Dear Jenny,

    How are you? I am visiting my cousin Howard in Australia. It is hot in Hong Kong but it is cold in Australia in June. When it is summer in Hong Kong, it is winter in Australia. It is snowing heavily now. I like snow a lot and it is a white world outside. I will play with my cousin in the snow this afternoon. We want to make a snowman. I think it is very interesting!

    I like my cousin's house. It is big and there is a beautiful garden. We can play ball games there. My cousin's neighbors are friendly, but they cannot speak Chinese. I talk with them in English. See you next month.

Yours,

Tony

    Guitar Player Wanted

    Are you a lover of music? Can you play the guitar? Can you sing or dance? Welcome to our Sunshine Rock Band. Please call Peter at 5478－6598 or send an e－mail to sunshine@yahoo.com.

    Hot Club

    Do you like to play table tennis？Do you want to play it well? Mr. Wang is a good teacher. You can come here every Saturday afternoon from 2: 30 to 5: 30.

    Telephone number: 8665－7868.

    Address: Room 105，Xingxing Hotel.

    Swimmer Wanted

    Can you swim？Do you like children？Can you teach them to swim on Sundays？Come and join us. Call Jill at 8472－9999 for more information (信息)．

    Summer Job

    Do you like to talk with people? Do you like to write stories? Then come and work as a reporter. Please call Sally at 5561－8823.

Welcome to visit our great museum.You can take No.3 bus to get there.

Time:

9:30 am-—5: 30 pm, from Monday to Friday

9:30 am—8: 30 pm, on Saturday and Sunday

Note:

Here is the map of the museum. You can get it at the gate of the museum.

There is a dining hall on the left of the Hall. You can go there to have a rest.

Science Room is only open at the weekend.

Dear humans,

It's the first time I write to you, my Children. I sent you many messages in the past, but you didn't take them seriously. So I decide to write you a letter.

First, let me tell you more about our family. Dear humans, besides you, I have many other children. Some of them fly in the sky; some of them swim in the water; some live in ice-covered places; some run in the grasslands.

They might be very close to you, or even live in your house. But there are others that you may never have the chance to meet.

You bring them home to be your pets, friends and helpers. You put them in the zoos. You kill them for their meat and fur. And you even hunt them for fun. They bring you money and happiness, but they also bring you illness and death.

I hope you remember that wild animals are not your food, clothes or furniture. They are not killers, either. They are, in fact, your brothers and sisters. You should grow up together. I'm worried that one day you will be lonely if you keep killing them.

So, grow up, humans. Grow up to be more loving and caring. I hope you and all the wildlife can live happily in my arms.

Yours,

Mother Earth

The World Earth Day is on April 22nd. Here at Greenpeace, we know how much you want to make a positive(积极的) difference to our world! So, read on to find out how to protect our earth. 

What else can you do to make the world better? You can visit the website or scan the QR code to know more. 

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.