A predicate is a part of the sentence that describes the subject. An adjective is a word that describes the noun. The predicate adjective in the given sentence above is the word "helpful" and this predicate adjective describes the noun "Kathy" which is the subject of the sentence.
Good practices:
Speaking clearly
Standing straight and tall
Controlling your pacing
Speaking with the same volume
Moving your hand often to keep attention
Bad practices:
Looking at your notes the entire time
its A Since
to me it makes the most sense
If you mean how does use of questions contribute to the development of ideas in general, then it makes the raiders think as they read.
expressionism is often considered a revolt against realism and naturalism, seeking to achieve a psychological or spiritual reality rather than record external events in logical sequence. In the novel, the term is closely allied to the writing of Franz Kafka and James Joyce (see stream of consciousness).
I don't really know what you were looking for but I hope this helps