问题
选择题
Air is to us _____ water is to fish.
A．what
B．that
C．which
D．is that
答案
答案：A
题目分析：考查从句，固定句型Air is to us what water is to fish.句子意思“空气对于我们就像水对于鱼一样”
点评：做从句题时，首先看从句是否缺少成份，如果缺少就在关系代词里找引导词；如果不缺少成份，就在关系副词里选择引导词