Even as Google plans to test its fleet(车队)of self﹣driving cars on public roads this summer,its business model remains a bit of a mystery.By 2025,as many as 250,000self﹣driving vehicles could be sold each year globally,according to a study by an industry research firm.
"Vehicles that can take anyone from A to B at the push of a button could transform mobility for millions of people,"said Chris Urmson,director of Google's self﹣driving car project.For now,Google has no plans to sell any of its self﹣driving cars.They are strictly for research.But they will hit public roads this summer near Google's headquarters in Mountain View,California.Previous testing has taken place only on closed courses.
The cars are built to operate without a steering wheel,accelerator(油门)or brake pedal."Our software and sensors do all the work,"Urmson said."The vehicles will be very basic﹣we want to learn from them and adapt them as quickly as possible﹣but they will take you where you want to go at the push of a button."The prototype(雏形)are the first of a 100﹣car fleet the tech giant is building.
In the long run,Urmson sees a future of safer roads﹣the majority of auto accidents are caused by human error﹣and fewer traffic jams.Robotic cars could also shuttle people who can't drive because of age or illness.
Google has said that self﹣driving cars could launch new business models in which people buy the use of vehicles they don't own.The company has already tested other types of self﹣driving cars on public streets,including modified Lexus sport﹣utility vehicles,under a special permit program by the California Department of Motor Vehicles that requires a human driver at the controls.
The state has issued six other companies permits to operate such cars,including Delphi,Mercedes﹣Benz,Volkswagen,Tesla,Bosch and Nissan.The vehicles that will be tested on open roads this summer will have removable steering wheels,accelerators and brake pedals to allow "safety drivers "to take control if needed.
Google says the cars are safe.The vehicles have sensors that "can detect objects out to a distance of more than two football fields in all directions,which is especially helpful on busy streets with lots of intersections,"Urmson said."We're looking forward to learning how the community understands and interacts with the vehicles,and to uncovering challenges that are unique to a fully self﹣driving vehicle,"Urmson said.
28.The passage informs us that self﹣driving cars________.
A.will probably decrease traffic jams
B.have already passed necessary tests
C.have been purchased by some companies
D.will be able to communicate with drivers
29.According to Chris Urmson,________.
A.software and sensors are vital for self﹣driving cars
B.self﹣driving cars can give driving orders to humans
C.self﹣driving cars are specially designed for the elderly
D.ordinary vehicles will be replaced by self﹣driving cars
30.The underlined word "intersections" in the last paragraph probably means________.
A.accidents B.buildings C.crossings D.vehicles
31.What is the best title for this passage?_______
A.Self﹣driving Car Avoids Human Errors
B.Self﹣driving Car Meets New Challenges
C.Google's Self﹣driving Car Enjoys Global Popularity
D.Google's Self﹣driving Car Graduates to City Streets.
AACD
政治经济类文章的概念:
要做好这类阅读,平时就要注意了解国内外发生的政治经济大事,掌握一定背景知识,对这类文章的叙述特点及内容安排有一定了解,还要扩展这方面的词汇。阅读这类文章,要抓住文章的核心,即文章整体和各段主要在说什么,也要注意段落之间的逻辑关系。
如何备考政治经济类阅读理解题:
【题型说明】政治经济类阅读文章是高考常选材料之一。该类文章时代气息浓郁,语言鲜活,但熟字新义词、超纲词及专业词语多,长句、难句多。政治类文章大多数是同学们感性趣的内容,读起来倒有似曾相识的感觉,经济类文章读起来就像是雾里看花,文章看完,一头雾水。再加之这类文章的命题侧重于词义猜测、推理判断和文章主旨,同学们对这类题材是望而生畏。
【备考策略】建立心理优势。针对不同体裁的文章,我们要采取相应的阅读方法和技巧。政治类文章多采用记叙文形式,我们可采取“顺读法”,以便抓关键语句,领会文章主旨;而经济类文章则多采用说明文形式,我们则可以采取“逆读法”,先读试题,再从文章中查找有用信息。若遇到的确难读的材料。千万不用着急,因为你觉得难,其他人也一定是同感。在高考前,我们就要有这种心理准备,高考试卷肯定有一、两篇难以阅读的材料。不过,我们平时可以有意识地从报刊杂志上找一些较难的阅读材料来阅读,以培养自己迎难而上的心理素质。
【答题方法】
1、寻找主干:
根据英语中五种基本句型结构,把句子中的主语、谓语、宾语、表语等主要成分找出来,其他成分如定语、状语、补语等则易于理解。找到了句子主干,句子的意思至少明白了一半。
2、剔除从句:
在一个长句中可能会出现若干个从句,在理解时,如果把各个从句剔除出来单独理解,然后把大意拼凑起来,整个长句的意思就会明白六、七分。
3、辨别分句:
一个长句如果是由几个并列、转折、递进、对比关系的分句组成,句中往往有表示这些分句关系的连接词,只要能弄清楚分句和分句之间的逻辑关系,再把各层分句的意思加以连贯,整个长句的句意基本上能跃然脑中。
4、寻找关键词:
如果一个句子看完,一点句意的感觉也没有,下下策就是抓住句中的关键词,通过关键词大体弄懂这个长句的意思。
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