系列-18对划线部分提问详细讲解.ppt

2 一般过去时 ???????例1 He ate an apple .（ate an apple 划线） ??????????? （1）do代替ate?? what代替an? apple ???????????? （2）变疑问句：Did he eat an apple？ ???????????? （3）What+Did he eat an apple？ ????????????????????? do代替ate?? what代替an? apple 划线部分省略。 ?????????????（4）What did he do？归纳分析，写出正确答案? ???????? 例2 She did her homework.（did her homework 划线） ???????????? （1）do代替did? what代替 homework ?????????????（2）变疑问句：Did she do her homework？ ???????????? （3）What+Did she do her homework？ ????????????????????? do代替did? what代替 homework 划线部分省略。 ???????????? （4）What did she do？归纳分析，写出正确答案。 规则：? ??????? 在一般过去时中，对动词提问，用do代替划线动词； ?? 宾语用what代替；其句型结构是：What? did-------do？形式。????? 3 现在进行时? ?????????例1 He is eating an apple .（eating an apple 划线） ???????????? （1）doing代替eating?? what代替an? apple ???????????? （2）变疑问句：Is he eating eat an apple？ ???????????? （3）What+Is he eating an apple？ ???????????????? doing代替eating? what替an apple 划线部分省略。 ???????????? （4）What is he doing？归纳分析，写出正确答案? ??????? 例2 She is doing her homework. ?????????????（doing her homework 划线） ??????????? （1）doing代替doing? what代替 homework ????????????（2）变疑问句：Is she doing her homework？ ????????????（3）What+Is she doing her homework？ ?????????? ????? ?doing代替doing what代替 homework 划线部分省略。 ??????????? （4）What is she doing？归纳分析，写出正确答案。 规则： ????? ?在现在进行中，对动词提问，用doing代替划线动词； ??? 宾语用what代替；其句型结构是：What? is/are-------doing？ 4 过去进行时? ???????例1He was eating an apple .（eating an apple 划线） ???????? （1）doing代替eating?? what代替an? apple ?????????（2）变疑问句：Was he eating an apple？ ???????? （3）What+Was he eating an apple？ ????????????? doing代替eating what代替an? apple 划线部分省略。 ??????? （4）What was he doing？归纳分析，写出正确答案? ???? 例2 She was doing her homework. ????????? （doing her homework 划线） ???????? （1）doing代替doing? what代替 homework ???????? （2）变疑问句：Was she doing her homework？ ???????? （3）What+Was she doing her homework？ ????????? ??? doing替doing what代替 homework 划线部分省略。 ???????? （4）What was she doing？归纳分析，写出正确答案。 规则：? ?????? ?在过去进行时中，对动词提问，用doing代替划线动词； ?? ?宾语用