时间状语从句和过去完成时

时间状语从句和过去完成时Tag内容描述：<p>1、优化方案 成功相伴时间状语从句和过去完成时专题训练学习目标：时间状语从句和过去完成时学习重点：时间状语从句和过去完成时学习难点：过去完成时时间状语从句引导时间状语从句的从属连词有：when, whenever, as, while, before, after, till, until, since, as soon as, hardlywhen, no soonerthan, every time, each time, the first time等。Not until 在句首，主句用倒装。一、 while，when和aswhile引导时间状语从句，谓语动词为持续性动词，表示可持续的动作和状态。同时while可以对比；也可以引导让步状语从句。when引导的从句的。</p><p>2、Module 3,Grammar,Adverbial clause of time,Grammar 1,1. When it was performed in America, there was an audience of 100,000 people. 2. When he was very young, Mozart had a lot of musical talent. 3. While he was still a teenager, he was a big star. 4. As he grew older, he began to go deaf.,“When” is used when the sentences refer to a single event in the past. “When” and “while” are used when the sentences refer to a period of time in the past. “As” is used when the sentences refer to a prog。</p>