在句子'I taught myself to swim'中，'myself'是一个反身代词。

In the sentence 'I taught ___myself to swim', '___myself' is a ___reflexive pronoun.

听到突然的响声时，她的反射动作是立刻捂住耳朵。

Her ___reflexive action was to cover her ears when she heard the sudden noise.

他的日记内容越来越自我反思，主要记录自己的内心想法。

His diary became more ___reflexive, mostly recording his inner thoughts.