【正文】 e X is 17,500 RMB. That39。 But if the foldable device isn39。 the only question is when and by whom.（1）What can be the best title for the text? A.Foldable age is arriving.C.D.s words? A.The Galaxy Fold still has many problems.C.Companies need to work together to develop foldable phone.（3）What is the problem with foldable phones at the moment? A.They are inconvenient to carry.C.They are unaffordable for most families.（4）What is the author39。Worried.B.Positive.D.” （1）考查主旨大意。t it be great if there were a phone with the powers of a tablet that could be folded up and fit neatly into the hand?”如果有一款具有平板電腦功能的手機，可以折疊起來，整齊地放在手里，那不是很棒嗎?；以及第二段中的“Now something like a tabletshaped but foldable phone is about to bee available.”現(xiàn)在，類似于平板形狀的可折疊手機即將問世。故選B。根據(jù)第五段中的“Justin Denison, called the foldable screen ‘the foundation for the smartphone of tomorrow’.‘It39?！斑@是一塊空白的畫布，我們可以一起做一些美好的事情。丹尼森的話中了解到“可折疊屏幕”具有很大的潛力。 （3）考查細(xì)節(jié)理解。s a price that few people will be able to afford.”然而，目前這些可折疊設(shè)備價格昂貴。這是一個很少有人能負(fù)擔(dān)得起的價格。故選D。根據(jù)最后一段中的“But if the foldable device isn39。可知，作者對可折疊屏幕的未來持的態(tài)度是積極的。 【點評】本題考點涉及細(xì)節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇科普類閱讀，考生需要準(zhǔn)確捕捉細(xì)節(jié)信息，同時根據(jù)上下文進(jìn)行邏輯推理，概括歸納，從而選出正確答案。 Migratory birds (候鳥) flood back to where they reproduce every spring. That migratory behavior is acpanied by some human behavior. In Englishlanguage Wikipedia (維基百科), the online searches for migratory species tend to increase in spring when those birds arrive in the United States, said the lead author John Mittermeier. This finding suggests new ways to monitor changes in the world39。 Mittermeier is encouraged by the search results. He mented, I think there39。re not interacting with native species anymore. And so in that sense, it was really exciting and quite unexpected for me to see people39。 Richard Grenyer, Associate Professor from the University of Oxford, says search data is useful to conservation biologists, By using these big data approaches, we can direct our attention towards the difficult questions in modern conservation: which species and areas are changing, and where are the people who care the most and can do the most to help.（1）What have researchers found about species searches? strengthen ties among people. affect the animal movements. differ in language backgrounds. reflect animal migration seasons.（2）What is the purpose of writing Paragraph 3? summarize the research process. further support the research findings. show the variety of species searches. present researchers39。s service. about Wikipedia behavior. at people39。s not getting close to nature.（4）Why does Richard think such search data is useful? helps to aim at conservation targets. increases interest in big data approaches. keeps track of trends in biologists39。他們的在線物種搜索遵循季節(jié)性動物遷徙的模式。它還展示了一種新的方式來了解人們有多關(guān)心自然，以及哪些物種和地區(qū)可能是最有效的保護(hù)目標(biāo)。根據(jù)第一段中的“Their online species searches follow the patterns of seasonal animal migrations (遷徙).”可知關(guān)于物種搜索，研究人員發(fā)現(xiàn)了他們遵循季節(jié)性動物遷徙的模式。 （2）考查推理判斷。即第三段的寫作目的是為了進(jìn)一步支持研究結(jié)果。 （3）考查細(xì)節(jié)理解。s Wikipedia interest closely related to changes in nature”可知Mittermeier看到人們對維基百科的興趣是與大自然的變化密切相關(guān)的，感到非常興奮和意外。 （4）考查細(xì)節(jié)理解。即他認(rèn)為這些搜索數(shù)據(jù)可以有助于設(shè)定保護(hù)目標(biāo)。 【點評】本題考點涉及細(xì)節(jié)理解和推理判斷兩個題型的考查，是一篇科研類閱讀，要求考生在捕捉細(xì)節(jié)信息的基礎(chǔ)上，根據(jù)上下文進(jìn)行邏輯推理，從而選出正確答案。 A study found wireless signals are able to pass through bags and suitcases to judge the sizes of dangerous metal objects and identify them. These items could include weapons, chemicals, laptops and batteries for bombs, the research team said on Tuesday. The detection system analyzes what happens when wireless signals go through and bounce off objects or materials. The approach, which the paper states, works by separating the wireless interference(干擾)caused by two factors of objectsthe material and shape. Most dangerous objects such as weapons are usually metal or liquid, which have significant interference, researchers said. It uses channel state information (CSI) that is readily available in lowcost WiFi devices. This could have a great impact on protecting the public from dangerous objects, said Yingying Chen, a coauthor of the study, There39。s hard to set up expensive screening equipment like what39。 The peerreviewed study, which recently won a best paper award at the 2018 IEEE Conference on Communications and Network Security, is now published online. Future work will continue to focus on ameliorating the accuracy of identifying objects and imaging shapes and volumes, researchers said.（1）What does paragraph 3 talk about? A.B.The principle the study is based on.The benefit of the study findings.（2）What39。It saves people in danger of natural disasters.B.It uses antennas to pick up networks39。It protects personal information from being disturbed.（3）Why did the researchers study the device according to Yingying Chen? A.To make full use of WiFi.C. privacy.D.Confirming.B.Discovering.D. （1）考查段落大意?？芍xB。根據(jù)第四段中的“noting its design can inspect bags or luggage without being an exposure to privacy.”可知，不用打開和檢查人們的個人物品，避免了侵犯隱私，可知選D。s hard to set up expensive screening equipment like what39。在大型公共場所，很難像機場那樣設(shè)置昂貴的安檢設(shè)施。 （4）考查詞義猜測。 【點評】本題考點涉及細(xì)節(jié)理解，詞義猜測，推理判斷和段落大意四個題型的考查，是一篇科研類閱讀，要求考生在捕捉細(xì)節(jié)信息的基礎(chǔ)上，進(jìn)一步根據(jù)上下文的邏輯關(guān)系，進(jìn)行分析，推理，概括和歸納，從而選出正確答案。 Studies show that older people tend to remember the positive things in life rather than the negative things, while younger people remember the positive and negative equally well. The dominant psychological theory to explain this is that older people are aware of their limited time left, so they prioritize positive emotional experiences. But about a decade ago, I worked with biologist Robert Trivers on his idea that there was an evolutionary basis for older people39。 When our ancestors needed more energy than usual, perhaps while being chased by a tiger, they had to