两道题显出prep07关于run-on sentence解释的不详尽之处，望大家来讨论。

单调唱

114. (30375-!-item-!-188;#058&005280)
While Hans Holbein the Younger is most often identified with his English portraits, scholars have
long been recognizing him as a superb draftsman and a remarkably versatile artist and who was
fundamental in synthesizing the novelties of the Italian Renaissance with the rational tradition of
Northern Europe.
(A) been recognizing him as a superb draftsman and a remarkably versatile artist and who
(B) been recognizing him for being a superb draftsman and a remarkably versatile artist and he
(C) recognized him as a superb draftsman and a remarkably versatile artist who
(D) recognized him as a superb draftsman and a remarkably versatile artist and he
(E) recognized him for being a superb draftsman and a remarkably versatile artist and who

94. (29455-!-item-!-188;#058&004298)
Even though her career was cut short when she was in her prime and the fifteen recordings she
made were disappointing artistically as well as technically, Olive Fremstad (1871-1951) has never
been entirely forgotten by opera aficionados.
(A) though her career was cut short when she was in her prime and the fifteen recordings she
made were
(B) though her career was cut short while in her prime, with the fifteen recordings she made
(C) as her career had been cut short when she was in her prime, with the fifteen recordings she
had made
(D) with her career having been cut short when she was in her prime, and the fifteen recordings
she made were
(E) with her career cut short while in her prime, and that the fifteen recordings she made were

两个题都是prep07上的，一个有run-on sentence的错误，一个没有~两个题都是一个句子中，由and连接了两个主谓结构。

那么and连接两个句子是run-on sentence这个点（prep08里详述了此点）到底是不是正确的呢？还是说，这个不是绝对错误，只是不好？

llssyy93

根据manhattan的解释：A comma is not enough to join two main clauses. A sentence that violates this rule is called a Run-on Sentence.这个跟lz的问题有神马关系····木有明白
and连接两个主谓结构不是绝对错误，只是不好
一般来接都是svo,and svo.或者svo and vo.很少出现svo and svo，但这个结构不是一定错的~
114题之所以D错是因为句子的逻辑关系：
A选项，姑且称之为原文吧，想说的是学者们长期以来认为 他是一个superb draftsman and a remarkably versatile artist 后面who引导的从句是进一步修饰 a remarkably versatile artist 的，也就是说这两个结构是从属关系，地位不相同。如果选D的话，and是并列连词，将会使原本who引导的从句（次一级重要性，与superb draftsman and a remarkably versatile artist 相比是进一步修饰）与 recognized him as a superb draftsman and a remarkably versatile artist 变成并列关系，改变了句子的重心，所以不对~这样的话选C是最尊重原文的
94题也是同理啊，就是说svo and svo不是绝对错误的，只要此时两个svo是并列关系，地位同等重要

单调唱

根据manhattan的解释：A comma is not enough to join two main clauses. A sentence that violates this rule is called a Run-on Sentence.这个跟lz的问题有神马关系····木有明白
and连接两个主谓结构不是绝对错误，只是不好
一般来接都是svo,and svo.或者svo and vo.很少出现svo and svo，但这个结构不是一定错的~
114题之所以D错是因为句子的逻辑关系：
A选项，姑且称之为原文吧，想说的是学者们长期以来认为 他是一个superb draftsman and a remarkably versatile artist 后面who引导的从句是进一步修饰 a remarkably versatile artist 的，也就是说这两个结构是从属关系，地位不相同。如果选D的话，and是并列连词，将会使原本who引导的从句（次一级重要性，与superb draftsman and a remarkably versatile artist 相比是进一步修饰）与 recognized him as a superb draftsman and a remarkably versatile artist 变成并列关系，改变了句子的重心，所以不对~这样的话选C是最尊重原文的
94题也是同理啊，就是说svo and svo不是绝对错误的，只要此时两个svo是并列关系，地位同等重要

-- by 会员 llssyy93 (2012/4/30 16:22:20)

prep08还有一些资料明确指出，两个句子连接，要么用分号，要么就用",and"。如果用and连接两个句子就是run-on sentence，是溶合句。
比如A,B是两个主谓结构。就只能A, and B或者A；B。A and B就不行了。

prep07上关于114的解释就直接说D，run-on sentence了，所以错误。

prep08中讲解：Run-on sentence.
aeoluseros关于run-on sentence知识点的补充说明：
找过很多解释，包括一些语法书(也包括老外的)、百度，始终觉得措辞上不合适，不过在一本
手册上终于看到了满意的解释：
run-on sentence 连写句：
连写句指错误将两个独立分句合写在一个句子里面没有正确地用标点分离。
连写句有两种类型：
溶合句(fused sentence)：根本不使用标点把两个独立分句合写在一个句子里
逗号错误(comma splice):使用逗号但没有并列连词将两个独立分句写在一个句子里。
BTW: 所谓的独立分句即"主句"，其对应的是"从句"，都属于"分句"。
而run-on sentence的重点在于其改正方法：
1） 分为两个句子
2） 用一个逗号加上and, but, or或者其他并列连词
3） 两个句子中间使用分号

单调唱

S+V1+O1 and pronoun(指代S)+V2+O2. 被OG10 列为run-on sentence。可能GMAT认可这样的run-on sentence，即and后面是代词。

更多情况要从逻辑上去判断，看逻辑含义是否属于同一层次，两个独立主句是否能够并列。如上94题，虽然是两个句子并列，但是逻辑含义层次清楚，不算错误。