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比起我们新老师生动的课程，旧的教科书显得无趣。

我的旧背包在背了三年很重的书之后终于散架了。

Recently, an unmanned supermarket opened on our campus, causing excitement among students. Here I can hardly wait (detail) this shopping experience.

Walking into the store felt like (step) into a sci-fi movie. The store has smart shelves design uses advanced sensor technology. It also has self-checkout counters. After I picked up a snack and a drink and scanned their QR codes, the system, which relies on the technology of facial (recognize) , immediately showed the total, taking less than 2 minutes. shopkeepers, the store depends on students' honesty to pay for items. This tryout in trust and respect, which saves time, develops responsibility and encourages conversations about innovation, made me proud of our campus community in unique way.

While the idea is promising, a few improvements, (base) on current shortcomings, could enhance the experience. First, adding more self-checkout machines would reduce waiting time during busy periods. Second, (clear) labels explaining the shopping steps might help first-time users, as I didn't know how and where to scan items at first.

The unmanned supermarket is a brave step toward a tech-driven campus life and (set) a good example for other schools so far. After all, combining technology with trust does make our campus (true) special.

Houston was a world4 from Southern California, where I had grown up, studied, married, and raised two daughters. Moving here5 my husband's job relocation was a major challenge6 when most of my friends were considering retirement. With my daughters grown, the busy days of PTA meetings, team mom duties, and school events were behind me. How could I make friends in a city where I knew almost no one? Would my aging dogs be my only7?

The answer came8 from Annie, my real estate agent. She called and asked, "Dana, are you interested in joining USA Fit here in town?" I wasn't sure what it was, but I knew Annie was a serious runner — she'd9 talked about marathons.

"What does it10? Is it about running? Because that's really not my11," I said, hoping she sensed my12. But Annie didn't give up. "You'll love it! It's a group of runners and walkers13 together for six months. You'll make friends — trust me!"

Though doubts14 my mind, the possibility of building new connections drew me in. Before I knew it, I was15 among the "purple people" — the half marathon walking group — on my very first training day.

Over the course of a series of essay-writing periods, students working with as well as without an AI chatbot had their brain activity measured. Across the board, the AI users showed markedly lower brain activity in areas connected with creative functions and attention.

Whether AI will leave people's brains weak in the long term remains an open question. Researchers behind this study have stressed that further work is needed to build a causal link between increased AI use and weakened brains. After all, the study had a tiny sample size and focused on a single narrow task.

Moreover, generative-AI tools clearly seek to lighten people's mental loads, as many other technologies do. Concerns about this kind of offloading aren't new. As long ago as the 5th century BC, Socrates was quoted as complaining that writing is not "a potion (神药) for remembering, but for reminding". Calculators spare cashiers from computing a bill. Navigation apps remove the need for map- reading. And yet few would argue that people are less able as a result.

There is little evidence to suggest that letting machines deal with users' mental tasks changes the brain's ability to think. But the worry is that generative AI allows one to offload a thought process. And once the brain has developed a taste for offloading, it can be a hard habit to kick. As one user put it, "I rely so much on AI that I don't think I'd know how to solve certain problems without it. "

The technology is so young that, for many tasks, the human brain is still the sharpest tool in the toolkit. But in time people will have to judge whether its wider benefits can cover cognitive (认知) costs. If stronger evidence appears that AI makes people less smart, will they care?