When William Brown taught at Boston University, he once thought about the people that he hadn't thanked in his life. They taught him, encouraged (鼓励) him or cared a lot about him.

    Tina Johnson was a teacher. She once taught William geography, and William loved geography all his life. So he wrote a letter of thanks to her.

    He got the teacher's letter later. It began, “My dear Willie”. He was happy. Now over 50, he didn't think someone would called him “Willie”. Here is that letter.

    My dear Willie,

    I cannot tell you how much your letter meant to me. I am in my eighties, living alone in a small room and cooking my own meals. You will be interested to know that I taught school for 50 years and yours is the first letter of appreciation (感激) I ever got. It came on a cold morning and it made me feel very warm.

    ......

    William cried when he read the letter. She was one of the people that William hadn't thanked in his past. She helped him to believe in himself. He would never forget her.

    There are some people we should always remember, because they helped to shape our life. William Brown found a way to show his appreciation—he wrote them letters.

    Who are some of the people that you need to say thank you to in your past? It may be too late to say “Thanks”.

C

    Today is Children's Day. There is a show in the zoo. Many children are in the zoo. Look at the animals. They are so cute. The birds are flying and singing in the sky. The tigers are running. The pandas are climbing trees. They are good climbers. The kangaroos are jumping. Look at the mother elephant and the baby elephant. The mother elephant is eating bananas and the baby elephant is drinking water with its trunk. Look，what are those? They are two lions. They are playing with a ball. And the monkeys are swinging.

    If anyone can be called a scientific giant after Albert Einstein, that person must be Stephen Hawking. He was born in Oxford, England on Jan. 8th, 1942. What a pity On March 14th, 2018, the world-famous British scientist1in Cambridge, UK.

    After leaving high school Hawking went first to Oxford University 2he studied physics and then went to Cambridge University where he studied cosmology(宇宙学). As he himself admitted, he didn't work hard. And he did 3work. However, he always enjoyed thinking everything around him, especially the universe. Today, he is called the King of the Universe.

    It was at the age of 21 that Hawking first4something was wrong with him. He started to bump into some things. When he visited his family at Christmas time, his mother was so worried that she 5 him see a doctor. Hawking was sent to hospital for tests. Finally, the result came back. He6to have motor neuron disease(运动神经元病), an incurable illness which would make him unable to speak, breathe or move 7the help of a machine. Doctors said they had no ways to help him. He might die before 23.

    8, Hawking became very depressed. After a while, though, he began to see his life in a different way. As he later wrote, “After my illness was diagnosed(诊断), I was very9with life. There had not seemed to be anything worth doing. But shortly after I came out of hospital, I suddenly realized that there were a lot of worthwhile(值得做的) things I could do."Then Hawking got married and found a job at Cambridge University as a professor. We strongly believe that his story shows that 10, how had their situation is, should lose hope. “Life is not fair.” He once said, “You just have to do the best you can in your own situation.”