1、be動詞有am,is,are
2、特殊疑問句以特殊疑問詞開頭,對句中某一成分提問.
Ⅰ.常用的疑問詞可先分為3種:
疑問代詞：what,who,which,whose,whom
疑問副詞：when,where,why,how
疑問形容詞：what（which,whose）+名詞
Ⅱ.特殊疑問句有兩種語序：
1．陳述句的語序：疑問詞（＋主語）＋謂語動詞＋其他成分.通常為疑問詞作主語或主語的定語,即對主語或主語的定語提問,如：
Who is sitting at the table?Whose watch is broken?
2．如疑問詞作其他成分,即對其他成分提問,其語序是：疑問詞＋一般疑問句語序?如：
what grade are you in?
What does he look like?
Where do you come from?
What day is it today?
How do you like it?