题目内容

【题目】The boy looked ______ because he didn’t pass his maths exam.

A. sad B. sadness C. saddest D. sadly

【答案】A

【解析】

试题分析:句意这个男孩看起来很伤心,因为他没有通过数学考试。sad伤心的,形容词;sadness伤心,名词;saddest最伤心的;sadly伤心地,副词。这句话中的looked是一个系动词,意思是看起来,后面跟形容词做表语,故应选A。

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【题目】

Artificial intelligence(AI in short人工智能) can give computers and machines ability(能力) to think and work like humans. AI scientists and engineers have made much progress in this field.

Facial Recognition

AI is rapidly catching up with the human ability to read faces. Facial recognition(识别) is used widely in the world. Chinese police use this technology to identify(认出) criminals(罪犯). They had caught about 50 criminals at Zhang Xueyou's concerts by October, 2018. It also checks the ID of ride-hailing(网约车) drivers and lets people pay for things with a smile.

Self-driving Cars

Most drivers may wave or nod at passers-by(路人,行人) to let them cross the street, but self-driving cars don’t have this ability. Car makers are testing(测试) a light signal system(灯管信号系 ) to help them “speak” to humans. For example, if a driverless(无人驾驶) car is yielding(让路), it will flash two white lights side to side. A rapidly flashing light tells passers-by that the car is about to speed up(加速).

Service Robots

Imagine this—you come back home from school, and your robot housekeeper is waiting for you at the door. After dinner, he teaches you to play the piano, just like a real music teacher. Such thoughts will soon happen in the real world. In the future, more and more service robots will become good home helpers.

AI is so powerful that it can help human beings and even replace us in many jobs.

1According to the passage, what is facial recognition used for?

A.Driving cars.B.Making people smile.

C.Calling the police.D.Checking people’s information.

2Which technology has been used in real life according to the passage?

A.Service Robots at school.B.Robots as ride-hailing drivers.

C.Facial recognition for payment.D.Light signals for self-driving cars.

3 play(s) an important role in catching criminals.

A.Zhang XueyouB.Service robots

C.Self-driving car makersD.Artificial intelligence

4What can we learn from the passage?

A.People use AI in many different ways.

B.AI will take the place of(代替) human beings in all jobs.

C.Self-driving cars will be able to talk like humans.

D.Criminals were caught for inventing facial recognition.

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