A smuggler(走私犯) drove to the border. When a soldier looked in the truck， he was surprised to find six big bags.

    “What's in them?” the soldier asked.

    “Dirt，” the smuggler answered.

    “Take them out，” the soldier said. “I want to check them.”

    The smuggler opened the bags， and sure enough， each one of them was filled with dirt. So the soldier let him go.

    A week later， the smuggler came back， and once again， the soldier looked in the truck.

    “What's in the bags this time?” he asked.

    “Dirt， more dirt，” said the smuggler.

    Not believing him， the soldier checked the bags and， once again， he found nothing but dirt.

    The same thing happened every week for six months， and the soldier finally became so frustrated(沮丧的) that he left and worked as a waiter in a restaurant. Then one night， the smuggler went to the restaurant and had a drink. The waiter saw him and said， “Listen! Drinks are free tonight if you tell me what you were smuggling all that time.”

    Slowly， the smuggler got close to the waiter and said， “Trucks.”

    In a town there lived a little, beautiful and smart girl. Her name was Rose. Everyone in the town liked her. She was very brave, but she was scared of the doctor. One day, one of her teeth was moving. Her mom saw it. She said, "One of your teeth is moving, and you need to visit Doctor Tim."

    Rose said, "No! I'm not going to the doctor." Mom said, "Don't worry. It's not so wobbly(摆动的) now, we needn't go to the doctor at once." That made Rose feel better.

    After five weeks, Rose forgot about her tooth but her mom didn't. She checked her tooth again and it was more wobbly, so she said, "It's time to see the doctor."

    Rose was scared but she had to do what her mom told her, so they went to see Doctor Tim.

    They had to wait in the waiting room.

    When it was her turn, her heart was beating very fast. She went into Doctor Tim's room. He was smiling. She sat on the chair.

    Doctor Tim said," Close your eyes."

    Rose closed her eyes, but just before Doctor Tim started, tears started coming down from her eyes. When she opened her eyes, she saw Doctor Tim holding her tooth, smiling.

    Rose smiled. Then Doctor Tim gave her a teddy bear. From that time Rose wasn't scared of doctors anymore.

On a winter morning, a little boy of 10 years old or so went to a phone supermarket to make a telephone call. Clearly, he changed his tone (腔调) of voice while speaking over the phone. When all this was happening, the phone supermarket owner watched and listened with great interest to the conversation that followed:

"Madam, I am a poor boy. Can you give me a job cutting grass on your lawn (草坪)?" the little boy asked.

"Sorry, I already have someone to cut my lawn," the woman at the other end of the phone line answered.

"Madam, I will cut your lawn for half the price of the person who cuts your lawn now."

"The person who is now cutting my lawn satisfies me a lot. He is doing a good job."

"Madam, I'll even sweep your curb (清扫路边), so on Sunday you will have the prettiest lawn in all of Palm beach, Florida."

"No, thank you."

Instead of getting angry, the little boy smiled and put back the receiver (话筒) gently. The supermarket owner, who was listening to the conversation, walked over to the boy and said, "Soon, I like your manner and I would like to offer you a job."

"No, thanks. But I will remember your offer."

"But you were asking for a job so sincerely and seriously when you were talking to the lady over the phone."

"No sir, I was just checking how well or badly I've done the job I already have. I am the one who is working for that lady I was talking to!" the little boy said.

Do you like your head teacher(班主任)? Is your head teacher a man or a woman?

 My head teacher is man. His name is Tony. To be honest (老实说), he doesn't look nice. He is about thirty years old. He is very short. In my class, many of us are taller(更高) than(比) him. He has a big head, a round face and small brown eyes. His hair is short and blond. He is often in a black and white shirt. He looks like a panda. We all call him Big Panda. But all the students like him very much. He is so kind to us. He is very patient (有耐心). When we have problems, he will help us kindly. Our head teacher teaches us English. He can speak It very well. He often sings a nice English song. In our eyes, he looks very cool in class. So we all like English very much.

Enjoying the beauty of the sky at night is a difficult thing for people in cities since light pollution destroys everything. 1 , photos taken by astrophotographers (天文摄影师) offer people chances 2 the beautiful stars. 

Zhang Jingyi, 27, is 3 space lover and full - time astrophotographer. When Zhang was asked 4 she chose this career, she answered, "Because we all dream of living on a planet far from us. Doesn't it sound 5 ?"

With the fast development of China's space science, Zhang started to record rocket launching moments. "I carefully follow the development of the Tiangong space station with one of my favourite 6 . Every launch 7 me a strong sense of achievement. " she said. And then she added, "Some photographers 8 sell their work-some photos even reach six digits (六位数), but I believe that my photos are priceless and cannot 9 . " As a famous user on Sina Weibo with 10 followers, Zhang also films videos to give her audience a much 11 impression on her works, so that she can have more followers. 

In Zhang's opinion, astrophotographers need to be faithful to their careers. They should always work hard, or they will feel ashamed 12 themselves. For example, when taking photos of the stars, they have to do that on the cold highlands at night. "These difficulties are nothing if you 13 love what you do, " Zhang said. 14 experience is also important. "There isn't a detailed guidebook for creating art, " Zhang said. "You have to learn from 15 own works. Then you can add personal thoughts into them and see them improving. "

Do you know cosmic radiation(宇宙辐射)? Have you ever seen the auroras ( 极 光 ) in the sky? Cosmic radiation creates these pretty lights in the North and South Pole areas. It seems that cosmic radiation is a beautiful gift from space. But for some people, it can be dangerous.

A 53-year-old flight attendant(空中乘务员) in South Korea, who spent about 1, 022 hours flying each year, passed away due to cancer. His death was thought to be connected to great exposure (暴露) to cosmic radiation. During his lifetime, nearly half of his flights crossed the areas in and around the North Pole, where cosmic radiation is very strong.

Cosmic radiation from space is hitting Earth nonstop, coming from both the sun and other stars in the sky.

____ . Earth's magnetic field (磁场) and atmosphere (大气层) protect us from most cosmic radiation. The magnetic field is the strongest near the equator and the weakest at the poles. People living at higher latitudes (纬度), like in Heilongjiang province, are exposed to a bit more cosmic radiation than those living at lower latitudes, like in Hainan province. Also, when you go higher in an airplane, the thin atmosphere increases exposure to cosmic radiation.

Cosmic radiation can create health risks. However, what makes cosmic radiation dangerous also makes it useful. The high speed and energy of cosmic radiation have provided wonderful ideas for treating some cancer. Scientists can now produce man-made radiation similar to cosmic radiation. Compared to the present ways of treating cancer, it can work better with less harm to healthy parts of the body around them.