《2020-2021高三上期末阅读理解D篇汇总》由会员分享，可在线阅读，更多相关《2020-2021高三上期末阅读理解D篇汇总（12页珍藏版）》请在金锄头文库上搜索。
1、2020-2021高三上期末阅读D篇汇总昌平期末D篇DThe constant rise of global demand for protein poses a threat of meat shortage in the agricultural sector. To address this, a few scientists use artificial meat as an alternative to traditional ones, which from the growing process to its benefits proves it does no harm or
2、even it does good to us. Currently, one of the most advanced techniques to grow meat in the lab involves taking cells from an animal and changing them to muscle cells. The cells are then cultured with nutrients and essential vitamins and can be developed to any quantity and then shaped into hamburge
3、rs, steaks or mince, and so it is also called “cultured” meat. “Cultured meat is not genetically engineered,” Dr. Mark Post of Maastricht University says. “It is meat grown from the same cells that produce the meat in the cow, but this time outside the cow.” He believes that cultured meat shouldnt b
4、e any better or worse for you than old-school animal flesh.This may sound like science fiction, but it is not such a strange idea and there are reasons to be excited about it. “The environment impacts of cultured meat could be lower than those of meat produced in the conventional way,” said Hanna Tu
5、omisto, a researcher at Oxford University. The process would require between 7% and 45% less energy than the same volume of conventionally produced meat such as pork, beef or lamb, and could be engineered to use only 1% of the land and 4% of the water associated with conventional meat. Tuomistos res
6、earch also shows that cultured meat could be part of the solution to feeding the worlds growing population, at the same time cutting emissions（排放） and saving both energy and water. Aside from the above benefits, cultured meat should also provide cheap nutrition. Animal protein is an increasing part
7、of diets, as millions of people in rapidly emerging economies are drawn out of poverty and become able to afford more meat in their diets. The pressure this creates has been an important factor in rapidly rising grain prices, deforestation in the Amazon basin, increasing water shortage and rising pr
8、essure to find new farmland. Growing meat artificially could potentially take huge pressure off farmlands around the world. Another benefit would be to help animal welfare and protect endangered species. If most of our meat was grown, there would be no need for factory farms. Conditions for animals
9、could be greatly improved. Elsewhere, it could also stop illegal endangered species hunts by providing an alternative way to produce meat form these species.Exactly how long it takes before the meat is sold in supermarkets depends on the investment in research and development. One thing seems clear:
10、 Unless vegetarianism catches on in a very big way, the worlds demand for meat will soon outpace our supply of cows, chickens, pigs and other edible animals. The health and environmental impacts of cultured meat arent going to be hypothetical（假设的） for much longer.31. What does the underlined word “c
11、ultured” probably mean?A. grown.B. sorted.C. connected.D. shaped.32. Compared with traditional meat, the artificial meat_.A. tastes much better B. contains more nutrients C. saves more natural resources D. changes peoples habit of eating meat33. The author tries to persuade the readers to accept his
12、 argument mainly by_.A. comparing the results from different researches B. explaining the advantages of the artificial meatC. presenting the problems caused by meat shortage D. showing the current situation of food consumption34. Which of the following shows the structure of the passage?IA. B. P1P2P
13、3IC. D. I: introduction P: point SP: sub-pointC: conclusionI: introduction P: point SP: sub-pointC: conclusion房山期末D篇DAs online learning becomes more common and more and more resources are converted to digital form, some people have suggested that public libraries should be shut down and, in their pl
14、ace, everyone should be given an iPad with an e-reader subscription.Supporters of this idea state that it will save local cities and towns money because libraries are expensive to maintain. They also believe it will encourage more people to read because they wont have to travel to a library to get a
15、 book; they can simply click on what they want to read and read it from wherever they are.However, it would be a serious mistake to replace libraries with tablets. First, digital books and resources are associated with less learning and more problems than print resources. A study done on tablet vs book reading found people read 20-30% slower on tablets, retain 20% less information, and understand 10% less of what they read compared to people who read the same information in print.Second, i
