高考英语一轮复习UnitLaughter单元主题语篇训练三含解析北师大版选修

1 Unit 17 单元主题语篇训练

Ⅰ.阅读理解

A

A Chinese company says it has created a new facial recognition system that can

identify people even if they are wearing masks.

Engineers at the Beijing­based Hanwang Technology Ltd.say their system is the

first to be created to effectively identify people wearing face masks.A team of 20

people built the system in about a month.The system is based on existing technologies

developed over the past 10 years.The process involved adding a collection of about

6 million unmasked faces and a much smaller collection of masked faces.

Hanwang is now selling two main kinds of products that use the new technology.One

performs “single channel” recognition, which is designed to be used at the

entrances to buildings.The other product is a “multi­channel” recognition system

that uses groups of surveillance cameras (监控摄像头)．

“When wearing a mask, the recognition rate can reach about 95 percent, which

can ensure that most people can be identified，” said Huang Lei, Hanwang's vice

president.He added that the system's success rate for people not wearing a mask is

about 99.5 percent.

Huang said Hanwang's technology can be used to identify and track people as they

move about.He added the system can identify crime suspects, terrorists or make

reports or warnings.

However, the new system struggles to identify people wearing both a mask and

sunglasses.“In this situation, all of the key facial information is lost.In such

cases recognition is tough，” Huang said.

It was not immediately clear how people were reacting to the new technology.While

some have expressed opposition to such tools, many others seem to have showed

interest in the new system and accepted it as a way to deal with the current health

emergency — the spread of the novel coronavirus (新型冠状病毒)．Huang says he sees

the interest likely expanding if the virus continues to spread and the use of face

masks increases.

语篇解读：本文是一篇新闻报道。文章主要介绍了北京汉王科技有限公司研发的一种新的面部识别系统，该系统能够有效识别戴口罩的人。

1．What is the second paragraph mainly about? 2 A．Where the company is located.

B．How the system is developed.

C．When the research work started.

D．What the collection stands for.

解析：选B 段落大意题。根据第二段最后三句可知，第二段主要讲述的是新的面部识别系统是如何开发的。

2．What is the limitation of the new facial recognition system?

A．The poor storage of information.

B．The relatively low recognition rate.

C．Identifying people with both a mask and sunglasses.

D．Tracking the movement of crime suspects and terrorists.

解析：选C 细节理解题。根据倒数第二段中的“However, the new system struggles

to identify people wearing both a mask and sunglasses.”可知，这种新的面部识别系统的局限性在于它很难识别同时戴口罩和太阳镜的人。

3．What attitude does Huang Lei hold towards the new technology?

A．Unclear. B．Optimistic.

C．Opposed. D．Worried.

解析：选B 观点态度题。根据第四段中黄磊对新系统识别率的陈述及最后一段最后一句可推知，黄磊对这项新技术持乐观态度。

4．Where is the text most likely from?

A．A travel brochure. B．A health magazine.

C．A medical paper. D．A science report.

解析：选D 文章出处题。根据第一段的内容及下文对该项新技术的介绍可知，这篇文章很可能出自一篇科学报告。

B

You might have heard a lot about ancient towns and ancient cities in China. Here,

we list several of the most beautiful ancient villages in China.

Baoshan Stone Village, Yunnan Province

Baoshan Stone Village was built on a huge mushroom­shaped rock, and only has

about one hundred houses. The houses are laid out in an orderly way, built on the

rock, and linked by stone steps. The Naxi people there still lead an original life

and grow crops in terraces (梯田); you can experience the colorful culture of the 3 Naxi ethnic (民族的) group there.

Tuvas Village in Kanas, Xinjiang

Kanas Tuvas Village is near the mysterious Lake Kanas. The small village is

located in a valley, and only has about 80 houses. These Swiss­style wooden houses

are all surrounded by wooden fences. Tuvas is an ancient minority group. They

traditionally lived as hunters. You can visit a local family, go herding with the

locals and experience the peaceful ancient village life.

Jiaju Tibetan Village, Danba, Sichuan Province

Jiaju Tibetan Village is known as the “Tibetan fairyland”. It stands on a

mountain slope, and consists of about 140 houses. These unique houses are all built

with crown­shaped roofs, red caves, and white walls, which make the houses look like

little castles among the forest.

Xijiang Miao Village, Guizhou Province

If you're interested in the Miao Minority, Xijiang Miao Village can be a great

destination for deepening your understanding of Miao history and culture. It's the

largest Miao village in China, and now has 1,432 households with a population of

over 5, 000, of which 99.5% are Miao ethnic group. It's also famous for the houses

built on stilts (支柱) of different heights.