一般现在时和一般过去时（课堂PPT）

1、一般现在时与一般过去时一般现在时与一般过去时一般现在时一般现在时一般现在时一般现在时构成构成用法用法常用时间常用时间1。主语。主语+ 动词原形动词原形 2。 主语主语+ 动词的动词的s/ es1、表示经常、习惯性动作。、表示经常、习惯性动作。Tom often goes swimming2、表示一种客观、表示一种客观事实或真理。事实或真理。The moon is round。always 总是总是sometimes 有时有时often / Usually经常经常every day /week /year动词三人称单数形式的构成动词三人称单数形式的构成构成规则例词1、一般在动词原形末尾加、一般在

2、动词原形末尾加 s look looks start starts2、结尾是结尾是 o, s , sh, ch , 的动词加的动词加 es go goes passpasses wash washes watch watches3 、结尾是结尾是“辅音字母辅音字母+y”的动词的动词, 先变先变“y”为为“i”再加再加-es study studies carry carries play -plays (元音字母元音字母+y 的，则不变）的，则不变） 一、主语不是三人称单数时一、主语不是三人称单数时 肯定：肯定： 主主+ 动词原形动词原形 We often go swimming.否定否定:

3、dont+动原动原 We often dont go swimming. 疑问疑问: Do+主主+动原动原 ? Do you often go swimming? Yes , we do. / No , we dont.I often _ letters to my friend. ( write )They usually _ playing football after school . (like )Sometimes we_ _ in PE class .( not run )When _ you _ up every day ? (get )The students _ lesson

4、s on Sunday .( not have )二、主语为三人称单数时二、主语为三人称单数时, 肯定：主肯定：主+ 动词的动词的 s/ es Tom often goes swimming. 否定否定: doesnt+动原动原 Tom often doesnt go swimming. 疑问疑问: does+主主+动原动原 ? Does Tom often go swimming? Yes , he does . / No , he doesnt. 1. Jack _ to go to school by bike every day. ( have ) 2. My mother often

5、 _ to work . ( walk ) 3. Sometimes Lucy _ lunch at home .( not have ) 4. Where _ your sister _ ? ( work ) 1. He _English in a school.I _maths in a school. ( teach) 2. I often _TV. (watch ) My brother often _books .(read) 3. He _ classes every day. (have) 4.They _ shopping on Monday. (not go ) 5.Tom

6、_ a bike every day. (not ride)6. My parents _(not like ) fish.8. What _ you _ ?(do )9.Where _ your uncle _? (live)10. When _she usually _up?( get) teaches teach watch reads hasdont go doesnt ride dont likedo dodoes workdoes get一般过去时一般过去时一般过去时一般过去时构成构成用法用法常用时间常用时间主语主语+动词的过去式动词的过去式1、表示过去某个时、表示过去某个时 间发

7、生的动作或间发生的动作或存在的状态。存在的状态。2、表示过去经常或、表示过去经常或 反复发生的动作。反复发生的动作。yesterdaylast nightin 1990two days ago规则动词过去式的构成规则动词过去式的构成构成规则例词1、一般在动词原形末尾加、一般在动词原形末尾加 ed look looked play played start started2、结尾是结尾是 e 的动词加的动词加 - d live lived hope hoped use used3、末尾只有一个辅音字母的末尾只有一个辅音字母的 重读闭音节词，先双写这重读闭音节词，先双写这 个辅音字母，再加个辅音字

8、母，再加ed stop stoppedplan plannedtrip tripped4、结尾是结尾是“辅音字母辅音字母+y”的动词，的动词， 先变先变“y”为为“i”再加再加ed study studiedcarry carried用用 法法1、表示过去某个时间发生的动作或存在的状态。、表示过去某个时间发生的动作或存在的状态。 He was here yesterday. I got up at six thirty yesterday morning. My father was at work yesterday afternoon. Did you have a good time l

9、ast summer?2、表示过去经常或反复发生的动作。、表示过去经常或反复发生的动作。 My father often went to work by bus last year. When I was a child, I often listened to music. 构构 成成 肯定：肯定： 主主+ 动词过去式动词过去式 We went swimming last weekend. 否定否定: didnt+动原动原 We didnt go swimming last weekend. 疑问疑问: Did+主主+动原动原 ? Did you go swimming last weeke

10、nd? Yes , we did. / No , we didnt.I _ letters to my friend last night. ( write )They _ playing football after school a year ago. (like )we_ PE class yesterday.( not have )Where_ you _ last Sunday ? (go )They_ the Great Wall in 1998 .( visit )PRACTISE改写句子：改写句子：1、Lucy did her homework at home.（改否定句）改否定句） Lucy _ _ her homework at home.2、He found some meat in the fridge.（变一般疑问句变一般疑问句) _ he _ _ meat in the fridge?3、She stayed there for a we