“湖静映彩霞”，“潭清疑水浅”．前句说的是光的______；后者说的是光的______，“疑水浅”的意思是站在湖边向湖底看，觉得湖底比实际的______一些．
（1）“湖静映彩霞”是指天上的彩霞在平静的湖面形成的像，属于平面镜成像的现象，故是光的反射现象．
（2）“疑水浅”是指由于光的折射，看到水底形成的像，像的位置比物体的实际位置要浅，是光的折射现象．
故答案为：反射；折射；浅．
| 词形变换：选择方框里的词的正确形式填空，每词只用一次。 | |
2. Do you know who ________ America? 3. They will show us a ________ experiment in class. 4. I have nothing ________ to my letter. 5. Air is ________ than we think. 6. The force is strong enough ________ the water. 7. I will ask the class to make ________ and guess what will happen. 8. An Easter egg hunt is a game for ________ eggs. 9. To make a candle ________, you "light" it. 10. When the candle stops burning, it ________ up all the oxygen in the air. |