【正文】 h 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? lightingfast speed of 5G. expectation of 5G world. difference between 4G and 5G. internetconnected devices in our life.（2）What does the underlined word emblem in Paragraph 2 mean? ....（3）We can infer from the text that ________. world won39。t e without AR glasses helps to create the artificial intelligence vehicle pany is developing AR glasses worldwide panies will face the fact that smartphones may be replaced（4）What will the author probably tell us next? to fully expand 5G coverage. glasses will bee faster and lighter. 5G isn39。t concentrated in big cities. 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，隨著科技的不斷發(fā)展，5G時代即將來臨。它最大的優(yōu)勢就是上網(wǎng)速度大大加快。 （1）考查推理判斷。第一段提出5G時代即將來臨，接下來介紹5G上網(wǎng)下載的高速度，相比于目前的4G，5G有望達(dá)到千兆的上網(wǎng)速度。作者在第一段想強(qiáng)調(diào)5G的超級速度。故選A。 （2）考查詞義猜測。根據(jù)第二段中的“and that is to say, it is a sign of time”也就是說，這是時間的標(biāo)志）是對前面的補充說明?？赏浦瑒澗€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.”這一點值得注意，因為據(jù)報道，蘋果(Apple)等公司正在開發(fā)增強(qiáng)現(xiàn)實眼鏡，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。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。與此同時，仍有很多工作要做，包括各種試驗，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就不會只集中在大城市，可知，作者接下來可能會告訴我們“如何全面擴(kuò)大5G覆蓋。”故選A。 【點評】本題考點涉及細(xì)節(jié)理解，詞義猜測和推理判斷三個題型的考查，是一篇科技類閱讀，考生需要準(zhǔn)確掌握細(xì)節(jié)信息，并根據(jù)上下文進(jìn)行邏輯推理，從而選出正確答案。8．閱讀理解 To be a good teacher, you need some of the gifts of a good actor。 you must be able to hold the attention and interest of your audience。 you must be a clear speaker, with a good, strong, pleasant voice which is fully under your control。 and you must be able to act what you are teaching, in order to make its meaning clear. Watch a good teacher, and you will see that he doesn39。t sit still before his class。 he stands the whole time he is teaching。 he walks about, using his arms, hands and fingers to help him in his explanations, and his face to express feelings. There are very important differences between the teacher39。s work and the actor39。s. The actor has to speak words which he has learnt by heart。 he has to repeat exactly the same words each time he plays a certain part, even his movements and the ways in which he uses his voice are usually fixed beforehand(預(yù)先).What he has to do is to make all these carefully learnt words and actions seem natural on the stage. A good teacher works in quite a different way. His audience take an active part in his play: they ask and answer questions, they obey orders, and if they don39。t understand anything, they say so. The teacher can39。t learn his part by heart, but must invent it as he goes along. I have known many teachers who are fine actors in class but are unable to take part in a stageplay because they can39。t keep strictly to what another has written.（1）From the passage, we know______. good teacher should be a good actor. good teacher may be unable to act well on the stage. good actor should be a good teacher. good actor may act well in class.（2）Which of the following is NOT true according to the passage? good teacher should speak clearly. good teacher should sit still before his class and speak with his body language. good actor should speak as others have asked him to do. good actor should repeat exactly the same words each time he plays a certain part.（3）The skills of a good teacher are ______ . his students39。 attention. his voice when needed. out what he is teaching. the above.（4）The title (標(biāo)題)of the passage is ______. to be a good teacher. to be a good actor. good teacher39。s knowledge. good actor39。s behavior.【答案】 （1）B（2）B（3）D（4）A 【解析】【分析】本文是一篇說明文，介紹了教師職業(yè)與演員職業(yè)的異同。 （1）考查細(xì)節(jié)理解。根據(jù)最后一段中的“I have known many teachers who are fine actors in class but are unable to take part in a stageplay because they can39。t keep strictly to what another has written.”我認(rèn)識許多老師，他們在課堂上是很好的演員，但在舞臺劇中卻表演不好，因為他們不能嚴(yán)格遵守別人提前寫好的內(nèi)容，可知，一個好老師不一定在表演臺上能表演好。故選B。 （2）考查細(xì)節(jié)理解。根據(jù)第二段中的“Watch a good teacher, and you will see that he doesn39。t sit still before his class。 he stands the whole time he is teaching”看一個好老師，你會看到他常常不會靜靜地在教室前邊坐著，他在教授的