In classroom teaching, the present situation of students consciousness of questioning is characterized by no question to ask, dare not to ask, don t know how to ask and has no chance to ask.

在课题教学中，当今学生问题意识的现状是：没有问题可问、不敢问、不知如何问、没有机会问。

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"We don't dare to tell users that it's safe to enable Java again, " Adam Gowdiak, a researcher with Poland's Security Explorations told Reuters.

BBC: Java still contains security flaws, experts claim

Many of the other teachers don't dare to intervene.

CNN: ASIANOW - TIME Asia

Ms. HERRERA: And I don't mean to sound, you know, ornery or anything, but I dare you to come take my class for a week.

NPR: Teachers at Troubled School Face Job Loss