Students are being dared to draw a picture，write an article，take a photo or write a poem that shows what they are curious about．
are being dared：这种结构，dare 一看就是“实意动词”。情态动词哪有进行体和被动式？
dare 作为实意动词，其中一个用法是：“激起，激将，刺激，鼓励”。其后接以动词不定式充当补足语的复合宾语。也就是说：
dare sb. to do sth.  激起某人做某事；鼓励某人做某事。
He dared me to jump over the river.
他激我跳过河。

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Teachers are daring students to draw a picture...