Question

【题目】 What do you use to unlock your cellphone? A password? A fingerprint? Or simply a glance (一瞥)?

On Sept 12, 2017, Apple introduced its iPhone X, which has an eye-catching feature － Face ID.

With Face ID, you can unlock your new iPhone by just looking at it. It is powered by a camera system TrueDepth in the front of the iPhone X.

When the camera system sees a person’s face, it uses 30,000 unseen dots (点) to “map” (勾画) the shape and outline of the face. A model of the face will then be created and stored in the phone.

The next time the person looks at the iPhone X, the same dots are mapped onto his or her face and compared to the stored model. If the two match, then the phone unlocks. This happens in less than a second.

Apple says the system is smart. If you change your hairstyle, put on sunglasses or makeup, or use the phone in the dark, Face ID still works.

Although the technology sounds amazing, there are still concerns. For example, will Face ID work for twins? What if someone uses a photo in front of the iPhone X?

According to Apple, the chance of others to unlock your iPhone X using Face ID is one in a million. Face ID can tell the difference between twins, but the error rating (出错率) rises.

Apple also emphasizes (强调) that Face ID is smart enough only to work when you want it to. It only unlocks when you open your eyes and stare at(盯住) it. So the phone won’t unlock if you are just glancing at the phone to know the time. It won’t work either if someone puts the phone at your sleeping face or your photo.

【1】Face ID helps iPhone X users to _________.

A.take pictures more quicklyB.make their photos more beautiful

C.unlock their cell phonesD.create their face models easily

【2】How does the camera system of Face ID work?

A.It compares the user’s face with the stored face model in the phone.

B.It remembers users’ faces by taking their pictures.

C.It uses a map to store face models of its users for later use.

D.It matches the users’ faces with unseen dots stored in the system.

【3】The iPhone X users may not unlock their phones when _________.

A.they have changed their hairstylesB.they glance the phone for the time

C.they use it without turning on the lightsD.they wear makeup

【4】The underlined word “concerns” in Paragraph 7 probably means _________.

A.achievementsB.worriesC.rewardD.knowledge

【5】What is the main idea of the story?

A.We can unlock a smart phone in three different ways.

B.Apple’s iPhone X can’t tell the differences between different faces.

C.People don’t believe it’s safe to use Face ID.

D.Face ID is a program to unlock the iPhone X.

Answer 1

【答案】

【1】C

【2】A

【3】B

【4】B

【5】D

【解析】

本文讲述了2017年9月12日，苹果公司推出了iPhone X，它有一个引人注目的功能——面部识别。人脸模型将被创建并存储在手机中，当人们再次看iPhone X时，相同的点被映射到他或她的脸上，并与存储的模型进行比较。如果两者匹配，则电话解锁。如果改变了发型，戴上太阳镜或化妆，或在黑暗中使用手机，面部识别仍然有效。当人们睁开眼睛，盯着手机才会有用。因此，如果只是瞥一眼手机，想知道时间，手机就不会解锁。

【1】细节理解题。根据“With Face ID, you can unlock your new iPhone by just looking at it.”可知有了Face ID，只需看一眼就能解锁新iPhone，故选C。

【2】细节理解题。根据“ A model of the face will then be created and stored in the phone…compared to the stored model. If the two match, then the phone unlocks.”可知它将用户的脸与手机中存储的人脸模型进行比较，故选A。

【3】推理判断题。根据“Apple says the system is smart. If you change your hairstyle, put on sunglasses or makeup, or use the phone in the dark, Face ID still works.”可知如果改变了发型，戴上太阳镜或化妆，或在黑暗中使用手机，面部识别仍然有效，所以排除A、C、D；根据“It only unlocks when you open your eyes and stare at(盯住) it. So the phone won’t unlock if you are just glancing at the phone to know the time. ”可知如果只是瞥一眼手机，想知道时间，手机就不会解锁，故选B。

【4】词义猜测题。根据后文“For example, will Face ID work for twins? What if someone uses a photo in front of the iPhone X?…but the error rating (出错率) rises.”可知iPhone X还存在一些隐忧，故选B。

【5】主旨大意题。根据“On Sept 12, 2017, Apple introduced its iPhone X, which has an eye-catching feature － Face ID.”可知2017年9月12日，苹果公司推出了iPhone X，它有一个引人注目的功能——面部识别，后面主要讲的Face ID的相关用法等，所以主旨是面部识别是一个解锁iPhone X的程序，故选D。