相关试卷

1、The United States is jam-packed with reminders of our huge oil appetite: since the 1850s, there have been around 3.5 million oil wells across the country. Yet, many of those were abandoned after the companies ran out of business. These forgotten sites, referred to officially as "undocumented orphan wells" (UOWs), can release dangerous chemicals for years. Locating these long-inactive wells is a highly time-consuming process: you could spend countless hours pouring over hundreds of thousands of old maps. However, Artificial Intelligence may offer a faster choice.

Researchers from Berkeley Lab detailed their process for training such an AI model in an article published this week. Based on around 100 maps spanning 45 years, the team asked the AI specifically to identify symbols shaped like a hollow (中空的) black circle that was commonly used to identify oil well. A human data expert then spent 40 hours identifying examples of these symbols which then served as the AI model's training set. When training the AI, the researchers had to consider other symbols with similar-looking circular patterns that could be mistakenly identified and result in false positives. Some maps were in relatively good condition, but others were worn down over time. Berkeley Lab scientist Charuleka compared this process to "finding a needle in a haystack (干草垛)".

Once the AI was fully trained to recognize the well symbols, the researchers then applied it to thousands of maps. The model came back with the locations of 1,301 potentially undocumented orphan wells. Scientists then used satellite images from Google Earth to check the locations, looking for visible surface features like well structures and storage tanks, and confirmed 29 wells. For wells invisible from above, researchers conducted on-site investigations using equipment to track down underground metal pipes, confirming an additional 15 wells. Looking ahead, researchers aim to combine AI's predictive abilities with other modern technologies to speed up the shutting-down process.

"AI can enhance our understanding of the past by processing information from historical data on a scale that couldn't be achieved just a few years ago," Charuleka noted, "The more we go into the future, the more you can also use the past."

2、Recent studies indicate that both animals and plants possess the ability to swiftly adapt to challenging environmental conditions to ensure their survival. A study published in the journal Trends in Plant Science explores the rapid adaptation processes of plants in response to climate change and how these adaptive traits are inherited by their offspring (后代).

Plants are encountering more environmental challenges than ever. For instance, in numerous regions, the impact of climate change is leading to shorter winter seasons, and plants are adapting accordingly. "Many plants require a minimum period of cold in order to set up their environmental clock to define their flowering time," says Martinelli, a plant geneticist at the University of Florence. "As cold seasons shorten, plants have adapted to require shorter periods of cold to delay flowering. These processes allow plants to avoid flowering in periods when they have fewer opportunities to reproduce."

Since plants lack neural systems, their memory functions rely entirely on cellular, molecular (分子的), and biochemical networks. These networks make up what the researchers call somatic memory (体细胞记忆). "It allows plants to recognize the occurrence of a previous environmental condition and to react accordingly," says Martinelli.

These somatic memories can then be transmitted to the plants' offspring through epigenetics (表现遗传). "Several examples demonstrate the existence of molecular processes modulating plant memory to environmental stresses and affecting the adaptation of offspring to these stresses," says Martinelli.

Moving forward, Martinelli aims to gain deeper insights into the specific genes that are being inherited. "We are particularly interested in decoding the epigenetic code without changes in DNA sequence (序列)," he says. "This is especially important when we consider the rapid climate change, we observe today that every living organism, including plants, needs to quickly adapt to survive."

3、A few weeks ago, I had the opportunity to join a Hollywood film as an extra (群众演员) in Paris. I had little idea of exactly what to expect before setting off. But I certainly wasn't thinking that one of the biggest advantages would be spending hours with other people without access to our phones.

On set, phones were locked away after makeup. Without screens, we faced something unusual: real conversations. During long waits between scenes, people actually talked. An art student sketched tattoo ideas for me; a Parisian actor shared her love for Vietnamese food; a Haitian man told stories of his childhood. We played games, debated silly theories, and laughed freely. It felt like stepping into a world before smartphones ruled our attention.

This experience made me realize how technology has changed us. Once technology did bring people together, but gradually they grabbed and then destroyed our attention spans and left so many of us with smartphone addiction; social media grabbed and destroyed our ability to share an informational environment. And now AI threatens to grab and atrophy (使萎缩) our mental muscles entirely.

Yet, I see hope. I think we are at the beginning stages of a quite significant backlash to that. Teens are choosing simple flip phones; people attend digital detox events; those stupid QR-code menus are swiftly disappearing; three-and-a-half-hour long podcasts get millions of listens. We're slowly fighting back against endless distractions.

Years ago, I visited an art exhibit in Paris where the "art" was simply conversations with strangers. Like that exhibit, life requires time and presence. On the film set, pretending in a fictional world ironically brought us closer to what's real — human connection.

Though my acting role was small, those phone-free hours reminded me: true joy lies not in screens, but in the messy, unpredictable moments we share

4、Hiking Routes Along the Icefields Parkway

Canada's unspoiled natural beauty is matched only by its cosmopolitan cities. If you have plenty of time and aren't in a hurry to drive north to south, there are several great hikes, both short and long, that starts just off the parkway.

Lake Louise to Lake Agnes Teahouse: The Lake Agnes Teahouse is 1.3 miles above Lake Louise, at an altitude of 7.005 feet. The hike up takes between one and two hours and offers excellent views of Lake Louise along the way.

Bow Summit Lookout: This family-friendly hike takes visitors to the highest point along the Icefields Parkway, a lookout point where you can see both Peyto Lake and Bow Lake. Keep an eye out for marmot (旱獭), native birds, and pikas (鼠兔) along the way. The return trip is only about 3.5 miles long.

Helen Lake: Adjacent to the Crowfoot Glacier at Bow Lake, the 4.5-mile in-and-out hike to Helen Lake is moderately challenging and very popular. As well as great lake views, a highlight of this trail is the gorgeous wildflowers in the summer. It can be done in between three and five hours, depending on your speed and fitness. Expect snow in the fall and spring seasons.

Paradise Valley to Moraine Lake: If you're an experienced hiker seeking a challenge, the physically-demanding 7.7-mile route between Paradise Valley and Moraine Lake will keep you interested. It can be done in one long day (about eight hours) by fit hikers. The lake views and forests of larch trees are the highlights. Summer hikes are relatively easy, but more preparations are needed in winter.

5、听下面一段独白，回答以下小题。

6、听下面一段较长对话，回答以下小题。

7、听下面一段较长对话，回答以下小题。

8、听下面一段较长对话，回答以下小题。

9、听下面一段较长对话，回答以下小题。

10、When is the woman's plane due to leave?

11、What will Asher do this summer?

12、How will the woman go to visit her grandparents?

13、What are the speakers mainly talking about?

14、What is the woman probably doing?

15、假定你是李华，你的英国笔友Tom对近期申遗成功的中国春节很感兴趣，请你写一封邮件向他介绍春节期间你所经历的一次民俗体验。内容包括：

1. 民俗体验过程。

2. 体会或感受。

注意：1. 词数80左右；

2. 可适当增加细节，以使行文连贯。

参考词汇：intangible cultural heritage 非物质文化遗产 folk-custom 民俗

Dear Tom,

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua

16、人们缺乏睡眠时往往容易感到疲倦。

People tired easily when they lack sleep.

17、当她听到这个坏消息时，绝望地坐在那里。

She sat there when she heard the bad news.

18、尽管下着大雨，他仍然按时去上学了。

the heavy rain, he still went to school on time.

19、这家商店里商品的价格从10美元到100美元不等。

The prices of the products in this store 10 dollars 100 dollars.

20、技术进步给我们的日常生活带来了重大变化。

Technological advancements have significant changes in our daily lives.