英语语法强调句知识点：这道题中的did表强调

　　【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。

　　请看下面的题：

　　An awful accident _________, however, occur the other day.

　　A. does B. did C. has to D. had to

　　【分析】此题正确答案应选B，句末的 the other day 意为前几天，所以句子应用过去时态，而选项D填进去不合题意，故选B。此句有两个难点：一是句中插有 however 一词，分散了同学们的注意力;二是所填选项B为许多同学所不熟悉的强调用法。又如(答案均选B)：

　　(1) Your mother _________, however, say that to us that day.

　　A. does B. did C. is doing D. was doing

　　(2) Our math teacher _________, however, speak English well.

　　A. doing B. does C. is doing D. was doing