【推荐1】After lab-grown meat, are you getting ready for animal-free cow’s milk? A San Francisco startup believes it has found a solution.

Through a combination of yeast (酵母), cow DNA and plant nutrients, Perfect Day claims to have created a product identical in taste and nutritional value to cow’s milk, but without any cows involved. It will satisfy consumers who love eating dairy (乳制品的) ice-cream, cheese and yoghurt, but loathe factory-style farming and its environmental footprint.

Sales of milk alternatives such as soy, coconut and more recently pea milk are expected to be on the rise. But until now they have not cut traditional milk and dairy production. “The alternatives for yoghurt, cheese and ice-cream are so bad that people don’t even want to try them,” says Perfect Day co-founder Ryan Pandya.

The missing ingredient (成分) in plant-based alternatives is cow’s milk proteins. To make the animal-free cow’s milk, Perfect Day puts cow DNA — which is readily available due to decades of research by the dairy industry — into yeast and adds sugar to create cow’s milk proteins through fermentation (发酵). These milk proteins are then combined with sugar, fats and nutrients to create the final product.

“We’re taking plant nutrients and transforming them into animal proteins the same way that cows do, using the same milk proteins as found in cow’s milk, but much more efficiently, because we’re using a yeast cell not an animal,” said Pandya.

Although comparisons have been made with lab-grown meat, Pandya said they are not using novel technology. Many people initially go ‘oh is this like lab or test-tube milk’, but that’s wrong. There are no test tubes in our fermentation process. The meat folks are trying to invent technology that doesn’t exist today, but our milk is made through techniques that have been in use for more than three decades.

1. What does the underlined word “loathe” mean in Paragraph 2?

A．Ignore.

B．Doubt.

C．Tolerate.

D．Hate.

2. Which of the following is a part of Perfect Day’s milk-making process?

A．Mixing cow DNA with yeast and sugar.	B．Adding sugar and fats to plant milk.
C．Mixing plant milk with cow milk.	D．Adding cow DNA to plant milk.

3. What does Pandya think of their product?

A．It tastes like test-tube milk.	B．It needs to be tested further.
C．It is produced with existing technology.	D．It is well-received by green food lovers.

【推荐3】THERE is an old saying: “Don’t judge a book by its cover.” It means that you shouldn’t build your first impression of someone on his or her looks alone. But according to a new study, the famous sayingmight not be correct after all. A group of US scientists have found that the first impression we have of someone else is actually right most of the time.
In the study, scientists asked participants to look at a photograph of a person and make a quick judgment about him or her. A month later, the participant and the person in the photo were introduced, and scientists were shocked to find that their judgments oftenmatch those that they had made originally.
It’s true that simply looking at someone won’t provide you with as much information.But, according to scientists, when makinga first impression, people rely more on their instincts (直觉) than on logic (逻辑).“They focus on how that person makes them feel,” Paul Eastwick of the University of Texas told Live Science. “It is very hard to get a sense of this information when simply viewing a profile(简介).As soon as one sees another person, an impression is formed and what we see can sometimes dominate what we know.”
Of course, no one can be right about everything and your instincts can go wrong sometimes. But even if it is proven to be wrong, once people form an opinion about someone, they have a hard time getting over that opinion later on.
The findings help explain why people always tidy themselves up before meeting guests or doing job interviews.
“Their face constantlyremindsus of that firstimpression,” said Rule. People may learn more about another person over time once they get close to each other, but first impressions remain very important and seem difficult to forget.
1. What did the US scientists of the University of Texas find out in their recent study?

A．It’s unwise to judge a book by its cover.

B．It’s better to judge by logic than by instincts.

C．First impressions tend to last more often than not.

D．Profiles provide more information than you have imagined.

2. The underlined word “dominate” is closest in meaning to         .

A．determine	B．change
C．cover	D．acquire

3. We can conclude from the article that ______.

A．first impressions never go wrong

B．it’s difficult to change a wrong first impression

C．it takes a long time to form a first impression

D．first impressions are easy to change after people know each other better

【推荐1】A smiling panda and a walking Chinese lantern will be the mascots (吉祥物) of the 2022 Winter Olympics and Paralympics in Beijing.

The mascots were known to the public on Sept.17, 2019 at a ceremony in Beijing. Beijing Mayor Chen Jining described them as lovely, unique, and awesome. He said they shows Chinese people’s longing for the 2022 Beijing Winter Olympics in a visually attractive way and extends Chinese people’s hospitality to friends throughout the world.

The panda, named Bing Dwen Dwen, is the Olympic mascot. Colourful circles around its face symbolize skating tracks and 5G technology, according to the website of the Beijing organizing committee. “Bing, the Chinese word for “ice”, shows purity and strength, while Dwen Dwen means sincerity, liveliness, and health”, the website said. The choice of the iconic animal, considered the national treasure, is not a surprise to people in China. While many applaud Bing Dwen Dwen for its cuteness on social media, some are not favorably impressed by-the lack of creativity in choosing a panda. The giant panda was one of the five mascots of the 2008 Beijing Summer Olympics, and it was also the symbol for the Asian Games in Beijing in 1990.

“Today is an important step on a milestone in Beijing’s journey to make history as the first ever, in Olympic history, to host both summer and winter editions of the Olympic Games,” International Olympic Committee (IOC) president Thomas Bach said at the ceremony.

Based on a traditional red lantern, Paralympic mascot Shuey Rhon Rhon creates a cheerful atmosphere of the Chinese Lunar New Year, which will fall around the time of the Winter Games, the organizing committee said. It is sporting (穿戴) a yellow scarf, a circle of yellow doves around its head, and a traditional Chinese paper-cut. “Shuey” means snow in Chinese and “Rhon Rhon” means “inclusiveness” and “harmonization”, implying that the world civilizations communicate with each other and live in harmony, the committee said.

The two mascots were selected from more than 5800 submission from 35 countries.

1. What does Chen Jining think of Bing Dwen Dwen and Shuey Rhon Rhon?

A．They represent the IOC.	B．They have great artistic value.
C．They show Chinese people’s warmth.	D．They have much room for improvement.

2. Why are some people not satisfied with choosing Bing Dwen Dwen?

A．Because pandas are the national treasure.	B．Because it is too colourful for the Olympics.
C．Because its design is lacking in creativity.	D．Because a panda has ever been chosen as a mascot.

3. What can we learn about Shuey Rhon Rhon from the text?

A．It is symbol of Chinese culture.	B．It is designed by a foreign artist.
C．It is a representative of competition.	D．It is a mixture of 35 different cultures.

4. What’s the best title of the passage?

A．The Amazing Stories of a Panda and a Walking Chinese Lantern

B．The first Asian City to Host Two Editions of the Olympics

C．Beijing 2022 Mascots for Olympic and Paralympic Winter Games

D．The comparisons of different official mascots for the Olympics

【推荐2】The Pyeong Chang 2018 Winter Olympics ran from 9 to 25 February.As the next host city of the Winter Olympics,Beijing presented a show for the handover ceremony.Beijing’s eight-minute show at the closing ceremony of Pyeong Chang 2018demonstrateda confident and modern China and extended China's warm welcome to the whole world in a high-tech way,said Zhang Yimou,chief director of the show.

“Modern China is not the same as it used to be ten years ago.We have held the Olympics and told the world our history of five thousand years.This time at Pyeong Chang 2018,we prefer to present to the world the new achievements of contemporary China rather than repeat the story long before,"said Zhang.

“The show has combined high technology and traditional performance together.In order to highlight winter sports,we have adopted the gestures of skating and skiing.Our performers are not the traditional dancers or singers,but they can manage both winter sports and performances,"added Zhang.

One of the biggest challenges both performers and high-tech equipment needed to overcome was the extreme temperature.The closing ceremony of PyeongChang 2018 Winter Olympics was held in the PyeongChang Olympic Stadium,which is an outdoor stadium,and the temperature was freezing cold during the Games.

1. The underlined word"demonstrated"in paragraph 1 can be replaced by“________”.

A．Achieved

B．showed

C．repeated

D．challenged

2. What was one of the main difficulties for Beijing's eight-minute show in PyeongChang 2018according to the passage?

A．To combine high technology and traditional performance together.

B．The time for performers to prepare.

C．The extreme temperature for both performers and high-tech equipment to withstand.

D．The theme of the show.

3. Which of the following statements is NOT true according to the passage?

A．Performers should be familiar with the gestures of skating and skiing.

B．China has told the world our history of five thousand years.

C．Zhang Yimou directed the opening ceremony of Pyeong Chang 2018.

D．China will be the next host country of the Winter Olympics.

4. Which of the following statements can best summarise the main idea of the passage?

A．Beijing’s eight-minute show at PyeongChang 2018 demonstrated a modern China.

B．Performers of Beijing’s eight-minute show were busy preparing.

C．Beijing's eight-minute show was performed in cold weather.

D．The closing ceremony of PyeongChang 2018 was held in the PyeongChang Olympic Stadium.

【推荐3】Although the weather is very hot now, the carnival of ice and snow is getting closer. The preparation work for Beijing Winter Olympic Games, which are expected to begin on Feb 4, 2022, has entered its final stage. In January, 2021, the ice-making work on the “Ice Ribbon”, a landmark venue for the Beijing Winter Olympics, was completed.

In the Winter Olympics, where races can be won or lost by a small time gap, tiny imperfections in the ice can make all the difference. “It’s not just a block of ice like you’d normally think of, like ice cubes sitting in your freezer,” told Kenneth Golden, a US mathematician who studies the structures of ice. “It’s a much more fascinating and complex substance than people would normally think.”

The first step for building any ice rink (溜冰场) is to purify the water to remove dissolved solids like salts and minerals. Such impurities don’t fit in the regular hexagonal (六边形的) structure of ice that forms as water freezes. The more pure the water is, the more consistent the ice surface.

In addition to the need for excellence in the raw materials of ice-making, technology is also very important. As one of the most advanced technologies for winter sports venues, a carbon dioxide (CO₂) cooling technology has been applied on a large scale for the Beijing Winter Olympic Games. CO₂ is not new when it comes to ice-making. However, it has been gradually replaced by the man-made refrigerant, like Freon.

With increasing attention toward climate change, the old refrigerant has come into use again. As an element of the atmosphere, CO₂ doesn’t damage the ozone layer. Although CO₂ is a greenhouse gas, its greenhouse effect is much lower than that of other synthetic refrigerants. The Winter Olympics venues adopted CO₂ instead of Freon as a refrigerant in ice-making, which will reduce carbon dioxide emissions greatly.

“We believe these technological innovations will bring Beijing 2022 to spectators all over the world in a more impressive way,” told Gao Bo from the Media Operations Department of the Organizing Committee of the Beijing Winter Olympic Games.

1. Which can replace the underlined word “consistent” in Paragraph 3?

A．United.

B．Firm.

C．Clean.

D．Rough.

2. Why has CO₂ cooling technology been applied to the Winter Olympic Games?

A．It’s the most advanced technologies for ice-making.

B．CO2 is more efficient than other refrigerants.

C．CO2 is more environmentally-friendly than Freon.

D．CO2 has already existed in the atmosphere.

3. What is Gao Bo’s attitude to CO₂ being applied to ice-making?

A．Indifferent.

B．Opposed.

C．Doubtful.

D．Favourable.

4. Which of the following is a suitable title for the text?

A．The Beijing Winter Olympic Games Is Coming.

B．Beneath Olympic Ice.

C．The Use of Refrigerants in Olympic Games.

D．The Structure of Ice.