so 位于句首部分倒装RT 部分倒装是不是就是助动词提前的意思?那是不是 so clever is he 这里is 就是

不是助动词，但可以象助动词一样充当否定（加not)、疑问（提前到主语前） 如： He is a student. He isn't a student. Is he a student? She has a brother. She hasn't a brother. She doesn't have a brother. Has she a brother? =Does she have a brother? (have“有”时，可以直接加not，也可以用do,does来做助动词。