根据首字母提示,用适当的单词填空,完成短文

Suppose you see a coin on the bottom of a swimming pool and want to dive for it.W_____ do you aim?

You should not aim at the coin! When l____ rays go into the water,they bend.The light rays reflected off the coin are bent as they pass t________ the water to your eyes.The b____ of light rays as they pass from one material to a ____ is called refraction

Refraction changes the d______ of the rays.The light rays are refracted at an a____ as they pass from the water into the air.
This e____ why it is hard for you to locate the coin. So w____you dive in for the coin,you should aim in f____ of it .

根据首字母提示填单词 根据句意及首字母提示，用所学单词的适当形式完成下列各句。 一.根据句意和首字母提示完成单词 二.用括号里单词的适当形式填空. 根据首字母填单词 根据句意，首字母提示用适当的词填空 根据首字母提示填入适当的词 按首字母的提示填单词 根据首字母的提示，完成下列单词 根据首字母提示写出正确的单词 填上适当的单词（有首字母！！！）