问题补充:
单选题Onlywhenheputhisfootintotheriver________thatthewaterwastoocoldtoswimin.A.he realizedB.did he realizeC.had he realizedD.he had realized
答案:
B解析试题分析:考查倒装,only+状语(状语从句)放句首时,主句要用倒装语序所以选B考点:考查倒装点评:不完全倒装,是把助动词提前;而完全倒装是把动词放在主语的前面。注意句子when he put his foot into the rive…是 when引导的时间状语从句。句子that the water was too cold to swim in.是个宾语从句。