Anything made of plastic or metal can be 3D printed nowadays — bicycles, toys, tools... even replacement body parts! But the latest trend in 3D printing may be food. Scientists and chefs are putting their heads together to create printed food.
Several 3D printers designed for food are now on the market. Anything that can be made into a soft wet mixture can be squeezed (挤压) from a tube in a 3D printer. Instead of ink, these printers can use fruits, vegetables, proteins, sweets, and more. This makes for lots of combinations that can be healthy, yummy, and even artistic.
Most 3D printers don’t actually cook the food, at least not yet. Engineers at Columbia University’s Creative Machines Lab invented an oven (烤箱) that cooks 3D-printed pizza with laser beams (激光束). A special computer program controls the lasers, heating each part of the pizza to perfection. Unlike regular ovens, lasers can carefully cook each thin piece of 3D-printed food.
In the future, food can be made with a 3D printer to meet our needs. For example, a hospital could design meals to meet patients’ dietary needs. Vitamins, minerals, and even medicines can be mixed right in. A 3D printer can make food appealing. Foods that someone may not like might be more attractive after 3D printing. Maybe that food you dislike wouldn’t seem so bad if it looked like a castle!
The idea of 3D printed food may seem very modern. In fact, NASA (美国国家航空航天局) has been researching the topic for more than ten years. On a long travel, it’s important to have food that is easy to make, tastes good, and has the nutrients astronauts need to stay healthy. Printing food on demand may soon be into the space!
1.What will be the latest trend in 3D printing?
A.3D printed bicycles.
B.3D-printed toys.
C.3D-printed food.
D.3D-printed body parts.
2.What is special about the laser oven?
A.It is invented by students at Columbia University.
B.It is made from strong laser beams.
C.It can make 3D-printed food carefully.
D.It can cook each part of 3D printed food perfectly.
3.What does the underlined word “appealing” in paragraph 4 mean?
A.Attractive.
B.Fresh.
C.Healthy.
D.Terrible.
4.What can be the best title for the text?
A.Anything Can Be 3D Printed
B.3D Printing: the Future of Food
C.NASA’s New Research
D.How to Cook 3D Printed Pizza
What is Hanukkah?
Hanukkah (光明节) is the Jewish Festival of Lights. It lasts for eight days and is usually celebrated in November or December. Hanukkah traditions include lighting candles, giving presents, playing games and eating food fried in oil, like doughnuts or potato pancakes.
Fried food is traditional at Hanukkah. latkes are fried pancakes made with potatoes, onions, eggs, flour and oil. Jam filled doughnuts are another popular Hanukkah treat. Dairy food such as cheese and cheesecake are also traditionally eaten at this festival.
The traditional Hanukkah candle holder is called a Hanukkah menorah (烛台) or hanukkiah and it has been used as a Jewish symbol since ancient times. A Hanukkah menorah has nine candles which are lit at night-time during Hanukkah.
In London you can see a giant menorah lit up with candles for the Hanukkah London event, in celebration of the Jewish Festival of Lights. This huge menorah in Trafalgar Square is put close to the Christmas tree for a truly multicultural winter celebration.
Playing with the dreidel (陀螺) is a traditional Hanukkah game played in Jewish homes in Britain and all over the world, and rules may vary from family to family. There are various games you can play with the dreidel.
It's traditional to give presents or money to family and friends at Hanukkah. Hanukkah Gelt refers to money given as a gift at the festival. ''Gelt'' is the Yiddish word for money. Children are often given chocolate coins wrapped in gold foil (金箔).
People also give Hanukkah greetings cards. The cards often show a picture of a menorah or dreidel. One UK online greetings cards company even combines Christmas and Hanukkah to make a card with the greeting ''Very Merry Chrismukkah wishes''!
Happy Hanukkah!
1.What are the traditional foods of Hanukah?
A.Fried pancakes and cheesecake.
B.Potato cakes and doughnuts.
C.Eggs and fried pancakes.
D.Cheese and onion doughnuts.
2.What is a long used Jewish symbol during Hanukkah?
A.A candle.
B.The dreidel.
C.Hanukkah Gelt.
D.A Hanukkah menorah.
3.What do we know about Hanukkah?
A.Hanukkah is only celebrated in December.
B.Playing with the dreidel is a traditional Hanukkah game.
C.Children are often given money wrapped in gold foil.
D.People will make Hanukkah greetings phone calls.
Xixia Dinosaur Relic Park
Lying at the center of Funiu Mountain World Geopark, Xixia Dinosaur Relic Park in Nanyang, Henan province is a tourist place with high ornamental (观赏性的) and scientific value. The area has cool average summer temperature of 19℃, making it a paradise to escape the summer heat.
Xixia Dinosaur Relic Park is a large scale dinosaur theme park, which has the world’s most well preserved dinosaur fossil (化石) eggs. The discovered eggs are the rarest of its kind in the world, which are called the ninth wonder of the world, after the Terracotta Warriors of the First Qin Emperor.
Scenic Spot Level: AAAAA
Ideal (最合适的) Sightseeing Season: April to late November
Opening Hours: 8:00 - 17:30 in winter; 7:30 - 18:30 in spring, summer and autumn
Ticket Price: 130 yuan ($18.81)
Free Tickets:
①Children below 1.2 meters;
②Persons aged 70 or above with valid certificate (有效证件).
Discounted Tickets: 50 yuan
①Children with height between 1.2 and 1.4 meters;
②Students and those aged 60 or above with valid certificate.
Online Booking: www.ljlkly.com/shopcart/
1.Which of the following is the ideal time to visit the park?
A.January.
B.March.
C.May.
D.December.
2.What is special about the park?
A.It has the world’s most well preserved dinosaur fossil eggs.
B.It is a small-scale but world famous dinosaur theme park.
C.It is called the ninth wonder of the world.
D.It has hundreds of dinosaur fossil eggs.
3.How much should a young couple with their 1.3-meter tall son pay for the tickets?
A.150 yuan.
B.230 yuan.
C.310 yuan.
D.360 yuan.
阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。续写的词数应为150左右。
It seemed I’d done everything I’d ever wanted to do in my life, but I had one regret. I was born in 1898, the oldest of five kids. Papa couldn’t spare me to go to school, so I worked in the fields with him till I was 21 years old.
Everywhere I went, I learned some hard lessons about what happens to a man who even can’t read the alphabet. People cheat you out of wages. They sell you a ticket to one city, take your money and hand you a ticket to somewhere else.
By 1928, I’d been wandering for nine years. I met a woman named Elzenia. We fell in love, married and moved to Dallas, where I got work fixing roads for the city. When Amelia, the oldest of our seven children, first went to school, I took my wife aside. “Elzenia,” I said. “I don’t want the kids to know I can’t read or write.”
In 1938, one day my boss called me in. “George,” he said. “No one knows those machines like you do. I’d like to promote you.” But my thrill and surprise were cut short when he said, “Fill out this application and we’ll get you a raise.” I couldn’t admit the truth. I thanked him and walked out of his office. I did stay right where I was, until I turned 65 and my boss made me retire. But I didn’t stop working. For the next 25 years, I lived a happy life, but it still seemed to me like something was missing.
A young fellow handed me a piece of paper. It’s information about adult education classes. People can learn to read and write. Now I’m 102. I thought of my friends and neighbours and what they might think if they found out I couldn’t read. After all these years, my secret would be out. But all my life I’ve wanted to read. It was high time for action.
Paragraph 1: The young man drove me to a huge building and led me into a spacious classroom, which was crowded with elderly people like me.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Paragraph 2: I’m still going to school.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
假定你是高中生李华，阳光中学国际部招募志愿者，通过云课堂(Cloud Classroom)用英语为学生上一堂健康课，请写信应聘，内容包括：
1. 自身优势；
2. 课堂计划，包括如何应对NCP (新型冠状肺炎)等；
3. 希望获准；
注意：1. 词数80左右；
2. 可适当增加细节，以使行文连贯；
3. 开头和结尾已给出, 不计入总词数。
Dear Sir or Madam,
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Many high school students in the United States get training in construction skills by building real houses. The project 1. (run) by the Waterloo Career Center. The center offers students different programs designed 2. (prepare) them for careers in technical fields.
Students from the Waterloo Community School District 3. (recent) took part in construction training that centered on the skill of masonry (砖石建筑)—work done with stone, brick or concrete materials. The students spent five days at their school learning 4. experienced workers from the Masonry Institute of Iowa, a 5.(profession) organization. The workers taught the students 6. to mix mortar (砂浆)and build walls with bricks and blocks. The students moved the mortar onto 7. (piece) of wood and then added bricks and blocks to form walls.
Chris Busch helped oversee the students’ efforts. As the students worked, Busch 8.(offer) them an important piece of advice. He told the students to be sure to use a leveling tool to check that the wall stands straight and level. West High student Nathan Elliott told the Waterloo-Cedar Falls Courier newspaper that this kind of learning was much better 9. sitting at a computer. Other students also said it got them 10.(excite) about future careers in construction.
