1 . The Mona Lisa is the famous Leonardo da Vinci painting of a woman with a mysterious smile. This week, the painting gave up a secret.
Scientists using X-rays to examine the chemical structure of a small part of the painting discovered a technique Leonardo used in the work. An oil paint used for it was a special, new chemical mixture, which suggests that the Italian artist was in an experimental mood when he worked on the painting in the 16th century.
“He loved to experiment, and each of his paintings is completely different technically,”said Victor Gonzalez, a chemist who has studied the chemical element (成分) of several works by Leonardo and other artists. The researchers found a rare lead compound (铅化合物) — plumbonacrite, in Leonardo’s first layer of paint. The discovery proved that da Vinci most likely used lead oxide to thicken and help dry his paint. The paint in the study is about the thickness of a human hair, lying in the top right area of the painting.
The scientists looked into its atomic structure using X-rays, moving particles at the speed of light, permitting researchers to look deeper into the paint structure. “ Plumbonacrite is really a fingerprint of his recipe, as it’s the first time we can chemically confirm it,” Gonzalez said.
Dutch artist Rembrandt may have used a similar mixture when he was painting in the 17th century. Gonzalez and other researchers have found plumbonacrite in his work, too. Leonardo is thought to have put lead oxide powder, which has an orange color, in the oil to make it thicker and dry faster. “What you will get is an oil that has a very nice golden color,” Gonzalez said. “It flows more like honey.”
But the Mona Lisa — said by the Louvre to be a portrait (肖像) of Lisa Gherardini, the wife of a Florentine silk businessman — and additional works by Leonardo still have other secrets to tell. “What we are saying is just a little brick in the knowledge,” Gonzalez said.
1. What’s the new discovery about the Mona Lisa?| A．A new explanation of the secret smile. |
| B．A new chemical element used in the painting. |
| C．The secret of the woman in the painting. |
| D．The structure of the paint da Vinci used. |
| A．Open secret. | B．Widespread use. | C．Hidden element. | D．Long-term dream. |
| A．It helps to make many things into paints. |
| B．It helps to make paints easy to deal with. |
| C．It helps to keep the paintings last long. |
| D．It helps to make paintings rich in color. |
| A．It has more secrets to tell the world. |
| B．It’s the portrait of a silk businessman. |
| C．It’s well kept in bricks in the Louvre. |
| D．It has a mixture of different art styles. |
2 . As a child, I was fascinated by the world of theater and began taking classes at the age of 7. Throughout my teenage years, I actively
Despite this, in my everyday life, I was often plagued (困扰) by
Performing was an excellent way for me to
Looking back, my time as a
| A．participated in | B．carried out | C．dealt with | D．applied for |
| A．Studying | B．Dancing | C．Acting | D．Teaching |
| A．predict | B．confirm | C．influence | D．experience |
| A．results | B．benefits | C．features | D．rules |
| A．generous | B．familiar | C．confident | D．strange |
| A．curiosity | B．excitement | C．misunderstanding | D．nervousness |
| A．places | B．cities | C．groups | D．cultures |
| A．sports | B．roles | C．matches | D．songs |
| A．missed | B．challenged | C．changed | D．acquired |
| A．overcome | B．ignore | C．remove | D．hide |
| A．adventurous | B．casual | C．skillful | D．funny |
| A．Moreover | B．Therefore | C．Otherwise | D．However |
| A．task | B．plan | C．story | D．future |
| A．persuasion | B．support | C．permission | D．comfort |
| A．reminded | B．inform | C．assured | D．warned |
| A．emotional | B．creative | C．popular | D．professional |
| A．freedom | B．growth | C．adaptation | D．satisfaction |
| A．suitable | B．acceptable | C．valuable | D．flexible |
| A．eager | B．sorry | C．grateful | D．ready |
| A．heard | B．supposed | C．expected | D．learned |
1. 选择一个领域进行陈述（如日常生活、医疗、汽车制造等）；
2. 描述机器人在该领域的应用（可举例说明）；
3. 介绍机器人的优势所在。
注意：写作词数应为80左右。
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4 . Sometimes I scratch my head when I read about the government’s efforts to improve schools: new standards and tests to be applied, strict teacher evaluations, and threats of school closures and job losses. They frighten the school employees, not to mention the students. Instead of making people unable to solve problems or try new ideas-which is what fear does to us-research on school reform strongly suggests that policy-makers should encourage school leaders to take a more humane approach. In their study on the reform efforts of twelve Chicago public schools, Bryk and Schneider found that enabling positive social relationships between the adults was the key to successful school improvement and that trust was at the heart of those relationships.
Trust in schools comes down to one thing: psychological safety or safety to speak one’s mind, to discuss with openness and honesty what is and isn’t working, to make collective decisions.
Yet this kind of safety doesn’t come easily to schools. According to Bryk and Schneider, the adults in school rely on each other to do their jobs correctly and with integrity (正直). The challenge is that our expectations are very diverse based on our unique backgrounds.
At one school where I taught, each teacher had different expectations about how much effort teachers should put into their work-a big difference between the teachers who left at the last bell and those who worked into the evening. And when expectations are unspoken, it becomes impossible for others to live up to them.
We also make assumptions about the intentions behind a person’s behavior. As we all know, assumptions are often wrong. For example, parents and teachers may think the principal takes particular decision based on his career advancement rather than that is best for the students, who don’t feel psychologically safe to question our assumptions, trust files out the window and our relationships suffer.
1. According to Paragraph 1, why does the author scratch his head?| A．Because he doesn’t know what to do once schools are closed. |
| B．Because he is not sure about the practicability of those new tests. |
| C．Because he is concerned that many teachers will lose their jobs. |
| D．Because he is not in favor of the government’ s reform efforts. |
| A．New standards and tests in schools. |
| B．Positive social relationships. |
| C．Strict teacher and student evaluations. |
| D．Assistance of the government. |
| A．Freedom to express one’ s views. |
| B．Extra effort teachers put into their work. |
| C．Independence of the teachers in schools. |
| D．Unconscious and unspoken expectations. |
| A．They should be trusted. |
| B．They are often bold. |
| C．They are often incorrect. |
| D．They should be encouraged. |
5 . Technology has revolutionized (使革命化) the way we work in many ways. One of the most significant changes has been the shift towards remote and flexible work. With the rise of internet and cloud-based software, workers are no longer tied to a physical office and can work from anywhere with an internet connection. This has allowed for greater flexibility and work-life balance, as well as reduced commuting (通勤) time and costs.
Another major change is the increasing use of automation and artificial intelligence in the workplace. This has the potential to increase efficiency and productivity, as well as reduce the need for certain types of work. However, it also raises concerns about job displacement and the need for workers to adapt to new technologies.
Finally, technology has greatly expanded the types of jobs available. With the rise of the gig (临时工) economy and freelance (自由职业者) work, workers can now find opportunities in areas such as graphic design (平面设计), copywriting (文案撰写), and social media management. This has created opportunities for individuals to work in areas that were previously inaccessible or did not exist.
1. What is the shift in the way we work brought about by technology?| A．Flexible and remote work. | B．Tying people to a physical office. |
| C．Increased commuting and travel. | D．Higher costs and lower productivity. |
| A．It has reduced work-life balance. | B．It has increased commuting time and costs. |
| C．It has allowed for greater flexibility and work-life balance. | D．It has caused job displacement. |
| A．Increased job displacement. | B．Reduced efficiency and productivity. |
| C．Increased efficiency and productivity. | D．Increased commuting and travel. |
| A．Technology has decreased the number of available jobs. |
| B．Technology has created opportunities for individuals to work in areas that were previously inaccessible or did not exist. |
| C．Technology has only impacted traditional office jobs. |
| D．Technology has increased commuting time and costs. |
6 . The sharing economy is a trend that has been growing in recent years. This economy is based on sharing resources, such as cars, homes, and even clothing, rather than owning them outright. Some popular examples of the sharing economy include Uber, Airbnb, and Lyft.
The sharing economy has several potential benefits. For one, it can help reduce waste and increase sustainability(可持续性), as resources are being used more efficiently. Additionally, it can help provide more affordable options for consumers, as well as create new sources of income for people who may not have had access to traditional job opportunities.
However, there are also potential drawbacks to the sharing economy. Many of the workers in the sharing economy are considered independent contractors, which means they are not entitled to the same benefits and protections as traditional employees. Additionally, there have been concerns about safety and insurance coverage for both the workers and consumers using these services.
1. What is the sharing economy?| A．An economy based on owning resources outright. |
| B．An economy based on sharing resources. |
| C．An economy based on consuming more resources. |
| D．An economy based on throwing away resources. |
| A．It can create more waste and reduce sustainability. |
| B．It can create more expensive options for consumers. |
| C．It can provide affordable options for consumers and create new sources of income. |
| D．It can reduce job opportunities. |
| A．Private car ownership, traditional hotels, and taxis. |
| B．Public transportation, traditional hotels, and taxis. |
| C．Uber, Airbnb, and Lyft. |
| D．Uber, private car ownership, and public transportation. |
| A．It can create more traditional job opportunities. |
| B．It can eliminate traditional job opportunities. |
| C．It can provide new sources of income. |
| D．It can reduce job opportunities. |
| A．apply for | B．make fun of |
| C．keep track of | D．first of all |
8 . How do you spend your spare time? There will be different answers to it. Most people in Poland(波兰) have their own ways of spending free time. Sometimes they just want to have a rest, but they try to do something more pleasant most of the time. They have many different hobbies, which help them to get away from their everyday problems and spend their free time happily.
Many Polish(波兰的) people like travelling. They look for new places that they have never been to and add new and exciting experiences to their journey. Some of them like to climb mountains, others like to go to the sea or a lake to swim, because these can make them get exercise and are good for their health.
Many Polish people also like to watch sports in their free time. They are usually crazy about football, and football is regarded as the Polish national sport. Many football fans may support a certain team, so they go to watch every match of the team they support, and they buy many things that have any relation with the team. Watching a sport and doing it are both good ways to relax.
In addition, doctors say that doing sports is very good for the health. Many people in town, especially young men, often go to the gym to attend the exercise classes to keep fit.
Besides these ways, Polish people have many other ways to spend their free time. And they really enjoy their free time.
1. Polish people have many different hobbies in order to ________.| A．solve their daily problems | B．finish all their work |
| C．make some friends | D．relax themselves in their spare time |
| A．Because they hate travelling. | B．Because they can get exercise from it. |
| C．Because they can find a new place. | D．Because it is comfortable and funny. |
| A．Playing football. | B．Climbing mountains. |
| C．Skating. | D．Swimming. |
| A．损坏 | B．营救 |
| C．侵袭 | D．滑雪 |
| A．朋友 | B．友好的 |
| C．姐妹 | D．兄弟 |
