Different weather makes people feel different. It influences health, intelligence(智力) and feelings.

    In August, it is very hot and wet in the southern part of the United States. People there have heart trouble and other kinds of health problems during this month. In the Northeast and the Middle West, it is very hot at some times and very cold at other times. People in these states(州) have more heart trouble after the weather changes in February or March.

    The weather can also influence intelligence. For example, in a 1983 report by scientists, IQ(智商) of a group of students was very high when a very strong wind came, but after the strong wind, their IQ was 10% lower. The wind can help people have more intelligence. Very hot weather, on the other hand, can make it lower. Students in many schools of the United States often get worse on exams in the hot months of the year (July and August).

    Weather also has a strong influence on people's feelings. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel unhappy during cold weather. But fat people may have a hard time in hot summer. At about 18℃, people become stronger.

    Low air pressure(气压) may make people forgetful(健忘). People leave more bags on buses and in shops on low-pressure days. People feel best at a temperature of about 18℃.

    Are you feeling sad, tired, forgetful, or unhappy today? It may be the weather's problem.

    Mark and Betty are brother and sister. They love to play on the1. They think it's very2to play there. They go to the beach by3every weekend. They live far away from the beach, so their father usually4about two hours driving them there.

    Last Sunday their father was very5and couldn't send them to the beach. Mark and Betty6very bored at home. They thought they must solve (解决) the7quickly.

    Then Mark came up with an idea and said to his father, "I have a good8, Dad. We can live near the beach. Then Betty and I can go there every day, and you don't need to drive us there."

    His father looked at him up and down and smiled, "Sounds really good. But the houses near the beach are very9. I must work hard to buy a10. Then you can go to the beach every day."

Hello, I am Mary. I live in Chengdu. It's sunny and cool in my city now. I'm studying at home. My parents are shopping. What's the weather like in your city? And what are you doing?

When I was in school, I volunteered to work in a hospital for some time.

On one visit, I carefully entered a dark room to find an elderly man {#blank#}1{#/blank#} (lie) in bed. I firstly thought he was sleeping. When I moved {#blank#}2{#/blank#} (close), however, I realized he was very much awake. He wanted to communicate something; but I couldn't make sense of what he {#blank#}3{#/blank#} (say). 0He seemed quite weak, and I couldn't tell if he was in pain, or just frightened. I knew nothing about him, and I felt totally helpless. He clearly didn't want me {#blank#}4{#/blank#} (leave) him, but I felt so lost and uncomfortable that I had to leave the room after only a couple of {#blank#}5{#/blank#} (minute).

The next time I was at {#blank#}6{#/blank#} hospital and saw him again, I was certain he didn't remember me. But he {#blank#}7{#/blank#} (immediate) said, "I remember you. , You gave me hope in my darkest hour that evening!" I was so {#blank#}8{#/blank#}(amaze) that I didn't know how to answer.

In the short moment of my staying there, I did nothing at all. {#blank#}9{#/blank#} surprisingly he found in me something he needed, just because I was there.

I have thought about this thing often over the past years. {#blank#}10{#/blank#} makes me want to offer whatever kindness I can to others, and I try to make it out and appreciate (赞赏) it.

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.