He can use a certain type of instrument or certain type of academic subject to narrow down the focus of his research.
Answer:
The implication is that she will forever be perceived as inadequate, and she will not be noticed. During the one summer, her one "day in the sun," (a metaphor for someone getting their time in the spotlight,) she is shunned and literally locked away in a closet, unable to experience the sun.
Lol are you homeschooled???
The phrase "get out some paper and a pencil" is imperative since you are telling someone to do something or someone is telling you what to do.