This is Maddy's family. They are monsters. Her brother likes to ride bikes. But the bike is small for him. Her little sister likes to sit and cry. Her father and mother are workers. Her aunt and uncle live beside her house. They like to go for a walk. They have fun. Maddy's family likes to have dinner in restaurants. They like to watch a film at the cinema. They are a big happy family.

根据短文内容完成下列句子。

    Christmas is on December 25th. It's time for the family to get together and celebrate. On Christmas, people usually decorate a Christmas tree in their houses. They also sing carols and give presents.

    On Christmas Eve, children put stockings out for Santa Claus. On Christmas Day, children open the stockings and presents. Later, families eat Christmas dinner together.

    Many families also go to church on Christmas to remember Jesus' birthday. Jesus was born on December 25th. Wise men visited Jesus and gave him presents.

    Little Justin was born in the river. It is spring . He is small and black . He looks around. He can not find his mum .

Justin :Mum , where are you ?

    Soon he has a round head and a long tail . He meets a fish in the river . She also has a round head and a long tail .

Justin :Mum ?

Fish :No . I'm not your mum . Your mum has four legs . She's green and she has no tail.

    Later, Little Justin has four legs . He is green . He meets a turtle .

Justin :Are you my mum ?

Turtle :No, I'm not your mum . Your mum has a big mouth . She can catch flies .

    I'm Jack. I'm from Canada. But now I'm studying in China.  I'm going to do many things in the winter holiday. First, I'm going to do my homework. Then I'm going to take a trip. I'm going to Harbin. There is snow everywhere. I can ski. My parents are going with me. We are going to take a plane. We're going to have a nice trip.

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."

    It is March 12th. It's Tree Planting Day. There are many people on the hills. They're planting trees. People plant many trees today. Plants are important to us. They can make food from the air, water and sunlight. But animals and people can't do so. Animals and people can get food from plants. Without plants, life will not go on, Plants make the air clean, they can keep water from flowing away(流失). They can stop wind from blowing up sand and earth. But in some places people are cutting down too many trees. This brings floods(洪水) and sandstorm(沙暴). Now more and more people know that plants are important. They will plant more trees and grow more plants. They will try to protect the trees.