学生英语错题汇总25：你知道英语中的“流水句”错误吗？
【上期回顾】
【本期错题】
下面我们就来看看本期的错题解析。
一、典型错题
【问】你知道上图中划线的句子错在哪吗？
二、错误分析
这句话是这样的：
She had just taken the medicine, she was sleeping now.
这句话其实包含两个独立的句子，但中间只是用逗号隔开了，这种情况在英语里一般被视作错误。
而这种错误被称作“流水句（Run-on sentences）”。韦伯斯特在线词典是这样定义“流水句”的：
a sentence containing two or more clauses not connected by the correct conjunction or punctuation https://www.merriam-webster.com/dictionary/run-on%20sentence
也就是说，所谓的“流水句”，是指两个或两个以上的句子没有通过正确的连词或标点符号连接起来。
常见的流水句的错误有三种：
1、逗号粘连错误（Comma splice）
这类错误是指直接用逗号连接两个独立的句子。比如：
Kelly likes to cook, she makes chicken every day.
这类错误可通过更改标点符号或增加连词来修订。比如上句话可以改为：
Kelly likes to cook; she makes chicken every day. （把逗号改为分号）
或
Kelly likes to cook, and she makes chicken every day. （增加连词）
2、熔句错误（Fused sentences）
这类错误是指两个独立的句子没有任何连词或标点符号，直接连在了一起。如：
Mary likes dogs she has a beagle.
这类错误也可通过更改标点符号或增加连词来修订。比如上句话可以改为：
Mary likes dogs; she has a beagle.
或
Mary likes dogs. She has a beagle.
或
Mary likes dogs and she has a beagle.
3、连词叠用错误（Polysyndeton）
这类错误是指连续使用多余的连词来连接并列的成分。如：
We went to the park and we ate dinner and we got ice cream and when it got dark we chased fireflies.
这类错误往往可以通过减少不必要的连词，并结合增加标点符号的办法来修订。比如上面的句子可以改为：
We went to the park. Then, we ate dinner and got ice cream. When it got dark, we chased fireflies.
需要注意的是，这类用法有时是作者刻意为之的，是一种修辞手法，用来增加整个句子的节奏感，同时凸显每个并列的成分。比如下面选自《圣经》的这句话：
“And Joshua, and all of Israel with him, took Achan the son of Zerah, and the silver, and the garment, and the wedge of gold, and his sons, and his daughters, and his oxen, and his asses, and his sheep, and his tent, and all that he had.”
—— The Holy Bible, Joshua 7:24 (By the Prophet Joshua)
三、正确答案
因此，上面划线部分的句子应该改为：
She had just taken the medicine, and she was sleeping now.
或
She had just taken the medicine. She was sleeping now.