what引导的是主语从句、宾语从句或表语从句,并且在从句中充当主语或宾语.如: I like what she likes.(what引导宾语从句,what在从句中作宾语) I hate what she hates.(what引导宾语从句,what在从句中作宾语) What she said made us surprised.(what引导主语从句,what在从句中作宾语) Tell me what made you do that.(what引导宾语从句,what在从句中作主语) This is what I like.(what引导表语从句,what在从句中作宾语)