【題目】 Have you ever noticed the black and white bars on a book？Do you know what they are used for?

They are bar-codes（條形碼）used in most products. If you go to a supermarket，you can see almost every product with a bar-code on it. Bar-codes have information about the product, such as name and production date.It's an easy and convenient way to know about the products. Just scan the bar-code and everything is clear.

The first use of a bar-code in a supermarket checkout system was on a pack of American Wrigley Company chewing gum in 1974.Beyond supermarkets, bar-codes are needed everywhere:for renting cars, for luggage checks on a plane, for parcels(包裹) you send. Life would be rather difficult without bar-codes.Most of our things would get lost in the post.

Bar-codes change as well.Bar-codes in the past were 1-D(one-dimensional空間), but now there are 2-D bar-codes,such as QR code.Since 2009, QR has been used on Chinese train tickets. People can enter stadiums,cinemas and theaters by holding certain types of bar-codes.

With these small codes, life is getting much easier for us.

If you find these bar-code things boring, a bar-code building might be more up your street. In St Petersburg, Russia, there is a building designed like a bar-code.It looks strange, but it's actually a shopping mall. There are games too. Bar-code Monsters is a mobile phone game. You have to scan bar-codes and find the monsters!

【1】Bar-codes were first used in ________.

A.1974 in the UKB.1974 in the USC.2009 in ChinaD.2009 in Russia

【2】The underlined word “scan”might mean “________” in Chinese.

A.復(fù)印B.展示C.描寫D.掃描

【3】From Paragraph 3 and 4, we can learn that ________.

A.bar-codes are very useful in our daily lifeB.our things will get lost without bar-codes

C.bar-codes make our life rather difficultD.we can’t live without bar-codes

【4】Which of the following is NOT true about the bar-code building?

A.It looks like a bar-code.B.It’s in St Petersburg, Russia.

C.It’s used as a shopping mall.D.Its name is Bar-code Monsters.

【5】The best title of this passage is________.

A.From 1-D Bar-codes to 2-D Bar-codesB.Why Bar-codes are Black and White

C.Small Codes that Make a Big DifferenceD.What if the World Doesn’t Have a Bar-code

【答案】

【1】B

【2】D

【3】A

【4】D

【5】C

【解析】

本文介紹了有關(guān)條形碼方面的信息，條形碼無處不在，沒有條形碼，生活會(huì)很困難。

【1】細(xì)節(jié)理解題。根據(jù)文中第三段第一句The first use of a bar-code in a supermarket checkout system was on a pack of American Wrigley Company chewing gum in 1974，可知，條形碼第一次使用是1974年在美國(guó)。故選B。

【2】詞句猜測(cè)題。根據(jù)上文It's an easy and convenient way to know about the products“那是一個(gè)很容易很方便了解產(chǎn)品的方式”及下文everything is clear“所有東西都清楚了”，可知，劃線處所在句子表示“掃描二維碼”，所以scan表示“掃描”。故選D。

【3】推理判斷題。根據(jù)第三段bar-codes are needed everywhere:for renting cars, for luggage checks on a plane, for parcels(包裹) you send“到處都需要條形碼：用于租車，用于在飛機(jī)上的行李檢查，用于你郵寄的包裹”，及第四段People can enter stadiums,cinemas and theaters by holding certain types of bar-codes“人們出示相應(yīng)類型的二維碼就可以進(jìn)入體育城，電影院和劇院”，可知，二維碼在我們?nèi)粘Ｉ钪惺呛苡杏玫摹９蔬xA。

【4】推理判斷題。根據(jù)In St Petersburg, Russia, there is a building designed like a bar-code，可知，在俄羅斯圣彼得堡，有一個(gè)設(shè)計(jì)的像條形碼的大樓，所以A和B選項(xiàng)是正確的。根據(jù)but it's actually a shopping mall，可知，這座大樓實(shí)際上是一個(gè)購(gòu)物中心，所以C選項(xiàng)是正確的。根據(jù)Bar-code Monsters is a mobile phone game，可知，Bar-code Monsters是一款手機(jī)游戲，所以D選項(xiàng)是錯(cuò)誤的。故選D。

【5】主旨大意題。根據(jù)文中第一句Have you ever noticed the black and white bars on a book？Do you know what they are used for可知，本文主要在日常生活中的運(yùn)用和作用。故選C。

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