Sam's dad told camping stories all through dinner. "Once I saw a snake outside my tent. Did I tell you about that?" Sam shook his head and tried not to look impatient. In fact, he really wanted to get out to the tent in the backyard (后院). His friend, Kent would go there.

    Finally, everyone finished dinner. Sam asked if he could go out. "I think you should help do the dishes first," said Mom. Sam washed all the dishes and helped clean the kitchen, and then he ran to the tent.

Kent was waiting for him. "Have you been waiting long?" asked Sam.

    "Not long,"said Kent. "Oh, well, we're here now. Let's get ready." "Ready for what?" asked Kent.

    "For anything that is going to happen," answered Sam. They played cards for some time in the tent. Then they read some books. After that, Sam told some of his dad's camping stories. When they got tired, they turned out the light ( 灯) and listened for noises in the dark. But they didn't hear any noises for a very long time ...

    Finally, Sam heard something at the tent flap ( 帐篷门帘). He felt very scared and kept his eyes closed.

    "Hey, get up, boys! Breakfast is ready." It was Sam's mom.

    Sam opened his eyes and looked at Kent. He was still sleeping. Sam sighed (叹息道), "We slept through the night, and nothing happened!"

There are lots of amazing places for people to imagine and expect in the world. But many people {#blank#}1{#/blank#} (encourage) to go into Cambridge.

I come from Cambridge, a beautiful city in the east of England. I have grown up there and experienced many {#blank#}2{#/blank#} (wonder) times. I have many good {#blank#}3{#/blank#} (memory) of it. In recent years, it develops {#blank#}4{#/blank#} (rapid) and has changed a lot. For this, more and more tourists take an interest in it.

Cambridge is 80 kilometers from London. London is in {#blank#}5{#/blank#}south of England. It has a population of about seven and a half million, so it is {#blank#}6{#/blank#} (big) and busier than Cambridge. It is about 2,000 years old, and it is famous {#blank#}7{#/blank#}Big Ben, Buckingham Palace and Tower Bridge. England {#blank#}8{#/blank#} (it) is part of an island. It owns rich tourism resources. Tourists like the mountain areas and beautiful lakes in the north, and the hills and pretty villages in the south. So it's really perfect for you {#blank#}9{#/blank#} (pay) a visit. It is never very hot in summer {#blank#}10{#/blank#}very cold in winter. So you can visit England any time of the year. Or it will be a pity in the rest of time.

A man was on a flying plane. Suddenly he heard a warning from the pilot (飞行员). The pilot 1people on the plane to fasten their seatbelts (系紧安全带).

The man 2around the plane and found that many of the people became worried. Later, the pilot said, "We are so 3that we are not able to serve the meal at this time. There are currents (气流) in front of us." And then the storm came. The plane shook a lot.

The man saw that nearly 4the people on the plane were afraid except a little girl. The storm meant 5to her. She just sat on her seat and read a book. Sometimes she closed her 6to have a rest, and then she would read again. When the terrible 7came, the child was very calm.

The man couldn't believe his eyes. So as soon as the plane finally 8its destination (目的地), the man went to the girl and asked her 9she wasn't afraid at all. The sweet child answered, "That's 10my dad is the pilot and he is taking me home."

Once upon a time, there was a little girl called Rose. She loved1 but she didn't have paintbrushes(画笔) or paper. She always painted pictures in the sand2 tree branches(树枝). One day, an old lady saw Rose and said, "Hi! Here's a paintbrush and some3 for you."

"Thank you!"Rose said. She felt so4 ."Hmm, what will I paint?" she thought. She5 and saw a duck in the river. "I know! I can paint a6 !" So she did. Suddenly, the duck flew off the paper and into the river."Wow!"she said."A magic paintbrush!"

Rose was a very 7 girl and she painted pictures for the people in her village. She painted cows for the 8 , pencils for the students and toys for all the children.

The king9 about the magic paintbrush and he sent a soldier(士兵) to find Rose. "Come with10 ," said the soldier."The king wants you to paint some money for him."

"But he's so11 ," said Rose. "I only paint to help poor people."But the soldier still took Rose to the king. "Paint me a tree with lots of12 on it," the greedy(贪婪的) king shouted.

Rose was brave and said, "No!"13 the king sent her to prison(监狱). But Rose painted a key to the door and a horse to help her run away. The king14 her with his soldiers.

She took out her paintbrush and 15 a big hole, and splat(啪嗒声)! The king and the soldiers fell into the hole.

Rose only used her magic paintbrush to help those people who truly needed her help.

David was a truck driver. Recently he was thought to be a great man.

Last Monday, he was driving along the road with his son and his friend. Suddenly he saw a car hit another truck (卡车) and catch fire. The accident was just in front of his truck. Without thinking, he stopped his truck, found a fire extinguish er (灭火器) and ran towards the broken car. But other car drivers still sat in their cars. David began to fight the fire. His action encouraged his friend. He also came and gave David a hand. Later, David's son and four other men came to help. Another five men pulled the car driver and her granddaughter, a three-year-old girl, out of the car successfully. They were all safe except that the driver's leg was hurt.

When people talked about David's brave action, David said, " I didn't think too much then. I just did what other people would do in that situation. When I first got out of the truck,I wished they wouldn't be dead. When I saw they were alive, it was really great!"

①As missing children get older，they become quite different from the faces in their last﹣known photographs，which makes finding the really difficult. Now AI（人工智能）can make it easier to match any found children to those old photos. 

②Police can use software（软件）to age photos of missing people，but it seems to work best in adults

③Unlike adults ，the faces of children change greatly as time goes by，and matching photos of found children to old images（画像）（数据库）of missing children is difficult. "Even with a recent face image of a child，it is quite hard for a human to recognize（辨认），who the child is from a large data set of child face images，" says Debayan Deb at Michigan State University. 

④Now Deb and his teammates have created an algorithm（算法）to work out the problem. They created a face﹣recognition algorithm on data sets，which have images of nearly 1

⑤AI learned to match recent photographs of children with images taken 2. 5 years earlier. The correct matching rate can be 80 percent. With one year between the two photographs，it was 90 percent correct at recognizing faces. This dropped to 73 percent after three years. The new AI might help to improve accuracy （准确性）of this kind of software

⑥Deb's next goal（目标 ）is to make the age gap wider. His team also hopes to develop an app to fight against the sale of children.