I used to live in my own room alone. But one day it all changed when my brother Mike asked to share my 1 At first， my parents said "No." to him， but at last my mother agreed. I cried and asked my parents not to do this， 2 it didn't work.

    As soon as Mike entered my room， it began to become 3. To my anger， he often left his unwashed clothes and toys everywhere!

    One evening， I was doing some 4 on my computer while Mike was listening to music.  5 ， I left my seat to get some water. A big surprise was waiting for me when I 6. He was using my computer to play games. I had forgotten to save the homework. Sadly， he closed my program saving it.7. All I had done had disappeared! I 8 him. He cried a lot as my mother came and beat him. My mother also asked him to leave room at once.

Then I did my homework 9 . At 10：00pm， I finished it. When I was going to turn off the 10 I saw the photo of my 11 that he had put on my table. I looked at his lovely face and remembered how 12 he was when my mom beat him. I really felt 13 . I went to see what he was doing. I found he was 14 in my parents bed. I kissed his face. He woke up， got up and said， "I'm sorry. I won't bring you any more trouble."

I was so moved and said， "From now on， my room is not only mine. It is 15!" That very night， Mike and I shared not only the room， but the bed.

    I believe that we can have an important effect on anyone we meet. The right words at just the right time could change someone's life. When I was three years old, my parents discovered I was deaf. After asking many doctors and parents of other deaf children, they decided to put me in a normal school.

    On my first day in the school, the other kids made fun of me because of my hearing aid. And then I saw myself as an ugly kid.

    Mrs. Jordan, my teacher changed all of that with a simple three-word phrase. One morning, she asked the class a question. I read her lips（嘴唇） and raised my hand right away. She called me. I took a deep breath and nervously answered Mrs. Jordan's question.

    I will never forget what happened next. Mrs. Jordan pointed directly at me. With a big smile she cried,

    "That's right, Stephen! "For the first time in my young life, my confidence soared（剧增）.At that moment, I decided that no matter how many difficulties I may face, I can overcome（克服） them. Just from those three simple words, my life changed from that moment.

    When I was three years old, my parents discovered I was deaf. After asking many doctors and parents of other deaf children, they decided to put me in a normal school.

    On my first day in the school, the other kids made fun of me because of my hearing aid. And then I saw myself as an ugly kid.

    Mrs. Jordan, my teacher changed all of that with a simple three-word phrase. One morning, she asked the class a question. I read her lips（嘴唇） and raised my hand right away. She called me. I took a deep breath and nervously answered Mrs. Jordan's question.

    I will never forget what happened next. Mrs. Jordan pointed directly at me. With a big smile she cried, "That's right, Stephen!" For the first time in my young life, my confidence soared（剧增）. At that moment, I decided that no matter how many difficulties I may face, I can overcome（克服） them. Just from those three simple words, my life changed from that moment.

Qian Xuesen was a pioneer in the development of China＇s aerospace（航空航天）science and technology. He was called the "father of China's aerospace" and "king of rockets". He was also one of the most famous {#blank#}1{#/blank#}, (scientist) in the world. 

Qian was born in Shanghai {#blank#}2{#/blank#}11 December 1911. After graduating from Shanghai Jiao Tong University, he went to America for {#blank#}3{#/blank#}(far) study. After this, he spent many years {#blank#}4{#/blank#}teach) and doing research work at universities in the USA. And he made excellent achievements in America. {#blank#}5{#/blank#}, his heart was always with his motherland. In 1955, he finally returned to China with his family. 

After returning to China, Qian led his team to overcome a series of difficulties and achieved many historic achievements. Qian worked with{#blank#}6{#/blank#}(thousand) of other scientists on China's "two bombs，one star＂ nuclear program（"两弹一星"核项目）. They created the atom bomb（原子弹）and later the hydrogen bomb（氢弹）{#blank#}7{#/blank#}（success）. They managed to complete this project in the fastest time in history. 

Qian devoted{#blank#}8{#/blank#}(he) whole life to China's aerospace industry. He wanted to use his knowledge {#blank#}9{#/blank#}(build) a stronger China. He often says that science {#blank#}10{#/blank#}(have) no boundaries（边界），but scientists have their motherlands. 

Enjoying the beauty of the sky at night is a difficult thing for people in cities since light pollution destroys everything. 1 , photos taken by astrophotographers (天文摄影师) offer people chances 2 the beautiful stars. 

Zhang Jingyi, 27, is 3 space lover and full - time astrophotographer. When Zhang was asked 4 she chose this career, she answered, "Because we all dream of living on a planet far from us. Doesn't it sound 5 ?"

With the fast development of China's space science, Zhang started to record rocket launching moments. "I carefully follow the development of the Tiangong space station with one of my favourite 6 . Every launch 7 me a strong sense of achievement. " she said. And then she added, "Some photographers 8 sell their work-some photos even reach six digits (六位数), but I believe that my photos are priceless and cannot 9 . " As a famous user on Sina Weibo with 10 followers, Zhang also films videos to give her audience a much 11 impression on her works, so that she can have more followers. 

In Zhang's opinion, astrophotographers need to be faithful to their careers. They should always work hard, or they will feel ashamed 12 themselves. For example, when taking photos of the stars, they have to do that on the cold highlands at night. "These difficulties are nothing if you 13 love what you do, " Zhang said. 14 experience is also important. "There isn't a detailed guidebook for creating art, " Zhang said. "You have to learn from 15 own works. Then you can add personal thoughts into them and see them improving. "