偶看新闻arya fae:小学所学四大时态的区分
来源：百度文库 编辑：偶看新闻 时间：2024/04/30 11:27:42
小学所学四大时态的区分
1.一般现在时：连用的时间状语常有always, often, usually，sometimes, every day(week…)，on Sundays， most of the time, in spring等
有“行为动词”时，当主语是第三人称单数时，肯定句式中动词用第三人称单数形式。借助do,does构成问句和否定句时，动词要用原形。
无“行为动词”时，要借助“be”构成句子。
(1) run—runs;dance—dances(2)以s,sh,ch,o结尾的加es如：do—does;go—goes;wash—washes;catch—catches
(3)以辅音字母加y结尾的改y为i加es如：study—studies; carry—carries;
2.一般过去时：连用的时间状语常有yesterday, last…, …ago, just now，a moment ago等
有be动词的句子，过去式直接将be动词改为was,were
有行为动词的句子，改成否定句或者疑问句，要加did。有了did,动词过去式变为原形。
规则动词过去式的构成(1)直接在动词后加ed (2)以e结尾的直接加d (3) 以辅音字母加y结尾的改y为i加ed (4)双写词尾加ed 常用的有：
play-played;dance-danced;study-studied;carry-carried;sing-sang;drink-drank;swim-swam;sit-sat;
run-ran;come—came;eat-ate;write-wrote;am,is—was;are—were;do,does—did;have,has—had;
go—went;meet—met;sit—sat;see—saw;get—got;tell—told;take-took;sweep-swept;spend-spent;
know-knew;fly-flew;draw-drew;steal—stole;read—read;make—made;teach-taught;buy-bought;
find-found;say-said;see-saw;put-put, read-read,stop-stopped, plan-planned
3.现在进行时：连用的时间状语常有now, look, listen 等
结构：be+doing, 改成否定句直接在be后面加not, 改成一般疑问句be前调
现在分词构成(1)直接在动词后加ing如：sing—singing; ski—skiing;(2)双写词尾加ing如：swim—swimming;jog—jogging;run—running;sit-sitting;run-running;get-getting;
begin-beginning;travel-travelling;shopping;stopping；planning;putting (3)以不发音的e结尾的去e加ing如：ride—riding; dance—dancing; make—making;taste-tasting; take-taking
4.一般将来时：连用的时间状语常用tonight, tomorrow, the day after tomorrow, next …等
结构：be going to+动词原形 或者will+动词原形