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One in three UK consumers throw away food just because it reaches the use-by date (使用期限), but 60% of the food we throw away each year is safe to eat.

In order to help detect spoilage (变质) and reduce food waste for supermarkets and consumers, researchers have developed spoilage sensors for meat and fish packaging. The researchers say the sensors could also finally replace the use-by date — a widely used indicator of being fresh and eatable.

The sensors cost two US cents each to make. Known as “paper-based electrical gas sensors (PEGS)”, they detect spoilage gases in meat and fish products. The information provided by the electronic nose is received by a smartphone, and then you can know whether the food is fresh and safe to eat.

The researchers made the sensors by printing carbon electrodes (电极) onto a special type of paper. The materials are eco-friendly and harmless, so they don’t damage the environment and are safe to use in food packaging. The sensors, combined with a tiny electronic system, then inform nearby mobile devices, which identify and understand the data about spoilage gases.

Lead author Dr. Firat Guder of Imperial’s Department of Bioengineering said, “Although they’re designed to keep us safe, use-by dates can lead to eatable food being thrown away. They don’t always reflect its actual freshness. In fact, people often get sick from food-borne diseases due to poor storage, even when an item is within its use-by date. These sensors are cheap enough, so we hope to see supermarkets using them within three years. Our goal is to use PEGS in food packaging to reduce unnecessary food waste.”

【小题1】What is the purpose of PEGS?
A.To test the freshness of food.B.To make food taste better.
C.To help supermarkets store food.D.To keep the meat and fish fresh.
【小题2】What can we know about the sensors in paragraph 4?
A.They are made of special paper.B.They don’t produce pollution.
C.They are built in mobile devices.D.They directly show people information.
【小题3】What does Dr. Firat Guder say about use-by dates?
A.They are not completely reliable.
B.They determine the freshness of food.
C.They can help reduce food waste.
D.They help prevent food-borne diseases.
【小题4】What is the text mainly about?
A.The process of developing spoilage sensors.
B.A new device in packaging to reduce food waste.
C.The application of spoilage sensors in food processing.
D.Use-by dates’ influence on supermarkets and consumers.
22-23高二上·山西长治·期末
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You may have heard of the word “pub”. It is short for public house. There are around 60,000 pubs in the U.K. One of the oldest pubs, Ye Olde Fighting Cocks in St. Albans, Hertfordshire, is located in a building that dates back to the eleventh century.

【小题1】 People talk, eat, drink, meet their friends and relax there. Pubs often have two bars, one usually quieter than the other, and many have a garden where people can sit in summer. Children can go into pub gardens with their parents.

Groups of friends normally buy “rounds” of drinks. 【小题2】 It is sometimes difficult to get served when pubs are busy: The bar staff will usually serve those who have been waiting the longest at the bar first.

Most pubs offer a complete range of beers, local and imported, with German, Belgian and French beers being in demand. 【小题3】 As a matter of fact, pubs sell soft drinks, too.

The legal age to purchase alcohol is 18 in the UK. People aged 16 and 17, with the license’s permission, may have only one glass of wine during a meal. 【小题4】 It is illegal to sell alcohol to someone who already appears drunk. A fourteen-year-old may enter a pub unaccompanied by an adult if he orders a meal. Children may enter a pub with their parents until 9 p.m., which lets families enjoy reasonably priced pub meals together. 【小题5】 Customs in British pubs differ from those in American bars. In most pubs in the U.K., you must go to the bar to order drinks and food and pay for your purchases immediately.

A.Pubs are an important part of British life.
B.British people like drinking beers in pubs.
C.And it also allows pubs to play their traditional roles as community centers.
D.In the salon bar the atmosphere is quieter and there are fewer people.
E.But they must be with an adult and the adult orders it.
F.Most people might think pubs are places where people simply drink alcohol.
G.The person whose turn it is will buy drinks for all the members of the group.

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➢Combination of ingredients that's more effective than individual nutrients (营养物质).
➢No artificial flavourings, fillers or sweeteners.
➢Supports fat-burning during digestion.
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SOY|The high-quality non-GMO soy (非转基因大豆) used in Almased is an environmentally friendly, sustainable source of plant protein. A single serving of Almased supplies 27 grams of protein.

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【小题1】If you are on a diet, Almased could be a good choice because __________.
A.its nutrients are easier to absorbB.it can help burn fat
C.secret ingredients are includedD.it cures common diseases
【小题2】Why does Almased stand out among other similar products?
A.It manages to mix different ingredients together.
B.Selected ingredients can stay fresh as ever.
C.Soy, yogurt and honey are specially treated.
D.Superior natural materials generate uniqueness.
【小题3】What can we learn from the last paragraph?
A.Almased can replace our regular routine diet.
B.It's hard to make Almased appeal to everyone.
C.There seem various ways of serving Almased.
D.Almased has just the same taste as plain yogurt.

(CNN) — No matter how you like your hot dogs prepared, with mustard (芥末酱), ketchup or chili, we can all agree on one thing — hot dogs have become part of American culture. And this year, more than ever, hot dogs are red hot; in March zksq, the data firm IRI reported that sales were up by as much as 127% ,and that was well before grilling season started. But while hot dogs may feel “all-American,” they’re something else.

Also known as the frankfurter (法兰克福熏肠), this specific style of cased sausage was originally thought to be from the town of Frankfurt-am-Main in Germany, but hot dog historians argue that sausage culture, native to Eastern Europe and, particularly Germany, has no specific town of origin.

“A good number of the early Germans came from the Palatines, which is a general area surrounding the actual city of Frankfurt, explains Dr. Bruce Kraig at Roosevelt University in Chicago. Frankfurt, Kraig said, refers to the region of origin, though the actual food does not necessarily come from Frankfurt itself.

The traditional German hot dog, when it arrived in the United States, was a mixture of both pork and beef; the all-beef hot dog, as we now know, takes its roots from Jewish-American butchers, who, due to Jewish restrictions in food choice, chose not to use pork in their meat mixture.

Brought over by German immigrants in the mid-1800s, hot dogs began their path into the American time spirit in New York City. Hot dog carts (手推车), where they were a natural fit for the sandwich-loving New Yorkers, who already preferred to eat on the go, were easy to spot on the street. “Germans have sausage culture, so they eat sausage from butcher shops,” Kraig said. “The moment they appeared with the first German immigrants, Americans became crazy with the German idea of sausage eating on the street.”

【小题1】What can we learn about American hot dogs?
A.They are gaining more popularity.
B.They are red hot in all seasons.
C.They are cooked in American way.
D.They had their origin in America.
【小题2】Why are hot dogs known as frankfurter?
A.People think they originated in Frankfurt.
B.All-beef hot dogs have a German tradition.
C.They are consumed much more in Germany.
D.Sausage culture is deeply rooted in Europe.
【小题3】What can we infer from the last paragraph?
A.Hot dogs are traditional German food.
B.Hot dogs arrived in America in the 1800s..
C.Germans eat hot dogs from butcher shops.
D.Hot dogs have become part of American life.
【小题4】Which can serve as the best title of the passage?
A.Hot dogs — all American.
B.What is behind hot dogs?
C.Americans love hot dogs.
D.What are hot dogs made of?

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