超详细的It的用法归纳总结（附习题及答案）一、It是代词指除人以外的一切生物和事物，用来指代时间、季节、天气距离、环境。在这里，i是一个虚词，没有任何实际意义。例如:①It is a quarter to eight now.现在是八点差一刻。②It is midnight. 现在是午夜。③It is time for breakfast.现在是吃早饭的时间。④-What is the date...

状语从句练习在复合句中作状语的从句叫状语从句。状语从句有时间、地点、原因、目的、结果、条件、方式、比较、让步等种类。看逻辑关系一、用适当的连词填空1. Dr. Bethune (白求恩) came to China _when_ he was fifty.2. He began to work _when/after/as soon as/the moment_ he got there.3. L...