一．一般现代时一．一般现在时主要描述经常会发生的动作、状态或不变的真理句末常出现every day/week/year/Monday , in the morning, 句中常有always, usually, often, sometimes1.组成:主语+be+名词(形容词)肯定句：I am a student. He is tall.否定句:在be 后加not. I am not a student. He is not tall.疑问句:be 动词提前到第一位Are you a student? Is he tall?Yes, I am. / No, I am not.Yes, he is. / No, he isn’t.2.主语+动词+地点+时间肯定句：We go to school on Monday./ He goes to the park on Sunday.否定句:主语+don’t/doesn’t’t+动词原形+地点+时间We don’t go to school on Monday.He doesn’t’t go to the park on Sunday.疑问句:在句首加do或doesDo you go to school on Monday? Yes, we do./ No, we don’t.Does he go to the park on Sunday? Yes, he does./ No, he doesn’t’t.3.动词单三变化: 在原单词末尾加s , 如:like –likes单词以o, sh, ch, s, x 结尾加es, 如:go –goes单词末尾为辅音+y结尾去y加ies 如:study- studies二．现在进行时现在进行时:主要叙述正在发生的事情。
句末常出现now, 句首常出现look, listen,in this photo 组成:主语+be +动词ing形式I am reading English. /They are swimming. /He is playing football.否定句:在be后加not. I am not reading English. / They are not swimming.He is not playing football.疑问句:将be 放到第一位Are you reading English? Yes, I am./ No, I am not.Are they swimming? Yes, they are. / No, they aren’t.Is he playing football? Yes, he i s. / No, he isn’t.动词变ing形式:1.在动词末尾加ing. 如:play- playing/do-doing2. 末尾有e 要去e加ing. 如:ride–riding/take-taking/make-making /have-having/dance-dancing/write-writing/come-coming/drive-driving3. 末尾以辅音元音辅音结尾双写末尾一个辅音如:swim-swimming / run-running四．一般过去时一般过去时:主要描述过去发生的事情. 句末常出现last night/week/Monday/year, yesterday, ago1.组成:主语+动词过去式She was a baby.It was a book about space travel.He spent about twenty-one hours in space.2.否定句:在be后加not 在普通动词前加didn’t 动词恢复原形。
She was not a baby.It was not a book about space travel.He didn’t spend about twenty-one hours in space.3.疑问句:提前be 动词或在句前加didWas she a baby?Was it a book about space travel?Did he spend about twenty-one hours in space?4.动词变过去式: 在原次末尾加ed 或d 如:play-played /like-liked 辅音加y 结尾去y加ied 如:study-studied 辅音元音辅音结尾双写最后一个字母加ed 如: stop-stopped特殊变化:can-could /do-did /eat-ate /go-went/ hit-hit/ put-put /sit-sat/come-came/get-got/ have-had /see-saw /begin-began/give-gave /win-won read-read am/is-was /are-were /run-ran /hear-heard /cut-cut /wake-woke/ fall-fell连系动词be是am, is, are三者的原形,一般不直接出现在句子中,而是以am, is, are的形式出现。
它们各有分工,而且随着主语的人称和数的变化而变化am最专一,始终跟着I转;are 跟you, we及表复数名词或复数意义的词连用;is的交际最广泛,is与“他、她、它”形影不离,至于名词单数,指示代词(this/that)都与is结下不解之缘 / 文档可自由编辑打印。