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1、.一般现在时,除第三人称单数外，一般现在时大多是用动词原形来表示的（have和be按其各种人称变化形式与主语保持一致）。一般现在时多用来表示经常发生的动作或存在的状态。,1.The boys wake at seven oclock every day. He writes to his parents once a month. 2.He never wears a hat in winter.,表示现在的日常行为或反复出现的动作或状态。 注：这类句子常用的时间状语有：always，often，sometimes，every day，now and then等。 表示习惯、能力、特征、性格或
2、说话时的感觉、状态等。,3.The earth moves around the sun. Knowledge in power. 4.The meeting is at nine tomorrow morning. Train leaves at eight pm. 5.What time is it now?,表示客观事实或普遍真理。 表示按规定要发生的未来的动作或预约的行为。（多见于go come leave start stay return begin 等动词，后面常接时间状语。） 表示说话时刻的状态或情况。,主语为第三人称时:在一般现在时的情况下,(1) 一般情况下加s (2) 以
3、 s, x,sh, ch 结尾的在后面加es. (3) 以辅音字母加y结尾的改 y 为 i 再加es (4) 有些常见的特殊的do,go后面加es 像Nobody Everyone这样的代词，其动词也变成为第三人称单数形式,Exercises,1.What time_ his father_(do) the work? 2.He _(get) up at five oclock. 3._ you _(brush) your teeth every morning. 4.What _ ( do ) he usually _( do ) after school? 5.Tom _ ( study
4、) English, Chinese, Maths, Science and Art at school.,.一般过去时,一般过去常表示过去某一时间所发生的动作或存在的状态。一般过去时常和表示过去的时间状态连用，如a minute ago,yesterday,last week,in 1900,during the night,in those days等。,1.Where were you just now? 2.During his middle school years,he played football nearly everyday. I used to leave for wor
5、k at seven .,表示在过去某一时间里发生的动作或所处的状态。 表示在过去某一段时间里反复出现的动作或状态。 注：表示过去反复的动作或习惯的动作时也得用would或used to加动词原形。,3.At that time she spoke very good english. 4.I didnt expect to meet you here. 5.I wrote a composition yesterday.,表示主语过去的特征或状态、行为等。 在有些句子中虽然没有表示过去的时间状语，但谓语动词所表示的动作明显发生在过去，要用一般过去时。 表示在过去某段时间内完成的动作。,巧记一
6、般过去时,动词一般过去时，表示过去发生的事； be 用 was 或用 were,have,has 变 had ； 谓语动词过去式,过去时间作标志;一般动词加 -ed ,若是特殊得硬记。 否定句很简单，主语之后didnt添；疑问句也不难，did放在主语前； 不含be动词时 如果谓语之前有did，谓语动词需还原； 动词若是 was,were, 否定就把 not 添。 含 be 动词时疑问句也不难，要把 was ， were 放在主语前。,Exercises,1.My father ill yesterday . A . isnt B .arent C.wasnt D .werent 2your p
7、arents at home last week A .Is B. Was C .Are D .Were 3 The twins in Dalian last year They here now A .are;were B .were;are C .was;are D.were;was,大家来找茬,I goes to school everyday. Miss Smith teach English. My watch sayes ten to five. He arrives in hangzhou an hour ago. She were an orphan and gave piano lessons to rich children. He go out just now.,