Recent development has made possible machines...

Recent development has made possible machines that print, cook, and serve a large number of foods. And the industry(产业) isn’t stopping there.

Food production

With a 3D printer, a cook can print complicated(复杂的) 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 Food printer to “re-create forms and pieces” of food that are “exactly the same,” freeing cooks to finish 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 world’s population(人口) is expected to grow to 9.6 billion by 2050, and some experts estimate (估计) that food production will need to be raised by 50 percent to keep present levels(水平). Sustainability is becoming a necessity. 3D food printing could probably help solve the problem. Some experts believe printers could use hydrocolloids (水解胶体) from rich renewable materials(原料) like algae and grass to replace(代替) the ingredients(烹饪原料). 3D printing can reduce fuel use and emissions(排放). The stores of the future might store "food" that lasts for years, freeing up shelf space and reducing transportation and storage requirements.

Nutrition(营养)

Future 3D food printers could make food healthier. Hod Lipson, a professor at Columbia University, said, “Food printing could allow customers(消费者) to print food with customized(定制的) 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(要求).”

Challenges

Though there are great developments in 3D food printing, the industry has many challenges to overcome. Most ingredients must be changed to a dry powder(粉末) before a printer can use them, and the printing process takes a lot of time, because ingredients interact (相互作用)with each other in very complex ways. Besides, most of the 3D food printers now use only dry ingredients, because meat and milk products may easily go bad. Some experts doubt about 3D food printers, believing they are more suitable for fast food restaurants than homes and high-end restaurants.

1.What advantage(好处) does 3D printing bring to food production?

A.It teaches cooks to create new dishes. B.It saves time and effort(努力) in cooking.

C.It improves the cooking conditions. D.It helps to decorate the restaurants.

2.What does the underlined word “raise” mean in paragraph 3?

A.募集 B.导致 C.培育 D.增加

3.According to Paragraph 4, 3D-printed food ________.

A.is easier for consumers to get B.can meet personal nutritional needs

C.is tastier than food in supermarkets D.can keep all the nutrition in raw(生的) materials

4.What is the main factor(因素) that prevents 3D food printing from spreading widely?

A.The printing process is not long. 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 the 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中等难度题查看答案及解析

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

A 13-year-old American has made a cheap machine that can help blind people read.

The blind can read by usingBraille– a system of small bumps (隆起物) that the blind touch to read the letters. The machine that makes these small bumps usually costs at least $2,000. It is called Braille writer. The American schoolboy, Shubham Banerjee, made a new Braille writer from a Lego tool that lets people create robots. Banerjee has called his new machine the Braigo – a combination (组合) of the words Braille and Lego. It costs just $ 350. It works by changing electronic text into Braille and then printing it using a computer or mobile machine.

Banerjee designed (设计) his Braigo last year for a school science exhibition. Since then, he has caught the interest of Silicon Valley in the USA. The big technology company Intel spent money on Banerjee’s machine last November, but they did not say how much money they put in. Banerjee also got $35, 000 from his father to help him start the project. His father works as a computer engineer (工程师) at Intel. He spoke about why he gave so much money to his son, saying:”We as parents started to be interested more, thinking that he’s on to something and this invention has to continue.” Banerjee told the AP News: “My dream would probably be having most of the blind people…using my Braigo.”

1.What is Braile in Line 2?

A. A system of bumps to help the blind read.

B. The name of a new invention.

C. A very cheap machine.

D. A Lego robot.

2.How much will one save if he buys a Braigo instead of a usual Braille writer?

A. Over $2,000.　　 B. Less than $350.

C. Exactly $35,000.　　 D. At least $1,650.

3.What does the Braigo change into Braille?

A. Photocopies.　　 B. Voices.

C. Electronic text.　　 D. Computer languages.

4.Why did Banerjee design his invention?

A. He did it as a hobby.

B. Intel told him to do it.

C. He did it for a school science project.

D. He wanted to get money from his father.

5.Banerjee’s parents wanted him to continue to _______.

A. catch Intel’s interest　　 B. work on his invention

C. be a computer engineer　　 D. use the new Braille writer

九年级英语阅读单选困难题查看答案及解析

A 13-year-old American has made a cheap machine that can help blind people read.

The blind can read by using Braille – a system of small bumps (隆起物) that the blind touch to read the letters. The machine that makes these small bumps usually costs at least $2,000. It is called Braille writer. The American schoolboy, Shubham Banerjee, made a new Braille writer from a Lego tool that lets people create robots. Banerjee has called his new machine the Braigo – a combination (组合) of the words Braille and Lego. It costs just $ 350. It works by changing electronic text into Braille and then printing it using a computer or mobile machine.

Banerjee designed (设计) his Braigo last year for a school science exhibition. Since then, he has caught the interest of Silicon Valley in the USA. The big technology company Intel spent money on Banerjee’s machine last November, but they did not say how much money they put in. Banerjee also got $35, 000 from his father to help him start the project. His father works as a computer engineer (工程师) at Intel. He spoke about why he gave so much money to his son, saying:”We as parents started to be interested more, thinking that he’s on to something and this invention has to continue.” Banerjee told the AP News: “My dream would probably be having most of the blind people…using my Braigo.”

1.What is Braile in Line 2?

A. A system of bumps to help the blind read.

B. The name of a new invention.

C. A very cheap machine.

D. A Lego robot.

2.How much will one save if he buys a Braigo instead of a usual Braille writer?

A. Over $2,000. 　　　　　 B. Less than $350.

C. Exactly $35,000. 　　 D. At least $1,650.

3.What does the Braigo change into Braille?

A. Photocopies. 　　　　　 B. Voices.

C. Electronic text. 　　 D. Computer languages.

4.Why did Banerjee design his invention?

A. He did it as a hobby.

B. Intel told him to do it.

C. He did it for a school science project.

D. He wanted to get money from his father.

5.Banerjee’s parents wanted him to continue to _______.

A. catch Intel’s interest 　　　 B. work on his invention

C. be a computer engineer 　　　 D. use the new Braille writer

九年级英语阅读理解中等难度题查看答案及解析

The Chinese government has made______possible for people to live happy lives．

A. that　　 B. this　　 C. it

九年级英语单选题中等难度题查看答案及解析

In recent years advances in medical technology have made it possible for people to live longer than in the past. New medicines and instruments are being developed every day to extend（延长）life. However，some people，including some doctors， are not in favour of these life extending measures，and they argue that people should have the right to die when they want. They say that the quality of life is as important as life itself，and that people should not be forced to go on living when conditions of life have become unbearable（不能忍受的. They say that people should be allowed to die with dignity（尊严） and to decide when they want to die. Others argue that life under any conditions is better.

1.In recent years, people can live longer than in the past,It’s because of_________.

A．the development of medical technology

B．big hospitals

C．good doctors

D．both B and C

2.According to some people， whether a dying patient has the right to die or not is up to_________.

A．the doctors                            B．the surroundings（环境）

C．his or her family                        D．the patient himself or herself

3.The writer’s opinion is_________.

A．death is better than life

B．life is better than death

C．neither death nor life is good

D．none of the above

4.Why do some patients want to die? Because_______.

A．the doctors are not good

B．the conditions are bad

C．life is too hard

D．they are seriouly ill

九年级英语阅读理解中等难度题查看答案及解析

阅读理解

In recent years advances in medical technology have made it possible for people to live longer than in the past . New medicines and machines are developing every day to extend life. However, some people , including some doctors, are not in favor of these life extending measures, and they say that people should have the right（权利）to die when they want. They say that the quality of life is as important as life itself, and that people should not be forced to go on living when conditions of life have become unbearable . They say that people should be allowed to die with dignity（尊严）and to decide when they want to die. Others don’t agree and say that life under any conditions is better than death and that the duty of doctors is always to extend life as long as possible. And so the battle goes on and on without a definite （明确的）answer.

1.The best title for this passage is ______________.

2. People can live longer than in the past. It’s because _____________.

3.According to some people whether a dying patient has the right to die is up to________.

4. In the writer’s opinion ___________.

5. Why do some patients want to die ?  Because _____________.

九年级英语阅读理解中等难度题查看答案及解析

Researchers have developed paper that can be printed with UV light (紫外线)， free from the need for ink (油墨). People can clear the information away on the light-printable paper by heating it to 120°C and it can be reused more than 80 times.

The research was carried out in order to reduce the effects of paper production on deforestation (滥砍滥伐). The researchers, from Shandong University in China and the University of California, Riverside, said that the secret behind the technology is a color-changing chemical. A thin coating of the chemical can be used on usual paper and turn it into a reusable, light-printable one. Heating the paper for 10 minutes can help clear the information away more quickly.

Professor Yadong Yin, a chemistry professor at the University of California and a co-author of the study, said, “The greatest importance of our work is the development of a new technology to produce an ink-free rewritable paper that has the same feel and appearance as usual paper. Our work is believed to have great economic and environmental influences on the modem society.” Paper production has a bad influence on the environment. It’s the main cause of industrial pollution and paper thrown away by people makes up about 40% of landfills where waste is buried under the ground.

It is predicted that light-printable paper will be inexpensive in the future. The printing process is also more cost-effective than the usual one as no ink is needed. Most importantly, it can be reused many times, which greatly reduces the cost.

1.Why did researchers do the research?

A. To make more money by selling the paper. B. To save more ink and more money.

C. To make people interested in writing on the paper. D. To stop people from cutting down more trees.

2.What does the underlined word “it” refer to?

A. Usual paper. B. The chemical. C. The technology. D. Ink.

3.What can’t we know from Paragraph 3?

A. The rewritable paper looks the same as the usual paper. B. Wasted papa: is the most serious pollution.

C. The research will make a difference to our economic development. D. Our environment will be influenced by the rewritable paper.

4.What are the advantages of the rewritable paper?

a. It can be recycled many times.

b. It can help save money.

c. It is environmentally-friendly.

d. It will help save time.

A. abc B. bed C. acd D. abd

九年级英语阅读单选中等难度题查看答案及解析

1.We can read these passages in some　　　 　．

A.postcards B.letters

C.posters D.novels

2.If you want to see The Time Machine, you can go to see it on　　　 　．

A.Aug.25th B.Aug.30th

C.Sep.5th D.Sep.7th

3.What is the film Wonder Woman about？　　　 　

A.Earth and space B.Love and friendship

C.Nature and humans D.War and Peace

4.If you're interested in aliens, you should watch　　　 　．

A.E.T. B.Wonder Woman

C.The Time Machine D.Mission to Mars

5.The underlined word"mysterious"probably means　　　 　．

A.usual B.crazy

C.strange D.heavy

6.What kind of movies do these films belong to？　　　 　

A.Action films． B.Detective films．

C.Love stories． D.Science fiction．

九年级英语阅读单选中等难度题查看答案及解析

—Our country ___progress in science and culture in recent years.

A. made such

B. has made such

C. made so

D. has made so

九年级英语单项填空简单题查看答案及解析