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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
49
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.
According to Paragraph 4, which of the following is TRUE about this technology?
选项
A、Muscle, fat and other cells are necessary components of the tissue.
B、Scientists take tissues from live stocks.
C、Tissues are sold into market after cultivation completes.
D、Cultivated cells are suitable for food processing and consumption.
答案
A
解析
细节题。根据题干关键词technology和“顺序出题”原则可定位至第四段。A项是原文的同义替换,对应第四句“a form of tissue comprising of muscle,fat and other cells that is suitable for food processing and consumption”,故正确。B项张冠李戴,第二句说的是“muscle cells are taken from live animals,from which stem cells are isolated”. 原文是muscle cells are taken,而选项中说的是take tissues,故排除。C项与原文表述不符,最后一句提到this tissue will be processed and formed into products,而选项中认为在培养完成后就会进入市场,忽视了加工环节,故错误。D项也属于张冠李戴,第四句说“a form of tissue comprising of muscle,fat and other cells that is suitable for food processing and consumption”,由此可知,适合食品加工和消费的是组织而不是细胞,故也排除。
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0
考研英语二
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