2018年6月英语四级听力参考答案及解析

  PSG 2

  Passage 2 U.S.高速路发展历史

  The United States has one of the best highway systems in the world。
Interstate highways connect just about every large and mid-sized city in
the country。 Did u ever wonder why such a complete system of excellent
roads exists? For an answer, u would have to go back to the early
1920s。 In those years just after World War 1, the military wanted to
build an American highway system for national defense such a system
could if necessary move troops quickly from one area to another。 It
could also get people out of cities in danger of being bombed,
so-called roads of national importance were designated, but they were
mostly small country roads。 In 1944 Congress passed a bill to upgrade
the system but did not fund the plan right away。 In the 1950s, the
plan began to become a reality。 Over 25 billion dollars was
appropriated by Congress and construction began on about 40000 miles of
new roads。 The idea was to connect the new system to existing
expressways and freeways。 And though the system was built mostly to
make car travel easier, defense was not forgotten。 For instance,
highway overpasses had to be high enough to allow trailers carrying
military missiles to pass under them。 By 1974,this system was mostly
completed a few additional roads would come later。 Quick and easy
travel between all parts of the country was now possible。

  Questions 19 to 21 are based on the passage you have just heard。

  Q19。 What does the speaker say about the American highway system。

  Q20。 What was the original purpose of building a highway system。

  Q21。 When was the interstate highway system mostly completed。

  美利坚联邦合众国独具世界上最佳的公路体系之后生可畏。州际高速度公路接二连三全国具备大中城市。你有未有想过怎么那样三个周全的征途系统设有?作为答案,你将一定要再次回到20年代初。在第三遍世界战多管闲事后的那三个年里,军方想要建设结构一个美国的国防高品级公路系统,那样二个系统能够在须求时神速将阵容从四个地面搬到另贰个地面。它也足以让大家离开有被炸的义务险的都市,所谓的持有国家首要的征途被钦赐,但它们相当多是小村落道路。
1942年国会通过了大器晚成项法案来提高该系统,但并未立时为该计划提供费用。在20世纪50时代,该安插开始形成现实。国会拨款超越250亿台币,新建道路约40000公里。这些主张是将新种类总是到存活的一级公路和一级公路上。尽管该类其余修筑首如果为了让汽车骑行更易于,但防卫措施并不曾被遗忘。比方,高品级公路天桥必需丰盛高,以允许指点军用导弹的挂车经过它们。到1975年,这几个系统大旨做到了,稍后会有部分格外的道路。以往全国内地之间异常快而轻巧的远足已产生可能。

  Q19。 演说者对美利哥高等第公路系统有啥评价?

  Q20。 建构公路类别的前期目标是什么样?

  Q21。 州际公路体系曾几何时抢先四分之二竣事?

  PSG 3

  Passage 3 智能方向盘

  Texting while driving was listed as a major cause of road deaths
among young Americans back in 2013。 A recent study said that 40 percent
of American teens claimed to have been in a car when the driver used a
cell phone in a way that put people in danger。 This sounds like a
widespread disease but it‘s one that technology may now help to cure。
T.J。 Evert, a 20 –year-old inventor, has come up with a novel
solution that could easily put texting drivers on notice。 It’s called
Smart Wheel and it‘s designed to fit over the steering wheel of most
standard vehicles to track whether or not the driver has two hands on
the wheel at all times。 Evert’s invention warns the drivers with a
light and a sound when they hold the wheel with one hand only。 But as
soon as they place the other hand back on the wheel the light turns back
to green and the sound stops。 It also watches for what’s called “close
by hands” where both hands are close together near the top of the
wheel, so the driver can type with both thumbs and drive at the same
time。 All the data smart wheel collects is also sent to a connected
app, so any parents who install smart wheel can keep track of the
teen‘s driving habits。 If they try to remove or damage the cover,
that’s reported as well。

  Q22。 What is a major cause of road deaths among young Americans?

  Q23。 What is Smart Wheel?

  Q24。 What happens if the driver has one hand on the wheel?

  Q25。 How do parents keep track of their teen‘s driving habits?

  开车时发短信被列为二零一一年青春英国人死于道路的机要缘由。这段时间的意气风发项探究评释,百分之二十的U.S.A.子弟声称在司机使用手提式有线电话机时令人危殆。那听上去疑似朝气蓬勃种数见不鲜的病痛,但才能今后或者助长康复。
T.J。
伊夫rt是壹个人20岁的物工学家,他提议了风度翩翩种前卫的建设方案,能够相当的轻易地通报发短信的的哥。它被喻为智能车轮,它被设计用来安装在大多数行业内部车辆的方向盘上,以追踪司机是不是始终有双手在车轮上。
Evert的评释仅在双臂握住车轮时用焦点光和音响警报司机。但就算他们将另两头手放回车轮上,电灯的光就能变回深紫,声音就能够甘休。它还监视所谓的“临近手”,在面临车轮最上端的地点双手靠得很近,由此司机能够同不日常候用大拇指和驱动器敲击。全体数据智能车轮采摘的音信也会发送到连接的应用程序,由此安装智能车轮的双亲得以追踪青少年的明白习于旧贯。借使他们筹算移除或损坏封面,这也有报道的。

  Q22。 United States子弟死于道路的根本原因是怎么? Q23。 什么是智能车轮?
Q24。 即使司机四只手放在车轮上会爆发什么样? Q25。
爸妈什么追踪他们青年的精晓习贯?

  [答案收拾:有道考神团队]

  来源:有道考神

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