一道高中英语单选求详解I wonder how many years ago____A.did your father join the armyB.has your father join the armyC.your father joined the armyD.your father has joined the army请问,这个题考察了哪一种类型的名词性从句为

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一道高中英语单选求详解Iwonderhowmanyyearsago____A.didyourfatherjointhearmyB.hasyourfatherjointhearmyC.yourfathe

一道高中英语单选求详解I wonder how many years ago____A.did your father join the armyB.has your father join the armyC.your father joined the armyD.your father has joined the army请问,这个题考察了哪一种类型的名词性从句为
一道高中英语单选求详解
I wonder how many years ago____
A.did your father join the army
B.has your father join the army
C.your father joined the army
D.your father has joined the army
请问,这个题考察了哪一种类型的名词性从句
为什么不选D?

一道高中英语单选求详解I wonder how many years ago____A.did your father join the armyB.has your father join the armyC.your father joined the armyD.your father has joined the army请问,这个题考察了哪一种类型的名词性从句为
选C是对的.考察是宾语从句.ago就要用一般过去时.
I wonder how many years ago your father joined the army.这句话主语是I,谓语是wonder,宾语是从句how many years ago your father joined the army.
因为从句有ago所以从句要用一般过去时态;因为ago是表示时间点的词,不是时间段的词,不能用完成时,所以选c,一般过去时,而不选d.

这句话的意思是,我想知道你爸那年之前参的军。就好选择答案了.

C
这个考察了名词性从句中的宾语从句
这个题中只能选C因为,根据题意知道,他问的是你的父亲多少年前参军的,(how many ago),而不是参军多长时间了。
D现在完成时与一段时间连用,表示参军长短。所以应该排除掉

ago 这个词就告诉你了是过去发生的动作 , has 完成时态 是时间段 ago 又不是时间段 ,
整个句子 是 i 主语 wonder 谓语 后面所有的做宾语。

join是一个瞬间动词,不能与完成时连用,而且,这里是一个宾语从句,要用陈述句语序,所以排除A,B,D