——, Lily? You look pale.—— I had a sleepless ...

——, Lily? You look pale.—— I had a sleepless night.

A. What’s up    B. What do you do   How about you  D. What are you dong

高三英语单项填空中等难度题查看答案及解析

. ---You look pale. What’s the matter?

---Not very well. I was sick most of the night. I ___________something _____ doesn’t agree with me.

A. must eat, that                  B. may have eaten, which

C. may eat, what                 D. must have eaten, that

高三英语单项填空简单题查看答案及解析

If you’re a fan of smart technology, you may have had some sleepless nights lately.

That’s because Alexa, the artificial intelligence (AI) behind US company Amazon’s Echo smart speakers, has been “letting out an automatic, creepy (令人毛骨悚然的) cackle,” for no apparent reason, according to BBC News.

Many social media users shared their stories of Alexa scaring them with the seemingly unprompted laugh.

“Every time Alexa laughs, an angel dies,” Tesla and SpaceX founder Elon Musk joked on social media.

On March 7, Amazon released an update that fixed the problem, saying that the laugh was triggered (引发) by Echo devices mistakenly thinking that users had said the command “Alexa, laugh”.

However, what should have been a funny story raised the ongoing topic of man versus machine.

With the rise of artificial and robotic technology, “Digital machines have started to demonstrate (展示) broad abilities in pattern recognition, complex communication, and other fields that used to only belong to human,” wrote Erik Brynjolfsson and Andrew McAfee in their book The Second Machine Age: Work, Progress, and Prosperity in a Time of Brilliant Technologies. They believe that AI will “do more and more, and our lives will get better”.

However, ever since the earliest days of AI, there have been concerns that some day, software will take over the world, leaving the fate of humans unknown.

“With artificial intelligence we are summoning (召唤) the demon ,” Musk told students during a meeting at MIT in 2014. “If I had to guess at what our biggest existential threat is, it’s probably that. So we need to be very careful.”

Many scientists have shared the same concern. The late British physicist Stephen Hawking said at a technology conference in Portugal in November that “computers can, in theory, imitate human intelligence, and exceed it… AI could be the worst event in the history of our civilization.”

If creators are to safely control AI, however, Hawking suggested that they “employ best practice and effective management”.

“I am an optimist and I believe that we can create AI for the good of the world,” he said at the conference. “We simply need to be aware of the dangers, identify them, employ the best possible practice and management, and prepare for its consequences well in advance.”

1.The story of Alexa is intended to _______.

A. lead into the discussion about humans and AI

B. prove artificial intelligence has its weaknesses

C. inform readers of the development of AI

D. show how Alexa’s problem was fixed

2.What does the underlined word in Paragraph 9 probably mean?

A. scream　　 B. laughter

C. devil　　 D. soldier

3.What message do Brynjolfsson and McAfee probably deliver in their book?

A. The development of AI could threaten our survival one day.

B. There is no need to worry about the rise of AI.

C. Robots will never match humans in complex communication.

D. Humans’ lives will be greatly improved with the help of robots.

4.What can we infer from Stephen Hawking’s words?

A. AI is not as intelligent and efficient as expected.

B. Careful management is the key to controlling AI.

C. AI is the greatest invention in the history of our civilization.

D. AI will be employed in all aspects of our lives in the future.

高三英语阅读理解中等难度题查看答案及解析

Hey, look at your pale face; you must have stayed up late last night, _____?

A. haven’t you　　　 B. have you

C. did you　　 　　 　　 D. didn’t you

高三英语单项填空中等难度题查看答案及解析

183. --- You look pale, what troubled you?

--- I ______ my dead friend.

高三英语单项填空简单题查看答案及解析

短文改错（共10小题；每小题1分，满分10分）

Dear David,

I have recently felt guilty, stay sleepless at night. You may wonder how. To tell you the truth, it is just because of the factthatI seldom cheat in exams and I just can’t stop me. In many exams, I used cellphones to surf the net for answer. Besides, I sometimes referred themto my notebooks so copied something. As you know, cheating do much harm to our learning and self-confidence. It’s time that I take action to stop it. I would appreciate it you could offer me some advice.

Looking forward to your reply!

高三英语短文改错中等难度题查看答案及解析

—You look tired, Jack． What's wrong with you?

—Oh, 1 worked quite late last night． Nothing wrong with me,　　　　　 ．

A． although 　　　　　　 B． though

C． yet 　　　　　　　　　　 D． still

高三英语单项填空中等难度题查看答案及解析

—Guess what! I came across an old friend at the party last night.

—________ I’m sure you had a wonderful time.

A. Sound good!  B. Very well.       C. All right.         D. How nice!

高三英语单项填空简单题查看答案及解析

— Guess what! I came across an old friend at the party last night.

— ____________！ I’m sure you had a wonderful time.

A. Sounds good     B. Very well          C. All right     D. How nice

高三英语单项填空中等难度题查看答案及解析

What’s up, Bill? You __________upset.

A. look　　 B. looked　　　　 C. have looked　　　　 D. had looked

高三英语单项填空中等难度题查看答案及解析