The
The adjective in the sentence is "dust." It describes the action of lifting the books, suggesting that the books need to be lifted for the purpose of dusting.
That building is a huge skyscraper
Lift
Please help me get this speck of dust out of my eye.
It should be a verb because it shows action. For example "Marie dusts the living room." Marie is subject because she is doing the "action". The action being done in this sentence is "dusts". Thefore in this particular sentence "dusts" is a verb.
The word dust is a noun and a verb; however, it is sometimes used as an adjective, for example dust bunnies or dust ruffle.
pick up
Please take this rag and dust those stairs as you ascend to hide out in your room.
its freezing cold!!! it blows you and your papers away!!!!
There are three adverbial phrases in the sentence: "in dust and webs," "under the stairs," and "under the mildewing books and tattered old newspapers."
Please call collect at your convenience. This knick knack will just collect a lot of dust.
dusty
dusty
Of course I'm covered in dust, I've been milling wheat all day.
There may be gold dust in that silt. Quicksand is not quite the same as silt. Please sweep the silt from the gutter.