We usually wear socks to keep our feet warm. But socks can have a message, too! Who says your socks     1     match? We celebrated Mismatched Socks Day at school last week.     2     Monday morning, everyone wore different socks on each foot and met at the school gate. It was a lot of fun,     3     why did we do it?

The idea of Mismatched Socks Day is that it’s not     4     to be special and unique. Kids can be proud of     5     differences. It takes place on the first day of Anti-Bullying Week each year. A bully is a person who     6     or scares other people. Older and stronger children     7     bully younger, weaker children, or children who are different. We want to stop bullying at our school. Everyone needs to feel happy and     8    . That’s why we celebrate Mismatched Socks Day.

Each year, a theme is     9     to help students to remember that it’s good to be different and all children are important. As the event has grown, more people join and take the     10     to help fight off bullying. Celebrating Mismatched Socks Day is not just fun. It makes a difference in the lives of young people all over the world.

How do you feel about onions? Some people think they smell bad. They make people “cry”.     1    . They have a festival just for onions. It is called the Zibelemarit, which means “Onion Market”.

As for the start of the festival, there is a story. In 1405, there was a big fire in Bern, Switzerland. The fire burned the city and many people died.     2    . The leaders of Bern wanted to thank them. They set up a market in their city so that the farmers from Freiburg could sell their onions every autumn. The Onion Market then started.

There are railways in Bern. Farmers used the railways to transport (运输) their onions.     3    . Visitors can also ride the train to get there.

During the Zibelemarit, people have a lot of fun things to do.     4    . And they can also buy onion artworks. People dress up like onions. There is also a confetti battle. Confetti is little bits of colorful paper. At around 4 p.m., people begin to throw confetti at each other. They play and laugh. The old city of Bern turns into a sea of color.

The Onion Market is popular and it has been going on for hundreds of years.     5    . It is held on the fourth Monday in November. People look forward to celebrating it. Visitors from all over the world go to Switzerland to celebrate onions!

3 . Dads work hard every day. Father’s Day is the time for us to say “Thank you” to our dads.

Many countries celebrate Father’s Day on the     1     (three) Sunday in June. Some countries celebrate Father’s Day on     2     (difference) days, and others at the same time as other     3     (holiday).

On this day, people visit and spend time with their dads. Dads don’t     4     (usual) like flowers, so people often give them other gifts, make some nice food for them or take them out to dinner. Many children give     5     (they) dads funny cards. When they open them, they will often laugh.

Father’s Day, like Mother’s Day, is the perfect time for us     6     (show) our love and thanks to our parents. Why not give your dad a surprise by     7     (say) “Thank you” on the coming Father’s Day?

We all use them every day. It would be hard to live without them. We are talking about toilets!

World Toilet Day is on November 19. Why do we celebrate it?

Toilets are a big thing in our lives. They take away our waste and keep our homes clean. Even today, 3.6 billion people in the world still do not have safe toilets, the United Nations said.

One gram (克) of human waste may have 10 million viruses (病毒) and 1 million bacteria (细菌). These make us sick or even kill us. That’s why we should care so much about toilets.

How many times do you use a toilet each day? Around seven times, said scientists. You will spend about three years of your life on the toilet!

Many people use this time to do other things. Some like to read while in the bathroom and even put bookshelves (书架) in there. Some like to talk with friends or family on their phones. Others like to study or work. There were many famous “bathroom artists” in history. The great Song Dynasty writer Ouyang Xiu wrote many works on the toilet.

9 . World Book Day falls ________ April 23th every year. It was ________ by the UNESCO (联合国教科文组织) in 1955 to encourage people, especially teenagers, to discover the pleasure of reading. Many countries ________ World Book Day. On that day in the UK, millions of students can buy books of special ________, much lower than usual in any bookstore. It has been done since 1998. ________ do people like reading? Firstly, reading helps us become more knowledgeable and more intelligent (勤奋的). ________, reading helps us to follow the latest developments of science and technology. Besides, reading gives us ________ about other cultures and places of the world. When we read, we may find many things that we don’t know well. We would have to think about them or do more reading to ________ out the answers. The more we read, the ________ we know. What’s more, reading is also one of the most important ways to learn a foreign language like English.

“Reading ________ a full man.” Books, magazines, newspapers can help us to know more about the outside world and perfect us. So it is necessary for us to form the habit of reading every day.

What would be the best day to celebrate the number pi? If you say March 14, you’re right!     1     Every year, math and science lovers come together on this day to celebrate Pi Day. In 2019, the UNESCO set the day as the International Day of Mathematics, which aims to celebrate the beauty and importance of math.

In China, Pi Day reminds us of the Chinese mathematician Zu Chongzhi (429-500 AD). His calculation (计 算) is between 3.1415926 and 3.1415927.     2     In the US, a physicist called Larry Shaw started the Pi Day celebration in 1988. During the first celebration event, people walked around a round space to help them know more about pi.

    3     Students in the US usually eat pie and throw pie at each other. Fukuoka High School in Japan celebrates Pi Day with pi memorization games. They try to remember as many digits (数字) of pi as they can. It shows their memory skills. In Germany, the celebration of Pi Day pays more attention to creativity.

    4     A student even built a 3-D building with Lego about pi. She used different colored blocks to show each digit of pi, such as yellow for the number 1, blue for 3 and red for 5.

    5     It also makes people enjoy math through all kinds of celebrations.