It's a sunny day. Little Water Drop sleeps in a river. He wakes up. He feels very hot. It may be cooler up in the sky. He goes up. He meets Mr. Wind.

    Little Water Drop goes higher and higher (越来越高). He meets many other little water drops. They go up together and become a cloud. Little Water Drop becomes very heavy.

    Little Water Drop and some of his friends fall down into a lake. The sun comes out. Little Water Drop feels warm again.

    It's summer and it's hot. There's a wildfire (野火) on the hillside (山坡). Bushes (灌木) and trees are burning. Fire engines (消防车) can't help. There are no roads near this fire.

    The firefighting helicopter (消防直升机) is coming to help. It carries a big bucket (桶).

    The pilot flies the helicopter to a lake. He drops the bucket into the lake and it fills (装满) with water. Then the pilot flies to the fire. He drops the water onto the fire. He goes back to the lake and gets more water. He flies from the lake to the hillside again and again.

    Finally, the pilot puts out the wildfire. He does a very important job.

    There is a city in the world. People do not drive cars in that city. It is called Venice (威尼斯). Venice is in Italy (意大利). There are no streets in Venice. But there are canals (运河). The canals look like streets. There is much water in those canals. In Venice people ride around the city in boats. Your father and mother may take a bus to work. In Venice, fathers and mothers ride in boats.

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—He can make a toy car.

A: Good morning, Kitty.

B: Good morning, Alice.

A: What a        day!

B: Yes. The wind        strongly.

A:        can we do?

B: Let's go the       . We can fly kites. Ok?

A: That's a good       . It's a good day for flying kites. Let's go.

Kitty: Hello, Alice.

Alice: Hello, Kitty.

Kitty:       

Alice: I'm reading a book.

Kitty:       

Alice: It's about the wind.

Kitty:       

Alice: The wind is useful.

Kitty:       

Alice: Because the air moves from one place to another place.

Kitty:       

Alice: People use the wind to make electricity (电).