Look up in the sky. Do you see any clouds? What do they look like ?Some clouds are fluffy（绒毛状的）and white, like cotton balls. Others are dark, almost black, and make you hold an umbrella. At sunrise and sunset, clouds can look red, purple, or yellow，as if they were colored with crayons. But what are clouds anyway?

   You can't reach out and touch the clouds, but you can make your own in a bottle.

   You need :

   An adult helper

   A huge, empty glass container（容器）

   A metal strainer（滤网）

   Hot water

   Ice

   Do these:

   Step1. Have your helper fill the container with hot water ,leave it there for two minutes, then pour out most of the water, leaving just an inch or two at the bottom of the container.

   Step2. It's your turn now. Put the strainer over the mouth of the container. Fill the strainer with ice. Watch the container.

What happened?

A cloud formed in the container! Some of the hot water at the bottom of the container turned into the hot water vapor. The water vapor rose and met with cold air coming off the ice. When the water vapor condensed（凝结）,it formed a cloud. Hot air rises ad carries with it lots of water vapor. The higher the air rises, the more it cools down. Soon the cold air can't hold all the water vapor so it starts turning into tiny water drops, and becomes a cloud.

    Height is just one of the features your genes(基因) decide. In fact, because you have two parents, your genes provide you a height that usually lands somewhere between the height of each parent. If both your parents are tall, then most probably you will be tall, too. But if you have questions about how tall you're going to be, ask your doctor if he or she can help you find them out.

    But genes don't decide everything. For example, eating an unhealthy diet can keep you from growing to your full potential(潜力). Getting plenty of sleep and enough exercise will help you grow to the expected height.

    It's natural that you're wondering how fast you should grow. There's no perfect or right answer. Generally speaking, kids grow about 6 cm a year between age 3 and the time when they start puberty.

    Your doctor will know how your growth has been going over the years. 2 cm here and 3 cm there make a little difference to the height you're at now. How have you been growing up to this height? What other changes may your body be going through?

    Don't be amazed if you seem to have grown a lot in a very short time. Everyone has a growth spurt(高峰) during puberty. The age for starting puberty is about 10 for girls and about 11 for boys. But it can be earlier or later — between 7 and 13 for girls and 9 and 15 for boys.

    You'll usually begin to notice that you're growing faster about a year after your body starts to show the first changes of puberty.

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Scientists say that hobbies can make kids cleverer, healthier and even more successful when they grow up. How?

When you have a hobby, you learn new things. You have to read instructions (说明书). You look at websites, magazines and books to get more information about your hobby. More reading makes you a better reader and a better learner. 

For many hobbies, such as building model cars and making pottery (陶器), you have to use your brain as well as your hands. We learn by doing things and by touching things. These kinds of activities make people more creative (有创造力的). 

Having a hobby makes you feel good. Scientists say, "When you make something, the feel good part of your brain gets a message. It makes you feel happy. " When we feel happy, we have less stress(压力). Too much stress can make people ill. 

People with hobbies learn how to make goals and solve problems. Learning these skills when you are young can help you when you grow up. For some kids, having a hobby can be the first step to find a better job in the future. 

 There is an old opera in Wenzhou. It is called Ou Opera or Wenzhou Opera. {#blank#}1{#/blank#}. It is more than 300 years old.

 Ou Opera has nice music. {#blank#}2{#/blank#} People usually use suona and erhu when they sing. Actors usually use Wenzhou dialect (方言) to tell stories. {#blank#}3{#/blank#} Sometimes, the stories are very funny.

{#blank#}4{#/blank#} More and more people from all over the world come to watch it. Ou Opera is a kind of traditional art in Wenzhou. As Wenzhou people, it's important to keep and share it.

①I am John Brown. I am from England. I have a happy family. There are nine people in my family. They are my grandparents, my parents, my two sisters, my brother, my brother's wife and I.

②My grandparents are old and they like planting flowers in the garden. My father is a farmer and he has a big farm. My mother doesn't go to work. What does she do at home? Oh, she does housework.

③My brother is a doctor. He works in a hospital. His wife works in the hospital too. But she is a nurse. My two sisters are students. Helen wants to be an English teacher. Her English is very good. Julia likes to sing very much. She can sing very well. I'm in China now. I teach English in a middle school.

④I have a happy and big family.