5 always \ often \ particularly \ many times \ many a time 放在句首时，句子进行部分倒装。
Always am I amazed when I hear people saying that computers can replace teachers.
6让步状语从句由though或as引导时可用倒装，将表语放在句子最前面。
Fascinating as computers utilized in education seem, teachers’roles are more imperative.
7 so that 引导的结果状语从句可用倒装。
So severe is this problem that we have no alternative but to take some feasible measures to deal with it.
