作业帮非谓语.求讲解.（ ）map dated back to about 3000B.C.
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非谓语.求讲解.（ ）map dated back to about 3000B.C.
A.The oldest known
B.Known as the oldest
C.It was the oldest known
D.Known to be the oldest
为什么不能选BC?
A.The oldest known
B.Known as the oldest
C.It was the oldest known
D.Known to be the oldest
为什么不能选BC?
A.The oldest known 是对的.
这 oldest known.是“已知的最古老的”,做定语成分,修饰主语map的.句子的骨干其实是,The map dated back to about 3000B.C.
B.Known as the oldest错在词序不对,如果改为The map known as the oldest ,让known as the oldest做后置定语修饰the map或者保留前面的Known as the oldest,同时后面加逗号,紧接the map,即句子变成：Known as the oldest,the map dated back to 3000 B.C.也是对的；C.It was the oldest known 错在,句子的谓语在后面（dated back）,前面it was又出现谓语动词且不是从句,所以错.
这 oldest known.是“已知的最古老的”,做定语成分,修饰主语map的.句子的骨干其实是,The map dated back to about 3000B.C.
B.Known as the oldest错在词序不对,如果改为The map known as the oldest ,让known as the oldest做后置定语修饰the map或者保留前面的Known as the oldest,同时后面加逗号,紧接the map,即句子变成：Known as the oldest,the map dated back to 3000 B.C.也是对的；C.It was the oldest known 错在,句子的谓语在后面（dated back）,前面it was又出现谓语动词且不是从句,所以错.
非谓语.求讲解.（ ）map dated back to about 3000B.C.
——map dated back to about 3000 B.C
__map dated back to about 3000B.C
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