【文章內(nèi)容簡(jiǎn)介】 ecosystem beneath it.D.The condition of animal species in Antarctica.（3）What can we learn about the A68 iceberg from the text? A.It is as big as London.B.It is part of an ice shelf in the Arctic.C.It will disappear in a very short time.D.It has uncovered an unknown ecosystem in Antarctica.（4）What can we infer from the last paragraph? A.There is no need to worry about climate change in Antarctica.B.The ice sheets in Greenland and Antarctica are melting at a steady rate.C.Many creatures living in deep water will die out due to climate change.D.By 2100, the sea level will have risen to a much higher level than now.【答案】 （1）B（2）C（3）D（4）D 【解析】【分析】本文是一篇說明文，南極地區(qū)的拉森C冰架崩解形成了一座巨大的冰山A68 iceberg。冰山下面顯現(xiàn)的新的海洋生態(tài)系統(tǒng)為科學(xué)家提供了研究未知的海洋生物的機(jī)會(huì)。 （1）考查細(xì)節(jié)理解。根據(jù)第二段中的“Now scientists say it is a race against time to explore these new ecosystems before they are transformed to the light.”可知，科學(xué)家著急趕去世界最大的冰山是為了在其受到光照影響之前研究這座冰山下面的海洋生態(tài)系統(tǒng)。故選B。 （2）考查詞義猜測(cè)。根據(jù)第三段中的“The calving of A68 provides us with a unique opportunity to study marine life...”可知A68冰山的形成為科學(xué)家提供了研究海洋生物的獨(dú)一無二的機(jī)會(huì)，所以Professor David Vaughan認(rèn)為科學(xué)家要果敢地抓住這次機(jī)會(huì)，故this one指的是A68冰山和它下面的生態(tài)系統(tǒng)。故選C。 （3）考查細(xì)節(jié)理解。根據(jù)第一段中的“to reach a newly revealed ecosystem that had been hidden for 120,000 years below the Larsen C ice shelf.”到達(dá)一個(gè)新發(fā)現(xiàn)的在拉森冰架下面隱藏了12萬年的的生態(tài)系統(tǒng)，可知選D。 （4）考查推理判斷。根據(jù)最后一段中的“…At the current rate, the world39。s oceans will be, on average, at least 60cm higher by the end of the century.”按目前的速度，世界的海洋到本世紀(jì)末平均至少升高60厘米，選D。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解，詞義猜測(cè)和推理判斷三個(gè)題型的考查，是一篇環(huán)境類閱讀，考生需要準(zhǔn)確掌握細(xì)節(jié)信息，同時(shí)根據(jù)上下文的邏輯關(guān)系，進(jìn)行分析，推理，從而選出正確答案。4．犇犇閱讀理解 Slowly but surely we39。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. “5G is one of those signs, along with artificial intelligence, of this ing data age,” said Steve Koenig, senior director of market research for the Consumer Technology Association. “The selfdriving vehicle is a great emblem of this data age, and that is to say, it is a sign of time, because with one single task, driving, you have massive amounts of data ing from the vehicle itself, and a variety of sensors are collecting a lot of information to model its environment as it moves. It39。s pulling in data from other vehicles about road conditions down the lane. It could be weather information, but also connected infrastructure (基礎(chǔ)設(shè)施) construction. There39。s lots of data behind that task, which is why we need high speed. Augmented reality glasses and virtual headset haven39。t yet broken the mainstream, but tech panies are joyfully betting that these devices will eventually replace our smartphones. With 5G, that could actually happen. This is notable because panies such as Apple are reportedly developing AR glasses to assist — or perhaps even replace — smartphones. Ericsson stated at February39。s Mobile World Congress how smart glasses could bee faster and lighter with a 5G connection, because instead of being weighed down with ponents, the glasses could rely on hardware for processing power. But don39。t get too excited. There39。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。t concentrated only in big cities.（1）What does the author want to stress in Paragraph 1? A.The lightingfast speed of 5G.B.The expectation of 5G world.C.The difference between 4G and 5G.D.The internetconnected devices in our life.（2）What does the underlined word emblem in Paragraph 2 mean? A.Exhibition.B.Success.C.Symbol.D.Explanation.（3）We can infer from the text that ________. A.5G world won39。t e without AR glassesB.5G helps to create the artificial intelligence vehicleC.Apple pany is developing AR glasses worldwideD.Tech panies will face the fact that smartphones may be replaced（4）What will the author probably tell us next? A.How to fully expand 5G coverage.B.Smart glasses will bee faster and lighter.C.Why 5G isn39。t concentrated in big cities.D.The importance of infrastructure construction.【答案】 （1）A（2）C（3）D（4）A 【解析】【分析】本文是一篇說明文，介紹了我們離5G世界越來越近了。 （1）考查段落大意。根據(jù)第一段中的“Slowly but surely, we39。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?？芍?，作者在第一段想強(qiáng)調(diào)“5G光速快?！惫蔬xA。 （2）考查詞義猜測(cè)。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(shí)間的標(biāo)志，”可知，劃線詞的意思是“標(biāo)志，象征”。故選C。 （3）考查推理判斷。根據(jù)第三段中的“This is notable because panies such as Apple are reportedly developing AR glasses to assist — or perhaps even replace — smartphones.”這一點(diǎn)值得注意，因?yàn)閾?jù)報(bào)道，蘋果(Apple)等公司正在開發(fā)增強(qiáng)現(xiàn)實(shí)眼鏡，以幫助——甚至取代——智能手機(jī)?！?可知，我們可以從文中推斷，科技公司將面臨智能手機(jī)可能被取代的事實(shí)。故選D。 （4）考查推理判斷。根據(jù)最后一段中的“But don39。t get too excited. There39。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。t concentrated only in big cities.”但是不要太激動(dòng)。與此同時(shí)，仍有很多工作要做，包括各種試驗(yàn)，以確保收音機(jī)能很好地配合硬件和基礎(chǔ)設(shè)施建設(shè)，這樣5G就不會(huì)只集中在大城市?！笨芍?，作者接下來可能會(huì)告訴我們“如何全面擴(kuò)大5G覆蓋?！惫蔬xA。 【點(diǎn)評(píng)】本題考點(diǎn)涉及段落大意，詞義猜測(cè)和推理判斷三個(gè)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(guān)系，進(jìn)行分析，推理，概括和歸納，從而選出正確答案。5．犇犇閱讀理解 Acting is the least mysterious of all crafts, Marion Brando once said. But for scientists, working out what is going on in an actor39。s head has always been something of a puzzle. Now, researchers have said actors show different patterns of brain activity depending on whether they are in character or not. Dr Steven Brown, from McMaster University in Canada, said, It looks like when you are acting, you are suppressing (壓制) yourself。 almost like the character is possessing you. Brown and colleagues report how 15 actors, mainly theatre stud