. |
C.Difficult and dangerous. | D.Adventurous and challenging |
A.Because he wants to continue writing the diary. |
B.Because he can use Ramon’s diary as instructions. |
C.Because he once piloted military jets under Ramon’s command. |
D.Because he wants to show respect for Ramon in this way. |