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Barcodes(條形碼) aren’t given much thought by the majority of consumers, but these codes were fairly recently applied in a working fashion in 1970.

A small food store owner decided one day that keeping records of the inventory(存貨) of his stock and the associated prices were an extremely laborious process, and so, in 1948, he contacted The Drexel Institute of Technology in a bid to work towards a solution. Bernard Sliver rose to the challenge and set out to study the problem and began working on a solution involving an automatic way of keeping track of items that had been sold. Sliver and a group of students from the institute realized their answer in the form of ultraviolet light (紫外線), ink and a scanner.

The system worked initially, but possessed some negatives. It was incredibly costly to carry out on a large scale and the system was also unstable. If the invention was to become commonplace（尋常的事）in grocery stores, these two problems had to be solved.

The patent (專利) for the bar code system was filed by Sliver and one of his students, Woodland. The patent was not granted immediately; in fact, it took three years for the patent agency to grant their invention patent for the barcode, occurring on 7th October, 1952.

Despite the patent being issued, the system was still not welcomed by the majority of store owners. It was not until 1966 that the system began moving its way into more and more grocery stores. This system was soon criticized, as there was no central mechanism for controlling uniformly（統(tǒng)一地）coded items. In 1970, Logicom developed the Universal Grocery Products Identification code( UGOIC), soon shortened to Universal Identification Number (UPC). It was Marsh’s superstore, in Troy, which was the very first store to install this complex barcode reading system, and its popularity has soared(升溫) ever since, and is obviously now commonplace in all types of stores worldwide.

1.What is stressed in the second paragraph?

A．The heavy work of store owners.

B．The function of ultraviolet light, ink and a scanner.

C．The origination of barcodes.

D．Bernard Sliver’s education background.

2.Which of the following was NOT a drawback of Sliver’s system?

A．It was expensive to be applied on a large scale.

B．It was a laborious process.

C．The system was not stable.

D．It lacked a central mechanism.

3.The popularity of the barcode rose quickly after         .

A．1948             B．1952             C．1966             D．1970

4.What is the purpose of the text?

A．To tell people that failure is the mother of success.

B．To praise scientists’ efforts in making people’s lives easier.

C．To describe shop owners’ opinions of barcodes.

D．To provide information about the development of barcodes.

 

【答案】

1.C

2.B

3.D

4.D

【解析】

試題分析：本文主要講述了條形碼技術發(fā)展的歷史及經過，作者給我們提供了一些相關方面的信息。

1.推斷題。從文章第二段A small food store owner decided one day that keeping records of the inventory(存貨) of his stock and the associated prices were an extremely laborious process, and so, in 1948, he contacted The Drexel Institute of Technology in a bid to work towards a solution.可知，此處主要講解的是條形碼的起源，故選C

2.細節(jié)題。從第三自然段及This system was soon criticized, as there was no central mechanism for controlling uniformly（統(tǒng)一地）coded items.可知B符合題意。

3.細節(jié)題。從文章In 1970, Logicom developed the Universal Grocery Products Identification code( UGOIC), soon shortened to Universal Identification Number (UPC).可知在1970年后條形碼快速的流行了，故選D

4.主旨題。本文主要介紹了條形碼發(fā)展的歷史，故選D

考點：科普類說明文

點評：本文文脈清晰，結構很好把握。說明文是歷年高考很常見的文體，對于科技類的說明文比較難，而對于說物的文體較容易。本文中，把握好一個中心即作者對條形碼技術的發(fā)展進行了闡述。同時，此類文章中推斷題要理解作者寫作的意圖，方可作答。

 

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B．You can have a talk with the person in the picture whenever you want to.

C．The picture can tell you wonderful stories to ease your pain.

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B．It will cost you more to take a larger talking picture.

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D．You can make a talking picture by just raising a finger.

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