| 单词 | 信息需求 |
| 释义 | 〔dare〕The auxiliary forms are used primarily in present tense questions, negations, imperatives, and conditional clauses.These forms differ subtly in meaning from the main verb formsin that they emphasize the attitude or involvement of the speakerwhile the main verb forms present a more objective situation.ThusHow dare she take the exam without ever once coming to class? expresses indignation at the student's action, whereasHow did she dare to take the exam without ever once coming to class? is a genuine request for information. Whendare is used as a transitive verb meaning "challenge,” only main verb forms are possible andto is required: 助动词形式主要用于一般现在时疑问句、否定句、祈使句和条件从句中。这些形式和实义动词形式的意思有细微的差别，即他们强调说话者的态度和参与，而实义动词形式给出一个较客观的形势。因此她怎么敢从未上过课就参加考试呢? 表示对该学生行为的愤怒， 然而她从未上过课怎么敢参加考试呢? 是一真实的信息需求， 当dare 用作及物动词意指“挑战”时， 只能是实义动词形式而且要接to ： |
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