学进去

Earth Hour is usually on the last Saturday of March. It's Earth Hour now. Many people turn off their lights. Alice usually watches TV with his parents in the evening, but now she is looking at stars. Kitty and Ben usually read storybooks before bedtime, but now they are lighting the candles. They are playing word games with their family. Sally usually does her homework at night, but now she is telling her sister a story. They feel proud to do something to save the Earth.

On a hot summer day, I feel the wind is cool. Where does wind come from? When (当) the sun warms the Earth, the air moves. The moving air is called the wind. The wind moves everywhere. There are different kinds of winds.

When the wind blows strongly, it can move the windmills quickly. It can make wet clothes dry. Children can fly kites happily. When the wind blows gently, it can transfer pollen (传播花粉). It makes people feel comfortable (舒适的). Strong wind will bring us power and energy. It is very useful. But sometimes the strong wind will destroy many houses and plants. That's too terrible.

Tom is on a camping (露营) trip with his mum, his dad and his older brother David. It is Tom's first camping trip.

They put up their tent (帐篷) beside a lake. They unpack (打开) their bags. They make their beds. In the morning they go for a walk in the forest. The forest is beautiful. The next day, Tom goes fishing with his dad. They fish for a long time. They don't catch anything. Tom and his dad sit by the lake and talk about the camping trip. They are both enjoying the trip.

Tom wants to go camping again. Next time, he wants his best friend Mike to go with them together.

Hi, I am Yaz. Look, this is my family. We live in the Stone Age. We have a fire. Fire gives us heat and light.

We always eat meat. My parents and my sister like meat, but I hate it. It does not taste good at all. One day, they give me a piece of meat again. I don't want to eat any meat, so I throw it into the fire. After a while, the meat smells very nice. We eat the meat. It tastes great!

After that, we cook all our meat on the fire.

Little Duck has a wind-bell on her window. It’s made of glass (玻璃). It goes “Tink-tink”. “Wow! That's the sound of the _______. I like it,” says Little Duck. Little Rabbit has a wind-bell in _______ room. It’s made of metal (金属). It goes “Clink-clink”. It's like music. She loves it! Little Pig wants to _______ the sound of the wind too. Look, Little Pig _______ some paper. He wants to make a _______ wind-bell. He puts it on his window too. The wind is blowing gently. Little Pig hears the sound of the wind, but he doesn't like it. It's too _______. Little Duck and Little Rabbit help Little Pig make a new wind-bell. It’s made of wood (木头). It goes “Clack-clack”. Little Pig can hear the sound of the wind. He _______ it very much.