Danny: Good morning, Jenny.

Jenny: Good morning, Danny.

Danny: Oh, Jenny , this is my sister Kate. She is a teacher.

Kate: Nice to meet you ,Jenny.

Jenny: Nice to meet you , too, Are those your students?

Kate: Yes , they are.

Jenny: And , Who is he?

Danny: He's my brother, Jack.

Jenny: Oh, I see. Well, have a good day!

Jenny\Kate: Thanks! You , too . Bye!

    Many years ago, people use a stick, a large piece of wood and dry leaves to make a fire. Today, wood, gas (煤气) and electricity (电) can all make a fire. I think wood is the most dangerous. And I like gas most because it's easy.

    People use fire in many ways. At home, people use fire to cook food and boil water. In factories, workers use fire to melt (熔化) metals (金属) to makes things of different shapes. Some workers use fire to make glass.

    Fire can help us to do many things, but sometimes fire is dangerous. Cigarettes and campfires can all start a fire in the countryside, in schools and at homes. We must be careful. We mustn't smoke in the countryside, and we mustn't cook without an adult (成年人). We mustn't play with matches. We mustn't play around a fire.

    Hello , I'm Lily . I'm from America . I live in New York . I know Beijing is very big and very famous . So I'm going to Beijing this winter holiday . I'm going to visit Tian'anmen Square and the Great Wall . I like Chinese food . I want to go to the Chinese restaurants . My parents are going there with me . We want to go by plane . I want you be my friend . Can you be my Chinese pen friend ?

Stephen Hawking

    Stephen Hawking was born in 1942 in England. When he was a child, he was very clever. He helped his teachers install (安装) computers.

    At the age of 21, Hawking got an illness. He could only "speak" using a computerized voice(电脑语音), but he did not give up(放弃). In 1988, Hawking wrote a famous book. It is A Brief History of Time: From the Big Bang to Black Holes(《时间简史：从大爆炸到黑洞》)． The book talks about the universe(宇宙). Where did it come from? How will it end? What does it look like? You can read the book to find out more.

    Hawking visited China three times. He had many fans in China.  Hawking told Chinese children to stay curious and confident (保持好奇和自信).

    On March 14th, 2018, the great scientist passed away(逝世) in the UK. He studied the universe in his whole life. He also wrote many famous science books. He said, "Remember to look up at the stars and not down at your feet."

    Our classroom is bright and clean. But it is not big. There are twenty-three desks and chairs in it. They are new. There's a big desk in front of the classroom. It's for our teachers. There are five pictures on the right wall. There's a map of the world and a map of China on the left wall.

    Near the window there's a bookshelf. There are many books on it. Our class-room is very nice. We have lessons here. We like our classroom.