A fox once said to a cat, "I have a whole bag of tricks（诡计). I know   1 than a hundred different ways of  2away from my enemies--dogs." "That's great," said the cat. "As for(至于) me, I have only one trick, but it usually works. Will you please3  me some of yours?", "Well, if I am not busy some day, I'll teach you one or two easier ones. "

    Just at that moment they heard something  4. That was a dog. The cat climbed5  a tree quickly. "This is my only trick," she called down to the fox. "Which trick are you going to6  , Mr Fox?" The fox sat there. He used his head 7  one of his many good ways.

    The dog came nearer. The fox thought and  8  . At last he found a way to run. Running away was    9    best way.   But that was too late.   Before he started 10, the dog came to him. That was the end of the fox.

    One day, the students of Class 6 were reading in the classroom. Mrs. Brown came in and told the whole class that they would have to change a 1 in March. The naughtiest(调皮的) class in the grade could not 2 it. The pupils all disagreed with the decision, so they shouted when Mrs.

    Brown said it was because a new pupil would be3 the class. The class was in disorder. (杂乱地) "Why must we move to another classroom just because someone new is coming?". One of them asked 4 Mrs. Brown waited patiently before the class without saying anything. The students saw it and they became quiet. Mrs. Brown told them to be 5 to their new classmate and then she left.

    The following week, the class understood 6. The head teacher himself brought the new student to their class.7, Mr. White pushed the new student to the class because the student was disabled. Mr. White 8 the new student as Jeff and asked them to be friendly to him. He said that Jeff now was a 9 of the class and they should work together. He added," A house divided (分开) against itself cannot stand."10 could completely understand what Mr. White meant at first.

    Over time, they began to understand what their head teacher meant. Jeff was a 11 student and often lent a helping hand to students who did not understand 12 work. They felt very thankful to him. They took turns (轮流) to push him 13 they knew well that when someone did something for you, you 14 do something back in return (作为回报) .Their results 15 and their behavior (行为) became better. It was a special year Class 6 would never forget.

Astronauts would face dangers both getting to and surviving (生存) on Mars. Let's learn about surviving a trip to Mars.

What would it take to keep people safe and healthy on a trip to Mars? Scientists are already working on it, though the trip may be many years later.

Over the last 60 years, many spaceships have flown by orbited（沿轨道运行）and even landed on the Red Planet. However, machines cannot replace humans. That's why the United States, China and other countries want to send people to Mars. But surviving on this trip would not be easy.

A trip to Mars would be the farthest journey in human(人类) history. Mars is about 225 million kilometers away, so it would take astronauts at least 180 days to reach there. However, it only takes a few days to get to the Moon.

Space travel is dangerous. For one thing, staying in space for long periods makes the human body weak. Also, it puts pressure behind the eyes and causes eye problems. But gravity(重力) machines could help.

Then there's space radiation(辐射) to worry about. It is bad for astronauts when they have long journeys. Scientists are working out the issue. They have found that taking certain vitamins can help.

Astronauts will have to pack light to lift off from the earth. But they won't be able to get the things they need easily. Astronauts on the space station practice for this by growing lettuce and other food in space. Engineers are developing 3D printing techniques（技术）which can allow future Mars astronauts to build what they want.

Have you ever lived in a school dormitory (宿舍)? Some students think living at school is a piece of cake. Well, it's not as 1 as you might imagine.

Last year, my parents decided to let me live at school. I was 2 to hear this decision because I hadn't thought about it before. But I 3 this idea after they told me that they would be too busy to look after me for the following year.

However, when I first arrived, I got nervous about the strict 4 . We have to study from 7 a.m to10 p.m. every day. We are not allowed to play with cellphones or go back to the dormitory to take showers during this time. Also, I 5 one of my roommates. These things made me feel upset and homesick. I just wanted to go back home.

On weekends, I went back home. My mother comforted me, "Don't be afraid. Try to think about how to improve the 6 ." My mother's words cheered me up. None of my roommates had such problems. So I needed to solve them by myself.

The next week, I tried my best to calm myself down and focus on my work. And it did not seem too 7 . I talked with my roommates more 8 and made more friends. I realized the good or bad of things depends on 9 own attitudes (态度). I began to enjoy the dormitory life.

Every time I struggle (挣扎) with difficulties, I always think about this special 10 . It gives me the courage to overcome them. Perhaps I have grown up through this.

On a winter afternoon, my friends and I were throwing stones onto the roof of an old lady's house. The old lady was my customer(顾客) on the newspaper route. We just wanted to see how the stones rolled off the roof's edge (边缘). I found an exactly smooth rock and threw it out, but it 1 into a small window of the old lady's house. At the sound of broken glass, we knew we were in trouble. We ran home fast. I was so 2 about getting caught that first night. However, a few days later I started to feel guilty (内疚的) for her bad luck. She 3 greeted me with a smile when I gave her the newspaper, but I was no longer able to act comfortably. I made up my mind that I would save my newspaper delivery money, and in three weeks I had seven dollars. I put the money in an envelope with a 4 explaining that I was sorry for breaking her window and hope that the seven dollars would cover the cost for repairing it. I waited until it was 5 , and put the letter I didn't sign into her yard. The next day, I 6 the old lady her newspaper. She thanked me for my paper and gave me a bag of cookies she had made herself. While eating cookies, I felt an envelope and pulled it out of the bag. After opening it. Inside were the seven dollars and a short note saying, "I'm proud of you."

It is Saturday, but I go to school as usual. I go to play football. I am in our school team and we are going to play against another school next week. 

The practice starts at 10 a. m. We all arrive as early as we can so that we have time to warm up. We are training harder than usual because the other team beat (打败) us last year. This year we want to do better. 

It is more difficult to practise in winter because the days are short and the weather is cold, too. It gets dark earlier, so it is important not to be late for after- school practice. 

Our coach (教练) is happy because we are playing better as a team now. Last year we were sometimes careless when we passed the ball and we lost (输) to the other team in the final match. What a pity! This year we are training more carefully. That means we have a better chance of winning, 

The fan club has fewer people this year. We hope to play well so that we have more fans to watch the matches. It is good to have our fans around. They cheer us on loudly and we feel more confident to win the game.