一般过去时的讲解.ppt

Grammar,知识结构,动词的过去式,1. 表示过去某个时间发 生的动作或存在的状态。 2. 表示过去经常或 反复发生的动作。,yesterday morning/afternoon last night/week/year/ Sunday/ in 1990 two years/weeks ago,Grammar,动词过去式的变化,1. 动词be的变化：,was,were,2. 助动词do的变化： do did (在过去时里助动词do没有 人称和数的变化) 如：Did you play soccer yesterday? Did he play soccer yesterday?,3. 实义动词的变化： 实义动词分规则变化和不规则变化。 规则变化有以下几种： (1) 一般情况下在动词后加-ed。 e.g. playplayed visitvisited walkwalked cleancleaned,(2) 以不发音的e结尾的词，在词尾 加-d。 e.g. livelived likeliked dancedanced hopehoped,(3) 以一个元音加一个辅音字母结尾的 重读闭音节结尾的单词，要先双写 这个辅音字母，再加-ed。 e.g. stopstopped dropdropped planplanned,(4) 以辅音字母加y结尾的单词，先改y 为i，再加-ed。 e.g. studystudied carrycarried 不规则变化需要按一定的规律逐个 记忆。,规则动词词-ed的读音清念 /t/ ,元浊/d/ ; /t/ /d/ 之后念/id/,1、清念 /t/ ，即 ed 在清辅音后面念 /t/ , 例：finished helped passed cooked 2.元浊 /d/ ,即 ed 在元音，浊辅音后面/d/ 例：borrowed enjoyed called moved 3、/t/ /d/ 之后念 /id/ , 即 ed 在 /t/ /d/ 音后 面念 /id/ 例：wanted shouted needed counted,不规则变化(需逐个记忆)： do did come came go went sit sat have had can could take took give gave put put get got swim swam eat ate tell told sleep slept see saw wear wore lie lay drink drank find found write wrote can could will would sing sang read read,do did go went read read see saw get got sit sat have/has had am/is was,在本单元中出现的不规则动词有以下几个：,III. 写出下列单词的过去式 talk milk am /is are go ride feed take do see,talked was went fed did,milked were rode took saw,I _ 12 years old this year.,我去年11岁.,I _ 11 years old last year.,He _ in Beijing now.,他昨天在上海。,He _ in Shanghai yesterday.,他现在在北京。,Please look at the sentences,我今年12岁.,am,was,is,was,They _ in China today.,他们今天在中国。,They _ in Japan yesterday.,他们昨天在日本。,are,were,am/ is,was,are,were,每天，早餐我吃鸡蛋和牛奶。,I _ eggs and milk for breakfast every morning.,昨天，早餐我吃面条。,I _ noodles for breakfast yesterday morning.,他每天都吃水果。,He _ fruit every day.,昨天他吃了3个苹果。,He _ 3 apples yesterday.,have/ has,had,have,has,had,had,I get up at 6:30 every morning. I _ up at 9:00 last Sunday.,He plays football every afternoon. He _ basketball yesterday afternoon.,He does his homework every evening. He _ some reading last night.,动词原形、第三人称单数,动词过去式,got,played,did,They dont watch TV in the evening. They _ TV last night.,She doesnt play basketball after school. She _ basketball after school yesterday.,Do you go to school on foot every day? _ you _ to school on footyesterday.,Does he go to school by bus every day? _ he _to school by bus yesterday?,dont/ doesnt,do/ does,didnt,did,didnt watch,didnt play,Did,Did,go,go,一般现在时:句中be动词用am/is/are, 实义 动词用三单或原形,表示现在的状态或 现在经常反复发生的动作和行为。 时标:always usually often sometimes never every day on Sundays 现在进行时:句中动词用am/is/are +doing 形式,表示现在正在进行的动作。 时标: now at the moment listen look do sth. at+具体时刻 Its+具体时刻,一般过去时:句中be动词用was/were,实义动 词用动词过去式,表示过去某个时间发生的 动作或存在的状态也可表示过去反复出现 的动作(与频度副词usually, often等连用) I was nine years old in 2008. (过去某时间的状态) I went to Shanghai last year. (过去某时间发生的动作) I often did my homework at school. (过去反复出现的动作),我天天打篮球。 我正在打篮球。 我昨天打篮球。,I every day. I now. I yesterday.,play basketball,am playing basketball,played basketball,一般过去时,一般现在时,现在进行时,时标: (汉语翻译时常用“了”) yesterday (昨天) yesterday morning / afternoon / evening (昨天早上 / 下午 / 晚上) last night (昨晚) = yesterday evening last year / month / week (去年 / 上个月 / 上星期) the day before yesterday (前天) in+过去的年份或月份 (在年/在月) 时间段+ago (以前) just now (刚才) at that time=then (在那时) when + 过去时句子 (一般过去时时间状从),含be动词的过去时句式,肯定句 主语 + was / were + 表语. 否定句 主语 + was / were not + 表语. (wasnt/ werent) 一般疑问句 Was / Were + 主语 + 表语? 肯定回答 Yes, 代词 + was / were. 否定回答 No, 代词 + wasnt / werent. I _ a teacher last year. I _ a teacher last year. _ you a teacher last year? Yes, I _. / No, I _.,was,wasnt,Were,was,wasnt,肯定句 主语+动词过去式+宾语. I _(watch) TV last night. 否定句 主语+didnt+动词原形+宾语. I _(not watch) TV last night. 一般疑问句 Did+主语+动词原形+宾语? 肯定回答 Yes, 代词+did. 否定回答 No, 代词+didnt. _ you _(watch) TV last night? Yes, I _. / No, I _. 特殊疑问句 特殊疑问词+did+主语+动原? What _ you _(do) last night?,含实义动词的过去时句式,watched,didnt watch,Did watch,did,didnt,did do,动词一般过去时，表示过去发生事； 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； 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。,1.He visited his friends last night. 2.Tom took some photos two days ago. 3.We went for a walk yesterday. 4.I studied in Beijing in 1999. 5.They played soccer yesterday morning.,1.He visited his friends last night. .否定句He didnt visit his friends last night. 疑问句：Did he visit his friends last night? 肯定回答：Yes, he did. 否定回答：No, he didnt. 对划线提问：What did he do last night? 对划线提问：When did he visit his friends?,1.I_ ( play) soccer yesterday. 否定句： 疑问句： 肯定回答： 否定回答： 对划线提问: ： 对划线提问：,played,I didnt play soccer yesterday.,Did you play soccer yesterday?,Yes, I did.,No, I didnt.,What did you do yesyerday?,When did you play soccer?,2.Tom took some photos two days ago. 否定句: 疑问句： 肯定回答： 否定回答: 划线提问： 划线提问：,Tom didnt take any photos two days ago.,Did Tom take any photos two days ago?,Yes, he did.,No, he didnt.,What did Tom do two days ago?,When did Tom take any photos?,3.We_(go) for a walk yesterday. 4.I_(study) in Beijing in 1999.,went,studied,否定句,疑问句,肯定回答,否定回答,划线提问,划线提问,We didnt go for a walk yesterday.,Did you go for a walk yesterday?,Yes, we did.,No, we didnt.,What did you do yesterday?,When did you go for a walk?,I. 用适当的词填空,1. How _ your school trip? It was great. 2. How _ you yesterday? 3. Today is Monday. Yesterday _ Sunday. 4. What _ you do the day before yesterday? _ you ride a horse last week?,was,were,was,did,Did,根据句意，用括号内所给词的适当形式填空。 1. What did the _ (farm) say? 2. Carol _ (pick) some strawberries and _ (take) them home. 3. I _ (visit) my grandparents in the countryside. 4. I _ (watch) the stars at night. 5. _ (do) Carol take any photos?,farmer,picked,took,visited,watched,Did,6. _ he see any cows on the farm? Yes, he did. 7. Did he milk a cow on the farm? No, he _. 8. Were the strawberries good? Yes, they _. 9. Did you see any cows? Yes, I did. I _ quite a lot. 10. I _ the chickens last week.,Did,didnt,were,saw,fed,1. She often _ (go) to the park on weekends, but yesterday she _ (go) to the zoo. 2. Last week she _ (have) fun on a farm. 3. What _ they _ (do) on the school trip? They _ (ride) horses and _ (climb) the mountains.,I. 填入适当的词。,goes,went,had,did do,rode climbed,4. How _ their school trip? It _ interesting. _ she _ (go) fishing? Yes, she did. 5. _ Li Ming _ (pick) any strawberries? No, he didnt.,was,Did go,Did pick,was,