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The Achaemenid empire of Persia reached the Indus Valley in the fifth century B.C., bringing the Aramaic script with it, from which was derived both northern and southern Indian alphabets.
the Aramaic script with it, from which was derived both northern and
the Aramaic script with it, and from which deriving both the northern and the
with it the Aramaic script, from which derive both the northern and the
with it the Aramaic script, from which derives both northern and
with it the Aramaic script, and deriving from it both the northern and
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定从做了倒装。。 正常语序是both.. and... derive from which
虽然作对了，但是这道题错的人有点多，可能有点经典，Mark一记。主要是从“from which derive”判断的
看到这种介词前置，倒装语序的句子，一定要仔细判断句子的主语到底是谁，这样才能判断谓语动词单复数。
"derive" can also be used to mean "originate".
New system A originates from old system X.
New system A derives from old system X.
定从也有倒装，derive的主语是both the northern and the southern ...所以谓语动词是复数形式！！！！！
both the northern and the southern alphabets derive from...
介词+which后面的句子必须是完整的。 C乍一看以为from which 后面没有主语缺成分 其实是倒装！！！
正确语序：both the northern and southern Indian alphabets derive from the Aramaic script.
derive 是 alphabets的动词，还原为正常顺序后是both the northern and southern Indian alphabets derive from which(指代前面的te Aramaic script）
觉得c的the很redundant，所以没选。。
做题的时候太纠结了--不要太纠结，看到错的一定排！！
derive 的主语是alphabets, which 句子倒装：正确语序：both the northern and southern Indian alphabets deprive from the AS.
光顾着看平行和修饰问题 漏看了derive的主谓一致问题！！！！
1为什么宾语后置
：which是不能跳跃指代的，只能就近指代（修饰）the Aramaic script，所以要用bring with BA的结构
2.从句的倒装：
正常语序：both the northern and the southern Indian alphabets derive from which(which指代前面的the Aramaic script）【alphabets所以这里的derive用复数】
3.derive为什么不用被动？ 因为是客观事实
来自RON：
"derive" can also be used to mean "originate".
New system A originates from old system X.
New system A derives from old system X.
ron视频里说 noun+ prep+ noun的形式也可以跳跃指代的 只要意思没错
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客观事实所以用动词原型。which就近修饰
因为没注意到装，所以以为derive应该用第三人称单数
derive为何不用一般过去时？因为是客观事实
前面部分是个宾语后置问题，因为后面定语从句的就近修饰，把script后置。
bring A with B倒装bring with B A
"derive" can also be used to mean "originate".
New system A originates from old system X.
New system A derives from old system X.
加the不重要，但是特指更好
both northern and southern Indian alphabets derive from which. 定语从句的倒装。
bringing with it the Aramaic script, from which both the northern and the southern Indian alphabets derive.
来自 RON
"derive" can also be used to mean "originate".
New system A originates from old system X.
New system A derives from old system X.
there are lots and lots and lots of words like this in english. (e.g., I like to taste foods from different countries; These foods taste good.)
it's in the present tense because this statement is still (and always will be) true -- that's where the origins of those alphabets lie.
1.which是不能跳跃指代的，只能就近指代the Aramaic script，所以要用bring with BA的结
2.从句倒装，
derive 是 alphabets的动词
后半句还原为正常顺序后应该是both the northern and southern Indian alphabets derive from which(指代前面的te Aramaic script）所以动词不可以加s
derive为何不用一般过去时？因为是客观事实，比如下面的例句？medieval physicians were the first to discover that blood circulates through the human body
The Achaemenid empire of Persia reached the Indus Valley in the fifth century B.C., bringing with it （同位）the Aramaic script, from which（就近修饰） derive（倒装，动词提前） both the northern and the southern Indian alphabets.