People already know a lot about animals. However, there are still some things about animals that may surprise you. Here are {#blank#}1{#/blank#}about animals you probably didn't know.

    Cows do have best friends and feel stressed when they are separated. Scientists have found that cows are very social animals and that a cow always {#blank#}2{#/blank#}other cows. When a cow is with its friends, it feels relaxed, compared with when it is alone.

    During a breeding season, a male penguin will offer a small stone to a female penguin as a gift. If she takes it, they will become partners. When the female penguin lays an egg, she and her partner may carry it {#blank#}3{#/blank#}, because some penguins don't build nests.

    Crocodiles (鳄鱼) swallow (吞) stones. Crocodiles always swallow their food instead of eating it like other animals. They swallow stones which break the food into very small pieces in their stomachs. These stones may stay in their stomachs {#blank#}4{#/blank#}.

    Elephants use plants to treat pain or other illnesses. Scientists once found a pregnant (怀孕的) elephant in Africa who ate a kind of plant which was not part of her normal food. Four days later, she {#blank#}5{#/blank#}a baby elephant. The same plant was used by the local pregnant women.

    It's five o'clock in the afternoon. School1and the students from Class 3 are going to Grandma Liang's house. Grandma Liang has no2or daughters. So the children often go to help3do some housework.

    Now the children are at Grandma Liang's4. Grandma Liang is very5to see them. Look! Lily is6with Grandma Liang in the living room. Betty is cleaning the7. Jane is washing clothes outside the room.8is Ann? Oh, she is in the kitchen. She is making9for Grandma Liang, Jim is next to Ann. He is10her.

    Smiling is the best way of making friends.

    When I was thirteen 1 old, my father found a job in the city. So my family moved there. I also came to a/an2school near where we live. My old school was far away. At first, I did not know anyone in my class. I was very lonely 3I was afraid to make friends with my classmates. I 4talk to anyone about my problem, and I didn't want my parents to 5me.

    Then one day, something good happened. I was sitting at my desk 6as usual while my classmates were talking happily with each other. At that moment,7 came into the classroom. I only knew he was my classmate but didn't know what his name was. He passed me and then turned back. He looked 8me and, without a word, smiled. Suddenly, I felt happy, lively and warm. That smile changed my school life. I started to talk with the other classmates and make friends. Day by day, I became 9to everyone in my class.

    10the smile, I have moved on to a new life. Now, I believe that the world is what you think it is. So smile at the world and it will smile back.

    Nearly 7,000 medical workers in the team supporting Central China's Hubei province left the capital, Wuhan, the hardest-hit city in the novel coronavirus outbreak in China, and went back to their hometowns on Tuesday, March 31, marking the largest scale departure (离开) of medics (医学工作者)since the first group left on March 17. The Civil Aviation Administration of China has organized 51 planes to support the departure.

    More than 42,000 medics from other parts of the country have joined the battle with local medics to fight against COVID-19. The support teams came from 21 provinces, cities and autonomous regions(自治区) and some of them worked on several battlefields during the past months. The support team from the First Hospital of China Medical University in Shenyang, was among those in the group. Sixty members were in charge of treating COVID-19 patients in 100 beds in the Union Hospital and treated 174 patients who have been seriously ill since they arrived on Feb 10.

    Wang Zhenning, the leader of its support team, expressed his thanks to the Wuhan people who offered great help to them. "I am proud to witness and play a role in history. We've been here, seen it happen and become better. Wuhan is our second hometown. We will forever care about the city and the people fighting with us." he said.

    Wuhan city government showed great thanks to all medics in a letter, expressing their gratefulness of the medics' efforts to save lives in the battle. "Thanks to your arrival, Wuhan welcomes today's peace and stability. We will always remember your kindness!" the letter said. In it, the city government also invited the medics to visit Wuhan in the future for sightseeing. Local people volunteered to line up and see medics off as the medics left for home after finishing their mission(使命) in Wuhan. Wuhan traffic police led the way for medics to the airport.

One Thursday afternoon, when I was in Grade 7, a new boy came into my classroom. He was short and thin. He walked up to the teacher and told her, very seriously, that he was new. His name was Christian. He sat down, took a look at me, and then looked away. I didn't think he was very nice and I was sure he wasn't the type I would like to become friends with.

During that year, I didn't talk to him much, but he smiled at me when our eyes met, always shyly. He never ate lunch with anybody, and he never talked to anybody but me.

But one day I joined those unkind kids who were making fun of him. We made fun of him though I thought it was wrong. 

"Haven't you got any friends? " a kid asked Christian, who had walked past us alone, head down.  "No, he hasn't got any friends. He's too stupid and shy. " I said. Then Christian looked up at me with the saddest dog eyes I had ever seen. I felt very sorry at that moment.

That night, I couldn't sleep because I couldn't get Christian's face out of my mind. In the weeks that followed, he never met my eyes in class and never smiled at me. It was really hard for me to decide to write him a note asking him to forgive（原谅）me. But I thought I should. 

The next day in class, I wrote him a note telling him how sorry I felt. About five minutes later, I turned and saw tears in his eyes. "You will never realize (意识到) what your apology（道歉）has meant to me, Jimmy, "he said to me. "I hope we can become friends. "

We had lunch together that noon and we had the best talk I had ever had. Over the years at high school, we were close friends.

When I think back, I realize that, if I had not apologized, I would never have known what a lovely person Christian was.

Apologies can really change your life, so never miss the chance to tell somebody you are sorry.

In a small Chinese town lived a poor young man named Liang.He loved 1 . One night, an old man with a long beard 2 Liang in a dream.He gave Liang a paintbrush.

"Use this magic paintbrush to 3 the poor," he said, "but don't use it to help people who are 4 and greedy (贪婪的), or the skill will 5 your fingers and you will never paint again."

When Liang woke up, he 6 the paintbrush on the table by his bed. He painted a butterfly and was 7 to see it fly off the page and out of the window.

Liang ran out of his little house and started painting things for people. He painted a buffalo (水牛) to help a farmer, food for 8 people and clothes for people who were cold.

A rich man, however, 9 about the paintbrush and asked Liang to paint some gold for him, 10 Liang refused.

"If you don't paint for me, I'll cut your fingers off," the rich man said."Then you will 11 paint again." So Liang painted an island of gold in the middle of a blue 12 .

" 13 will I get there?" asked the rich man.

Liang painted a 14 for the rich man, who got in it and went on his way toward the island.

But when the rich man was halfway there, Liang painted a hole in the side of the boat.The boat sank(沉)into the water and 15 ever saw him again.