【易伯华出品】雅思阅读机经真题解析-Radio Automation

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Today they are everywhere. Production lines controlled by computers and

operated by robots. There's no chatter of assembly workers, just the whirr and

click of machines. In the mid-1940s, the workerless factory was still the stuff

of science fiction. There were no computers to speak of and electronics was

primitive. Yet hidden away in the English countryside was a highly automated

production line called ECME, which could turn out 1500 radio receivers a day

with almost no help from human hands.

A

John Sargrove, the visionary engineer who developed the technology, was way

ahead of his time. For more than a decade, Sargrove had been trying to figure

out how to make cheaper radios. Automating the manufacturing process would help.

But radios didn't lend themselves to such methods: there were too many parts to

fit together and too many wires to solder. Even a simple receiver might have 30

separate components and 80 hand-soldered connections. At every stage, things had

to be tested and inspected. Making radios required highly skilled labor-and lots

of it.

B

In 1944, Sargrove came up with the answer. His solution was to dispense with

most of the fiddly bits by inventing a primitive chip-a slab of Bakelite with

all the receiver's electrical components and connections embedded in it. This

was something that could be made by machines, and he designed those too. At the

end of the war, Sargrove built an automatic production line, which he called

ECME (electronic circuit-making equipment), in a small factory in Effingham,

Surrey.

ECME Line

C

An operator sat at one end of each ECME line, feeding in the plates. She

didn't need much skill, only quick hands. From now on, everything was controlled

by electronic switches and relays. First stop was the sandbluster, which

roughened the surface of the plastic so that molten metal would stick to it. The

plates were then cleaned to remove any traces of grit. The machine automatically

checked that the surface was rough enough before sending the plate to the

spraying section. There, eight nozzles rotated into position and sprayed molten

zinc over both sides of the plate. Again, the nozzles only began to spray when a

plate was in place. The plate whizzed on. The next stop was the milling machine,

which ground away the surface layer of metal to leave the circuit and other

components in the grooves and recesses. Now the plate was a composite of metal

and plastic. It sped on to be lacquered and have its circuits tested. By the

time it emerged from the end of the line, robot hands had fitted it with sockets

to attach components such as valves and loudspeakers. When ECME was working flat

out, the whole process took 20 seconds.

D

ECME was astonishingly advanced. Electronic eyes, photocells that generated a

small current when a panel arrived, triggered each step in the operation, so

avoiding excessive wear and tear on the machinery The plates were automatically

tested at each stage as they moved along the conveyor. And if more than two

plates in succession were duds, the machines were automatically adjusted-or If

necessary halted. In a conventional factory, workers would test faulty- circuits

and repair them. But Sargrove's assembly line produced circuits so cheaply they

Just threw away the faulty ones. Sargrove's circuit board was even more

astonishing for the time. It predated the more familiar printed circuit, with

wiring printed on aboard, yet was more sophisticated. Its built-in components

made it more like a modem chip.

E

When Sargrove unveiled his invention at a meeting of the British Institution

of Radio Engineers in February 1947, the assembled engineers were impressed. So

was the man from The Times. ECME, he reported the following day, "produces

almost without human labour, a complete radio receiving set. This new method of

production can be equally well applied to television and other forms of

electronic apparatus."

F

The receivers had many advantages over their predecessors. Wit components

they were more robust. Robots didn't make the sorts of mistakes human assembly

workers sometimes did. "Wiring mistakes just cannot happen/ wrote Sargrove. No

wires also meant the radios were lighter and cheaper to ship abroad. And with no

soldered wires to come unstuck, the radios were more reliable. Sargrove pointed

out that the circuit boards didn't have to be flat. They could be curved,

opening up the prospect of building the electronics into the cabinet of Bakelite

radios.

G

Sargrove was all for introducing this type of automation to other products.

It could be used to make more complex electronic equipment than radios, he

argued. And even if only part of a manufacturing process were automated, the

savings would be substantial. But while his invention was brilliant, his timing

was bad. ECME was too advanced for its own good. It was only competitive on huge

production runs because each new job meant retooling the machines. But

disruption was frequent. Sophisticated as it was, ECME still depended on

old-fashioned electromechanical relays and valves-which failed with monotonous

regularity. The state of Britain's economy added to Sargrove's troubles.

Production was dogged by power cuts and post-war shortages of materials.

Sargrove's financial backers began to get cold feet.

H

There was another problem Sargrove hadn't foreseen. One of ECME's biggest

advantages-the savings on the cost of labour-also accelerated its downfall.

Sargrove's factory had two ECME production lines to produce the two circuits

needed for each radio. Between them these did what a thousand assembly workers

would otherwise have done. Human hands were needed only to feed the raw material

in at one end and plug the valves into their sockets and fit the loudspeakers at

the other. After that, the only job left was to fit the pair of Bakelite panels

into a radio cabinet and check that it worked.

I

Sargrove saw automation as the way to solve post-war labor shortages. With

somewhat Utopian idealism, he imagined his new technology would free people from

boring, repetitive jobs on the production line and allow them to do more

interesting work. "Don't get the idea that we are out to rob people of their

jobs,' he told the Daily Mirror. “Our task is to liberate men and women from

being slaves of machines."

J

The workers saw things differently. They viewed automation in the same light

as the everlasting light bulb or the suit that never wears out-as a threat to

people's livelihoods. If automation spread, they wouldn't be released to do more

exciting jobs. They'd be released to join the dole queue. Financial backing for

ECME fizzled out. The money dried up. And Britain lost its lead in a technology

that would transform industry just a few years later.

Question 1-7

Summary

The following diagram explains the process of ECME:

Complete the following chart of the paragraphs of Reading Passage, using no

more than two words from the Reading Passage for each answer. Write your answers

in boxes 1-7 on your answer sheet.

Question 8-11

Summary

Complete the following summary of the paragraphs of Reading Passage, using no

more than two words from the Reading Passage for each answer. Write your answers

in boxes 8-11 on your answer sheet.

Sargrove had been dedicated to create a___8___radio by automation of

manufacture. The old version of radio had a large number of

independent___9___After this innovation made, wireless-style radios

became___10___and inexpensive to export oversea. As the Sargrove saw it, the

real benefit of ECME's radio was that it reduced___11___of manual work .which

can be easily copied to other industries of manufacturing electronic

devices.

Question 12-13

Choose the correct letter, A, B, C or D.

Write your answers in boxes 12-13 on your answer sheet.

12 What were workers attitude towards ECME Model initially?

A anxious

B welcoming

C boring

D inspiring

13 What is the main idea of this passage?

A approach to reduce the price of radio

B a new generation of fully popular products and successful business

C an application of the automation in the early stage

D ECME technology can be applied in many product fields

篇章结构

体裁说明文

题目收音机自动化---集成电路的先驱

结构Paragraph 1: 在电子技术极其落后的1940s, 英国出现了收音机自动化生产线---ECME.

A段：收音机并不特别适合用自动化流程生产。

B段：Sargrove是如何解决收音机不适合自动化生产的问题，从而导致ECME诞生的。

C段：ECME生产线的各道工序介绍。

D段：ECME生产线的先进之处(自动启动生产线、自动检测、比printed circuit更早更先进)

E段：各界对于ECME生产线的评价。

F段：ECME生产出来的收音机相对于之前收音机的几项优点。

G段：虽然ECME生产线可以被改造用于生产其他产品，但是它还是受很多因素制约的(包括改造成本、配件的不可靠、当时英国经济现状)。

H段：ECME可以节约大量的劳动力，但是这却成了它失败的另一条原因。

I段：Sargrove认为ECME有助于解决劳动力短缺的问题，并将劳动力从无聊重复的工作中解放出来。

J段：工人们认为ECME会不利于工人的就业。

（转第二页）