In the dining room stood a large grandfather clock. Meals in that dining room were a time for four generations to become one. Always that clock stood like an old family friend, watching over the laughter and gentle joking.

    As a child, I was amazed at how at different times of the day, that clock would chime(鸣响). I found the clock comforting. Year after year, the clock chimed, a part of my memories, a part of my heart.

    Even more wonderful to me was that my grandfather wound(上发条)that clock with a special key each day, which kept the clock chiming. I remember watching as my grandfather put into the key and wound not too much, never overwind, nor too little. He never let that clock wind down and stop. When we grandkids got a little older, he showed us how to open the door. After my beloved grandfather died, it was several days after the funeral(葬礼)before I remembered the clock！

    Tears flowed freely when I walked into the dining room. The clock stood lonely quiet. Without my grandfather's special touch, I couldn't stand to look at it.

    Years later, my grandmother gave me the clock and the key. The old house was quiet. No laughter and gentle joking over the dinner table, no chiming of the clock-all was still(寂静的). I took the key in my shaking hand and opened the clock door. All of a sudden, I was a child again, watching my grandfather looking at me, at the secret of the clock's magic, at the key that held so much power. Slowly, I put into the key and wound the clock. The dining room and my heart were filled with life and chimes. In the movement of the hands of the clock, my grandfather lived again.

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. 

参考词汇： play basketball 打篮球： interesting 有趣； 

on the weekend 在周末； have milk喝牛奶

Myself

……

My name is Wang Lei, and I am a middle school student in Grade 8. I have a busy{#blank#}1{#/blank#} enjoyable life, filled with various activities .In my free time, I enjoy{#blank#}2{#/blank#} the guitar. I practice playing it every day, sometimes even for hours. It's one of my favorite{#blank#}3{#/blank#}. The sound of the guitar always brings me peace and relaxation.

To keep myself healthy, I regularly do{#blank#}4{#/blank#}. I go jogging in the park once a week, and I also play basketball with my friends{#blank#}5{#/blank#} a week. Exercise not only helps me{#blank#}6{#/blank#} in good shape but also makes me relaxed. I also care about my mental health a lot. The{#blank#}7{#/blank#} has become an indispensable( 不 可或缺的) part of my life. I use it to search for information, watch educational videos, and even communicate with my friends from other countries. However, I get to know the importance of balancing my {#blank#}8{#/blank#} and offline life, so I make sure not to spend too much time{#blank#}9{#/blank#} the Internet.

As a Grade 8 student, I know the value of a healthy diet. I try to eat{#blank#}10{#/blank#} . I believe that a balanced diet is important for my physical and mental health..