题目内容

【题目】阅读理解
Self-driving vehicles will rely on cameras, sensors and artificial intelligence(AI)to recognize and respond to road and traffic conditions, but sensing is the most effective for objects and movement in the neighborhood of the vehicle. Not everything important in a car's environment will be caught by the vehicle's camera. Another vehicle approaching at high speed on a collision (碰撞)track might not be visible until it's too late. This is why vehicle-to-vehicle communication is undergoing rapid development. Our research shows that cars will need to be able to chat and cooperate on the road, although the technical challenges are considerable.
Applications for vehicle-to-vehicle communication range from vehicles driving together in a row, to safety messages about nearby emergency vehicles. Vehicles could alert each other to avoid collisions or share notices about passers-by and bicycles.
From as far as several hundred metres away, vehicles could exchange messages with one another or receive information from roadside units(RSUs)about nearby incidents or dangerous road conditions through 4G network A high level of A1 seems required for such vehicles, not only to self-drive from A to B, but also to react intelligently to messages received. Vehicles will need to plan, reason, strategize and adapt in the light of information received in real time and to carry out cooperative behaviours. For example, a group of autonomous vehicles might avoid a route together because of potential risks, or a vehicle could decide to drop someone off earlier due to messages received, a foreseen crowding ahead.
Further applications of vehicle-to-vehicle communication are still being researched, including how to perform cooperative behaviour.
(1)What is the first paragraph mainly about?
A.The reasons for the accidents by self-driving vehicles.
B.The research about applications for self-driving vehicles.
C.The importance of artificial intelligence of self-driving vehicles.
D.The reasons for developing communication between self-driving vehicles.
(2)What does the underlined word “alert” mean in Paragraph 2?
A.Alarm.
B.Condemn.
C.Ignore.
D.Govern.
(3)What can we learn about roadside units (RSUs)?
A.They classify the vehicles on the road.
B.They can improve bad road conditions.
C.They take over the passing vehicles.
D.They serve as efficient information stations.
(4)What is the best title for the text?
A.When do vehicles communicate?
B.The reasons why a high level of AI is important
C.Vehicle-to-vehicle communication is coming
D.What do applications for vehicle-to-vehicle communication need?

【答案】
(1)D
(2)A
(3)D
(4)C
【解析】本文是一篇说明文,介绍车对车通信即将来临。
(1)考查段落大意。根据第一段中的“This is why vehicle- to-vehicle communication is undergoing rapid development. Our research shows that cars will need to be able to chat and cooperate on the road, although the technical challenges are considerable.”可知第一段讲的是:发展自驾车车辆之间通信的原因。故选D。
(2)考查词义猜测。根据第二段中的“to safety messages about nearby emergency vehicles.”有关附近紧急车辆的安全信息。可知车辆之间可以互相提醒,避免碰撞或分享有关通知。由此可知划线词的意思是“提醒,报警”,故选A。
(3)考查推理判断。根据第三段中的“From as far as several hundred metres away, vehicles could exchange messages with one another or receive information from roadside units (RSUs) about nearby incidents or dangerous road conditions through 4G network.”可知它们是有效的信息站。故选D。
(4)考查主旨大意。根据最后一段中的“Further applications of vehicle-to-vehicle communication are still being researched, including how to perform cooperative behaviour.”可知车对车通信即将来临。故选C。

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【题目】阅读理解
Food storing is common in members of the crow(乌鸦)family. A new study tested the birds outside this naturally occurring behaviour, which may have evolved(进化)specifically because it gives crows a survival advantage. Some crow species are known to naturally use tools to recover food. So the researchers tested whether the birds could store and recover a tool so they could get it at their food after a gap of 17 hours—something we wouldn't expect them to do naturally. But they were able to instantly select the tool out of a number of unnecessary items.
In another experiment, the researchers taught crows to select a token (礼品券)from a number of items so that they could then exchange for food. Again, the birds then showed that they could plan for the future using this new behaviour. This is different from all of the previous studies in future planning, which have focused on naturally occurring behaviour. For example, we know that chimpanzees select, transport and save appropriate tools for future needs.
These studies have shown that animals can plan for the future—but they left an important question open for debate. Are animals only able to plan to use abilities that have evolved to give them a specific advantage, or can they flexibly and intelligently apply planning behaviour across various actions? Most critics would say the former, as the animals were tested in naturally occurring behaviours.
But the new research provides the first evidence that animal species can plan for the future using behaviour that doesn't typically occur in nature. This supports the view that at least some recognitive abilities in animals don't evolve just in response to specific problems. Instead, it suggests that animals can apply these behaviours flexibly across problems in a similar way to humans. We need to investigate how flexible behaviour evolved. Then we might be able to see how crows' ability to plan for the future fits in with their broader cognitive powers.
(1)What's the new finding about some crows according to Paragraph 1?
A.They can store food.
B.They can use tools to recover food.
C.They can store and recover tools.
D.They can select and store food.
(2)What are crows trained by scientists to do when given a token?
A.Reject it casually.
B.Exchange it for food.
C.Save it as their food.
D.Build a nest with it.
(3)What do scientists think of the studies that animals can plan for the future?
A.They are controversial.
B.They are disappointing.
C.They are contradictory.
D.They are convincing.
(4)What can be inferred about recognitive abilities in animals?
A.They develop only with age.
B.It is unclear how they've evolved now.
C.No animals but crows benefit from them.
D.Planning for the future helps their evolution.

【题目】阅读理解
The World Health Organization report compared the “obesity-related behaviors” for youngsters across 42 nations. And it reveals UK kids are among the laziest.
Among teenage girls, the Scots topped the league table for most screen time, with 80 per cent spending at least two hours a day on computers. Wales came fourth with 76 per cent, and England seventh with 75 per cent. Girls in Armenia and Albania were least likely to spend hours idling online.
Screen time figures for boys were even higher. Wales was second in the European “couch potato” league, with 85 per cent glued to their screens for at least two hours. Scotland was third with 84 per cent, and England 15th with 77 per cent. Boys in Switzerland and Portugal were least likely to dedicate two hours a day to sitting in front of a computer.
Lead researcher Dr. Jo Inchley, from the University of St Andrews, said social media was impacting on kids' health. She said,“ We know there are risks, such as cyber bullying and impact on mental health. Also, there are longer-term impacts on physical health from being sedentary. One of the main challenges is that this kind of activity (social media and computer use) is so much part of young people's lives these days.” She said more needs to be done to get kids moving throughout the day.
Dr. Steven Mann, research director for UK Active said the findings were “alarming”. He said, “Modern life has changed, but when teens are spending hours having fun with Facebook, Instagram and videogames, they simply aren't getting the exercise that they need. These alarming inactivity figures show that playtime is over before it has started for too many children, putting them at far greater risk of future conditions like heart disease, cancer and type 2 diabetes.”
Tam Fry, from the National Obesity Forum, warned Brit teens are now “slaves to hand-held devices”. And the WHO warns four in five fat teens will continue to struggle with their weight throughout life. The report also shows less than half of UK youngsters consume fruit or veg daily.
(1)What do we know about the“ obesity-related behaviors” for youngsters across 42 nations?
A.UK kids didn't exercise enough.
B.Girls spent more time on computers than boys.
C.Girls in Wales ranked the first in terms of screen time.
D.Only Swiss boys are among the laziest.
(2)What does the underlined word “sedentary” in Paragraph 4 mean?
A.Cyber bullying.
B.Computer using.
C.Exercising.
D.Sitting or little activity.
(3)What is the main reason for obesity for UK teens?
A.Less fruit or veg consuming.
B.Too much use of electronic devices.
C.Too much playtime.
D.Lack of physical education.
(4)Why are these screen time figures alarming?
A.UK kids will be beaten.
B.All UK kids will suffer from overweight.
C.Risk of certain diseases will increase.
D.More hand-held devices need to be produced.

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