资料介绍： It作先行主语和先行宾语的一些句型
She had said what it was necessary to say .
2. 强调句型
It is not who rules us that is important, but how he rules us .
3. "All+抽象名词"或"抽象名词+itself"(very+形容词)
He was all gentleness to her.
4. 利用词汇重复表示强调
A crime is a crime a crime.
5. "something(much)of"和"nothing(little)of" "something of"相当于"to some extent"，表示程度。在疑问句或条件从句中，则为"anything of "，可译为"有点"，"略微等。""译为毫无"，"全无"。"much of"译为"大有"，"not much of"可译为"算不上"，"称不上"，"little of"可译为"几乎无"。something like译为"有点像，略似。"
