1 . On Oct. 11, hundreds of runners competed in a cross-country race in Minnesota. Melanie Bailey should have _________ the course earlier than she did. Her _________ came because she was carrying a _________ across the finish line.

As reported by a local newspaper, Bailey was more than two-thirds of the way through her _________ when a runner in front of her began crying in pain. She _________ to help her fellow runner, Danielle Lenoue. Bailey took her arm to see if she could walk forward with _________. She couldn’t. Bailey then _________ to let Lenoue climb onto her back and carried her all the way to the finish line, then another 300 feet to where Lenoue could get _________ attention.

Once there, Lenoue was _________ and later taken to a hospital, where she learned that she had serious injuries in one of her knees. She would have struggled with extreme __________ to make it to that aid checkpoint without Bailey’s help.

As for Bailey, she is more __________ about why her act is considered a big __________. “She was just crying. I couldn’t __________ her,” Bailey told the reporter. “I feel like I was just doing the right thing.”

Although the two young women were strangers before the __________, they’ve since become friends. Neither won the race, but the __________ of human kindness won the day.

3 . According to the Solar Energy Industry Association, the number of solar panels installed(安装)has grown rapidly in the past decade, and it has to grow even faster to meet climate goals. But all of that growth will take up a lot of space, and though more and more people accept the concept of solar energy, few like large solar panels to be installed near them.

Solar developers want to put up panels as quickly and cheaply as possible, so they haven’t given much thought to what they put under them. Often, they’ll end up filling the area with small stones and using chemicals to control weeds. The result is that many communities, especially in farming regions, see solar farms as destroyers of the soil.

“Solar projects need to be good neighbors,” says Jordan Macknick, the head of the Innovative Site Preparation and Impact Reductions on the Environment(InSPIRE)project. “They need to be protectors of the land and contribute to the agricultural economy.” InSPIRE is investigating practical approaches to “low-impact” solar development, which focuses on establishing and operating solar farms in a way that is kinder to the land. One of the easiest low-impact solar strategies is providing habitat for pollinators(传粉昆虫).

Habitat loss, pesticide use, and climate change have caused dramatic declines in pollinator populations over the past couple of decades, which has damaged the U.S. agricultural economy. Over 28 states have passed laws related to pollinator habitat protection and pesticide use. Conservation organizations put out pollinator-friendliness guidelines for home gardens, businesses, schools, cities—and now there are guidelines for solar farms.

Over the past few years, many solar farm developers have transformed the space under their solar panels into a shelter for various kinds of pollinators, resulting in soil improvement and carbon reduction. “These pollinator-friendly solar farms can have a valuable impact on everything that’s going on in the landscape,” says Macknick.

5 . The sun was beginning to sink as I set off into the Harenna Forest. I was on my way to _________ a unique honey harvest. Here, in south-east Ethiopia, hand-carved beehives(蜂箱)are placed in the _________. Reaching them to get the honey is difficult—and often _________ .

I _________ beekeeper Ziyad over a wide stretch of grassland before entering a thick jungle. Ziyad began preparations. He _________ handfuls of damp tree leaves, wrapped them with string, and _________ the bunch to create a torch(火把). Then, with one end of a rope tied to his waist and the other end around the trunk of a tree, Ziyad began _________ . He stopped every few minutes to move the _________ higher up the tree trunk.

_________ , Ziyad got close to the hive which was around 20 metres above the ground. Sitting on a branch, he __________ towards it and blew smoke from his torch into a tiny hole in the hive. Suddenly, Ziyad let out a sharp cry. Within seconds, he’d __________ the trunk and was back on the ground.

It was too __________ to collect the honey. A cool summer had delayed __________ . Baby bees were still in the honeycombs(蜂巢). The adult bees were __________ and kept attacking as Ziyad escaped from the tree. He had to wait for the right __________ to go back up.

9 . Live with roommates? Have friends and family around you? Chances are that if you’re looking to live a more sustainable lifestyle, not everyone around you will be ready to jump on that bandwagon.

I experienced this when I started switching to a zero waste lifestyle five years ago, as I was living with my parents, and I continue to experience this with my husband, as he is not completely zero waste like me. I’ve learned a few things along the way though, which I hope you’ll find encouraging if you’re doing your best to figure out how you can make the change in a not-always-supportive household.

Zero waste was a radical lifestyle movement a few years back. I remember showing my parents a video of Bea Johnson, sharing how cool I thought it would be to buy groceries with jars, and have so little trash! A few days later, I came back with my first jars of zero waste groceries, and my dad commented on how silly it was for me to carry jars everywhere. It came off as a bit discouraging.

Yet as the months of reducing waste continued, I did what I could that was within my own reach. I had my own bedroom, so I worked on removing things I didn’t need. Since I had my own toiletries (洗漱用品), I was able to start personalising my routine to be more sustainable. I also offered to cook every so often, so I portioned out a bit of the cupboard for my own zero waste groceries. Perhaps your household won’t entirely make the switch, but you may have some control over your own personal spaces to make the changes you desire.

As you make your lifestyle changes, you may find yourself wanting to speak up for yourself if others comment on what you’re doing, which can turn itself into a whole household debate. If you have individuals who are not on board, your words probably won’t do much and can often leave you feeling more discouraged.

So here is my advice: Lead by action.

10 . A machine can now not only beat you at chess, it can also outperform you in debate. Last week, in a public debate in San Francisco, a software program called Project Debater beat its human opponents, including Noa Ovadia, Israel’s former national debating champion.

Brilliant though it is, Project Debater has some weaknesses. It takes sentences from its library of documents and prebuilt arguments and strings them together. This can lead to the kinds of errors no human would make. Such wrinkles will no doubt be ironed out, yet they also point to a fundamental problem. As Kristian Hammond, professor of electrical engineering and computer science at Northwestern University, put it: “There’s never a stage at which the system knows what it’s talking about.”

What Hammond is referring to is the question of meaning, and meaning is central to what distinguishes the least intelligent of humans from the most intelligent of machines. A computer works with symbols. Its program specifies a set of rules to transform one string of symbols into another. But it does not specify what those symbols mean. Indeed, to a computer, meaning is irrelevant. Humans, in thinking, talking, reading and writing, also work with symbols. But for humans, meaning is everything. When we communicate, we communicate meaning. What matters is not just the outside of a string of symbols, but the inside too, not just how they are arranged but what they mean.

Meaning emerges through a process of social interaction, not of computation, interaction that shapes the content of the symbols in our heads. The rules that assign meaning lie not just inside our heads, but also outside, in society, in social memory, social conventions and social relations. It is this that distinguishes humans from machines. And that’s why, however astonishing Project Debater may seem, the tradition that began with Socrates and Confucius will not end with artificial intelligence.