初三英语语法-动词(定义、分类、时态、形式).ppt
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1、英语语法词性详解二,动,词,二、动词的分类,(1),(3),(2),一、动词的定义,三、动词的时态,四、非谓语动词,五、被动语态,1.一般现在时,2.一般过去时,3.一般将来时,4.现在进行时,5.过去进行时,6.现在完成时,7.过去完成时,8.过去将来时,六、动词的基本形式,一、按词义和句中的作用,动词可以分为四类,二、按动词的形式可以分为谓语动词和非谓语动词,1、谓语动词(如下),与主语在人称一致,与主语在人称一致,表示动作发生的时间,主语是动作的发生者或者承受者,说话人表达事实、要求、愿望等,I am reading now. 第一人称,He writes well. 第三人称单数,He
2、 wrote a letter to me last month. 过去时态,We study English.主动The road was filled with rubbish. 被动,He has flown to America. 事实I wish I could fly to the moon some day. 愿望,2、非谓语动词,1.一般现在时,常与连词:when , as soon as , before , after , until , if 如果,等引导的时间状语或条件状语从句,2.一般过去时,(1).表示过去某一时间点发生的动作或所处的状态.e.g. He arriv
3、ed in Hangzhou an hour ago. Where were you just now?,(2).表示过去某一时间里反复出现的动作或状态.e.g. Their children often went hungry in the old days. During his middle school years, he played football nearly every day.,(3).表示主语过去的特征或性格等.e.g. At that time she spoke very good English.,(4).一般过去时往往和明确的过去时间状语连用.如:yesterda
4、y, last night, two days (months, weeks) ago, in 1996, at that time 等,也常和when, if等引导的状语从句连用.e.g. Did you play volleyball yesterday afternoon? My father, when he was a child, worked 15 hours for the landlord a day.,(5).一般过去时可与today, this week, this month等时间状语连用.e.g. I saw him today.He came late three
5、times this week.,3.一般将来时,.will / shall +动词原形(备:在口语中,shall和will常缩写成ll,紧接在主语之后。其否定式shall not和will not的简略式分别为shant和wont),(1)构成,. be going to + 动词原形,. be + 动词-ing形式(动词-ing形式通常是表示位置转移的动词,如arrive, come, go, leave, move, start, stay, get等),.be + 动词不定式 (例:You are to be back before 10:00 p.m. 你必须在上午10点前回来。表示
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