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It will be made in a similar way to brewing beer. We are not talking about a new kind of drink, however, but describing a new in
It will be made in a similar way to brewing beer. We are not talking about a new kind of drink, however, but describing a new in
admin
2022-03-27
96
问题
It will be made in a similar way to brewing beer. We are not talking about a new kind of drink, however, but describing a new industry aiming to grow meat in the lab. This new food is known as clean meat, cultured meat or cultivated meat.
Demand for meat has never been higher, but the way we produce it today is unsustainable. So scientists around the world are learning to grow meat and seafood in their labs without the need for farms or livestock. They have had considerable success—the world’s first lab-grown beef burger was cooked and tasted in London in 2013, though at a price of around $250,000, but costs have dropped since then. The challenge now is to turn these lab-based successes into food that can be sold on supermarket shelves at reasonable prices.
This revolution is desperately needed. The world’s population is growing, with another 2 billion expected by 2050. Demand for meat is expected to grow by 70 percent, significantly increasing the pressure on limited resources such as land and water. This in turn will drive climate change. Today, livestock farming is responsible for 15 percent of global greenhouse gas emissions and is a key cause of deforestation. If meat could be grown in the lab instead of on farms, it could create an alternative to traditionally-produced meat and help reduce the environmental footprint for meat production.
Cultured meat is produced using some of the same technologies biologists have used for decades to grow animal cells. First, muscle cells are taken from live animals, from which stem cells are isolated and then cultured in the lab. The next stage is more difficult, however. The cultured cells must then be grown and separated into a form of tissue comprising of muscle, fat and other cells that is suitable for food processing and consumption. Finally, this tissue will be processed and formed into products such as burger meat, sausages or shrimp meat.
Currently, around 60 start-ups around the world are developing and improving the cultured meat process to make different meats and seafood. And they are all looking to scale up production while bringing down costs. So when will the fruits of this cellular agriculture reach the supermarket shelves? In the next few years we can expect a few launches of small-scale products in high-end restaurants. It will be a pretty expensive burger in a restaurant in Hong Kong or San Francisco, however, by 2030 you might see them on supermarket shelves at a decent price.
"Brewing beer" is mentioned to________.
选项
A、indicate that cultured meat is also made by human being
B、introduce a new industry with similar producing method
C、show the similarity between two technologies
D、illustrate how beer is produced
答案
B
解析
例证题。根据题干关键词Brewing beer可定位至第一段第一句It will be made in a similar way to brewing beer. 即“有一种食物的制作方法与酿造啤酒类似”,后文介绍了 but describing a new industry aiming to grow meat in the lab,说明本段的主要目的是介绍一种生产方法与酿造啤酒相似的新行业,因此B项正确。C项是迷惑选项但要仔细分析整段的内容才能推断出该句不是提到“酿造啤酒”的根本目的,故排除。A项和D项都不是提及“酿造啤酒”的真正目的。故也排除。
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0
考研英语二
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