英語語法強調句知識點：這道題中的did表強調

　　【導語】英語語法讓很多學生都頭疼，因為復雜難懂的句式和詞組有時難以記憶。英語網為大家整理了英語語法大全，希望對同學們的英語語法學習有所幫助。更多內容盡在英語網。

　　請看下面的題：

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

　　A. does B. did C. has to D. had to

　　【分析】此題正確答案應選B，句末的 the other day 意為前幾天，所以句子應用過去時態，而選項D填進去不合題意，故選B。此句有兩個難點：一是句中插有 however 一詞，分散了同學們的注意力;二是所填選項B為許多同學所不熟悉的強調用法。又如(答案均選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