Question

    The Science magazine reported that scientists had successfully grown meat in their laboratory by November, 2018. The news aroused heated discussion among the public. Is the meat safe? Is it any different? Why do we have to grow meat in a lab? People have tons of questions about this. And the scientists said that the lab-grown meat is produced when cells from animals are grown under lab conditions. It isn't like plant-based meat substitutes (替代品) made from vegetable proteins (蛋白质), since cell-based meat is grown from actual animal cells. This means that it is an animal product, so not suitable for vegetarians.

Is cell-cultured meat the same as ordinary meat? The muscle fibers (纤维) produced in the lab are the same as those found in steak, said leading researchers in this technology at Maastricht University in The Netherlands. But they pointed out that to get the same nutrient. (营养物) content that is found in red meat, they need to make some changes to the procedure. Scientists say they are also looking into changing the type of fat in lab-grown meat, for example.

Some people have concerns with growing meat in the lab. Some say this method of meat production would result in less land and water use. Others argue that growing meat in the lab would influence the environment more negatively than our traditional way of raising cattle. It would take massive amounts of energy resources to produce meat in this way, they say.

Some groups have petitioned (请求) the US Food and Drug Administration (FDA) to better define the term “meat”. They want to know if we are buying the traditionally produced type or the cultured variety. Hopefully we will see some labeling guidelines on these products before they show up in grocery stores. And that may be a few years away. Regulatory issues and cost - the first lab-grown hamburger patty (肉饼) cost $330,000 (2274,900 yuan) - could delay the arrival of cultured meat.

1.It’s reported that the scientists have successfully ______ in their lab in November.

A.grown meat B.eaten meat

C.got nutrient D.made a hamburger patty

2.According to the passage, the lab-grown meat ______.

A.is the same as ordinary meat

B.has the same muscle fibers as those in pork

C.has the same nutrient content as that in red meat

D.will perhaps have different types of fat

3.From the last paragraph, we can know ______.

A.the US FDA feels it necessary to label different kinds of meat

B.grocery stores have already been selling cultured meat to the public

C.it's for sure that no one will buy cultured meat in the future

D.cultured meat will meet challenge because of regulatory issues and cost

Answer

1.A

2.D

3.D

【解析】

这篇短文讲述的是《科学》杂志报道说科学家们在实验室里培育出了人造肉，这件事在公众中间引起了热烈的讨论，人们对此有不同的态度。

1.细节理解题。根据短文开头 “The Science magazine reported that scientists had successfully grown meat in their laboratory by November, 2018.”可知，科学家们在实验室里培育出了肉。故选A。

2.细节理解题。根据短文第二段 “Scientists say they are also looking into changing the type of fat in lab-grown meat, for example.”可知，科学家们在研究改变实验室培育的肉类中的脂肪类型。故选D。

3.推理判断题。根据短文最后一段 “Regulatory issues and cost - the first lab-grown hamburger patty (肉饼) cost $330,000 (2274,900 yuan) - could delay the arrival of cultured meat.”可知，监管问题和成本问题会推迟非养殖肉的到来，也就是非养殖肉的一个挑战。故选D。