My 4-year-old son now enjoys posting letters. He has formed the 1 of drawing pictures, writing his name on them, and then  2 the artwork in an envelope. He then insists on 3 his handwork to the neighbors, and a mail box he 4 belongs to the elderly couple who live next door. To be 5, I didn't think much of it, but I had 6 to warn my neighbors of the drawings 7 appearing in their letterboxes—I just didn't have the 8 to do so, because I was a little busy recently.

    On Tuesday of last week, I was walking down to school to collect my son when I 9 Mary, my elderly neighbor, 10 at her mail box. She said, “Jodie, is it your little son that has been posting items in my letterbox to me?” I was at once 11, “Oh yes, Mary, it is. I'm sorry. I meant to tell you…” She cut me off, “Jodie, I just love his mail. I've 12 every item he has sent. You don't know how much 13 the letters has made my day. I just love them.” While I was walking down to school after our 14, many thoughts came to me. Mary doesn't have a lot to fill her days, 15 she was a mother to a number of children herself who receives fairly regular visitors. The small 16 of getting some mail—pictures drawn by the hand of a young child—has brought 17 to her days, just as my visit to my grandparents does.

    I have decided that my son should 18 this practice. He should also start sending some items to his grandparents in Perth as well. It will most 19 make their day.

    It's doing the little, simple things that can often make a big 20 in someone's life.

    It just seems right that homelessness is everywhere. But to a nine-year-old girl named Hailey Ford, she believes everyone should have a place to1 .

    She got the idea after 2a homeless man holding a piece of paper that said：“Hungry& Homeless” while out shopping with her mother. They gave the man a 3, but Hailey began thinking about how she could do 4 and continue providing food to the people in 5. Later she set up Hailey's Harvest, a garden with its own6. She grows fruits and vegetables, and 7her progress online.

    Harley soon realized that food was not 8.The inspiration behind the garden led Hailey to work on building mobile 9for the homeless in her community. In an effort to help, her mom Miranda10to apply for a grant.11 , many companies12 donate useful items to this amazing cause. Each environmentally friendly small home is13with a shingled roof, drywalls, wood siding, vinyl flooring, window curtains, a solar-powered lamp and most importantly, a14 on the front door.

    Hailey receive no 15for her hard work. The homeless, her mom said, are people she 16as her friends. It's that17, in part, that keeps her going and Miranda's selflessness comes from a place which seems 18 to most but seems completely natural to them. Though Hailey admits she gets19sometimes, she will continue her work because 20 can be better to change the world.

When I was a young man I had much ego (自负). I thought I 1 everything. I looked forward to fame and success. I can even remember once in college2 telling one of my friends: “If only everyone listened to me, then they would all be happy.” I 3 left school, ready to take on the world. Little did I know the world was about to take on me.

    In the 4following college, instead of success, I found struggles. I had 5 in finding work. My jobs were either temporary or were 6 badly. When my wife and I had children, we were 7 to learn that both of our sons had Autism (自闭症) and would need to be 8 for the rest of their lives. I had no 9why this had happened to us.

    In time, however, I began to 10. My ego was decreasing fast. Instead of success, I found my 11 in moments of love. Playing and 12 with my sons brought me so much happiness. My boys 13me more about peace, patience, joy and love than I could have ever learned on my own. I began to share the 14I learned through my writings and my life. I finally realized that my 15 in this world had nothing to do with fame or success.16 it had everything to do with allowing love and light into my life and 17 it with everyone I could.

    You may not be happy 100% of the time18 can be in this world. Yet, you will find a joy no earthly (世俗的)19 could ever give. Put all of your moments, days, and years to good use then20 them with love.

    Chinese volunteers have completed a one-year test living in a simulated（模拟的）space lab in Beijing. The total length of the test, which started on May 10th last year, 1 370 days, thus setting a new record for the 2 stay in a simulated space lab.

    The space lab, called the Yuegong-1, or Lunar Palace 1, measures around 150 square meters. It 3 four sleeping rooms, a bathroom, a waste-treatment room and a room for raising animals. The Yuegong-1 provides everything humans need to survive in an environment 4 to that of a space station in outer space. Oxygen, water and food are 5 within it.

    A total of eight 6, all of whom are students at Beihang University, took turns 7 in the space lab. They were divided into 8 groups. On May 10, 2017, two men and two women 9 the Yuegong-1 for an initial （最初的）stay of 60 days. On July 9, they were 10 by another group of four, who stayed 200 days. The second group of students 11 on January 26, 2018, and the initial group12 and spent 110 days inside it.

    13, the volunteers were expected to stay in the Yuegong-1 for 365 days. But the project ended up 14370 days —from May 10 last year until May 15. The 15 five days were designed as a way to simulate a（n）16, in which the spaceship might experience a 17 in returning to earth.

    The goal of the project “Yuegong 365” is to 18 the limits of humans' ability to live in a 19 ecosystem for China's manned moon landing ambition. The success of the project means that China goes one step closer to putting 20 on the moon.

    It was 12:45 p.m. on January 2, 2007. Fifty-year-old Wesley Autrey was 1 the train at a subway station in New York. His two daughters, aged four and six, were with him.

    2, a sick man fell on the platform (站台). The man, 20-year-old Cameron Hollopeter, got up, but then 3 again — this time, onto the track between the two rails. A 4 was coming into the station. It was a(n) 5 moment. But Mr. Autrey wasn't afraid. He 6the man, and he looked at the 7 that the man was in. It was about half a meter deep. And he8, “The train is going to travel over this man. 9 he tries to get up, the train will 10him. But if he lies on the ground and doesn't 11, he'll be OK.” So he knew he had to 12. And there was no time to think carefully.

    He 13. Mr. Autrey lay on top of Mr. Hollopeter and kept him down on the ground. The train driver 14 them. He was afraid, but he couldn't 15 in time. Five subway cars traveled over the two men before the train stopped.

    The people on the platform were 16. When Mr. Autrey heard them screaming (尖叫), he shouted, “We're OK down here, but I have two daughters up there. Let them 17 their father's OK.” People on the platform clapped and 18. They were amazed at Mr. Autrey's 19. Subway workers helped the two men out. They had no serious injuries.

    Mr. Autrey said, “I didn't do anything special. I just saw someone who needed 20. I did what I thought was right.”

    When 10 girls from Gardiner High School in Montana received a sum of money to develop an invention to solve a real-world problem, they decided to create a solar-powered shelter to help the homeless.

For over a year, the girls have been using all their free time to complete the 1.

    “They have this amazing internal(内心的) 2 that I've never seen in any individual,” Violet Mardiro, a teacher at Gardiner High who is 3 with the team on the project, told The Huffington Post. “I thought 4 that maybe some of them would give up, say 'I didn't 5 this much work,' but they haven't. They're just working hard and they're not giving up and they're super 6.”

    Living in a low-income community, the girls have seen the 7 of homelessness first-hand. Many of them are from immigrant families and hoped the 8, which is powered by rechargeable solar panels(电子板), would help the 9.

    Seventeen-year-old Maggie Mejia told the Huffington Post that 10 she had no previous 11 experience, the girls figured out as a team how to 12 the shelter using how-to videos and books that taught them how to code. But the most important 13 she's learned during the project isn't technical.

    "I've learned a lot about 14 others, working for the community and being selfless and showing a better world to other people and 15 someone else's life," she said. The project was carried out with DIY Girls, a nonprofit that helps fund STEM – science, technology, engineering and math – projects for 16.

Mardirosian said all the participating students have 17 their interest in STEM through this project.

    “Many of them didn't think about engineering before. They thought maybe they're not 18 out to be an engineer. But working together, now they 19 their skill – whether a writing skill or a drawing skill or a speaking skill, they're all 20 in this field. Everyone has found their importance in this picture,” she said.