if引导的条件状语从句(共4页).doc

精选优质文档-倾情为你奉上语法 10单元语法 再现 梁老师组稿 2017-12-31一、观察下面的句子If you go to the party, you will have a great time.If you do , you will be late.If you do, you will be sorry.If they have it today, half the class wont come.If we ask people to bring food, they will just bring potato chips and chocolate.以上几个句子中“if”有相同的含义“如果”，引导条件状语从句逗号后面的句子是主句。整个连起来的大句子叫主从复合句。注意主句和从句的时态有什么特点。总结：If引导的条件状语从句用一般现在时，主句用一般将来时。简称“主将从现”