Hello, everyone!  1 to Class 3. I'm your new English teacher, Mr. Yang. Now let me tell you our class  2. First, you can't be late 3 class. You must 4 on time. Second, you must bring your English books and notebooks to every 5. Third, you must   6 English during the pair work activities. If it's 7 for you, you can ask me for help. Fourth, if you have any  8, you must put up your hands(举手). You can't talk or stand up without permission（未经许可）. These are all the rules. They are good for you,  9 you must follow them. I hope we can have a good 10 every day.

    It may be difficult to start high school. Thinking about making new friends might make you feel nervous.{#blank#}1{#/blank#}You are going to school with a group of students of your age. Here are several suggestions for you to follow.

    Forget your fear and just talk to someone. It's easier said than done. But try to take a deep breath and find your voice. Don't be afraid to approach (接近) people.{#blank#}2{#/blank#}Sit in the middle of the classroom with as many new friends around you as possible.

    {#blank#}3{#/blank#}Take part in after-class activities that interest you. Try to make friends in the clubs. If you don't join anything, you will be just going to class and then going home. Being in a club makes you more social.

    Stay clean. No one likes a bad smell that could knock someone over. Shower every day, brush your teeth and wash your hair.{#blank#}4{#/blank#}

    Be respectful (尊重的) of people's differences.{#blank#}5{#/blank#}And everyone believes in different things. It is a good thing to have different friends with different opinions because you can each share your own.

    In America, the school life is not easy for us students. There are so many rules we have to follow. When we start school, we get a rule book. There are always teachers looking out for people who are breaking the rules and prefects (长官) are everywhere too.

    The most rules are in the classroom and in the hallways. For example, you can't run or dance around in the hallways. We can't put our bags everywhere in the hallways.

    You can't eat or drink in the classroom or the hallways. Prefects watch you, They can give out duty slips (cleaning the dining hall for about 2 hours).

    If you make mistakes, you will get a detention. You may have to do some work for school. A detention is the most painful. You have to do a lot of tiring and boring things. There are rules for students out of school as well. Boys should not buy take away food in the street if they wear the school uniforms. The school also expects good behavior on public transport and in public places.

    Grandparents are respected in many human societies. But telling stories about old times and overfeeding grandchildren seem like human qualities. Are these classic grandparent behaviors really limited to humans?

Do any animals know their grandparents the way people do?

For most species on Earth, the answer is certainly " No" . " Usually, there aren't grandparents around anymore when an animal is born,"  said Mirkka Lahdenpera, a biologist at the University of Turku in Finland. " Even if an animal's life span does overlap (重叠) with its grandparents', most species spread out to avoid competing for resources, so the chance of running into a grandparent is slim." 

But there are a few clear exceptions, primarily among mammals (哺乳动物) that live in close social groups. In troops of langur monkeys in India, older females lived together with their daughters and grandchildren. The grandmother langurs defend the group's babies against attacks and even give their own grandchildren special treatment.

Many whale species, too, travel in family groups that include both grandmothers and grandchildren.

Elephant herds are also famously matriarchal. They are led by a grandmother, who can live to around 80 years old, and are generally made up of her daughters and their young. The females in a herd form close bonds and work together to raise their young.

Lahdenper found that the babies of young mothers were eight times more likely to survive if their grandmothers lived near them than if they didn't. When the young mothers were older and more experienced at raising babies, this beneficial grandmother effect disappeared even if the actual grandmothers were still around.

Indeed, most evidence for the benefits of grand parenting comes from mammals. But in 2010, researchers found that in troops of insects called gall-forming aphids, older females defend their relatives after they've stopped reproducing (繁殖).

And what about grandfathers? Studies of humans in recent decades have shown that a living grandfather can improve a person's mental health and other indicators of well-being. But there's no evidence of that in the animal kingdom. Male animals rarely socialize with their own children, let alone any grandchildren.

Has your mother or grandmother ever made embroidered (刺绣的)clothes for you? In the past, Chinese people often embroidered on hats, shoes and dresses. Some girls would even embroider on a sachet (香囊)as a gift for their lovers.

Shu embroidery comes from Sichuan. It is said that Shu embroidery is the old lest kind of embroidery in China. People began to make it during the Han Dynasty (206BC-220AD).They sold it to other countries such as ancient Rome.

Shu embroidery takes time. It might take as long as a whole day to finish just 10 cm. Embroidery workers need to divide each silk thread (丝线) into more than 10 or over 30 smaller threads. Each smaller thread is thinner than a human hair.

Meng Dezhi, who used to work at the Chengdu Shu Embroidery Factory，has been making Shu embroidery for over 40 years. She loves this form of art and wants more people to try it, so she gives lessons in universities. She said. "Although the work is hard, Shu embroidery stands for thousands of years of Sichuan culture. It is a symbol of Chinese culture as well."

Are you interested in robots? If so, try out robot Little Q at our science center from August Ist to August 6th. Little Q is a cute robot with a round head, two big eyes and two long legs. It's like a big toy that our children will love.