Question

【題目】 Slowly but surely, we're moving closer and closer to 5G world. From smart-home security to self-driving cars, all the internet-connected devices in our life will be able to talk to each other at lightning-fast speeds with reduced delay. Objectively speaking, the fastest 4G download speeds in the US top out at an average of 19. 42 Mbps. But by comparison 5G promises gigabit （千兆）speeds.

“5G is one of those heralds （使者），along with artificial intelligence , of this coming data age.” said Steve Koenig, senior director of market research for the Consumer Technology Association. “The self-driving 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 coming from the vehicle itself, and a variety of sensors are collecting a lot of information to model its environment as it moves. It's pulling in data from other vehicles about road conditions down the lane. It could be weather information, and also connected infrastructure （基礎(chǔ)設(shè)施）construction. There is lots of data behind that task, which is why we need the high speed.

And virtual reality glasses and headsets haven't yet broken the mainstream, but tech companies are joyfully betting that these devices will eventually replace our smart phones. With 5G, that could actually happen. This is notable because companies such as Apple are reportedly developing AR glasses to assist— or even replace — smart phones.

Ericsson stated at February's Mobile World Congress how smart glasses could become faster and lighter with a 5G connection, because instead of being weighed down with components, the glasses could rely on hardware for processing power.

But don't get too excited. There is 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 isn't concentrated only in big cities.

【1】What is the first paragraph mainly about?

A.A right security of 5G.B.The super speed of 5G.

C.A potential dream of 5G.D.The present world of 5G.

【2】What do some tech companies expect of virtual reality glasses?

A.They will be heavier than present ones.

B.They will process power on their own.

C.They will serve people instead of smart phones.

D.They will bring a big fortune to tech companies.

【3】What will the author tell us in the next paragraph?

A.How to fully expand 5G coverage.

B.How to effectively reduce 5G trials.

C.How to nicely operate 5G hardware.

D.How to widely construct 5G big cities.

Answer 1

【答案】

【1】B

【2】C

【3】A

【解析】

這是一篇說明文。文章講述的是隨著科技的不斷發(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】

主旨大意題。第一段先提出“Slowly but surely, we're moving closer and closer to 5G world. Objectively speaking, the fastest 4G download speeds in the US top out at an average of 19. 42 Mbps. But by comparison 5G promises gigabit （千兆）speeds.(雖然緩慢但是必然的，我們正離5G世界越來越近�？陀^地說，美國最快的4G下載速度最高，平均為19.42 Mbps。但相比之下，5G承諾了千兆的速度。)”，所以第一段主要是關(guān)于5G的超級速度。故選B項。

【2】

細節(jié)理解題。根據(jù)第三段第一句“And virtual reality glasses and headsets haven't yet broken the mainstream, but tech companies are joyfully betting that these devices will eventually replace our smart phones.(虛擬現(xiàn)實眼鏡和耳機還未打破主流，但是科技公司樂觀地下賭注這些設(shè)備最終將取代我們的智能手機。)”可知，科技公司期望虛擬現(xiàn)實眼鏡取代智能手機服務(wù)人類。故選C項。

【3】

推理判斷題。根據(jù)最后一段“But don’t get too excited. There’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 isn’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，以確保收無線電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）”由此判斷出，作者接下來可能會告訴我們“如何全面擴大5G覆蓋�！惫蔬xA項。