There’s a new frontier in 3D printing that’s beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn’t stopping there.
Food production
With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that -- it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to “re-create forms and pieces” of food that are “exactly the same,”, freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.
Sustainability(可持续性)
The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydro-colloids(水解胶体)from plentiful renewable like algae(藻类)and grass to replace the familiar ingredients. 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock “food” that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.
Nutrition
Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, “Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday’s bread from the supermarket, you’d eat something baked just for you on demand.”
Challenges
Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.
1.What benefit does 3D printing bring to food production?
A.It helps cooks to create new dishes. B.It saves time and effort in cooking.
C.It improves the cooking conditions. D.It contributes to restaurant decorations.
2.What can we learn about 3D food printing from Paragraphs 3?
A.It solves food shortages easily. B.It quickens the transportation of food.
C.It needs no space for the storage of food. D.It uses renewable materials as sources of food.
3.According to Paragraph 4, 3D-printed food _______.
A.is more available to consumers B.can meet individual nutritional needs
C.is tastier than food in supermarkets D.can keep all the nutrition in raw materials
4.What is the main factor that prevents 3D food printing from spreading widely?
A.The printing process is complicated. B.3D food printers are too expensive.
C.Food materials have to be dry. D.Some experts doubt 3D food printing.
5.What could be that best title of the passage?
A.3D Food Printing: Delicious New Technology B.A New Way to Improve 3D Food Printing
C.The Challenges for 3D Food Production D.3D Food Printing: From Farm to Table
九年级英语阅读单选简单题
There’s a new frontier in 3D printing that’s beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn’t stopping there.
Food production
With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that -- it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to “re-create forms and pieces” of food that are “exactly the same,”, freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.
Sustainability(可持续性)
The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydro-colloids(水解胶体)from plentiful renewable like algae(藻类)and grass to replace the familiar ingredients. 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock “food” that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.
Nutrition
Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, “Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday’s bread from the supermarket, you’d eat something baked just for you on demand.”
Challenges
Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.
1.What benefit does 3D printing bring to food production?
A.It helps cooks to create new dishes. B.It saves time and effort in cooking.
C.It improves the cooking conditions. D.It contributes to restaurant decorations.
2.What can we learn about 3D food printing from Paragraphs 3?
A.It solves food shortages easily. B.It quickens the transportation of food.
C.It needs no space for the storage of food. D.It uses renewable materials as sources of food.
3.According to Paragraph 4, 3D-printed food _______.
A.is more available to consumers B.can meet individual nutritional needs
C.is tastier than food in supermarkets D.can keep all the nutrition in raw materials
4.What is the main factor that prevents 3D food printing from spreading widely?
A.The printing process is complicated. B.3D food printers are too expensive.
C.Food materials have to be dry. D.Some experts doubt 3D food printing.
5.What could be that best title of the passage?
A.3D Food Printing: Delicious New Technology B.A New Way to Improve 3D Food Printing
C.The Challenges for 3D Food Production D.3D Food Printing: From Farm to Table
九年级英语阅读单选简单题查看答案及解析
3D printing technology may not be a new thing in some foreign countries. But in May this year, at Shenzhen Convention and Exhibition Center. Many visitors were attracted by a 3D printer.
The machine looks similar to an ordinary printer and can print a “statue” in about 90 minutes after scanning anything, including a person.
The printer prints layer by layer. For example, if we want to print a 30-cm-tall statue, the computer will calculate* the layers and print 460 layers in total*. It can also print people and clothes. You can stand for scanning for just about three minutes, and a statue will be finished about two hours. The cost for a statue of a man is about 1000yuan. The printer, which costs about 500,000yuan, is from the USA.
“We want to introduce this technology to people, and find more chances here.” said an engineer, “There is a company in USA that offers 3D printing services to people. Many people come to design their own thing. It is very cool. We hope that the printer will encourage more Chinese people to be more creative.”
1.A 3D printer_______.
A. is a common machine
B. prints layer by layer
C. can make clothes and people
D. is widely used in Shenzhen
2.How much should you pay if you want to have a statue of yourself printed?
A. 50,000yuan B. 1000yuan
C. 500,000yuan D. 100yuan
3.The engineer showed people the 3D printer to_______.
A. design new things
B. print statues for them
C. introduce this technology and find changes
D. calculate the layers
4.The best title for the passage is_______.
A. 3D printer made in Shenzhen
B. 3D printing looks for bigger market
C. 3D printing services in the USA
D. Design your own statue
九年级英语阅读理解中等难度题查看答案及解析
Have you ever wanted to be in a TV show or movie? There is a new app that lets you put yourself in your favorite shows. But some people are worried about this app.
The app is called ZAO.A tech company called Momo released it last month. It lets users to put their face over another person's face in a video or photo. Users can put themselves into popular TV shows and movies. For example, you can put your face into the movie Titanic. Your face will replace Jack's or Rose's. It looks very natural. Since the app came out on Aug 30, it has been the most—downloaded free app in China as of Sept 10, according to App Annie, a website that tracks app data.
But some people worry about how the app could be abused. People can use the app to make themselves look like politicians or celebrities. They could also violate(侵犯)celebrities' right of publicity(公开权)by using their faces to make videos. People could also make videos for illegal use.
Other people worry that they might lose their facial recognition data. It is possible that hackers could steal this data from app companies and use it to break into users' phones and steal their money.
1.This passage is about .
A.a computer game B.a tech company
C.a popular app D.a famous TV show
2.People can use ZAO to .
A.perform in real TV shows
B.put their faces into videos and photos
C.download movies for free
D.make themselves look more beautiful
3.Paragraph 3 and Paragraph 4 talk about .
A.how to use ZAO the right way
B.how to stop hackers from using ZAO
C.why people worry about ZAO
D.why so many people like ZAO
4.If Tommy uses ZAO and makes himself look like Li Xian,he may .
A.spend lots of money on the app B.be caught by the police
C.violate Li Xian's right of publicity D.be rich and successful
5.From this passage,we learn that ZAO is .
A.illegal to use
B.unpopular with its users
C.used by many people because it's safe
D.discussed by its users holding different opinions
九年级英语阅读单选困难题查看答案及解析
Thanks to the new traffic rules ______ at the beginning of this year, there are fewer and fewer traffic accidents. The public also like to cooperate with the government to set up a safer walking environment.
A. found out B. watched out C. carried out
九年级英语单项填空中等难度题查看答案及解析
It was the beginning of a new term.As a_______teacher in that school,I didn’t know any of the students.A little girl was standing at the gate of the classroom.She looked very shy.
I walked up to her and ______why she stood there.But she said nothing.Then a boy shouted,“She is from Grade Four,the worst student in her grade.” I looked at the little girl.She didn’t seem to be the smart kind. I_______why her teacher asked her to stay in Grade Three. I took her hand and _______ her into the classroom. “Sit here.Now you are my student and I’m your teacher,” I said.She still said nothing,but suddenly began to cry.
I later learnt that her parents died in a car accident.She became sad and didn’t like talking to others after that.
She learnt very_______. I gave her respect(尊重) and never looked down upon(鄙视) her as I know everybody deserves (值得) respect.I helped her after school,and she was making ______little by little.As time went by,she was not as _____ as before.At the end of the term,she seemed to have forgotten all her sadness.She was not among the best students when she left that school, but_______ ,she was not that shy and sad little girl any more.
In the following _______,she would send me a card on each Thanksgiving Day.Three days ago,I _______an invitation to her wedding(婚礼).And now,I am at her wedding,and she is smiling brightly. Everyone deserves respect and everyone can be happy.
1.A. new B. beautiful C. strict D. famous
2.A. told B. answered C. knew D. asked
3.A. thought B. understood C. forgot D. remembered
4.A. poured B. threw C. led D. turned
5.A. slowly B. quietly C. well D. quickly
6.A. friends B. decision C. progress D. surprises
7.A. smart B. shy C. angry D. careful
8.A. at least B. at first C. at once D. at birth
9.A. days B. weeks C. months D. years
10.A. wrote B. sent C. refused D. received
九年级英语完型填空困难题查看答案及解析
It was the beginning of a new term. As a ________teacher in that school, I didn’t know any of the students. A little girl was standing at the gate of the classroom. She looked very shy.
I walked up to her and______why she stood there. But she said nothing. Then a boy shouted, “She is from Grade Four, the worst student in her grade.” I looked at the little girl. She didn’t seem to be the smart kind. I_____why her teacher asked her to stay in Grade Three. I took her hand and led her into the classroom.
“Sit here. Now you are my student and I’m your teacher,” I said. She still said nothing, but suddenly began to cry.
I later learnt that her parents died in a car accident. She became sad and didn’t like talking to others after that.
She learnt very _____. I gave her respect(尊重) and never looked down upon (鄙视) her as I know everybody deserves(值得) respect. I helped her after school, and she was making _______ little by little. As time went by, she was not as ______as before. At the end of the term, she seemed to have forgotten all her sadness. She was not among the best students when she left that school, but ______, she was not that shy and sad little girl any more.
In the following ______, she would send me a card on each Thanksgiving Day. Three days ago, I received an invitation to her wedding(婚礼). And now, I am at her wedding, and she is smiling brightly.
Everyone deserves respect and everyone can be happy.
1.A. new B. beautiful C. strict D. famous
2.A. told B. answered C. knew D. asked
3.A. thought B. understood C. forgot D. remembered
4.A. slowly B. quietly C. well D. quickly
5.A. friends B. decision C. progress D. surprises
6.A. smart B. shy C. angry D. careful
7.A. at least B. at first C. at once D. at birth
8.A. days B. weeks C. months D. years
九年级英语完形填空中等难度题查看答案及解析
—What do you think of the 3D-printed ______?
—I’m afraid they are not safe enough to live in.
A. tools B. buildings
C. cars D. toys
九年级英语单项填空中等难度题查看答案及解析
—What do you think of the 3D-printed ______?
—I’m afraid they are not safe enough to live in.
A. tools B. buildings C. cars D. toys
九年级英语单项填空中等难度题查看答案及解析
—Mom, I’ve just got a new job in a big company.
—Congratulations! Try to make yourself so that the company doesn’t want to lose you.
A. valuable B. comfortable C. fashionable D. strong
九年级英语单选题中等难度题查看答案及解析
My father was born in a small town in the US. He wanted to get out and begin a new adventure. He began that adventure by traveling to different cities in the US before going on to other countries. He took his wife and three daughters with him and went wherever the road took him.
It's easy to feel lonely when you're on the road. As my mother said repeatedly ,“We made lots of new friends on our trip—most of them were workers who fix cars, since we often spent hours in repair shops during the journey."
Getting along sometimes seemed impossible. There were always a lot of arguments, especially among us back-seat passengers about who had to sit in the middle. But even if it was hard, we did learn a lot about forgiveness. When in the Philippines, we drove to Quezon City one day. It should have been a one-hour drive but was nearly three, thanks to bad roads and worse traffic.“Did you put our suitcases (行李箱) in the car?" My father asked my mother as we arrived. "No," she said. "I thought you did." That
was how a seven-hour car trip turned into a 16-hour car trip, which was mostly spent in silence. In situations like that, we had to learn to let go of our anger. We were stuck (困在) in a rolling box with the same people for the rest of the journey. Even if I sometimes felt like opening the car door and pushing one of my sisters out, I kept my feelings to myself.
This is why road trips were like moving universities to us. We earned our PhDs(博士学位) in how to get along with other people just by traveling in that old car.
1.Who did the writer’s family make many friends with on their trip?
A.Other travelers. B.Shop owners. C.Car repair workers. D.Tour guides.
2.What does the underlined word "forgiveness" in Paragraph 3 mean?
A.原谅 B.放弃 C.坚持 D.遗忘
3.What do we know about their trip in the Philippines?
A.They took a train to Quezon City.
B.The writer's mother lost their suitcases.
C.One of the writer's sisters was pushed out of the car.
D.They spent more time driving than they planned.
4.What word would the writer use to describe these trips?
A.Adventurous. B.Educational. C.Boring. D.Surprising.
九年级英语阅读单选困难题查看答案及解析