Ⅰ. 根据句意及首字母或汉语提示完成单词（10分）
1. Yesterday we went to the beach. The sun s_________ brightly and the weather was hot.
2. Don’t lose your heart. You will have another c_________.
3. I think the stamp is _________（值得）collecting.
4. The Earth is one of the eight _________（行星） that move around the Sun.
5. You can observe the sky through the _________（望远镜）.
