英语句子问题请分析下面句子各个成分:The traffic rules say young children under
英语句子问题 请分析下面句子各个成分:The traffic rules say young children under the age of four and weighing less than 40pounds must be in a child safety seat 请详细分析那个是什么成分,还有,为什么weigh要变成weighing?
这是一个省略了引导词‘ that’ 的宾语从句,即 The traffic rules(主句主语) say{主句谓语)(that) young children (从句主语)under the age of four and weighing less than 40pounds(介词短语作定语修饰CHILDREN) must be(系动词) in a child safety seat(介词短语作表语) weigh变成weighing:是现在分词作定语.
The traffic rules是主语,say是谓语,从young开始到seat是宾语,整个宾语部分中young children是主语,under the age of four and weighing less than 40pounds是用来修饰children的,属于定语,must be 是谓语,后面是表语!