Question

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

They are bar-codes（条形码）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空间), 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 UK B.1974 in the US C.2009 in China D.2009 in Russia

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

A.复印 B.展示 C.描写 D.扫描

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

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

C.bar-codes make our life rather difficult D.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-codes B.Why Bar-codes are Black and White

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

Answer

1.B

2.D

3.A

4.D

5.C

【解析】

本文介绍了有关条形码方面的信息，条形码无处不在，没有条形码，生活会很困难。

1.细节理解题。根据文中第三段第一句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，条形码第一次使用是1974年在美国。故选B。

2.词句猜测题。根据上文It's an easy and convenient way to know about the products“那是一个很容易很方便了解产品的方式”及下文everything is clear“所有东西都清楚了”，可知，划线处所在句子表示“扫描二维码”，所以scan表示“扫描”。故选D。

3.推理判断题。根据第三段bar-codes are needed everywhere:for renting cars, for luggage checks on a plane, for parcels(包裹) you send“到处都需要条形码：用于租车，用于在飞机上的行李检查，用于你邮寄的包裹”，及第四段People can enter stadiums,cinemas and theaters by holding certain types of bar-codes“人们出示相应类型的二维码就可以进入体育城，电影院和剧院”，可知，二维码在我们日常生活中是很有用的。故选A。

4.推理判断题。根据In St Petersburg, Russia, there is a building designed like a bar-code，可知，在俄罗斯圣彼得堡，有一个设计的像条形码的大楼，所以A和B选项是正确的。根据but it's actually a shopping mall，可知，这座大楼实际上是一个购物中心，所以C选项是正确的。根据Bar-code Monsters is a mobile phone game，可知，Bar-code Monsters是一款手机游戏，所以D选项是错误的。故选D。

5.主旨大意题。根据文中第一句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运用和作用。故选C。