标点符号在ACT English部分的13%（约10道题），而其中逗号题又占据了标点符号题的一半以上（5道题）。在接下来的一周里，毕老师将带着大家把关于逗号的考点一网打尽，把这5道题收入囊中，永不再错！

FANBOYS原则

FANBOYS指for, and, nor, but, or,yet, so.

原则：

1.若FANBOYS后面的句子完整（即，主谓宾完整）则在FANBOYS之前加逗号

2.若FANBOYS后面的句子不完整，则不加逗号

3.FANBOYS后面不加逗号

1）The cause of the feud is parking spaces and the root of the problem, is that we all live on a cul-de-sac (a dead-end street, a place to turn around at its end). (61F English第2题)

F. NO CHANGE

G. spaces, and the root of the problem,

H. spaces, and the root of the problem

J. spaces and, the root of the problem

【答案】H

【解析】如下所示，这个句子是由and连接的并列句，两个句子的结构完整，因此要在and前面加逗号, J选项的错误原因是在and后面加逗号了

The cause of the feud is parking spaces and the root of the problem, is that we all live

　　主 系 表 主 谓 宾

on a cul-de-sac (a dead-end street, a place to turn around at its end).

2） Lance, and his buddy, think NASCAR is righteous.

A. No change B. and his buddy C. and his buddy D. and his buddy

【答案】C

【解析】and连接的是并列主语，不是完整句子，无需加逗号

3） Mike was the first person on the scene of the accident, and tried to help the injured passenger.

A. No change B. accident and tried C. accident and, tried D. accident; and tried

【答案】B

Mike was the first person on the scene of the accident, and tried to help the injured

　　主 系 表 谓 宾

passenger.

【解析】and连接的是两个谓语，and后面的部分缺主语，所以不能加逗号

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