The cracked screens that result from dropped iPhones could become a thing of the past thanks to an invention — an airbag for smartphones.
The technology makes use of the motion-sensors
that are now built into most smartphones to detect when it has entered an airborne state, so that a mini-airbag can
be used to be as a cushion before its fall.
The idea comes from the quickly-developing
technology department at Amazon, which won a patent for the protective system. As well as mobile phones, the technology could be used on electronic readers, computer tablets and cameras.
The airbag would draw on data from a mobile phone's built-in camera and other such sensors,
according to the patent. Then, if it is determined that the phone has been dropped, the technology will start the release of airbags and could even include air-jets to change its way in mid-air.
It is clear that there is a large market for it. In the UK alone, tens of millions of pounds are spent on iPhone repairs each year.
The technology could put an end to “cracked cases”， but some people concern about the practicality of its production.,
[阅读障碍词]
1．result from由……引起 2．smartphone n．智能手机 3．make use of利用
4．motion-sensor n．移动传感器 5．airborne adj.空降的 6．data n．数据，资料 7．release n．& v．释放，排放
Please match the words with their proper meanings. 1．evolution A．to not do sth. until a later time
2．construct B．to make a clock work by turning a handle, etc. several times 3．delay C．the slow development of plants, animals for a long time 4．wind D．at the end of a period of time
5．eventually E. to build or make sth. such as a road, building, etc. 6．foresee F．to give things to a large number of people
7．sceptical G．having doubts that a statement is true or sth. will happen
8．distribute H．to think sth. is going to happen in the future, to know about sth. before it happens
答案：1～5 CEABD 6～8 HGF
Technology is all around us. It plays an important part in our everyday life. Human life can not continue without science and technology. For many years, human society has developed with the advance of science and technology while the development of science and technology has in turn brought the process to mankind. The development of science and technology has brought about many changes in people's life. For example, the invention of television and
space rocket has opened a new era for mankind. Through the use of TV people can hear the sound and learn the events happening thousands of miles away. Owing to the invention of spaceship and rocket, the dream of man's landing on the moon has now come true.
Can you name some wonders in science and technology?
答案：Electricity/radio/TV/phone/plane/satellite/computer/Internet/cloning_... Ⅰ.Fast-reading
1．First look at the title and skim the headings before each section and the first sentence of each section and then finish the following question.
The passage is mainly about the development of sound_and_video_equipment. 2．How is the text organized?
A．By examples. B．By time.
C．By space. D．By comparison. 答案：B Ⅱ.Careful-reading
(Ⅰ)Choose the best answers according to the text.
1．When and where were the first public TV broadcasts made? A．In 1925 in the USA. B．In 1925 in the UK.
C．In 1928 in the UK. D．In 1928 in the USA.
2．Satellites were used to broadcast TV beginning in________. A．1967 B．1962 C．1951 D．1938
3．Who made the first recording of a human voice? A．Emile Berliner B．Thomas Edison C．John Logie Baird D．Farnsworth 4．What are CDs often used for?
A．Copying sound. B．Communication. C．Storing and playing music. D．Broadcasting. 答案：1～4 ABBC
(Ⅱ)Read the text and judge which is true (T) or false (F)．
1．Modern TVs use many of the principles first discovered by John Logie Baird.(F) 2．Colour TV became popular within just a few years after it was invented. (F) 3．Satellites allow TV to be broadcast live over vast distances.(T)
4．Traditional records and cassettes do not offer as good a sound quality as CDs.(T) (Ⅲ)Fill in each blank with no more than three words. The evolution of video and sound devices ·The first public TV broadcasts were made in (1)1925 in the USA. ·Colour TV broadcasts began in 1951 in the USA after colour TV was first TV (2) constructed by John Logie Baird in 1928. ·(3) Satellites used to broadcast TV began in 1962. ·Emile Berliner invented the first record player in 1887 which had to be (4) Recorders wound_up by hand. ·By the late 1960s, (5) portable cassette players were developed. ·The first CDs were made (7)available in 1982 which are often used for (8) Sound and video go storing_and_playing music. (6) digital ·The (9) VCD was born in 1993 and DVD (10)in_1995. Ⅲ.Study-reading Analyze the following difficult sentences in the text.
1．John Logie Baird constructed the first colour TV in 1928, but it was not until 1938 that the first colour TV programme was broadcast.
[句式分析]
[尝试翻译] 约翰·洛吉·贝尔德于1928年制造出第一台彩色电视机，但是直到1938年第一个彩色电视节目才被播出。
2．They also make TV accessible to people who live far away from cities, and satellite dishes can often be seen distributed throughout the countryside and remote areas.
[句式分析]
[尝试翻译] 它们也使远离城市的人们可以收看电视，在农村和边远地区经常可以看到分布着卫星天线。
3．However, most people still benefit from satellite TV, as local TV companies broadcast the signals they get from satellite receivers to the population living nearby.
[句式分析]
主干句→However， most people still benefit from satellite TV， 原因状
语从句→as local TV companies broadcast the signals 省略which/thatthey get from satellite receivers
―→ to the population的定语从句
分词短语作后置定语―→living nearby.
[尝试翻译] 但是，多数人仍然从卫星电视中受益，因为当地的电视公司向附近的居民传送从卫星接收器获得的信号。
Ⅳ.Post-reading
Fill in the blanks according to the text.
The first public TV broadcasts ①were_made (make) in the USA in 1925. Many people contributed ②to the development of TV. In 1928, John Logie Baird constructed the first colour TV, but it was not until 1938 ③that the first colour TV programme was broadcast. Most people have benefited ④from satellite TV since satellites were used to broadcast TV in 1962. Satellites allow everyone to receive the same broadcast at ⑤the same time. The history of sound recorders began in 1877, ⑥when Thomas Edison made the first recording of a human voice on his invention, the record player. It had to ⑦be_wound (wind) up by hand and only played records two minutes long. By the late 1960s, portable cassette players were developed, along with video recorders. ⑧With the development of digital technology, sound and video can now ⑨be_stored (store) on a PC, on the Internet, or using some form of portable ⑩storage (store).
[课 文 对 译]
The evolution of video and sound devices
Early history of TV
The first public TV broadcasts were made in the USA in 1925. Later, in 1928, the first long-distance TV broadcast was made between the UK and the USA. Regular public broadcasting followed shortly afterwards, first beginning on 11 May 1928 in New York and on 20 August 1929 in London.
Many different people contributed to the development of TV. Most early TV broadcasts were made using a system developed by John Logie Baird in the UK. However, his system was very primitive and had many drawbacks. An American, Philo Farnsworth, made important breakthroughs in the development of TV in the late 1920s and early 1930s. Modern TVs use many of the principles first discovered by Farnsworth.
John Logie Baird constructed the first colour TV in 1928, but it was not until 1938 that the first colour TV programme was broadcast. It took more than two decades, though, until 1951, for regular colour TV broadcasts to begin in the USA. Regular colour TV broadcasts were delayed in the UK until 1967. However, within a short time nearly all TV broadcasts were made in colour, and within five years more colour TVs than black-and-white TVs were being used.
The modern age: satellite TV
Satellites were used to broadcast TV beginning in 1962. Satellites allow TV to be broadcast live over vast distances, with everyone receiving the same broadcast at the same time. They also make TV accessible to people who live far away from cities, and satellite dishes can often be seen distributed throughout the countryside and remote areas. Of course, only a small percentage of people own satellite dishes. However, most people still benefit from satellite TV, as local TV companies broadcast the signals they get from satellite receivers to the population living nearby.
Early history of sound recorders
It all began in 1877, when Thomas Edison made the first recording of a human voice on his
invention, the record player. Early record players used round tubes to record on. However, in 1887 Emile Berliner, a German living in the USA, invented a record player that used discs as alternatives to tubes, and so the modern record player was born. The first record players had to be wound up by hand and only played records that were two minutes long. Times surely have changed!
Sound and video recorders
In 1928, the first tape recorders used to copy sound were made in Germany. Most early recorders employed steel tape to record on, which made them heavy and difficult to use, or paper tape, which was easier to use but often broke. It was not until the early 1950s that most tape recorders began using plastic tape as they do today. Meanwhile, electrical components eventually became so small that, by the late 1960s, portable cassette players were developed, along with video recorders which were used by TV stations. By the late 1970s, video recorders small and cheap enough for home use were introduced.
Sound and video go digital
In 1982, the first CDs were made available. CDs are often used for storing and playing music because they have a much better sound quality than traditional records and cassettes. In 1993, the VCD was born, and in 1995, the DVD was invented. The DVD is now the standard for recording and playing back video.
The future
With the development of digital technology, sound and video can now be stored on a PC, on the Internet, or using some form of portable storage. This will soon make records, cassette recorders, CDs, DVDs and even TVs things of the past. Technology is now changing faster than most people can keep pace with. Who can foresee what the future will bring？
视频和音频设备的发展
电视的早期历史
1925年公共电视节目在美国首播。随后，在1928年，英美两国之间第一次实现了长距离电视节目播放。之后不久便开始定期向公众播放电视节目，纽约首次开播时间是1928年5月11日，伦敦是1929年8月20日。
很多不同的人对电视的发展作出过贡献。大部分早期的电视节目的制作使用的是英国的约翰·洛吉·贝尔德开发的一种系统。但是他的系统非常原始，而且有许多缺陷。一个叫菲洛·法恩斯沃思的美国人在20世纪20年代末和30年代初在电视的研发上取得了重大突破。现代电视所使用的原理大多都是法恩斯沃思首先发现的。
约翰·洛吉·贝尔德于1928年制造出第一台彩色电视机，但直到1938年第一个彩色电视节目才播出。但是，彩色电视节目一直到1951年才得以在美国定期播出，其间经历了20多年的时间。英国的定期彩色电视节目播出则推迟到了1967年。然而，在很短的时间内，几乎所有的电视节目都被制作成了彩色的，五年内，彩电的使用率超过了黑白电视机。 现代：卫星电视
卫星用于播送电视节目始于1962年。卫星使得电视节目能够远距离直播，大家能够在同一时间接收到相同的电视节目。它们也使远离城市的人们可以收看电视，在农村和边远地区经常可以看到分布着卫星天线。当然只有一少部分人有卫星天线。然而，大多数人仍然受益于卫星电视，因为当地的电视公司把从卫星接收器收到的信号播送给附近的居民。
录音机的早期历史
一切始于1877年，这一年托马斯·爱迪生用他发明的留声机第一次录制了人的声音。早期的留声机把声音录制在圆管子上。但是1887年一位侨居美国的德国人埃米尔·贝利内发明了使用唱片替代圆管的留声机，因此现代留声机诞生了。最早的留声机必须手摇上发条，而且只能播放两分钟长的唱片。时代因此而改变了！
录音机和录像机
1928年，用于复制声音的第一批磁带录音机在德国诞生。早期的大多数录音机使用钢质磁带录音，这就使得这种录音机笨重且使用起来非常困难；或者使用纸质磁带录音，这样使用起来比较方便，但是经常容易折断。直到20世纪50年代初，大部分的录音机才开始使用像今天使用的塑料磁带。同时，电子元件终于变得很小，到了20世纪60年代末，便携式录音机被研制出来，还研制出了电视台使用的录像机。到了70年代末，既小又便宜的家用录像机面世了。
声音和视频数字化
1982年，第一批激光唱片出现了。激光唱片常常用于储存和播放音乐，因为它们的音质比传统的唱片和磁带要好得多。1993年，VCD面世，1995年发明了DVD。现在DVD是标准的视频录制回放设备。
前景
随着数字技术的发展，现在声音和视频可以储存在个人电脑上、互联网上，或者使用某种便携式的存储设备。这将很快让唱片、磁带录音机、激光唱片、DVD，甚至电视成为历史。现在技术变化快得让大多数人跟不上。谁能预见未来将会带来什么样的变化呢？
高二英语课件+讲义+练习(1) - 图文
