Blind people can’t see well or at all. They can’t see coming cars. So they can’t walk on the street safely or freely.

Mael Fabien wants to help them. He thinks that robots can help. He looks at automatic(自动的) cars and studies how they work. Automatic cars drive without a driver. The cars can see obstacles(障碍物).

Then Fabien gets an idea. He and his team make a special device(设备). A blind person wears the device around his neck. The device can know the obstacles. Then it makes a noise to warn him. So the blind person knows where the obstacles are.

People can buy the device in September 2022. It’s $3,150.

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1.Blind people can’t walk on the street freely because_________.

A cars are dangerous to them

B they want to be free

C they can see very well

D no drivers are in cars

解析：选A。A 细节理解题。根据第一段的第一二句可知，盲人看不见来车，街上的车辆对他们来说很危险，所以他们不能自由地在街上行走。故选A。

2.Mael Fabien gets the idea of the device from _________.

A drivers

B the street

C automatic cars

D obstacles

解析：选C。C 细节理解题。根据第二段第四句的“He looks at automatic(自动的) cars and studies how they work.”可知，Fabien从自动驾驶汽车中得到了灵感。故选C。

3.Blind people wear the device _________.

A around their arm

B around their neck

C on their head

D around their leg

解析：选B。B 细节理解题。根据第三段的“A blind person wears the device around his neck.”可知，盲人把这个设备戴在脖子上。故选B。

4.The underlined word “it” refers to(指的是) _________.

A the robot

B the neck

C the device

D the obstacle

解析：选C。C 词意指代题。根据上文可知，这种设备是帮助盲人识别障碍物的，因此当这个设备识别到障碍物，它就会发出声音来提醒盲人，即it 指代前文提到的设备。故选C。

5.What’s the best title(标题) of the passage?

A How to Drive a Car.

B Help for Blind People.

C Talk with Blind People.

D How to Use Your Eyes.

解析：选B。B 主旨大意题。通读全文可知，本文讲述了科学家发明可穿戴设备帮助来盲人，因此标题B“帮助盲人”最符合文意。故选B。