Whether paired with a bottle of nice red wine or a burger, cheese can be a delicious treat. But it is not perhaps, the ideal material to use in printing — unless you are a team of nutritional scientists. One group of researchers used 3D printing to create a cheese. And the cheese could provide a valuable insight for engineers who are still developing materials for 3D printing.
A team from the school of food and nutritional sciences at University College Cork (UCC) conducted a series of tests evaluating the 3D-printed cheese. 3D printing materials need to be fluid (液态) enough to flow but also capable of setting into a definite shape or structure.
After melting the cheese at 75°C (167°F) for 12 minutes, the UCC team then ran it through a modified commercial 3D printer. The machine, which usually prints with plastic, was fitted with a syringe (注射器) to allow it to print with the melted cheese.
The UCC team used several techniques to examine the effects of the 3D printing process on their cheese. They compared the 3D-printed results to processed cheese that had been melted and then cooled, as well as another sample that was left untouched. Cheese that was 3D printed was 45% to 49% softer than the processed cheese, the researchers said. They also discovered that 3D-printed cheese was a little darker in colour and more fluid when melted, though it melted at about the same temperature as processed cheese.
Dr Kelly and his colleagues are now testing other types of dairy products which can be 3D-printed. Dr Kelly said, “We are using mixtures of milk proteins at present to build a product, perhaps a high-protein snack, and designing recipes which might work best for a 3D printer. ”
1.What problems are the engineers facing in 3D printing a cheese?
A.They don't have proper material.
B.They can't find a bottle of nice red wine or a burger.
C.They can't make the cheese very delicious.
D.They know much less than nutritional scientists.
2.How did the researchers use the 3D printer to make cheese?
A.They raised the temperature to 75°C.
B.They added a syringe to the printer.
C.They bought some cheese to paint it.
D.They evaluated the 3D-printed cheese.
3.What is the advantage of the 3D-printed cheese?
A.It melts more easily. B.It tastes more delicious.
C.It costs less money. D.It is much softer.
4.What will Dr Kelly and his colleagues do next according to the last paragraph?
A.Publish a report on their research.
B.Invent a new 3D printer.
C.3D print more milk food.
D.Make more cheese with their machine.
When we walked into the cafe, we were greeted by a waitress who smiled, held out a menu, and pointed to a table. It's only when we asked for a table for six that we realized something was a bit different. The waitress glanced at our group and held up six fingers. That's because all the staff are deaf.
Last month, the Huffington Post visited Smiles Cafe in Granada. The business only employs people who are deaf, from the waiters to the cooks. “My goal is for this cafe to be a mirror for other businesses to lose their fear of hiring people with disabilities," the founder Antonio Bunuel, who is from Spain, told HufPost. “It's also for the people who work here to lose their own fear of getting into the work force," he added, “So they can fly.”
In the city, about 1 person in 15 has a disability. But around 99 percent of people with a disability are unemployed. While the law requires companies to employ two people with disabilities for every 50 employees, many businesses don't. “Smiles Cafe was born out of a provocation. 99 percent of people with disabilities here are jobless. That was wrong!" Bunuel said. “So I decided to open a cafe where all of the employees were deaf to show that it works.
At the cafe, customers order by pointing to items on the menu, which have special symbols to indicate substitutions. For instance, if you're ordering fruit parfait, and you don't want yogurt on it, you just point to the illustration (图示) of the parfait, and then to the image of yogurt with a big red “X" over it. To help customers communicate with staff and learn while they eat, the walls are covered with letters? words and phrases, from “Thank you" to “Welcome" with illustrations that show the corresponding translation. The cafe, now five years old, is a project of the non-profit Centro Social Tio Antonio. “We've opened a small window," the founder said, “If it serves to create awareness, then that's a start.
1.Why did the waitress hold up her fingers when the author ordered?
A.All workers were deaf. B.She didn't want to say anything.
C.She was suffering a throat ache. D.It was a special greeting.
2.What did the founder of the cafe expect his employees to do?
A.Make a big fortune. B.Become well-known in the city.
C.Recover from their illnesses. D.Overcome their fears to work.
3.What does the underlined sentence mean about Smiles Cafe in Para 3?
A.People expected to keep a good volunteering tradition.
B.It was founded to take a challenge of employing the disabled.
C.Founders reached an agreement after discussions.
D.The disabled were worried about their work at first.
4.What is helpful to the customers in the cafe?
A.The deafness of the employees. B.Special symbols on the menu.
C.The non-profit model of the cafe. D.The awareness of the employer.
Wisconsin's Great Lakes are home to great lighthouses. Here are some lighthouses worth visiting along Lake Michigan, from south to north.
Wind Point, Racine
This 108-foot lighthouse on a point north of Racine was built in 1880. It's open for tours and climbs up the tower from 9 a. m. to 3 p. m. the first Sunday of the month, June through October, and from 10 a. m. to 1:30 p. m. the Saturday before that Sunday, July through September. Admission is $ 10 for adults and $ 5 for kids aged between 6 and 11. The park and beach around the lighthouse are open daily from 6 a. m. to 10 p. m.
North Point , Milwaukee
This 74-foot lighthouse alongside a Queen Anne style keeper's quarters is a landmark in the city's Lake Park. After the coast guard decommissioned (停用) it in 1997, it stood vacant until a friendly group restored the structure and opened it as a museum in 2007. Tours are now offered from 1 p. m. to 4 p. m. Saturday and Sunday year round, plus from 10 a. m. to 2 p. m. Thursday and Friday in the summer. Tours cost $ 8 for adults, $ 5 for seniors (65+) and $ 5 for students and kids (5—11).
Port Washington Breakwater
This Art Deco-style lighthouse replaced an older wooden structure in 1935 as part of a Works Progress Administration project. Tours aren't available of the small structure, but visitors can walk along the 2, 500-foot breakwater to get a closer look.
Rawley Point , Two Rivers
This lighthouse is worth a visit not only for its steel tower rising 113 feet above the beach, but also for its location in Point Beach State Forest. Tours are not available of the working lighthouse, but it's viewable and photographable from the beach. In addition to six miles of Lake Michigan shoreline, the state forest has 17 miles of hiking trails to explore.
1.Which lighthouse is used as a museum?
A.Wind Point, Racine. B.North Point, Milwaukee.
C.Rawley Point, Two Rivers. D.Port Washington Breakwater.
2.Where can people appreciate Port Washington Breakwater?
A.Under a wooden structure. B.Along the long breakwater.
C.In Point Beach State Forest. D.On a point north of Racine.
3.Why is Rawley Point NOT available for a visit?
A.It is far off the coast. B.It is located in the center of forest.
C.It is working as a lighthouse. D.It is made of steel.
假如你是红星中学高三学生李华。请根据以下四幅图的先后顺序，以“A Meaningful Activity”为题，给校刊“英语角”写一篇英文稿件。 介绍今年国庆期间，你们班在大兴机场参加志愿活动的全过程。
注意：词数不少于60。
提示词：值机柜台the check-in counter，行李车luggage cart
A Meaningful Activity
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假如你是红星中学高三学生李华，得知下周来自美国的交换生要来你校学习，现征集接待家庭。请你给交换生负责人Jim写一封信，申请成为接付家庭。 内容包括：
1. 表达意愿；
2. 申请理由；
3. 恳请获准。
注意：1. 词数不少于50；
2. 开头和结尾已给出，不计入总词数。
Dear Jim,
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Yours，
Li Hua
Things to Keep Your Brain Sharp and Healthy Later in Life
These behaviors and activities are proven to help keep your brain young.
Keep learning new things.
Learning new information and skills throughout your entire life helps to keep your brain strong even in the later years of life. Activities that have the highest value for brain health are novel and complex to each particular person. What is easy for one person may be challenging for another. 1.
Exercise regularly.
Exercise can improve our energy levels, sense of well-being, sleep, and brain health. 2.Identifying why we do not exercise permits us to systematically break down our barriers, and to slowly change our behaviors towards a healthy lifestyle.
Socialize and have fun!
Friends provide opportunities to enable the sharing of experiences, new learning, challenge, emotions, trust, and understanding. Friendship also provides the necessary motivation towards activity and involvement. Engaging in new pursuits with friends often helps develop new life roles, which provide us with an opportunity to feel appreciated, enjoy life, laugh, and have fun. 3.
Be health conscious.
It is important for us to take control of our health and understand that we are in charge of managing of our bodies. 4. Once we establish our own role in the management of our health, the importance of a close and trusting relationship with our physician becomes apparent.
Slow down and appreciate the silence.
5.Our brains require time to process information more deeply, in order to gain more benefit from our daily experiences. A fast-paced lifestyle can cause chronic stress and have other negative effects on our health and well-being. Reducing demands we place on ourselves is an important step towards stress reduction, and a more fulfilling life.
Studies have shown a relationship between spirituality and the immune system. As we continually learn more about the potential of positive thoughts to influence health, people are beginning to integrate these practices more frequently into their daily lives, and experiencing life-changing results.
A. Engaging in it regularly also reduces the risk of depression and anxiety.
B. Reading gives you a unique pause button for comprehension and insight.
C. The things that challenge you the most have the most value for your brain.
D. Physicians work for us, and when it comes to our bodies, we are the boss.
E. Parent-teacher organizations are great places to develop relationships with other people.
F. Open communication can help the physician make sound decisions regarding our health.
G. Our society is developing quickly, leaving us with little time to relax and process our environment.
