====Good textbooks ARE what we need
what== the things that那百度知道里很多“What we need is good books.”一般来说，百度的英语是没有经过严格考核，是任何人都可以发进去的英语。那主语从句谓语动词形式怎么判断呢看be动词後面的名词：what i want IS your helpwhat I want ARE their deeds, not their words