—____ my dictionary anywhere? —Yes. I saw it on your desk a moment ago. [ ]A. Did you see B. If you see C. Had you seen D. Would you see -九年级英语

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(5)表示过去一段时间内经常或反复的动作。常与always,never等连用。
Mrs. Peter always carried an umbrella.彼得太太过去老是带着一把伞。
(只是说明她过去的动作,不表明她现在是否常带着伞。)
比较:
Mrs. Peter always carries an umbrella.彼得太太老是带着伞。
(说明这是她的习惯,表明她现在仍然还习惯总带着一把伞)
Mrs. Peter is always carrying an umbrella.彼得太太 总是带着一把伞。
(表示说话者对这一动作或行为厌烦)
I never drank wine.我以前从不喝酒。
(不涉及到现在,不说明现在是否喝酒)

(6)如果强调已经终止的习惯时要用 used to do(过去常常做,而现在不那样做了)
He used to drink alcohol.他过去喝酒。
(意味着他现在不喝酒了。喝酒这个动作终止了)
I used to take a walk in the morning.我过去是在早晨散步。
(意味着现在不在早晨散步了)
比较:
I took a walk in the morning.我曾经在早晨散过步。
(只是说明过去这一动作)

(7)有些句子,虽然没有表示过去确定时间的状语,但实际上是指过去发生的动作或存在的状态的话,也要用过去时。
I didn''t know you were in Paris.我不知道你在巴黎。
(因为在说话时,我已经知道你在巴黎了。这句话指的是说话之前,所以只能用过去时表示。实际上,这句话暗指:But now I know you are here.)
I thought you were ill.我以为你病了呢。
(这句话应是在说话之前,我以为你病了。但是现在我知道你没病)

  • 一般过去时三变技巧:
    一变:肯定句变为否定句
    技巧1.当句中含有情态动词或助动词could,would,should等时,可直接在其后面加not构成否定句。例如:
    I could get you a concert ticket. → I could not / couldn't get you a concert ticket.
    技巧2.当句中含有系动词was,were 时,可直接在其后加not构成否定句。例如:
    I was on the Internet when you called me. → I was not / wasn't on the Internet when you called me.
    技巧3.当句中谓语是除情态动词、助动词、系动词was, were以外的动词时,在该动词之前加did not / didn't,动词还原,构成否定句。例如:
    The famous singer sang some Chinese songs. → The famous singer did not / didn't sing any Chinese songs.

    二变:陈述句变为一般疑问句
    技巧1.移动词语的位置。将was,were, could,would,should等移到句首。例如:
    He could pack his things himself. → Could he pack his things himself?
    技巧2.添加助动词did。谓语是除情态动词、助动词、系动词was, were以外的动词时,在主语之前加did,动词还原。例如:
    Mr Li looked very old. → Did Mr Li look very old?

    三变:陈述句变为特殊疑问句
    技巧1.确定疑问词:人who / whom,物what,地点where,时间when / what time,原因why,频率how often,长度how long,距离how far等等。例如:
    They gave the concert last night. → When did they give the concert?
    技巧2.辨认结构形式:疑问词+情态动词/助动词/ was / were / did +主语+...? 例如:
    The accident happened near the station. → Where did the accident happen?

  • 考点名称:一般疑问句

    • 一般疑问句:
      是疑问句的一种。通常用yes,no来回答的疑问句叫做一般疑问句。口语中若无特殊含义,句末用升调。
      其结构是:系动词be/助动词/情态动词+主语+其他成分? 
      通常回答为:   
      肯定:Yes+主语+提问的助动词   
      否定:No+主语+提问的助动词+not 
      例如:
      Are you from Japan?   Yes, I am./No, I'm not.
      Do you live near your school? Yes, I do./No, I don't. 
      Can you speak French?  Yes, I can./No, I can't.

    • 一般疑问句的特性:
      1.将陈述句变为一般疑问句时,如句中有be 动词(am/ is/ are)时,可直接将它们提至主语前。
      如主语为第一人称,应将其改为第二人称。如:
      I'm in Class 2Grade 1. →Are you in Class 2Grade 1﹖
      We're watching TV. →Are you watching TV﹖
      2.陈述句中有情态动词(can、may、must …)时,也可直接将它们提至主语前,即可成为一般疑问句。如:
      He can swim now. →Can he swim now﹖
      The children may come with us. → May the children come with us﹖
      3.陈述句中只有一个实义动词作谓语且其时态为一般现在时,变为一般疑问句时要在句首加do或does主语后的实义动词用原形。如:
      I like these animals. →Do you like these animals﹖
      She wants to go to the movies. → Does she want to go to the movies﹖
      4.一般疑问句一般读升调(↑)
      5.一般疑问句有时不用yes或 no 回答。如:
      Are they in town now﹖
      I think so.
      May I sit here﹖
      Certainly.
      Does he like soccer﹖
      Sorry I don't know.
      6. 一般疑问句的第一单词总是虚词,读的时候要读轻声。

    • 陈述句变为一般疑问句技巧:
      根据一般疑问句不同的家族,可以用不同的方法将陈述句变为相应的一般疑问句。
      1、第一家族:含be动词或情态动词的句子
      秘诀:一调二改三问号
      一调:即把句中的be或情态动词调到主语前;
      二改:改换主语称谓,即将句中的主语I\my \mines\we\our\ours等。第一人称分别改为相应的第二人称you\your\ yours等;
      三问号:句末的句号改为问号。如:
      Eg. I am an English teacher.    →    Are you an English teacher?
      Eg. We can speak English fluently.   →    Can you speak English fluently?

      2、第二家族:含行为动词(或称为实义动词)的句子
      秘诀:一加二改三问号
      一加:即在句首加助动词Do或Does;
      二改:1、把谓语动词改为原形;2、改换主语称谓(同第一家组);
      三问号:句末的句号改为问号。
      Eg. We read English every morning. → Do you read English every morning?
      Eg. Tom’s father listens to English on the radio every evening. →Does Tom’s father listen to English on the radio every evening?
      特别注意:对于第二家族一定要注意动词的还原,因为时态与数的变化已经体现在助动词上了。

      3、加强记忆口诀:
      肯变一,并不难,can 或be提在前;
      谓语若为行为动,do 或does句首用。

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