一、动词的分类：
1. 实义动词：表示动作或状态，在句中能做独立谓语。
she has a new friend from australia.
he takes the train every day.
we le**e for school at around seven.
2. 连系动词：不能独立作谓语，必须与表语一起构成谓语。
he is popular in school.
twins usually look the same.
trees turn green in spring.
3. 助动词：不能独立作谓语，只能和主要动词一起构成谓语，表示否定、疑问、时态或其他语法形式。
i don’t want to go for a drive.（否定）
we are playing basketball.（进行时态）
do you like tomatoes? （疑问）
4. 情态动词：不能独立作谓语，只能和主要动词一起构成谓语，表示说话人的语气和情态。情态动词一般没有人称和数的变化。
she can speak a little english.
you should go to college.
can you come to my party?
二、八大时态。
1. 一般现在时。
1) 一般现在时表示经常发生或习惯性的动作或状态及客观现实和普遍真理。一般现在时常以动词原形表示，但当主语是第三人称单数时，动词词尾加-s或-es。
2) 句型结构：主语＋v.（包括be动词）＋宾语＋…
she is an engineer.
he has breakfast at 6:00 every day.
3) 注意：
a) 一般现在时通常与always, often, usually, every day, sometimes, once a week 等时间状语连用。
i always watch tv at 8:00 in the evening.
he goes home once a week.
we usually do our homework at home.
b) 表客观现实或普遍真理。
the sun always rises in the east.
the light tr**els faster than the sound.
c) 表永远性的动作或状态。
he lives in the county.
4) 第三人称单数变化形式。
a) 一般情况动词在词尾加-s .
come---comes speak---speaks work---works live---lives
b) 以o, s, x, ch, sh结尾的单词在词后加-es.
do---does go---goes finish---finishes brush---brushes
fix---fixes pass---passes watch---watches
c) 以“辅音字母＋y”结尾的单词变y为i加-es.
study---studies carry---carries cry---cries
d) 以“元音字母＋y”结尾的单词直接加-s.
play---plays stay---stays
we do our homework at 9:00 every night.我们每天晚上九点做作业。
he goes to work at 7:00 every day.他每天七点去上班。
we often play basketball in the afternoon.我们经常下午打篮球。
the earth goes around the sun.地球围绕太阳转。
the train le**es at 6:00.火车六点出发。
5) 否定句和疑问句。
a) -he is an engineer.
---he isn’t an engineer.
---is he an engineer?
---yes, he is. /no, he isn’t.
b) -we get up at 7:30 in the morning.
---we don’t get up at 7:30 in the morning.
---do you get up at 7:30 in the morning?
---yes, we do. /no, we don’t.
c) -he likes music.
---he doesn’t like music.
---does he like music?
---yes, he does. /no, he doesn’t.
e) -what do you like?
---i like football.
---when does he play football?
---he plays football on weekends.
2．一般过去时。
1) 一般过去时表示发生在过去的动作或存在的状态，通常与表示过去的时间状语yesterday, last night, some years ago, in 1990, in those days.等连用。
i was a student six years ago.
i went to beijing last year.
they saw a film last night.
2) 句型结构：主语＋v.过去时＋宾语＋…
he was busy yesterday.
he moved his house last year.
he joined the army two years ago.
3) 否定句和疑问句。
a) -he was busy yesterday.
---he wasn’t busy.
---was he busy?
---yes, he was. /no, he wasn’t.
b) -he smoked last year.
---he didn’t smoke last year.
---did he smoke last year?
---yes, he did. /no, he didn’t.
c) -he joined the army in 1990.
---he didn’t join the army in 1990.
---did he join the army in 1990?
---yes, he did. /no, he didn’t.
d) -what did he do on weekends?
---he watched tv on weekends.
---when did you sleep last night?
---he slept at 11:00 last night.
4) 动词过去式变化规则。
a) 一般情况下的词加-ed.
work---worked call---called laugh---laughed
explain---explained finish---finished knock---knocked
b) 以不发音的字母e结尾的单词直接加-d .
live---lived change---changed graduate---graduated
smoke---smoked die---died drive---drove
c) 以“辅音字母＋y”结尾的单词，变y为i加-ed.
study---studied carry---carried cry---cried
try---tried marry---married
d) 以“元音字母＋y”结尾的单词直接加-ed.
play---played stay---stayed
e) 以“一个元音字母＋一个辅音字母”结尾的单词应先双写这个辅音字母然后再加-ed.
stop---stopped plan---planned pat---patted
f) 动词不规则变化：
do---did go---went come---came run---ran write---wrote
begin---began drink---drank keep---kept le**e---left sleep---slept
make---made lie---lay dig---dug eat---ate know---knew
cut---cut set---set let---let read---read hurt---hurt
3．一般将来时。
1) 表示将来发生的动作或存在的状态，常与表将来的时间状语tomorrow, the day after tomorrow, next sunday, soon, in a few days等连用。
2) 句型结构：主语＋will＋v.原形＋…（第一人称不用will用shall）
i shall go to shanghai tomorrow.
he will h**e lunch at 12:00.
英语各种时态结构
1 一般将来时 表示事情发生在将来或者将来的打算计划。常用的时间状语有 tomorrow tonight next in the future,this 等。肯定句 主语 be going to v.原 其他。否定句 主语 be not going to v.原 其他。一般疑问句 be 主语 goi...
英语各种时态通俗讲解
初中英语各种时态。一般现在时的用法。1.经常性或习惯性的动作，或者客观规律和真理。其时态特征词为often always sometimes never frequently every morning everyday every week和every year 等此类的词构成。其时态模式为第。一...
英语各种时态讲解与练习
现在完成时讲解。一 基本结构 主语 h e has 过去分词 done 肯定句 主语 h e has 过去分词 其他。否定句 主语 h e has not 过去分词 其他。一般疑问句 h e has 主语 过去分词 其他。特殊疑问句 特殊疑问词 一般疑问句 h e has 主语 过去分词 其他 二 ...