【正文】 主旨大意。發(fā)表在《科學進展》(Science Advances)雜志上的這項新研究將蜜蜂也列入了這一名單。 【點評】本題考點涉及細節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇科研類閱讀，要求考生在捕捉細節(jié)信息的基礎上，進一步根據(jù)上下文的邏輯關系，進行分析，推理，概括和歸納，從而選出正確答案。 Slowly but surely re moving closer and closer to 5G world. From smarthome security to selfdriving cars, all the internetconnected devices in your life will be able to talk to each other at lightningfast speeds with reduced delay, Objectively speaking, the fastest 4G download speeds in the U. S. top out at an average of Mbps. But by parison 5G promises gigabit (千兆) speeds.s pulling in data from other vehicles about road conditions down the lane. It could be weather information, but also connected infrastructure (基礎設施) construction. There39。 Augmented reality glasses and virtual headset haven39。 Ericsson stated at February39。 But don39。s still a lot of work to be done in the meantime, including various trials to make sure the radios play nicely with hardware and infrastructure construction so 5G isn39。The lightingfast speed of 5G.B.The difference between 4G and 5G.D.Exhibition.B.Symbol.D.5G world won39。5G helps to create the artificial intelligence vehicleC.Tech panies will face the fact that smartphones may be replaced（4）What will the author probably tell us next? A.Smart glasses will bee faster and lighter.C.t concentrated in big cities.D. （1）考查段落大意。re moving closer and closer to 5G world.”緩慢但肯定的是，我們離5G世界越來越近了?！惫蔬xA。根據(jù)第二段中的“and that is to say, it is a sign of tim”也就是說，這是時間的標志，”可知，劃線詞的意思是“標志，象征”。 （3）考查推理判斷?！?可知，我們可以從文中推斷，科技公司將面臨智能手機可能被取代的事實。 （4）考查推理判斷。t get too excited. There39。t concentrated only in big cities.”但是不要太激動。”可知，作者接下來可能會告訴我們“如何全面擴大5G覆蓋。 【點評】本題考點涉及段落大意，詞義猜測和推理判斷三個題型的考查，是一篇科普類閱讀，要求考生根據(jù)上下文的邏輯關系，進行分析，推理，概括和歸納，從而選出正確答案。 Threequarters of the world39。 Bird Friendly coffees are shadegrown, meaning the coffee is planted under trees, rather than on the land that has been cleared of all other plants. Coffee experts say shadegrown coffees taste better, because the beans ripen slower than coffee grown in the full sun, resulting in a richer, more plex flavor. Bird Friendly certified coffees grow under biodiverse shade that provides habitat for migratory songbirds and other wildlife, stores carbon and fights climate change. Bird Friendly coffees are also certified organic, meaning they are grown without pesticides, which is better for people and for the planet. Buying Bird Friendly supports the Smithsonian Migratory Bird Center39。One fourth of them have destroyed forest habitat for birds.B.Farmers have been aware of environment protection.D.s a characteristic of Bird Friendly coffees? A.They have a strange flavor.C.They are grown on unpolluted land.（3）How can Bird Friendly farmers earn more money? A.By selling fruits and wood from trees.C.D.Consume less coffee.Order coffee online.C.Donate to coffee farmers.【答案】 （1）D（2）A（3）B（4）C 【解析】【分析】本文是一篇說明文，為了應對嚴重的遷徙鳥類的數(shù)量和棲息地損失，史密森尼的科學家創(chuàng)造了 the Bird Friendly certification 。根據(jù)第一段中的“ In order to deal with severe population and habitat loss, Smithsonian scientists created the Bird Friendly certification. ”可知，科學家們重視咖啡生長地的問題，并以想出應對辦法，故選D。根據(jù)第二段中的“ 故選A。根據(jù)第三段中的“ The wood and fruit trees on shade coffee farms provide farmers with additional ine. （4）考查推理判斷。You can purchase Bird Friendly certified coffees around the world and protect wildlife and habitat with every cup ”你能在全世界買Bird Friendly 認證的咖啡，每杯都保護野生動物和棲息地，故選C。5．閱讀理解 For the past 3,000 years, when people thought of money they thought of cash. Over the past decade, however, digital payments have taken off— tapping your plastic on a terminal or swiping a smartphone has bee normal. Now this revolution is about to turn cash into an endangered species in some rich economies. That will make the economy more efficient—but it also causes new problems that could hold back the transition(轉(zhuǎn)型). Cash is dying out because of two forces. One is demand— younger consumers want payment systems that plug easily into their digital lives. But equally important is that suppliers such as banks and tech firms (in developed markets) and teles panies (in emerging ones) are developing fast, easytouse payment technologies from which they can pull data and pocket fees. There is a high cost to running the infrastructure behind the cash economy—ATMs, vans carrying notes, tellers who accept coins. Most financial firms are keen to abandon it, or discourage oldfashioned customers with heavy fees. Yet set against these benefits are a couple of worries. Electronic payment systems may risk technical failures, power failure and cyberattacks. In a cashless economy the poor, the elderly and country folk may be left behind. And a digital system could let governments watch over people39。. A.get rid of the sideeffects of cashC.promote payment without paper money or coins（2）In paragraph 3, several countries are mentioned to show . A.that cash is still king across the worldC.China is developing faster that those developed countries in digital payment（3）Cash is disappearing largely because younger consumers are short of money to live their digital livesB.the infrastructure is developing at a high speed in developed marketsD.s attitude towards digitalized payment is . A.B.C.D.總的來說,無現(xiàn)金經(jīng)濟的未來是個好消息,但是對于電子支付人們也有一些擔憂。根據(jù)第一段中的“Rich countries are racing to dematerialise payments.”可知, 富裕國家正競相將支付非物質(zhì)化；再根據(jù)第三段中的“In Sweden the number of retail cash transaction per person has fallen by 80% in the past ten years.”在過去的十年中,瑞典的人均零售現(xiàn)金交易數(shù)量下降了80％。故選D。根據(jù)第三段中的“In Sweden the number of retail cash transaction per person has fallen by 80% in the past ten years.”可知在過去的十年中,瑞典的人均零售現(xiàn)金交易數(shù)量下降了80％；再根據(jù)“In China digital payments rose from 4% of all payments in 2012 to 34% in 2017.”可知在中國,數(shù)字支付從2012年占所有支付的4％上升到2017年的34％。故選C。根據(jù)第四段中的 “But equally important is that suppliers su