Almost everyone has a dream job, and for Susan, it is being a whale （鲸） trainer at her city's aquarium（水族馆）. Last year, Susan had a chance（机会）. If Susan wanted the 1 , she had to take part in a competition. They need to show how 2 they could go down into the seven-metre-deep pool and how long they could stay there. The one who could reach the deepest and stay the longest underwater would get the job.
Everything went 3 at first. But then, as Susan went down about five metres under the icy water, her legs stopped 4 . The cold water caused a huge pain （疼痛）in her legs. She couldn't swim back to the surface（表面）. She was in great fear and couldn't think. This only made her 5 farther into the pool. Just as Susan 6 hope, she suddenly felt herself being pushed to the surface.
It was Mila, a whale in the pool. She noticed Susan's 7 , held her leg in her mouth and pushed Susan up to the surface. Susan was 8 , thanks to Mila's quick action. The aquarium spokesperson said Susan was really 9 , because Mila had realized Susan needed help before any of the working group did, which saved valuable time.
Whales are social animals — 10 live and play together. In the wild, they show great interest in humans and often swim close to boats and divers.
A man made a nice talking machine（机器）. It could weigh people's weight（称体重）. The man wanted to test the machine before he could make a lot of them for sale.
The first one using the machine is a Japanese woman. She stands on the machine. "Good morning, Madam," it said in Japanese, "Your weight is 62 kilograms. That's three kilograms more. If you eat more fruit and vegetables, you'll soon be all right. Please have a nice day."
The second one to use the machine is a Chinese girl. She stands on the machine. "Good morning, Miss," the machine said in Chinese. "Your weight is 45 kilograms. It's all right for your age and height. Keep eating what you eat every day. Please have a nice day."
The third one is an American woman. She thinks for a long time to stand on the machine. The machine speaks quickly in English, "One of you get off!"
One day, Tom's teacher, Miss Gao, held a class meeting. "There will be a flag day（公益事业募捐日） next Saturday. Does anyone want to join this meaningful activity?" asked Miss Gao. Tom was interested in raising money for homeless children, but he was not brave enough to talk to the strangers（陌生人）, so he kept quiet in his seat.
"Tom, you haven't sold flags before," said Miss Gao suddenly. "Would you like to have a try?" Tom was hesitant（犹豫）, but he finally nodded.
On the flag day, Tom and Angela sold flags in a busy street. "Excuse me. Could y-o-u pl-ea-se buy... ?" said Angela softly to the first person she met. The man smiled and put a five-dollar coin into Angela's collection bag. Then she said thanks and put a flag on his shoulder. "I did it!" said Angela happily. "It's your turn now."
Feeling nervous, Tom began to shake. Soon, he saw a young lady walking towards him. The lady was smiling and holding a few coins in her hand. She asked, "Are you selling flags for Fund for the Homeless Children?" Tom's face became red and said yes. Then the lady made the donation（捐赠） and Tom gave her a flag. "You made it!" Angela laughed.
In the following hours, Angela and Tom sold flags quickly and bravely. At last, their collection bags were so heavy that they had to hold them with both arms. They felt very proud.
Yun Siqi from Beijing is a 19-year-old young pianist. He started to learn the piano when he was four years old, and it has been his favorite hobby since then. Before that, he often heard his elder sister playing the violin and he loved the classical（古典的） music she played. "I wanted to beat her in something and I chose the piano," Yun said.
At 4, several minutes of practice a day was enough. As Yun grew up, at ages 7 and 8, he had to practice for four hours a day. The time kept going up after Yun was 12. Now, he needs to practice at least seven hours every day. He sleeps for only five to six hours a day, but he is still full of energy.
Yun never got tired of the piano. In fact, he had great fun playing it. "Music is my special luck, and it is a real enjoyment to be with it every day," he said.
Yu worked hard and soon he stood out. From 2013 to now, Yun sh one at different music festivals, concerts and competitions. Yun said successes or failures would not affect（影响） his understanding of music, or his plan for the future.
"If you lose, think carefully about it, and if you win, just work harder," the young pianist said. "I still need to practice more to become better, to bring out the beauty of classical music through the piano. It may take a lifetime."
Every school day, we use schoolbags to carry all of our things to school. They are a big part of our lives. But have you ever thought about the history of the schoolbag?
In the Han Dynasty, students used bamboo boxes to carry books to school. People consider the bamboo boxes to be the earliest schoolbags. They were usually two or three layers（层） in the box. Kids put different things like books, brushes, ink stones（砚） and paper in the boxes.
Hundreds of years later, people developed a new kind of schoolbag called the budai, or the "hip-pocket". The budai was lighter than the bamboo box. With the founding（成立） of the People's Republic of China, military rucksacks（军用帆布包） became popular. Many people carried them when they were in school.
A new style of schoolbag has appeared（出现） in recent years. Many of them have colorful designs（设计） on them, such as pictures of cartoons or pop stars. Some students pull wheeled bags with heavy textbooks and others carry backpacks.
Schoolbags are still changing. Can you imagine what future schoolbags will be like?
Many children don't like doing chores, because they think it's boring. Some children think they just need to learn their subjects well and there is no need for them to do chores.
First, doing chores can teach children certain skills. Washing clothes and doing dishes may seem boring, but knowing how to do them well will help children a lot. If children can successfully do the chores at home, they will live a better life.
Some chores like sweeping the floor and cleaning the room are a kind of physical exercise. Children should not study all the time. A health y life needs balance（平衡）.
Nowadays it's common for both parents to work. When they get home from work, they are often tired. So they don't have much time or energy to do chores. And children can also find great pleasure（快乐） in helping their parents.
A. But in fact, doing chores is good for children.
B. Parents often ask children to do chores at home.
C. Second, doing chores can help children keep healthy.
D. Children can't get some learning skills when they share chores with parents.
E. Last but not least, everyone in the family will be happy to share chores at home.
F. If children can help their parents with some simple housework, their parents will be happy.
G. Children can learn classification （分类） skills when they pick up their toys and put them away.
