exam代考、essay代写当句中包含两个以上的独立子句却未正确连接时，即被称为连写句。独立子句是由一组字所组成、可独立成句的句子，例如：The horse runs。独立子句连接错误可能导致文意不清，使读者混淆。
连写句有两种类型：融合句（fused sentence）和逗号拼接句（comma splice）。
当独立子句间没有标点符号或对等连接词将其分开时，该句为融合句：
My professor read my paper she said it was excellent.
当两个以上的独立子句仅用逗号隔开时，该句为逗号拼接句：
My dog barked angrily,I knew he wanted food.
解决方法
可使用以下四种方法修改连写句：
1.使用一个逗号和一个对等连接词（and,but,yet,so,or,nor,for）
使用对等连接词连接两个独立子句时，请在对等连接词前加一个逗号。
连写句（融合句）
My professor read my paper she said it was excellent.
连写句（逗号拼接句）
My professor read my paper,she said it was excellent.
修正（逗点+对等连接词）
My professor read my paper,and she said it was excellent.
2.使用分号（或者，在某些情况中，也可使用冒号或破折号）
可单独使用分号，或外加一个转折语，例如：however、at any rate、in contrast、as a result等。转折语后请记得加上一个逗号，这么做不会形成逗号拼接句，因为转折语并非一个独立子句
连写句（融合句）
My dog barked angrily I knew he wanted food.
连写句（逗号拼接句）
My dog barked angrily,I knew he wanted food.
修正（分号）
My dog barked angrily;I knew he wanted food.
修正（分号+转折语+逗号）
My dog barked angrily;therefore,I knew he wanted food.
3.将独立子句分开，使其成为完整句
若其中一个独立子句非常长，则建议使用这个方法。
连写句（逗号拼接句）
It seemed to Jane that her son had more than enough pens,they were strewn across the bedroom floor,and some of them were broken,worse still,someone had used the tip of a red pen to mark a smiley face on the wall.
修正（将句子分开）
It seemed to Jane that her son had more than enough pens.They were strewn across the bedroom floor,and some of them were broken.Worse still,someone had used the tip of a red pen to mark a smiley face on the wall.
4.重组句子，将其中一个子句改为附属子句
若其中一个子句的重要性似乎低于其他子句，便可将该句改为附属子句。以下为几个例句，其中被改为附属子句的子句以底线表示。需注意的是，改写后的附属子句不再是独立子句，无法单独成为一完整句。
连写句（逗号拼接句）
The largest tree by volume in the world is the General Sherman Sequoia,it is a little over 52,500 cubic feet.
修正（句尾改为附属子句）
The largest tree by volume in the world is the General Sherman Sequoia,which is a little over 52,500 cubic feet.
连写句（逗号拼接句）
Richard Chen is a professor at National Taiwan University,he wrote the novel The longest sleep.
修正（句中改为附属子句）
Richard Chen,a professor at Princeton University,wrote The longest sleep.
连写句（逗号拼接句）
I told my roommate I would be late,she still locked me out.
修正（句首改为附属子句）
Although I told my roommate I would be late,she still locked me out.
连写句（融合句）
I told the children I would read to them they said they wanted to sit by me so they could look at the pictures.
修正（句首改为附属子句）
When I told the children I would read to them,they said they wanted to sit by me so they could look at the pictures.
Reference:
Hacker,Diana.A Writer's Reference.5th ed.Boston:Bedford/St.Martin's,2003.Print.200–06.
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