---Even if we have had advanced technology, w...

---Even if we have had advanced technology, we can’t bring dinosaurs back to life.

---______. They died out long ago and their DNA was already destroyed.

A.That’s it B.That’s all right C.It depends D.It’s up to you

高三英语单项填空中等难度题查看答案及解析

We all thought that Betty could have run _______ if she had worn the sports-shoes that day.

A．even faster        B．more slower       C．much quickly       D．still fastest

高三英语单项填空中等难度题查看答案及解析

Today we have too many choices of communication through advanced technology，but we seem ___________the joy of communicating face to face．

A．losing　　             B．to be losing　　     C．to be lost             D．hating lost

高三英语单项填空中等难度题查看答案及解析

Advanced as technology has become now, we still have no　　 for the common cold.

A. alternative　　 B. substitute　　 C. solution　　 D. cure

高三英语单项填空中等难度题查看答案及解析

Advanced as technology has become now， we still have no 　　　 for the common cold.

A. substitute　　 B. cure

C. solution　　 D. alternative

高三英语单项填空中等难度题查看答案及解析

If you can’t come tomorrow, we’ll ______ have to hold the meeting next week.

A yet         B even      C rather   D just

高三英语单项填空简单题查看答案及解析

With advances in transportation and information technology, even the most remote places on Earth are within reach of the traveler. In fact, tourism is now the world’s largest industry, with nature tourism growing the fastest. 1. In response to this increasing appreciation of nature experiences, a new form of travel has arisen called ecotourism.

2. The Nature Conservancy adopts the concept explained by the International Union for Conservation of Nature (IUCN): Environmentally responsible travel to natural areas, in order to enjoy and appreciate nature that promotes conservation, has a low visitor influence and provides for beneficially active socio-economic involvement of local people.

Increased tourism to sensitive natural areas without appropriate planning and management can threaten (威胁) the whole of ecosystems and local cultures.3. Likewise, local communities and can be harmed in numerous ways by crowded foreign visitors and wealth.

4. Ecotourism can provide much-needed reveriues (收益) for the protecting of national parks and other natural areas, which might not be available from other sources.

Additionally, ecotourism can provide a practical economic development alternative for local communities with few other income-generating options. Besides, ecotourism can increase the level of education and activism (积极) among travelers.5.

A. What is ecotourism?

B. The growth of the ecotourism income is also beneficial to the local people.

C. And it makes them more enthusiastic and effective spokesmen for conservation.

D. But most of the tourism in natural areas nowadays is not ecotourism at all.

E. However, this same growth does good to both conservation and local communities.

F. People want to experience nature, but should try not to affect the natural environment.

G. The increase of visitors to ecologically sensitive areas can lead to much environmental damage.

高三英语七选五中等难度题查看答案及解析

—I’m dead tired.I can’t walk any farther，Peter.

—So am I．If only we 　　　　　 a pair of wings!

A. have　　 B. had had

C. had　　 D. should have

高三英语单项填空中等难度题查看答案及解析

If you had told me in advance，I __________ him at the airport.

A．will meet　　 B．would meet

C．will have met D．would have met

高三英语单项填空中等难度题查看答案及解析

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