文档介绍:英语基础知识大全
名词的变化规律
一般情况下加s (如 cats, dogs, friends, books, papers 等)
以 s, x, ch, sh 结尾的力口 es 佼口 buses, boxes, matches, f动词三单形式的变化规律
直接在动词后加 s ,如want — wants,work — works , know — knows ,help— helps, get
— gets。
以 s, x, ch, sh 结尾的动词在后面加es ,如 watch— watches, catch— catches。
以辅音字母加o 结尾加es ,如go— goes, do— does。
以辅音字母加y 结尾,把 y 改为 i 再加 es ,如study— studies, carry— carries, fly— flies ,
worry — worries
以元音字母加y 结尾,直接加s ,如play— plays.
不规则变化
二、动词 ing 的变化规律:
. 英语动词加-ing, 通常是在原形词尾直接加 -ing 构成: cough— coughing , climb — climbing ,
stand— standing, fight — fighting
.以 -e 结尾的动词
1 )如果动词原形以一辅音加一不发音的 -e 结尾,一般应去掉e 再加 ing :
write — writing , hope— hoping , care— caring , stare— staring , plane— plan-ing , have— having ,
save— saving, produce—producing, breathe—breathing (2) 以-ie 结尾的动词应先将e去掉,
将 i 变成 y 然后再加 -ing : die— dying , tie— tying , vie— vying , lie— lying
3 )以 -ee,- oe,- ye 结尾的动词加-ing 时应保留词尾e:
see— seeing, flee— fleeing , free— freeing , agree— agreeing, hoe— hoeing , dye— dyeing , eye
— eyeing
(4)以 -ue 结尾的动词大多应先去e 再加 -ing :
sue— suing, imbue— imbuing , construe— construing , pursue— pursuing , rue— ruing 有时,词 尾 e 可去掉也可保留: glue — gluing 或 glueing , cue— cuing 或 cueing , blue— blueing
或 bluing , true— truing 或 trueing , clue— clueing 或 cluing
3.以一元音加一辅音结尾的动词
( 1 )如果动词最后一音节为重读闭音节,最后一个字母需要重复:
run— running , stop— stopping , hop— hopping , plan— planning , star— starring ,