1 . The first wave of concerns over artificial intelligence(AI)in 2023 appeared soon after New Year’s Day when classrooms reopened and schools from Seattle to Paris started blocking ChatGPT, a powerful software based on AI large language models, because teenagers were using it to do their homework.

The AI large language models behind such products as ChatGPT work by repeatedly guessing the next word in a sentence after having “learned” the rules from a huge amount of/human-written works. Although they often get facts wrong, their answers appear so natural that Keven, their inventors begin to worry about their possible use for spreading false information.

People became more worried when various AI products started to create not just texts but novel images, music and human voices, which threatened the livelihoods of anyone who writes, draws or sings for a living. It led to strikes by Hollywood writers and actors and legal challenges from artists and bestselling authors. Some of the most respected scientists even warned that the technology’s unchecked progress was possibly threatening human existence. “In the longer term, they might manage our attention,” pioneering AI scientist Fei Fei Lisaid. “They would tell us which video to watch, which book to read or whose communication to respond as AI technology’s abilities improve rapidly. They could be a very good assistant, but also with really big risks.”

Li hoped that 2023 is going to be a year for people to think about what Al is, how to use it and what the effects are — all the good, the bad and the ugly.

“It’s easy to forget that they are not the first wave of AI products. Computer vision techniques developed by Li and other scientists have helped sort through a huge database of photos to recognize objects and individual faces and guide self-driving cars. Speech recognition advances have made voice assistants like Siri and Alexa a normal thing in many people’s lives,” said Tom Gruber, co-founder of Siri Inc.

1. Why did schools try to stop their students from using ChatGPT?

A．ChatGPT often got facts wrong in the class.

B．Students spent too much time on the software.

C．ChatGPT helped students spread false information.

D．Students used the software to cheat at their homework.

2. What are the second and third paragraphs mainly about?

A．AI’s training costs.	B．ATs amazing abilities.
C．AI’s possible threats.	D．AI’s fast developments.

3. What would Tom Gruber most probably suggest people do?

A．Think carefully about AI’s impact.	B．Welcome AI technology
C．Do use ChatGPT more carefully.	D．Upgrade ChatGPT in time.

4. Where is the text most probably taken from?

A．A news report.	B．A guide book to a software.
C．A product review.	D．An introduction to a person.

2 . Buy land, advised Mark Twain； they're not making it any more. In fact, land is not really scarce: the entire population of America could fit into Texas with more than an acre for each household to enjoy. What drives prices rocket is a collision between uncontrolled demand and limited supply in the great metropolises like London, Mumbai and New York. In the past ten years real prices in Hong Kong have risen by 150%. Residential（住宅的）property in Mayfair, in central London, can go for as much as £55,000（$82,000）per square metre. A square mile of Manhattan residential property costs $16.5 billion.

Even in these great cities the scarcity is artificial. Regulatory limits on the height and density（密度）of buildings constrain（限制）supply and increase prices. A recent analysis by academics at the London School of Economics estimates that land-use regulations in the West End of London inflate the price of office space by about 800%; in Milan and Paris the rules push up prices by around 300%. Most of the enormous value captured by landowners exists because it is almost impossible to build new offices to compete those profits away.

The costs of this misfiring property market are huge, mainly because of their effects on individuals. High housing prices force workers towards cheaper but less productive places. According to one study, employment in the Bay Area around San Francisco would be about five times larger than it is but for tight limits on construction. Add up these costs in lost earnings and unrealized human potential, and the figures become dizzying. Lifting all the barriers to urban growth in America could raise the country's GDP by between 6.5% and 13.5%, or by about 1 trillion—2 trillion. It is difficult to think of many other policies that would produce anything like that.

1. Why does the author refer to Mark Twain?

A．To persuade people to buy land.

B．To present the topic.

C．To emphasize his influence on city development.

D．To arise readers5 interest.

2. What could be the main reason of the rising prices of land?

A．Regulatory limits.	B．Economic crisis.
C．Supply-demand imbalance.	D．Population growth.

3. What does paragraph 2 intend to tell us?

A．Housing prices in big cities are increasing.

B．Enormous value of land is mainly captured by the minority.

C．It’s possible to construct many new offices to share the profits.

D．The fact that land is scarce in big cities is made by regulatory policies.

4. What’s the author’s attitude towards tight limits on construction?

A．Ambiguous.

B．Critical.

C．Favourable.

D．Tolerant.