There are a large number of words in English, and their pronunciations are light and heavy, such as admiration, excitement, superiority, surrounding, appearance, desire, attack, supply, belief, return and so on. So it is convenient to write English poems in iambic. In other words, iambic rhymes conform to the rules of English pronunciation. So iambic is the most commonly used in English poetry, and 90% of English poetry is written in iambic. The first two poems are iambic poems.
Empty house
Alexander Pope
You hit your head, and your wisdom will appear:
Please knock at the door, there is no one at home.
You pat your head and feel that inspiration will come soon. Knock all you want. Nobody will open the door. Head, head. Imagine, verb: think, imagine. )
The basic prosodic type of this poem is iambic, with five steps per line. So the meter of this poem is called iambic pentameter. The beat of a poem is composed of the type and number of steps contained in the line.