One day, I was cooking with my friend Sandy in the kitchen. Suddenly, Sandy cut her finger. I went to her quickly. But to my surprise, I saw computer chips in her finger.

   “Now you know my secret, you have to die!” Sandy said and picked up the knife. “No, please, Sandy. Aren't we good friends?” I shouted. But before Sandy could say anything, she fainted.

    “Oh, Sandy!” I took her to hospital in a hurry. After a doctor checked her, he said, “I'm afraid we can't help her. Why don't you take her to a robot centre?”

      I hurried to a robot centre. A few days later, Sandy was well. She asked, ”Mary, why did you save me even after I tried to kill you? ”

“Because I'm sure you are my friend. Can you tell me where you are from?” “I'm from another planet. It's far from here. Thank you, my friend Now I see how friendly people are on the earth.”

      Two days later, a UFO came and picked her up. Since then I've never seen her.

    Alan Smith is blind. He teaches blind children in his country. To show the world that the blind can also do something amazing, he walked across the world's largest salt desert, Salar de Uyuni, only with the help of a GPS.

    Walking across the desert is not easy for an able-bodied person, let alone (更不用说) a blind man. Before setting off, Alan spent three years training for the journey. He studied everything he could find about the place and asked for advice from other travelers. During his journey, he only took water, food and sleeping bags. He walked about 20 kilometers a day. He showed great perseverance (毅力) and finished the 140-kilometer journey in just seven days.

    The brave teacher thought his week-long journey was wonderful. He said, "The journey was quite good. There were snow storms and winds, but luckily I made it."

Every week, Wu Lin, a 19-year-old college student, will wait at a store selling food nearing its expiration date (保质期) , and return to school with a bag of snacks. "These products are usually sold at 30% to 50% off and many of them are from big brands. I'm really a big fan of them," she said.

Wu is among a growing number of young Chinese who buy near-expired food. According to a report by iiMedia Research, China's near-expired food market went beyond 30 billion yuan in 2020 and 47.8 percent of the consumers were aged 26 to 35.

Unlike the traditional thought that buying such food is penny-pinching（吝啬的） or embarrassing, more and more young people like Wu regard it as a way to help reduce food waste. "I don't care much about the date, as long as I can eat them before their expiration dates. It meets my needs while saving resources and protecting the environment, which is a good thing," says Wu.

Physical stores (实体店) selling near-expired food have sprung up (突然兴起) in cities across China. HotMaxx, a chain store that opened in 2020 in major Chinese cities, has increased to more than 200 in number across the country. Online shops selling such food are growing rapidly, too. On Taobao, around 2.1 million people buy near-expired food every year.

From a food safety standpoint（观点）, which may concern many consumers, experts believe that such products won't do any harm. "Near-expired food is safe and buying these products is a good practice to help prevent waste of resources, which should be encouraged," says Zhou Yu, a professor of food nutrition (营养) and safety at Anhui Agricultural University.

If you go to Beijing and Shanghai, you can see the same and the different points between them. In some ways they look the same, and in other ways they look different. They both have tall buildings and wide streets, though some buildings in Shanghai are taller than the ones in Beijing. They are both important in China. Beijing is the capital of China, there are more places of interest there, but Shanghai is the biggest city in China. Now they are becoming more and more important in China.