답변을 얻은 뒤 반드시 감사의 덧글을 남기고, 좋은 답변은 채택해 주시는 센스...
질문할 때 예의를 지키시기 바랍니다.(빨리... 고수분만..... 이런 식의 요구는 자제 바랍니다.)
질문 내용 :

2010년 6월 고2 모의고사 중 44번 지문입니다.

Sit still! Be quiet! These are the great watchwords of school.
If an enemy spy from outer space were planning to take over Earth, and if his strategy were to prepare mankind for this takeover by making children as stupid as possible,
he could find no better way to do it than to require them, for many hours a day, to be still and quiet. It is absolutely guaranteed to work.
Children live all of a piece.
Their bodies, their muscles, their voices, and their brains are all hooked together.
Turn off a part of them, and you turn them off altogether.

he could find no better way to do it than to require them, for many hours a day, to be 이 문장에서 to do 와 to require 과 to be 가 각 각 어떤 용법으로 나온 건가요??해석본과 맞춰봤을 때 이 줄은 명확한 해석이 안되네요.. 부탁드립니다. ^^