在过去的几个月中，已经Proofreading了75篇英文Essay或文书。其中，在”标点类”相关的错误中，逗号(,)排名第一，其次是分号(;)和撇号(‘)。所以，今天小编就带大家一起来看看，如何才能正确的使用逗号。
Editors has proofread or heavily edited over 75 essays.That’s more than 99500 words in the last 6 months.Across all essays,commas(,)were the#1 punctuation errors made,followed by semicolons(;)和,and apostrophes撇号(‘).For this reason,Little Tom would like to talk about correctly using commas,and the most common errors.
在讲解用法之前，让我们先来看一些和逗号相关的改错练习。大家可以先想一想以下的句子需要如何改正，然后再看后面的答案解析呐！注意，其中有1个句子是正确的哦^^
1.Little Tom went running and he saw a duck
2.Little Tom went running and saw a duck,a dog,and,some cats.
3.Little Tom was running and a mallard,a kind of duck,attacked him.
4.Little Tom loves watching TV shows,and movies.
5.Little Tom also loves traveling,however,he loves sleeping.
现在，让我们一起来看看答案把！
1.Little Tom went running and he saw a duck.
——Little Tom went running,and he saw a duck.
虽然在这个句子中and只连接了两项，但由于两项均为完整的句子，所以需要在and前面使用一个逗号。
2.Little Tom went running and saw a duck,a dog,and,some cats.
——Little Tom went running and saw a duck,a dog,and some cats.
这个句子中的并列项有三个，所有and之前需要使用逗号。但需要注意的是，无论多少并列项，and和最后一个项目之间是不需要使用逗号的。
3.Little Tom was running and a mallard,a kind of duck,attacked him.
这句是正确的，这里需要逗号将a kind of duck与前后隔开的原因是因为a kind of duck是一个插入的短语。
4.Little Tom loves watching TV shows,and movies.
——Little Tom loves watching TV shows and movies.
在同一个句子中，当并列项有三者或以上，and前面需要添加逗号。这里只有TV shows和movies两个项目，并且是两个短语而非完整的句子，所以逗号前不需要使用逗号。
5.Little Tom lovestraveling,however,he loves sleeping.
——Little Tom loves traveling.However,he loves sleeping.
这是一个有争议的错误，即在连接词的前后都用逗号，而非前面句号。需要注意的是，这种用法在美国是完全不能被接受的，但在英联邦国家，例如英国和澳洲，则可以被接受。但从语法上来说，仍然是一种『错误』。