2 . Recently, I pulled a jacket from my wardrobe, paired it with my red trousers and earrings, and hit the town for a book signing event. That night, I found myself unexpectedly satisfied. I got more praise over this jacket than I had got in years. But what made me feel way better was to respond, “Thank you. I bought it at a second-hand shop.”

Not only did I spend minimal amount on a clearly unbelievable find, but I also joined the ranks of consumers turning to circular fashion”-a growing trend in refreshing our wardrobe and producing new clothes in more planet-friendly ways.

As for the clothing industry; it produces close to 10% of the world's carbon dioxide emissions (碳排放) and is a massive consumer of the world's water supplies. To create a single pair of jeans, for example, requires nearly 2,000 gallons of water. And each year, around 8 billion barrels of oil are used to produce artificial materials.

Consumers also contribute to the problem. They buy cheap new clothes, wear them a few times, and then throw them out. The Environmental Protection Agency (EPA) estimates that Americans threw away 16 million tons of clothing in 2018, with only 15 percent recycled--the rest ended up in landfills or being exported abroad.

Something’s got to give. Scientists are working to develop less harmful carbon-negative fabrics, while some leading brands are shifting from linear take-make-waste economies to circular ones in which fewer clothes are made, waste and pollution are vastly reduced, and the used clothing is given new life.

But there’s also a role for the individual in addressing the problem. “Following the circular fashion, you’ll build an affordable cupboard that's better for the planet,” says Gama, co-founder of a company that helps brands scare their recycling and resale programs.

According to ThredUP, the world’s largest fashion resale platform, the U.S. second-hand market is expected to more than double by 2026. “Our resale report data found that over half of the consumers are more opposed to waste, both financially and environmentally, says ThredUP president Anthony Marino.

4 . One Saturday afternoon in a small town, Emma came out of a shoe shop with some new shoes. They were _________ shoes, but Emma was very _________ with them. She was seventy-three years old and did not have much money. She began to _________ home.

It was a _________ town and there was nobody in the street. _________, Emma heard something behind her. She did not have time to look, because just then somebody ran up behind her, hit her on the _________, and snatched(抢夺)her bag out of her hands. Emma _________.

“Help! Help!” Emma cried. But nobody came. Emma _________ got up and went to the nearest house. The people there were very _________ and gave Emma a cup of tea. Soon an ambulance came and took her to a __________.

At the hospital a doctor looked at Emma’s head and back and told her to stay in hospital for a few days. Emma thanked the __________.

Later, a policeman __________ the hospital and Emma told him about the bag-snatcher. The policeman __________ a small bag. In it there were a lot of pictures of eyes and ears, hair and mouths. Carefully Emma took the small pictures and __________ a big picture of the young man’s face.

After two days, in a morning a policeman came to the hospital with Emma’s new shoes and an empty bag. “A little girl __________ them in the street and took them to the police station,” he said. “How kind she is! Thank you very much,” Emma said and felt happy, though she lost some money.

5 . Quantum ( 量子 ) computers have been on my mind a lot lately. A friend has been sending me articles on how quantum computers might help solve some of the biggest challenges we face as humans. I’ve also had exchanges with two quantum-computing experts. One is computer scientist Chris Johnson who I see as someone who helps keep the field honest. The other is physicist Philip Taylor.

For decades, quantum computing has been little more than a laboratory curiosity. Now, big tech companies have invested in quantum computing, as have many smaller ones. According to Business Weekly, quantum machines could help us “cure cancer, and even take steps to turn climate change in the opposite direction.” This is the sort of hype ( 炒作 ) that annoys Johnson. He worries that researchers are making promises they can’t keep. “What’s new,” Johnson wrote, “is that millions of dollars are now potentially available to quantum computing researchers.”

As quantum computing attracts more attention and funding, researchers may mislead investors, journalists, the public and, worst of all, themselves about their work’s potential. If researchers can’t keep their promises, excitement might give way to doubt, disappointment and anger, Johnson warns. Lots of other technologies have gone through stages of excitement. But something about quantum computing makes it especially prone to hype, Johnson suggests, perhaps because “‘quantum’ stands for something cool you shouldn’t be able to understand.” And that brings me back to Taylor, who suggested that I read his book Q for Quantum.

After I read the book, Taylor patiently answered my questions about it. He also answered my questions about PyQuantum, the firm he co-founded in 2016. Taylor shares Johnson’s concerns about hype, but he says those concerns do not apply to PyQuantum.

The company, he says, is closer than any other firm “by a very large margin ( 幅度 )” to building a “useful” quantum computer, one that “solves an impactful problem that we would not have been able to solve otherwise.” He adds, “People will naturally discount my opinions, but I have spent a lot of time quantitatively comparing what we are doing with others.”

Could PyQuantum really be leading all the competition “by a wide margin”, as Taylor claims? I don’t know. I’m certainly not going to advise my friend or anyone else to invest in quantum computers. But I trust Taylor, just as I trust Johnson.