Years ago, there was an old man who loved his young son very much. And the old man had a lot of art collections, such as the works by Picasso, Van Gogh, Monet and many others.

As war broke out in their nation, the son became a soldier and left to serve his country. Only a few weeks later, the old man received a message that his son died in the war.

On Christmas morning, a soldier knocked on the door and said, “I am a friend of your son. He saved my life before he died. I am also an artist, and I want to give you this painting that I drew in the war.” It was a portrait (画像) of the man's son.

The old man told his neighbors it was the greatest gift he had ever received. The following spring, the old man became ill and passed away. According to the will of the old man, all of the art works would be sold at an auction (拍卖会)  on Christmas Day, the day he had received his greatest gift.

On Christmas Day the auction began with the portrait of the old man's son, The auctioneer (拍卖师) asked for an opening bid (竞价), but the room was silent. Finally, a friend of the old man said, “Will I take $10 for the painting? That's all I have.” The gavel (小木槌) fell.

The auctioneer looked at the audience and announced that the auction was over. He explained, “It is very easy. According to the will of the father, whoever takes the portrait of his son gets all his art collections.”

    One day, some tourists came to a hotel but there were only two rooms left. One was on the fourth floor and the other was on the seventh floor.

    "We Chinese like the number 8. 8 means we will get rich. We also like 9 because it means we can live long. But we don't like the number 4 because it sounds like 'death' in Chinese. I think if we sleep on the fourth floor, we may die?

    The Greeks said,"We want the room on the fourth floor." In Greece, 4 is a lucky number.

    The South Korean said, "We don't like number 4 or 13. 4 sounds like 'death', and 13 is an unlucky number in the west." The tourists from the west said, "Oh, we love number 7. There are seven days in the world as it says in the Bible(圣经).We don't like the number 13. It is an unlucky number. If we sleep on the 13th floor, oh…"

    "In Japan, 4 sounds like 'death', so we don't like it. And 6 is also not welcome. There isn't the fourth floor or the sixth floor in the tall buildings in our country. However, we like 7 very much", said the Japanese.

    At last, only the Greeks lived on the 4th floor, and the rest slept on the 7th floor.

    Mr. Brown was going away for a week. He said to his son," {#blank#}1{#/blank#} anyone asks for me, you can tell him that your father has {#blank#}2{#/blank#} out for doing something and will be back {#blank#}3{#/blank#} a week." He was afraid his son couldn't remember this, {#blank#}4{#/blank#} he wrote these words down on a piece of paper and give it to him.

    Four {#blank#}5{#/blank#} (day) passed, but no one came to see his father. The boy thought that there was no one to come and that the paper was of no {#blank#}6{#/blank#} (valuable) for him, so he put it on fire that evening.

The next afternoon, someone came and said, "Where is your father?" The boy looked {#blank#}7{#/blank#} (worry). He said to himself. "I {#blank#}8{#/blank#} (put) the paper on fire already." So he {#blank#}9{#/blank#} (shout), "No more." The man was so surprised that he said. "No more? I met your father last week! And tell me {#blank#}10{#/blank#} it happened! ""On fire yesterday evening." the boy said.

Every country has its own way of cooking.

Most people in the United States like fast food, but if you think that {#blank#}1{#/blank#}, you are wrong. It's true that most Americans eat fast food for their breakfast and lunch, but {#blank#}2{#/blank#}. Parents see the importance of teaching their children how to cook, and most Americans say that home-cooked meals are the best.

{#blank#}3{#/blank#}. For example, baking（烘焙) is the most popular way of cooking in America. Most American families have ovens and {#blank#}4{#/blank#}. In planning a big meal, they try to cook meat, a few vegetables, some bread and often some sweet food.

{#blank#}5{#/blank#}. There are many kinds of foods in different colors, so the meal is healthy and looks beautiful, too.

Having a blood y nose can make some people nervous, but in most cases, nosebleeds(流鼻血) are easy to stop and not so serious. Around three out of five people will have a bloodynose in their lifetime. Nosebleeds mostly happen among children from 2 to 10 years old and among adults aged 50 to 80.

◆What causes a bloody nose?

Most nosebleeds are caused by picking the nose and dry air. Blowing your nose too often when you have a cold can also lead to nosebleeds. All of these break the tiny vessels(血管) inside the nose, causing them to bleed. Causes of more serious nosebleeds include a head injury, a genetic disease, or, in some cases, a tumor.

◆How to stop a bloody nose right away?

You may know how to stop a blood y nose right away, but it's important to do it properly and safely.

Always sit up straight when your nose is bleeding, and never lie on your back. One of the biggest mistakes in first aid is that you should lean(倾斜) back with a bloody nose, but the best thing to do is leaning forward. The blood needs to go somewhere, and if the person leans back or lies down, it will most likely go down his throat, possibly causing choking(窒息). And try not to put something into your nose.

Pinching(捏住) the nose properly stops or slows the bleeding. Hold the nose for at least five minutes. Do not let go to check for bleeding until at least the first five minutes are up. If you can, keep pinching for longer.

After five minutes, see if the bleeding has stopped. If not, pinch again, but keep it up for 10 minutes this time. Remember: Don't let go to check for bleeding until the 10 minutes are up. If bleeding doesn't stop after that time, pinch it for another 10 minutes if necessary.

Remember that if you can't stop the nosebleed with these ways, see a doctor immediately.

◆What not to do after a bloody nose?

After a light nosebleed, do not lie down until 20 minutes later, but at least 30minutes or even an hour later after a bad nosebleed. Don't lift heavy things or pick your nose for a day. You should not blow your nose for at least two days.

Almost all of us have had a flag raising experience.Hold it，then raise it.It's so easy.But doing so on the moon can be really difficult. 

There is no air on the moon，which leads to the first problem with flag raising—there's no wind to keep the flag flying. 

In the earlier Chang'e missions，the national flag of China was painted on the surface of the moon landers and rovers（月球着陆器和月球车）.In the Chang'e-5 mission，a special flag display system was invented.Since the Chang'e-5 didn't carry an astronaut to the moon，the work had to be done by a robotic arm.Researchers worked hard to make the display system weigh only 1 kilogram. The material of the flag is also a big problem.Normal flags on the earth would be broken or even destroyed quickly on the moon because of the radiation from the sun and huge temperature differences during the day and night. 

It took the researchers more than a year to find the ideal material.It was developed by Professor Xu Weilin and his team from Wuhan Textile University.It could help the flag keep its color and shape in the environment on the surface of the moon. 

The scene of the five-star red flag against the dark sky on the surface of the moon was taken by a camera on the lander and then sent back to the earth.Every Chinese was amazed at the history-making moment（时刻）.At the same time，we should also know and remember the teams behind this great effort.