【导语】英语语法让很多学生都头疼，因为复杂难懂的句式和词组有时难以记忆。英语网为大家整理了英语语法大全，希望对同学们的英语语法学习有所帮助。更多内容尽在英语网。

　　根据英语强调结构的基本格式it is (was)that (who)可知，不管被强调成分为指时间或地点，还是指原因或方式等，其后一律要用that，不可用when, where, why, how等。至于其中的who，它只用于被强调成分指人的场合。如：

　　他是昨天晚上才第一次亲她。

　　误：It was last night when he kissed her for the first time.

　　正：It was last night that he kissed her for the first time.

　　我昨天是由于想买本字典而进城的。

　　误：It was because I wanted to buy a dictionary why I went to town yesterday.

　　正：It was because I wanted to buy a dictionary that I went to town yesterday.