20點求英史一小段文與3個問題之資料

Dear 知識+們:
請問有哪位好心人士知道下面文章從哪擷取?(作者/標題/內容/或其它) 3題目之答案?
感激萬分!!
Therewith she spewd out of her filthy maw
A floud of poyson horrible and blacke,
Full of great lumpes of flesh and gobbets raw,
Which stunk so vildly, that it forst him slacke
His grasping hold, and from her turne him backer:
Her vomit full of bookes and papers was,
With loathly frogs and toades, which eyes did lacke,
And creeping sought way in the weedy gras:
Her filthy parbreake all the place defiled has.
Q4. Who does the passage describe?
Q5.What literary mode does this poem use?
Q6.What is the declared purpose of this poem?