On July 24, 1916, a natural gas explosion trapped 32 men working in a tunnel 250 feet below Lake Erie. The first rescuers who entered the tunnel were 1 by gas, and for hours no one else dared to enter the suffocating (窒息的)2 deathtrap.

    Then, late that night, someone had an idea3 Garrett Morgan and his new invention. Garrett Morgan was a successful 4 owner in Cleveland. The son of freed slaves and the seventh of 11 children, mechanically minded Morgan had opened his own sewing machine shop, which he soon 5 to a tailoring factory with 32 employees.

    In the early 1900s, factory buildings were crowded and untidy. They were often6 of wood, with no fire escapes. Fire could cause serious7 Concerned about his employees, Morgan 8 with a “safety hood” (头罩) that would allow the wearer to9 despite a fire's poisonous smoke.

    Morgan knew smoke rises during a fire10 he created a heat-resistant hood with a long tube reaching to the floor. Wearing Morgan's hood, a firefighter could breathe the 11 air near the 12 Morgan lined the breathing tube with a sponge-like material that was wetted before use to13 the air. A second tube was designed to14 exhaled (呼出的) air.

    Called to the scene on the night of the tunnel explosion, Garrett arrived with samples of his safety hood. Still in their nightwear, he and his brother Frank put on the hoods and 15 entered the tunnel. It was a dangerous 16 of the invention, but they saved two lives and 17four bodies before officials closed the18Morgan knew that more lives might have been saved if he had been called sooner.

    The daring19 made Morgan famous and brought requests for safety hoods from fire departments around the country. But his greatest20 was knowing that his invention would now save more people.

    As a kid I loved everything about school. I loved books1tests and homework. Most of all I longed to someday march down the aisle (通道) to receive my2.That seemed more appealing even than getting married. But at 15, I had to3because my parents4afford tuition. My hope of getting a diploma was dead.

Pretty soon, I married. I had three Children, and I thought: "There5my diploma."

    Even so, I wanted my children to be educated. But Linda, our youngest child, had juvenile arthritis (幼年型关节炎) in her6and knees, which made it7for her to function (活动) in a normal classroom.

    One day, I saw an ad in the newspaper for evening courses.

"That's the answer," I said to myself. Linda always feels8in the evening, so I'll just sign her up for night school.

Linda was busy9out enrollment (入学) forms when the secretary said: "Mrs Schantz, why don't you come back to10?"

I11: "There's no way! I'm 55!"

12he insisted, and before I knew what I had done, I was enrolled for classes in English and crafts. "This is only an experiment," I13him, but he just smiled. To my surprise, both Linda and I thrived (茁壮成长) in evening school. I went back again the next semester, and my grades14improved.

It was15going to school again, but it was no game. Sitting in a class full of kids was awkward,16most of them were respectful and encouraging. During the day, I still had loads of housework to do. But when I was down, Linda encouraged me. "Morn, you can't17now!" And when she was down, I18her. Together we saw it through. At last, I got my diploma19 my classmates voted unanimously (一致地) for me to be class speaker, and I got a ＄3, 000 college scholarship.

    Yes, Mom, I was late for school, but I got there20.

    Born in America, I spoke English, not Chinese, the language of my ancestors. When I was three, my parents flashed cards with Chinese1at my face, but I pushed them 2, my mom believed I would learn3I was ready .But the4 never came.

    On a Chinese New Year's Eve, my uncle spoke to me in Chinese, but all I could do was 5at him, confused, scratching my head. "Still can't speak Chinese?" He 6me, "You can't even buy a fish in Chinatown."

    "Hey, this is America, not China. I'll get some 7with or without Chinese." I replied and turned to my mom for 8.

    "Remember to ask for fresh fish, Xin Xian Yu," she said, handing over a $20 bill. I9 the words, running downstairs into the streets of Chinatown.

I found the fish 10 surrounded in a sea of customers. "I'd like to buy some fresh fish," I shouted to the fishman. But he 11 my English words and turned to serve the next customer. The laugh of the people behind increased 12 their impatience. With every 13, the breath of the dragons(龙) on my back grew stronger—my blood boiling-- 14 me to cry out, "Xian Sheng Yu, please" "Very Xian Sheng," I repeated. The crowd burst into laughter. My face turned 15 and I ran back home16, except for the $20 bill I held tightly in my pocket.

    Should I laugh or cry? They're Chinese. I should feel right at home. 17, I was the joke, a disgrace ( 丢脸)to the language.

    Sometimes, I laugh at my fish 18, but, in the end, the joke is on 19. Every laugh is a culture 20; every laugh is my heritage (传统) fading away.

Omar Vazquez grew up in poverty on Mexico's Yucatan peninsula. He watched his single mother struggle to put food on the table, and today the memory inspires him to help those in need. When an invasive (入侵的) seaweed called sargassum showed up on Mexico's Caribbean beaches, Omar looked past the matter of it all and saw an opportunity to help others.

Sargassum is not dangerous, but it has an unpleasant smell and can become so thick that it keeps people from entering the water. Mexico has experienced record-setting amounts of the seaweed in recent years, and it has made its way to Florida's beaches as well. Experts say there could be as much as 100 tons of sargassum blocking Mexican shorelines in 2023.

With tourism dollars at risk, officials and locals alike were eager to remove the seaweed, but only Omar saw its true potential. The professional gardener organized a beach cleanup that provided jobs for about 300 local families, but he knew there was more to do. Since people's attitude towards the seaweed reminded him of his own life experiences, he decided to become an agent (推动者) for change.

When sargassum started arriving, everyone was complaining. "I wanted to make something good out of something everyone saw as bad," Omar explained.

In 2018, Omar found a way to turn sargassum into building blocks that he calls Sargablock. He creates these blocks by mixing 40% sargassum with other materials like clay, then putting them in a block-forming machine and baking them in the sun for days. The end result is an organic, sustainable, and ecologically friendly building material that experts say could last for 120 years.

To date, Omar's company, Bluegreen Mexico, has used 700 tons of sargassum to build low-income housing for those in need. Omar said he would take on more projects, and donate more houses to single mothers like his own mom.

Sharifkhuja has loved Chinese movies and culture since childhood. His father is also a huge fan of China. Before his {#blank#}1{#/blank#}(graduate)from high school, Sharifkhuja's father suggested that he learn Chinese and go to China in the future.Having studied Chinese for two years in Tajikistan, Sharifkhuja finally came to China {#blank#}2{#/blank#} ( pursue) his dream.

After five years in China, Chinese language and calligraphy {#blank#}3{#/blank#}(become) a part of his life. In his first calligraphy class，Sharifkhuja said that writing with brushes was {#blank#}4{#/blank#}amazing experience, which could help him feel the spirits of Chinese culture. Besides，{#blank#}5{#/blank#} he enjoys most is traditional Chinese music. Sharifkhuja is willing to share his experience in China with his family and friends and introduce Tajik culture to his Chinese pals.

{#blank#}6{#/blank#}(stay) in China for many years, he hopes to work in the embassy(大使馆) {#blank#}7{#/blank#} a cultural bridge between the two countries. Meanwhile, he also {#blank#}8{#/blank#} ( plan) to return home as a Chinese teacher because {#blank#}9{#/blank#}(employ) the skills he acquired in China to improve the education of his motherland is one of his dreams.

However, no matter what Sharifkhuja chooses, his future will be {#blank#}10{#/blank#}( close ) related to Chinese.

China has set new rules limiting the amount of time children can play online games. The rules limit children to just three hours of online game playing a week. That is one hour between 8 p. m. and 9 p. m. on Friday, Saturday and Sunday most weeks. 

Li Zhanguo has two children aged 4 and 8. Even though they do not have smartphones, they enjoy playing online games. Like many other parents. Li is happy with new government rules. But experts say it is unclear if such policies can help prevent addiction to online games. Children might just get addicted to social media instead. In the end, experts say, parents should be the ones to set limits and support good practice. 

There has been a growing concern in China about gaming addiction among children. Government reports in 2018 found that about one in ten Chinese children were addicted to the Internet. The new rules are part of an effort to prevent young people from spending too much time on unhealthy entertainment. That includes what officials call the "irrational fan culture" 

Under the new rules, the responsibility for making sure children play only three hours a day as largely on Chinese gaming companies like Net Ease and Ten cent. Companies have set up real-name registration systems to prevent young users from going past game time limits. They have used facial recognition technology to check their identities. And they have also set up a program that permits people to report what is against the law. It is unclear what punishments gaming companies may face if they do not carry out the policies. And even if such policies are performed, it is also unclear whether they can prevent online addiction. 

A specialist treating Internet addiction expects about 20 percent of children will find ways to break the rules by borrowing accounts of their older relatives and find a way around facial recognition. In his opinion, short-video alps such as Douyin and Kuaishou are also very popular in China. They are not under the same restrictions as games.