The computer, help we human beings have stepp...

The computer,　　　　 help we human beings have stepped into the information age, should be regarded as one of the most important inventions in the 20thcentury.

A.which B.whose C.with its D.with whose

高三英语单项填空中等难度题查看答案及解析

They have beaten us at chess, and now computers are taking a step into a very human territory: the reading comprehension test.

Alibaba said its artificial research outperformed human beings in a global reading comprehension test that seeks answers to such pressing questions as “what was Nikola Tesla’s ethnicity (种族划分)?” and “how big is the Amazon rainforest?”

Luo Si described the machines’ victory as “a milestone”. He said the technology has many uses, from customer service to museum tutorial (教程) to medical inquires — some of which are already being handled by chatbots globally.

In the test, companies subjected their artificial intelligence systems to questions from the Stanford Question Answering Dataset, which assessed reading comprehension. The computers’ answers were compared against average human responses and ranked.

Tying (打平) in top place were Microsoft, the US software giant, and Alibaba, and — like its peers at home and abroad - is putting more funds into AI, much of it via its research arm.

While Microsoft and Alibaba won by the slimmest of margins (幅度) — at accuracy levels a few basis points (基点) above humans’ 82.3 per cent in providing exact matches to questions- the tie provided a symbol of the AI arms race (军备竞赛) launched by the US and China.

China aims to use its vast data, collected from its 1.4 billion population including 730 million who are online, and financial resources to overtake the US in creating a $150 billion industry that is seen as the next industrial revolution.

Baidu made an early bet on AI, and is leading its rivals in autonomous driving. Tencent, which boasts 1 billion monthly active users on its social media WeChat app, and Alibaba have adopted AI in operations such as customizing news and ads, and are investing in new fields.

1.What does Luo Si think of AI’s performance in reading comprehension?

A.He feels frightened at it. B.He has some doubts about it.

C.He thinks highly of it. D.He considers it worth a try.

2.What does China depend on to lead in AI?

A.The new industrial revolution.

B.The huge market of $150 billion industry investment.

C.The vast amount of data from its 1.4 billion population.

D.The cooperation between Chinese government and Microsoft.

3.In which field does Baidu do better than its rivals?

A.The medical enquiries. B.The customer service.

C.Customer news feeds. D.The driverless cars.

高三英语阅读理解中等难度题查看答案及解析

We still don't know the exact time for the first human being ________.

A.to have been cloned　　　　　　　　　　　　　 B.being cloned

C.having been cloned　　　　　　　　　　　　　　 D.to be cloned

高三英语单项填空中等难度题查看答案及解析

One step too far

Scientists have been trying to figure out how to alter the genes of humans for many years now, and it looks like they've finally cracked (破解) the code. But while this may seem like a great step forward in science, some also believe that it's one step back when it comes to ethics.

In August, a group of scientists from the US and South Korea worked together to successfully edit a human embryo and remove a genetic mutation (突变) that would have led to heart disease, reported The Guardian.

This was achieved with the help of CRISPR, a gene-editing tool that allows scientists to “cut and paste” human DNA.

Although this was the first example of an embryo's genes being changed successfully, the benefits of gene editing have already been tested in living patients.

In 2015, a five-month-old girl from the UK was saved after doctors used edited cells to fight off her cancer. As of today, she's alive and well.

And in the US last year, scientists managed to remove HIV cells from several patients by editing the genes inside their bodies.

Some people hope that in the future, diseases or birth detects could simply be “edited out”. However, others believe this could lead to so-called designer babies, giving parents the option to choose everything from eye color to intelligence.

“You could find wealthy parents buying the latest ‘upgrades’ for their children, leading to even greater inequality than we already live with,” Marcy Darnovsky, director of the San Francisco Center for Genetics, told BBC News.

In spite of these ethical concerns, experts say it’s not possible to create the “perfect” human being. Despite the progress scientists have made, we don’t understand human genes enough to give all unborn child great brainpower or amazing singing abilities.

“Right now, we know nothing about genetic enhancement,” Hank Greely, a director of sciences at Stanford University, US, told The New York Times. “We’re never going to be able to say, honestly, ‘This embryo looks like it would score high on the two-part SAT.’”

So it looks like if we want good exam results, or to impress people with our piano skills, we’ll have to stick with the old fashioned method of plain hard work — at least for now.

1.The underlined word “alter” in Paragraph 1 probably means ______.

A.record

B.change

C.remove

D.increase

2.Why do some people consider human gene editing a step backwards？ ______

A.They don't think it is an effective way to light diseases.

B.They are concerned that it could lead to genetic mutations.

C.They think it could lead to designer babies and increased inequality.

D.They worry that it could make parents abandon children with birth defects.

3.What was the first successful example of human embryo gene editing？ ______

A.A genetic mutation related to heart disease was removed by scientists

B.A newborn baby with cancer was saved by edited cells.

C.HIV cells were removed from patients’ bodies.

D.Some birth defects were simply edited out.

4.What can we conclude from the text？ ______

A.Gene editing is regarded as the perfect way to treat birth defects.

B.There is still a long way to go to fully understand human genes.

C.Gene editing could help enhance human intelligence in the near future.

D.Scientists are pessimistic about the future of gene editing.

高三英语阅读理解困难题查看答案及解析

______ it be true that we will have to wait for 3 hours in a line to get into the French Pavilion in the Expo Site?

高三英语单项填空中等难度题查看答案及解析

____ making decisions,　 the human brain cannot be compared with　 the computer because in the long process of evolution the slow pace of life didn't require such an ability of the human brain.

A. On behalf of　　 B. In contrast to

C. In salute to　　 D. In terms of

高三英语单项填空中等难度题查看答案及解析

Humans have launched themselves into the outer space. They’ve landed on the moon. They’ve built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planet – specifically, Mars.

The problem is that it’s no easy task. The planet is 586 times further away from the Earth than the moon, and it’ll take around 180 to 220 days to reach Mars, depending on where each planet is in its orbit. Such long periods in space have suggested many potential health problems, including hormonal changes, skin conditions, and muscle and bone deterioration (损耗).

Here’s where some furry friends come in. A wide range of animals have been in space, from fruit flies and spiders to cats, and dogs. Such experiments began as far back as the late 1940s in first tests to see if living things could withstand the extreme g-force (重力) of a rocket launch.

Mice continue to play a very important part in space experiments, mainly because the animals make excellent test subjects. They’re small, which makes them inexpensive and easy to care for. In addition, their size and short life span make it possible to do the equivalent of several human years of tests in a much shorter time. Finally, because mice are mammals, they share many common characteristics with humans in terms of genetics, biology and behavior.

Astromice have hit the headlines recently, as a team of scientists led by Betty Nusgens, professor of biology at the University of Liege in Belgium, found that the mice suffered a 15 percent thinning of their skin after 91 days aboard the International Space Station (ISS).

This experiment was part of a wider NASA mission (任务) called the Mice Drawer System (MDS). The Italian Space Agency developed the facility, which allows six mice to be housed, monitored, and automatically fed and watered aboard the ISS, among which three survived during the mission.

The mice have participated in 20 separate experiments, to study such effects as osteoporosis (骨质疏松症), anemia (贫血) and heart health.

Results for the 20 experiments are coming in gradually. But it’s clear that mice continue to play an important role in the ongoing quest to conquer the final frontier.

1.We can infer from Paragraphs 2-3 that ______.

A. Mars is the farthest planet away from Earth discovered so far

B. the journey to Mars could put humans’ health at risk

C. it was in the late 1940s that animals were first sent to the ISS

D. animals that have been sent into space have mostly survived

2.The underlined word “withstand” in Para.3 means _________.

A.set up　　 　　 B. hold up

C. work out　　 D. come across

3.According to Betty Nusgens and her team, the mice aboard the ISS ______.

A. suffered the loss of part of their skin

B. all survived for the duration of the mission

C. were fed and watered by the astronauts

D. participated in 20 experiments that made great breakthroughs

4. The main purpose of the article is to _____.

A. describe the role mice play in scientific research

B. report on the results of the Mice Drawer System

C. analyze how mice could pave the way to Mars

D. change people’s traditional attitudes toward mice

高三英语阅读理解中等难度题查看答案及解析

Humans have launched themselves into the outer space. They've landed on the moon. They've built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planet–specifically, Mars.

The problem is that it's no easy task. The planet is 586 times further away from the Earth than the moon, and it'll take around 180 to 220 days to reach Mars, depending on where each planet is in its orbit. Such long periods in space have suggested many potential health problems, including hormonal changes, skin conditions, and muscle and bone deterioration (损耗).

Here's where some furry friends come in. A wide range of animals have been in space, from fruit flies and spiders to cats, and dogs. Such experiments began as far back as the late 1940s in first tests to see if living things could withstand the extreme g-force (重力) of a rocket launch.

Mice continue to play a very important part in space experiments, mainly because the animals make excellent test subjects. They're small, which makes them inexpensive and easy to care for. In addition, their size and short life span make it possible to do the equivalent of several human years of tests in a much shorter time. Finally, because mice are mammals, they share many common characteristics with humans in terms of genetics, biology and behavior.

Astromice have hit the headlines recently, as a team of scientists led by Betty Nusgens, professor of biology at the University of Liege in Belgium, found that the mice suffered a 15 percent thinning of their skin after 91 days aboard the International Space Station (ISS).

This experiment was part of a wider NASA mission (任务) called the Mice Drawer System (MDS). The Italian Space Agency developed the facility, which allows six mice to be housed, monitored, and automatically fed and watered aboard the ISS, among which three survived during the mission.

The mice have participated in 20 separate experiments, to study such effects as osteoporosis (骨质疏松症), anemia (贫血) and heart health.

Results for the 20 experiments are coming in gradually. But it's clear that mice continue to play an important role in the ongoing quest to conquer the final frontier.

1.We can infer from Paragraphs 2-3 that ______.

A. Mars is the farthest planet away from Earth discovered so far

B. animals that have been sent into space have mostly survived

C. it was in the late 1940s that animals were first sent to the ISS

D. he journey to Mars could put humans' health at risk

2.The underlined word "withstand"in Para.3 means _________.

A. set up　　 B. hold up

C. work out　　 D. come across

3.According to Betty Nusgens and her team, the mice aboard the ISS ______.

A. suffered the loss of part of their skin

B. all survived for the duration of the mission

C. were fed and watered by the astronauts

D. participated in 20 experiments that made great breakthroughs

4.The main purpose of the article is to _____.

A. describe the role mice play in scientific research

B. report on the results of the Mice Drawer System

C. analyze how mice could pave the way to Mars

D. change people's traditional attitudes toward mice

高三英语阅读理解困难题查看答案及解析

Computers have beaten human world champions at chess and, earlier this year, the board game Go. So far, though, they have struggled at the card table. So we challenged one AI to a game.

Why is poker(扑克)so difficult? Chess and Go are “information complete” games where all players can see all the relevant information. In poker, other players’ cards are hidden, making it an “information incomplete” game. Players have to guess opponents’ hands from their actions----tricky for computers. Poker has become a new benchmark for AI research. Solving poker could lead to many breakthroughs, from cyber security to driverless cars.

Scientists believe it is only a matter of time before AI once again vanquishes humans, hence our human-machine match comes up in a game of Texas Hold’s Em Limit Poker. The AI was developed by Johannes Heinrich, researcher studying machine learning at UCL. It combines two techniques: neural(神经的)networks and reinforcement learning(强化学习).

Neural networks, to some degree, copy the structure of human brains: their processors are highly interconnected and work at the same time to solve problems. They are good at spotting patterns in huge amounts of data. Reinforcement learning is when a machine, given a task, carries it out, learning from mistakes it makes. In this case, it means playing poker against itself billions of times to get better.

Mr Heinrich told Sky News: “Today we are presenting a new procedure that has learned in a different way, more similar to how humans learn. In particular, it is able to learn abstract patterns, represented by its neural network, which allow it to deal with new and unseen situations.”

After two hours of quite defensive play, from the computer at least, we called it a draw.

1.Why can’t the computer beat humans at the poker game?

A.Because humans are cleverer than the computer

B.Because humans practice playing the poker game every day

C.Because the computer can’t know the other players’ cards completely

D.Because the computer can’t learn the regular rules of the poker game

2.What does the underlined word “vanquishes” in Paragraph 3 mean?

A.Leaves B.Defeats C.Cheats D.Serves

3.What do we know about the reinforcement learning of AI?

A.It solves problems correctly every time

B.It is the same as the learning of humans

C.It learns from the mistakes appearing in a task

D.It is more developed than the studying ways of humans

4.What can be inferred from the text?

A.The new procedure of AI has some features of humans

B.Computers are stronger than humans in every aspect

C.Humans will beat computers at playing poker forever

D.Scientists feel unhappy about the result of the poker game

高三英语阅读理解中等难度题查看答案及解析

Computers have beaten human world champions at chess and, earlier this year, the board game Go. So far, though, they have struggled at the card table. So we challenged one AI to a game.

Why is poker(扑克) so difficult? Chess and Go are “information complete” games where all players can see all the relevant information. In poker, other players’ cards are hidden, making it an “information incomplete” game. Players have to guess opponents’ hands from their actions—tricky for computers. Poker has become a new benchmark for AI research. Solving poker could lead to many breakthroughs, from cyber security to driverless cars.

Scientists believe it is only a matter of time before AI once again vanquishes humans, hence our human-machine match comes up in a game of Texas Hold’s Em Limit Poker. The AI was developed by Johannes Heinrich, researcher studying machine learning at UCL. It combines two techniques: neural(神经的) networks and reinforcement learning(强化学习).

Neural networks, to some degree, copy the structure of human brains: their processors are highly interconnected and work at the same time to solve problems. They are good at spotting patterns in huge amounts of data. Reinforcement learning is when a machine, given a task, carries it out, learning from mistakes it makes. In this case, it means playing poker against itself billions of times to get better.

Mr Heinrich told Sky News: “Today we are presenting a new procedure that has learned in a different way, more similar to how humans learn. In particular, it is able to learn abstract patterns, represented by its neural network, which allow it to deal with new and unseen situations.”

After two hours of quite defensive play, from the computer at least, we called it a draw.

1.Why can’t the computer beat humans at the poker game?

A. Because humans are cleverer than the computer.

B. Because humans practice playing the poker game every day.

C. Because the computer can’t learn the regular rules of the poker game.

D. Because the computer can’t know the other players’ cards completely.

2.What does the underlined word “vanquishes” in Paragraph 3 mean?

A. Leaves.            B. Defeats.            C. Cheats.            D. Serves.

3.What do we know about the reinforcement learning of AI?

A. It solves problems correctly every time.

B. It is the same as the learning of humans.

C. It learns from the mistakes appearing in a task.

D. It is more developed than the studying ways of humans.

4.What can be inferred from the text?

A. The new procedure of AI has some features of humans.

B. Computers are stronger than humans in every aspect.

C. Humans will beat computers at playing poker forever.

D. Scientists feel unhappy about the result of the poker game.

高三英语阅读理解中等难度题查看答案及解析