Little children use a lot of silent signals to communicate, but we've got ways to read their body language.

    Like many parents of children, you might find it is hard to1your children's signals. Even though children can know around 200 words by their second birthday, they are only able to250 of these words in daily life. This means you have to3your children's body language much of the time to know how they're4or what they want. While no one expects you to be a mind5, you can pay attention to your children's body language to learn how to6in some cases.

    It is difficult to believe that one little arm cross can have more than 67 kinds of meanings. But for children, it's7to be a signal that they're feeling uneasy. For example, your children might not be able to8 “I don't want this unfamiliar (不熟悉的) horse near me”, but they can9themselves from it by folding their arms to10a protective barrier (保护屏障).

    Learn more about your children's body language so that you can communicate with them more easily.

—Nobody, I taught ______ English.

They ten thousand trees on the hill.

    Some students think difficult to learn English well, That's because they don't find the right way. I think is very important to students. The more you read, the better you will understand. Reading is helpful to listening, speaking and writing.

    If you often read English , you'll improve your listening. On the other hand, listening a lot can help you speak clearly and fluently. You can read English everywhere when you are free, if you want. You can get a lot of knowledge when you read. When you want to express your ideas, you can speak or write. That means you are using what you learnt from reading. So you can write better and better. If you want to memorize(记住) something, you should read it again and again and try to use it. So from now on, you'd do more reading. It's a good way to learn English well.

—__________

—I'll tell her when I ______ her.

1 When and where do you usually do it?     

2 How often do you do it?

3 How long do you do it each time?          

4 How does it help you keep fit?

A

    A farmer's cow was ill. he was worried and ask the vet to see it.

    "What's the problem?"the vet asked.

    "I don't know why my cow's lying down and won't stand up. She won't eat, and she's making a strange noise." the farmer said.

    The vet looked at the cow."She's certainly ill and needs to take some very strong medicine." He took a bottle out of his box and put two pills into his hand."Give her these,"he said,"The pills should make her better."

    "How should I give them to her?" the farmer asked.

    The vet gave him a long tube (管子)."Put this tube in her mouth," he said, "then put the pills in the tube and blow. That'll make it." Then the vet went away.

    The next day the vet came to the farm again. The farmer was sitting outside his house and looked more worried.

    "How's your cow?" the vet asked.

    "No change," the farmer said, "and I'm feeling very strange myself."

    "Why?"

    "I did what you said," The farmer answered. "I put the tube in the cow's mouth and then put two pills down it. But the cow blew first".

Vaccines (疫苗) help keep you healthy. How do vaccines help you keep healthy? The vaccines are made from bacteria (细菌)that causes the illness. A little bit of bacteria isn't enough to make you sick. But it is enough to make your immune system(免疫系统) active.

While some vaccines are a lifetime, others wear off after a few months or years. Most doctors suggest the following vaccines: measles-mumps-rubella, hepatitis B and chicken pox. After these vaccines when you are very young, you will be far away from most of these diseases all your life.

Joe's flu vaccine will be good for about six months to a year. His doctor explained why. "When I give a flu shot(注射), "Dr. Smith said, "I put a bit of flu bacteria into your body. You build up antibodies(抗体) against this bacteria. But this vaccine won't protect you once (一旦) the bacteria has changed. That's why you will have to get a new one before the flu season hits next year."

"I had the flu last year," Joe said. "I was really sick. I missed a whole week of school. When I did go back, I still didn't feel really great. I couldn't even play basketball for another week after that. I guess it's worth (值得…的) getting a flu shot every year. "

Are you protected? That shot is so much easier than getting one of these serious illnesses.

    Back in 2008, American photographer Rose-Lynn Fisher was going through a hard time in her life, so she often cried. One day, she didn't brush her tears(眼泪)away. She put one tear under a microscope (显微镜), wondering what her tear would look like.

    She was amazed by what she saw. "It was really interesting, "she told the Telegraph. "It was almost as if I was looking down at a landscape from a plane. "It was such an amazing discovery!

    So she started thinking about a question: would a tear of grief(悲伤)look any different than a tear of joy? What about a tear from cutting an onion?

    She collected 100 samples(样本)of tears caused by different things and put them all under a microscope. She was surprised to find that their appearance was changed by what had made people cry.

    She thinks that this might be because of the different hormones(荷尔蒙)in the tears. The hormones may change their molecular（分子的）structures.

    Then she wanted to know if men's tears are different from women's tears. She was also surprised by what showed up in the photographs of microscopic tears.

    It was not a controlled scientific study, so there were many factors that could influence the resulting images. However, what she found was already something impressive.

    Why don't you save some of your own tears and see what they look like when you are sad, happy or chopping(切) onions?