爬呀爬大樹

想要爬上高高的樹頂，先要把單詞補全。請根據(jù)線索，摘取相應(yīng)樹葉上的字母進行組合，來補全單詞，登頂大樹吧！

1. There are four of these each year， and spring is one of them.

2. A part of the tree; Green in summer and yellow in autumn.

3. A part of a plant; beautiful and colorful.

4. Insect（昆蟲） with beautiful colored wings.

5. Put these in the ground to make plants grow.

6. Water falling from the sky.

7. Not too hot; not too cold.