Long long ago, there was no paper in the world. People had to write characters(汉字) in bamboo slips or stones.Then there was a man named Cai Lun who was a Chinese man. He made people use all kinds of things to invent paper. From then on, people can use paper to write on. Paper is a great invention. We always remember the great inventor Cai Lun. Nowadays paper is very useful in our work, study and our life.It really means a lot to human beings

    Mr. Chen was puzzled（闲惑的）and a little suspicious（怀疑的）. He sat in the office and studied a letter apparently（看似）from Mrs. Wang, the mother of one of the pupils in his class. There was something about it which worried him.

    "I don't understand," he said to himself. He shook his head as he circled four mistakes in the letter. "Mrs. Wang is an educated woman. She wouldn't make mistakes like these even if she did write the letter in a hurry. "Mr. Chen took out his class register(名册)and said to himself, "Yesterday was Thursday. Let me see. Ah, yes. I thought so. David was absent on Thursday last week and the week before. Hm. Why is he so often absent on Thursdays? Was he really ill yesterday? Could it be a coincidence(巧合)?”

    Mr. Chen stared at the register as if the answers to his questions were hidden in it somewhere. Then he took out a copy of the timetable(课程表)for his class.

    "I wonder." he told to himself. "I wonder if his absence has anything to do with one of these lessons."

    Mr. Chen looked at the subjects for Thursday: Mathematics, English, P. E. He thought about P. E. He knew that the pupils had P. E. twice a week: once on Monday, when they usually played games on the school field, and once on Thursday, when they did exercises in the gym.

    Mr. Chen glanced round the office to find Mr. Long, the rather strict P. E. teacher, but he was not there.

    "I'd better have a chat with Long and David, "Mr. Chen thought.

The bell rang. "I can't do anything right now," Mr. Chen thought. "It's time to go to Class 2. I'll do it later on."

    Mr. Chen picked up his books and walked off to teach Class 2.

Later, on Friday, Mr. Chen spoke to Mr. Long, the P. E. teacher. Mr. Long agreed that it seemed strange for David to be absent so often on gym days. They thought about it for a while.

    "David is a good athlete(运动员)," Mr. Long finally said, "but he's afraid of heights. I was hard on him once because he wouldn't climb more than a couple of meters up the rope. Do you think that's why he's been absent recently?"

    "Yes, I think so," Mr. Chen said. "I'm going to talk to him this afternoon before he goes home."

    "Well, I've got a suggestion to make," said Mr. Long. "If he's scared of heights, he'd better come and see me after school. Quite a few people suffer from (遭受) vertigo. I'll be glad to help him."

    “That's very kind of you," said Mr. Chen. "I'll get him to come and see you on Monday or Tuesday."

    In ancient Greece, Socrates was a knowledgeable philosopher(哲学家). One day one person met him and said, "Do you know what I just heard about your friend?". "Hold on a minute," Socrates replied. "Before telling me anything I'd like you to pass a little test. It's called the Triple Filter Test(三重过滤测试). Before you talk to me about my friend, it might be a good idea to take a moment and filter what you're going to say. That's why I call it the Triple Filter Test. The first filter is truth. Have you made absolutely(完全地) sure that what you are about to tell me is true? ""No," the man said, "actually I just heard about it and…". "All right," said Socrates. "So you don't know whether it's true or not. Now let's try the second filter, the filter of Goodness. Is what you are about to tell me about my friend something good?" "No, on the contrary…". "So, "Socrates continued, "you want to tell me something bad about him, but you're not certain it's true. You may still pass the test though, because there's one filter left: the filter of Usefulness(有益性). Is what you want to tell me about my friend going to be useful to me?" "No, not really." "Well," said Socrates, "if what you want to tell me is neither true nor good nor even useful, why tell it to me?"

On May 15, 2023, the Activity of Choosing People Who Moved Liangshan（凉山） in 2022 was held in Xichang. Ten people  {#blank#}1{#/blank#}  the proud prize. Among them was Lou Se'er whose four children got into the famous universities in China. Two of them are studying in Tsinghua University. He was given a special prize by the government on October 31st, 2022. It's impossible for him to get such special prizes  {#blank#}2{#/blank#} the great effort.

Luo and his wife live in a small mountain village in Butuo. They have a common and hard life as most other  {#blank#}3{#/blank#} in their neighborhood. They have little education, but how can they bring up four excellent children? Luo told reporters about his "secrets of  {#blank#}4{#/blank#}  education." "I hope my children can get more education and have a better future." said Luo. "My wife and I faced lots of challenges and difficulties. We don't know  {#blank#}5{#/blank#} to read or write. We can hardly count."

They  {#blank#}6{#/blank#}  realized the importance of education for their children. They made up their minds  {#blank#}7{#/blank#}  them to good schools. They can't help their children with studying at home during weekends, summer and winter vacations. The children have to learn by  {#blank#}8{#/blank#}  and sometimes the elder brothers helped their younger brother and sister. They studied very hard and made great progress in examinations. "My all children are in good universities. In fact, there is no  {#blank#}9{#/blank#} . It's just a wholehearted decision, I together with my wife will support them all the time as long as they need. We think hard work plays a very  {#blank#}10{#/blank#} role towards success." added Luo.

Many people are touched by the story about the poor family—parents with little education and four  {#blank#}11{#/blank#}  children. They believe that the Luos' life must become better and better.

Most people choose to live in comfort after they retire ( 退休), but Wang Guilan is not one of them.As a marathon (马拉松)lover, the 70-year-old woman from Liaoning, China has completed over 100 marathons in the last 19 years. People call her Super Grannie".

Wang only started running at the age of 51, as a way to keep in shape, but soon realized she loved it. She ran her 1st marathon in 2004 and hasn' t stopped since. From 2005 to 2017 she completed the Beijing Marathon 13 times, and this year she set a new record, becoming the oldest person to ever complete the 168 -kilometer ultramarathon (超长距离马拉松) of Jiang Nan 100-Mile (а famous ultramarathon in China), in about 40.5 hours.

 "This lady is the same age as my grandmother. How can she run so fast? That's amazing," a young runner said after seeing Wang compete in Jiang Nan 100-Mile in April. This was Super Grannie' s 2nd time competing in the race.

So how does a 70-year-old stay in good-enough shape to complete a marathon that most people half her age couldn' t finish? According to Wang, she runs at least 20 kilometers six days a week from Monday to Saturday, and on Sunday she runs some more. She likes running in the mountains, but in winter, when the weather doesn't t permit, she runs on roads. On average ( 平均）, every year she runs for 7 months in the mountains and 5 months on the road.

Wang always believes that age is not a problem , and she plans to continue running marathons and enjoying her life for as long as she can.