动词的各种时态及变化规则
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动词的各种时态及变化规则
一、一般现在时
用法:1.现阶段经常性、习惯性动作;
2.目前的状态;
3.客观真理。
构成:主语是第三人称单数时,作谓语的行为动词要在词尾加-s(-es),其他人称和数用动词原形。
否定形式:am/is/are+ not;此时态的谓语动词若为行为动词,则在其前加don't,如主语为第三人称单数,则用doesn't,同时还原行为动词。
一般疑问句:把be动词放于句首;用助动词do提问,如主语为第三人称单数,则用does,同时,还原行为动词。
时间状语:always, usually, often, sometimes, every week (day, year,
month…), once a week, on Sundays
动词的变化规则
(1)一般直接在词尾+s runs likes
(2) 以s, sh, ch, x, o结尾的动词在词尾+es goes passes
(3) 以辅音字母+y结尾的动词,要把y变i+es
study ---studies try----tries
(4) 以元音字母+y结尾的动词,直接在后+s stays plays
二、现在进行时
用法:a. 表示现在( 指说话人说话时) 正在发生的事情。
b. 表示长期的或重复性的动作,说话时动作未必正在进行。
构成:主语+am / is / are + 动词的现在分词(即动词-ing 形式)
否定形式:主语+am / is / are + 动词的现在分词
一般疑问句:把am / is / are放于句首。
时间状语:these days, now, at the moment, look, listen.
现在分词的变化规则
(1).一般直接在动词词尾+ing reading
(2).以不发音e结尾的动词要把e去掉+ing live---living
(3).以重读闭音节的结尾且末尾只有一个辅音字母的动词,双写辅音字母再ing run---running 注:重读闭音节:辅+元+辅并且元音是单元音(4).特殊记忆的动词die---dying 死lie---lying 躺tie---tying 栓系
三、一般过去时
用法:过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。
构成:主语+动词的过去式。
否定形式:若谓语为was\ were, 或情态动词,则直接在其后加not; 若谓语为行为动词,则需要借助did+ not, 还原动词。
一般疑问句:若谓语为was\ were, 或情态动词,则直接将其提到主语前; 若谓语为行为动词,则需要借助did,并将其提到主语前,同时还原动词。时间状语:yesterday,this morning,the day before yesterday,in 1990,与ago连用的状语,two days ago。与last连用的时间状语,last
Sunday,last night。
动词的过去式形式
(1)一般直接在动词词尾+ed work---worked
(2)以e结尾的动词在词尾+d liked lived
(3)以重读闭音节的结尾且末尾只有一个辅音字母的动词,双写辅音字母再加ed stop---stopped
(4) 以辅音字母+y结尾的动词,要把y变i+ed study---studied
不规则动词过去式:
am, is- was are-were do-did see-saw say-said
give-gave get- got go-went come-came have-had,
eat-ate take-took run-ran sing-sang put-put,
make-made read-read write-wrote draw-drew drink-drank,
fly-flew ride-rode speak-spoke sweep-swept buy-bought swim-swam sit-sat bring--brought can-could cut-cut become-became begin-began feel-felt find-found
forget-forgot hear-heard keep-kept know-knew
learn-learnt (learned)leave-left let-let lose-lost
meet-met read-read sleep-slept speak-spoke take-took
teach-taught tell-told write-wrote wake-woke think-though
不规则动词变化表
1. A---A---A型(现在式、过去式和过去分词同形)
动词原形(现在式)过去式过去分词
cost cost cost 花费
cut cut cut 割,切
hit hit hit 打
let let let 让
put put put 放下
read read read 读
hurt hurt hurt 伤
2. A---A---B型(现在式和过去式同形)
beat beat beaten 打
3. A---B---A型(现在式和过去分词同形)
come came come 来
become became become 变
run ran run 跑
4. A ---B ---B型
(1)在动词原形后加一个辅音字母d或t构成过去式或过去分词。
burn burnt burnt 燃烧
learn learned/learnt learned/learnt 学习
mean meant meant 意思
hear heard heard 听见
(2)把动词原形的最后一个辅音字母“d”改为“t” 构成过去式或过去分词。Build built built 建筑
Lend lent lent 借给
lose lost lost 失去
send sent sent 送
spend spent spent 花费
(3)其他
pay paid paid 付
lay laid laid 下蛋
say said said 说
ring brought brought 带来
buy bought bought 买
think thought thought 想
sleep slept slept 睡
keep kept kept 保持
sweep swept swept 扫