同学们备考托福写作，那你们知道托福写作的三大病句都有哪些吗？让朗阁小编给大家介绍一下吧！
 
 
　　1).破碎句
　　所谓破碎句，就是句子不完整，通常是没有谓语(或者说谓语是动词的非谓语形式，如分词)，或者是从句单独成句。
　　破碎句：she singing alone.(无谓语，singing是现在分词)
　　正确句：she is singing alone.
　　破碎句：he did not come.because he was sick.(从句单独成句)
　　正确句：he did not come because he was sick.
　　2).接连句
　　所谓接连据，就是两个句子直接连在一起，既未使用连词，也未使用正确的标点符号。
　　接连句:professionals such as lawyers or accountants usually work longer hours than factory workers they have greater freedom in planning their time.
　　正确句一:professionals such as lawyers or accountants usually work longer hours than factory workers.however,they have greater freedom in planning their time.
　　正确句二:professionals such as lawyers or accountants usually work longer hours than factory workers;however,they have greater freedom in planning their time.
　　3).句子连接不正确
　　所谓句子连接不正确，就是两个独立的句子之间以逗号连接，这是不合英语语法的。正确的做法是以连词、分号、冒号、句号等连接两个句子。
　　不正确句:breaking chalk into two pieces is a physical change,there is no change in the composition of the chalk.
　　正确句：breaking chalk into two pieces is a physical change,so there is no change in the composition of the chalk.
　　以上就是小编给同学们整理介绍的内容，希望会对你们的学习有帮助。　　

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