1、1阅读理解 说明文精选大题A.【2018 年全国卷】We may think were a culture that gets rid of our worn technology at the first sight of something shiny and new, but a new study shows that we keep using our old devices(装置) well after they go out of style. Thats bad news for the environment and our wallets as these outdated
2、 devices consume much more energy than the newer ones that do the same things.To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life from when it
3、s minerals are mined to when we stop using the device. This method provided a readout for how home energy use has evolved since the early 1990s. Devices were grouped by generation. Desktop computers, basic mobile phones, and box-set TVs defined 1992. Digital cameras arrived on the scene in 1997. And
4、 MP3 players, smart phones, and LCD TVs entered homes in 2002, before tablets and e-readers showed up in 2007.As we accumulated more devices, however, we didnt throw out our old ones. “The living-room television is replaced and gets planted in the kids room, and suddenly one day, you have a TV in ev
5、ery room of the house,” said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007. Were not just keeping these old devices we continue to use them. According to the analysis of Babbitts team, old desktop monitors and box TVs with cathode ray tub
6、es are the worst devices with their energy consumption and contribution to greenhouse gas emissions（排放）more than doubling during the 1992 to 2007 window.So whats the solution（解决方案）? The teams data only went up to 2007, but the researchers also explored what would happen if consumers replaced old pro
7、ducts with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.1. What does the author think of new devices?A.
8、They are environment-friendly. B. They are no better than the old.C. They cost more to use at home. D. They go out of style quickly.22. Why did Babbitts team conduct the research?A. To reduce the cost of minerals.B. To test the life cycle of a product.C. To update consumers on new technology.D. To f
9、ind out electricity consumption of the devices.3. Which of the following uses the least energy?A. The box-set TV. B. The tablet.C. The LCD TV. D. The desktop computer.4. What does the text suggest people do about old electronic devices?A. Stop using them. B. Take them apart.C. Upgrade them. D. Recyc
10、le them.【答案】1. A 2. D 3. B 4. A【解析】本文是一篇科普说明文。文章讲述了新旧电子设备的差别，旧电子设备耗能高，不环保。所以作者主张使用新电子设备。1.观点态度题。根据文章第一段中的 Thats bad news for the environment and our wallets as these outdated devices consume much more energy than the newer ones that do the same things.可知，使用旧的电子设备对环境和我们的钱包都是坏消息。这些过时的设备做相同的事情要消耗比新设备更多
11、的能量。由此推知作者认为新电子设备环保、节能。故选 A。2. 细节理解题。根据文章第二段中的 To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life 可知，Babbitts team 研究的目的是弄清楚这些设备用了多少电。故选 D。3.
12、 细节理解题。根据文章最后一段中的 They found that more on-demand entertainment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.可知，平板电脑是耗能最少的电子设备，可以降低 44%的耗能。故选 B。4. 推理判断题。根据文章的整体内容可知，因为旧的电子设备耗能高，不环保。所以作者建议停止使用旧的电子设备。故选 A。B【2018 年天津卷】Theres a new frontier in 3D printing th
13、ats beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isnt stopping there.Food production3With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a
14、wedding cake. Not everybody can do that it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to “re-create forms and pieces” of food that are “exactly the same”, freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it
15、 serves are 3D-printed, rather than farm to table.Sustainability(可持续性）The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food pri
16、nting could probably contribute to the solution. Some experts believe printers could use hydrocolloids (水解胶体) from plentiful renewables like algae(藻类 ) and grass to replace the familiar ingredients(烹饪原料). 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock “food“
17、that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.NutritionFuture 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, “Food printing could allow consumers to print food with customized nutritio
18、nal content, like vitamins. So instead of eating a piece of yesterdays bread from the supermarket, youd eat something baked just for you on demand.”ChallengesDespite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to
19、a paste(糊状物) before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some
20、experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.5. What benefit does 3D printing bring to food production?A. It helps cooks to create new dishes.B. It saves time and effort in cooking.C. It improves the cook
21、ing conditions.4D. It contributes to restaurant decorations.6. What can we learn about 3D food printing from Paragraphs 3?A. It solves food shortages easily.B. It quickens the transportation of food.C. It needs no space for the storage of food.D. It uses renewable materials as sources of food.7. Acc
22、ording to Paragraph 4, 3D-printed food _.A. is more available to consumersB. can meet individual nutritional needsC. is tastier than food in supermarketsD. can keep all the nutrition in raw materials8. What is the main factor that prevents 3D food printing from spreading widely?A. The printing proce
23、ss is complicated.B. 3D food printers are too expensive.C. Food materials have to be dry.D. Some experts doubt 3D food printing.9. What could be the best title of the passage?A. 3D Food Printing: Delicious New TechnologyB. A New Way to Improve 3D Food PrintingC. The Challenges for 3D Food Production
24、D. 3D Food Printing: From Farm to Table【答案】5. B 6. D 7. B 8. C 9. A【解析】本文是一篇科普类短文阅读。文章主要介绍了 3D打印技术在食物上的应用取得了进展，但目前仍面临着许多方面的挑战。5.推理判断题。根据文章 Food production中叙述了没有经验的人可以用 3D打印机做出复杂的巧克力雕塑和美丽的婚礼蛋糕，以及餐厅能够用 3D打印出所有的菜肴和甜点，从而可以推断出 3D打印的优势是节省了做饭的时间和精力。故选 B。6.细节理解题。根据文章第三段 Some experts believe printers could u
25、se hydrocolloids (水解胶体) from plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原料).可知，3D 打印机可以使用可再生材料作为食物来源。故选 D。7.推理判断题。根据文章第四段 Food printing could allow consumers to print food with customized nutritional content, like vitamins.（食品打印可以让消费者打印定制营养的食物） ，从而可5以推断出 3D打印
26、出来的食物可以满足个人营养需求。故选 B。8.细节理解题。根据文章最后一段 most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad.可知，阻止 3D打印食物进一步广泛使用的原因是原料必须是干的，含水多的肉和牛奶不能应用于 3D打印因为很容易坏。故选 C。9.主旨大意题。文章主要介绍了 3D打印技术在食物上的应用取得了进展，但目前仍面临着许多方面的挑战。所以用标题 3D Food Printing: Delicious
27、New Technology，故选 A。模拟精做A【2018 年秋四川省棠湖中学高三期末】Cities usually have a good reason for being where they are, like a nearby port or river. People settle in these places because they are easy to get to and naturally suited to communications and trade. New York City, for example, is near a large harbour at
28、 the mouth of the Hudson River. Over 300 years its population grew gradually from 800 people to 8 million. But not all cities develop slowly over a long period of time. Boom towns grow from nothing almost overnight. In 1896, Dawson, Canada, was unmapped wilderness(荒野). But gold was discovered there
29、in 1897, and two years later, it was one of the largest cities in the West, with a population of 30,000.Dawson did not have any of the natural conveniences of cities like London or Paris. People went there for gold. They travelled over snow-covered mountains and sailed hundreds of miles up icy river
30、s. The path to Dawson was covered with thirty feet of wet snow that could fall without warming. An avalanche(雪崩 ) once closed the path, killing 63 people. For many who made it to Dawson, however, the rewards were worth the difficult trip. Of the first 20,000 people who dug for gold, 4,000 got rich.
31、About 100 of these stayed rich men for the rest of their lives.But no matter how rich they were, Dawson was never comfortable. Necessities like food and wood were very expensive. But soon, the gold that Dawson depended on had all been found. The city was crowded with disappointed people with no inte
32、rest in settling down, and when they heard there were new gold discoveries in Alaska, they left Dawson City as quickly as they had come. Today, people still come and go to see where the Canadian gold rush happened. Tourism is now the chief industry of Dawson City its present population is 762.10. Wh
33、at attracted the early settlers to New York City?A. Its business culture.B. Its small population.6C. Its geographical position.D. Its favorable climate.11. What do we know about those who first dug for gold in Dawson?A. Two-thirds of them stayed there.B. One out of five people got rich.C. Almost eve
34、ryone gave up.D. Half of them died.12. What was the main reason for many people to leave Dawson?A. They found the city too crowded.B. They wanted to try their luck elsewhere.C. They were unable to stand the winter.D. They were short of food.13. What is the text mainly about?A. The rise and fall of a
35、 city.B. The gold rush in Canada.C. Journeys into the wilderness.D. Tourism in Dawson.【答案】10. C 11. B 12. B 13. A【解析】这是一篇说明文。文章主要介绍了 Dawson这座城市的发展原因、过程与现状。10.细节理解题。根据文章第一段中 Cities usually have a good reason for being where they are, like a nearby port or river. People settle in these places because
36、they are easy to get to and naturally suited to communications and trade. New York City, for example, is near a large harbour at the mouth of the Hudson River.可知，人们选择在河边或港口设城是因为交通方便，便于做生意。而纽约就是在哈德森河口附近的一个大港口，故纽约吸引早期移民的原因是它的地理位置，故 C正确。11.细节理解题。根据文章第二段最后一句 Of the first 20,000 people who dug for gold,
37、4,000 got rich. About 100 of these stayed rich men for the rest of their lives.可知，在最初挖黄金的两万人中有 4000人变富有，所以是五分之一的人变富了，故 B正确。12.细节理解题。根据文章最后一段中 and when they heard there were new gold discoveries in Alaska, they left Dawson City as quickly as they had come.可知，人们离开 Dawson的主要原因是听说在 Alaska发现了黄金，也就是他们要去别的
38、地方寻找发财的机会。故 B正确。13.主旨大意题。第一段简要介绍城市发展的原因，引出 Dawson这一城市的兴起，第二段介绍了该城市兴起的原因，第三段介绍人们选择离开该城市的原因及现在的状况，所以全文围绕 Dawson这个城市的发展起7伏。故 A正确。B【2018 届豫南九校高三下学期第一次联考】Many of us have reached in our pockets, feeling a vibration （振动）, wrongly believing our mobile phones have just rung. The phenomenon even has a name: p
39、hantom vibration syndromeand found it is surprisingly common.Now scientists believe that we are so alert（警觉） for phone calls and messages we are misinterpreting slight muscle spasms （痉挛） as proof of a call. Robert Rosenberger, an assistant professor at the Georgia Tech Institute of Technology has st
40、udied the delusional calls. He said sufferers describe a vague tingling feeling which they think is their mobile phone indicating it has received a text message or call while on silent. But when the device is retrieved, there was no one on the other end.Dr. Rosenberger said “I find so many people sa
41、y, This happens to me, but I thought I was the only one. I thought I was odd. ”It seems that the syndrome particularly affects people at the beck and call of mobile phones or pagers. A 2010 study by Michael Rothberg and colleagues found that nearly 70 per cent of doctors at a hospital in Massachuset
42、ts suffered phantom vibrations. A more recent study of US college students found the figure was as high as 90 per cent.While the odd feeling is widespread, it does not seem to be considered a grave problem. Dr. Rosenberger said: “its not actually a syndrome in a technical sense. Thats just the name
43、thats got stuck to it.” He added: “Only 2 per cent of people consider it a problem.”While widespread, the scientific community has not yet invested much effort in getting to the bottom of why we suffer phantom calls.Dr. Rosenberger said: “People are guessing it has something to do with nervous energ
44、y. The cognitive（认知的） scientists are talking about brain chemistry, cognitive pathways changing. But its not like they have brain scans to go on.” He said: “We have a phone call in our pocket all the time and it becomes sort of an extension of ourselves. We have this sort of readiness to experience
45、a call. We feel something and we think, OK, that could be a call.”14. Why do some people mistake slight muscle spasms for a call?A. They all have a vivid imagination.B. They are sensitive to calls and messages.C. There are few calls and messages in their life.D. Slight muscle spasms affect them more
46、 than other people815. Which of the following are more likely to have phantom vibration syndrome than others?A. Doctors.B. University professors.C. College students.D. The cognitive scientists.16. In Dr. Rosenbergers opinion, phantom vibration syndrome _.A. isnt a kind of disease actuallyB. is consi
47、dered a problem by most peopleC. is a serious problem ignored by peopleD. has something to do with brain chemistry17. What does the text mainly talk about?A. Most people have phantom vibration syndrome.B. How to keep away from phantom vibration syndrome.C. How to reduce phantom phone vibrations.D. P
48、eople care too much about phantom phone vibrations【答案】14. B 15. C 16. A 17. A【解析】这是一篇社会生活类说明文。文章介绍了一种非常普遍的病症振动幻听综合症。14. 细节理解题。由第二段中的“Now scientists believe that we are so alert（警觉） for phone calls and messages we are misinterpreting slight muscle spasms （痉挛） as proof of a call”可知，科学家们认为我们对手机电话和短信如此警
49、觉以至于我们会把轻微的肌肉痉挛误认为是电话。故结合选项，B 选项正确。15. 细节理解题。由第三段中的“A 2010 study by Michael Rothberg and colleagues found that nearly 70 per cent of doctors at a hospital in Massachusetts suffered phantom vibrations. A more recent study of US college students found the figure was as high as 90 per cent”可知，90%的大学生患有振动幻听综合症。故 C选项正确。16. 细节理解题。由第四段中的“its not actually a syndrome in a technical sense”可知，Dr. Rosenberger认为，从专业角度来说，这并不是一种综合症。也就是说，他认为这并不是一种病。故 A选项正确。17. 主旨大意题。第一段是文章中心段。该段主要介绍了振动幻听综合症是一种非常普遍的现象。大部分人都患有振动幻听综合症。下文简单分析了这种现象的原因以及科学家们对此的看法。
