go 不及物动词,back 方向状语,three steps 距离状语。
go+名词有二种分析方法:
1 名词作go的距离状语;
2 go分析为及物动词,后接名词作距离宾语。
例如《韦氏高级词典》:
[+ object]
Are you going my way? [=are you going in the same direction that I'm going in?]
The car went the length of the street and then turned around.
《牛津》travel
He travelled the length of the Nile in a canoe. 名词作宾语(距离宾语)。
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