答案:(2) different types of errors(不同类型的错误)
1 interlingual errors and intralingual errors(按照错误来源)
According to the source of errors, errors can be divided into interlingual errors and intralingual errors. Interlingual errors (or transfer errors) occur when a learner misuses an item because it shares the same feature with an item in the mother tongue. Intralingual errors (or developmental errors) are errors made within the target language itself. For example, the overgeneralization of a rule by extending it beyond its use.
2. Overgeneralization
It arises when the learner applies a rule in a situation where the rule does not apply
3 the nature of errors(按照错误性质)
In terms of the nature, errors often fall into five types: omissions, additions, double markings, misformations and misorderings.