发话人的疑惑有程度的差别,因而“是不是”问句从真问句到反问句之间是连续的。“是不是”弱问句是介于真问句与反问句之间的中间环节。“是不是”弱问句有疑问的功能,发话人在发问时存在疑问,需要听话人口头回答。“是不是”弱问句也有祈使的功能,需要听话人行动。“是不是”弱问句不同于真问句和反问句,其内部的功能也存在差异。 There is a degree of difference between the speaker’s doubts, and therefore “is not ” questions from the real question to the question is continuous between the questions. “Is not ” weak question is between the true question and rhetorical questions in the middle of the link. “Is not ” weak question the function of doubt, the caller questioning when asked, need obedient verbal reply. “Is not ” weak questions also have the function of imperative, you need to obey the action. “Is not ” weak question is different from the true question and rhetorical question, its internal function is also different.