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1、单词词形变化规则一、复数(名词):1.一般情况下,直接加-s, 如:book-books,bag-bags,cat-cats,bed-beds2.以s.x.sh.ch结尾,加-es,如:bus-buses,box-boxes,brush-brushes,watch-watches3.以“辅音字母+y”结尾,变y为i,再加-es,如:family-families,strawberry-strawberries4.以“f或fe”结尾,变f或fe为v,再加-es,如:knife-knives5.不规则名词复数:man-men
2、,woman-women,policeman-policemen,policewoman-policewomen,mouse-mice child-children foot-feet,. tooth-teeth fish-fish,people-people,Chinese-Chinese, Japanese-Japanese二.第三人称单数(动词):1.一般情况下,直接加-s, 如:cook-cooks,milk-milks2.以s.x.sh.ch.o结尾,加-es, 如:guess-guesses
3、,wash-washes,watch-watches,go-goes3.以“辅音字母+y”结尾,变y为i,再加-es,如:study-studies三.现在分词(动词):1.一般情况下,直接加ing, 如:cook-cooking2.以不发音的e结尾,去e加ing,如:make-making,taste-tasting3.如果末尾是一个元音字母和一个辅音字母,双写末尾的辅音字母,再加ing,如:run-running,stop-stopping四.过去式和过去分词(动词):1.一般在动词末尾加-ed,如:pul
4、l-pulled,cook-cooked2.结尾是e加d,如:taste-tasted3.末尾只有一个元音字母和一个辅音字母的重读闭音节,应双写末尾的辅音字母,再加-ed,如:stop-stopped4.以“辅音字母+y”结尾的,变y为i, 再加-ed,如:study-studied5.不规则动词过去式和过去分词:(1)awake-awoke-awoken(2)be(am,is,are)-was/were-been(3)bear-bore-born(4)begin-began-begun(5)blow-blew-blow
5、n(6)break-broke-broken(7)choose-chose-chosen(8)do-did-done(9)draw-drew-drawn(10)drink-drank-drunk(11)drive-drove-driven(12)eat-ate-eaten(13)fall-fell-fallen(14)fly-flew-flow(15)forget-forgot-forgotten(16)forgive-forgave-forgiven(17)freeze-froze-frozen(18)give-gav
6、e-given(19)get-got-gotten(20)go-went-gone(21)grow-grew-grown(22)hide-hid-hidden(23)know-knew-known(24)lie-lay-lain(25)mistake-mistook-mistaken(26)overeat-overate-overeaten(27)prove-proved-proven(28)ride-rode-ridden(29)ring-rang-rung(30)rise-rose-risen(31)see-saw-
7、seen(32)shake-shook-shaken(33)show-showed-shown(34)sing-sang-sung(35)sink-sank-sunk(36)speak-spoke-spoken(37)steal-stole-stolen(38)swim-swam-swum(39)take-took-taken(40)throw-threw-thrown(41)wake-woke-woken(42)wear-wore-worn(43)write-wrote-written五.比较级和最高级(形容词):1.
8、一般在词尾加er/est;2.以字母e结尾,加r/st;3.以一个元音字母和一个辅音字母结尾,应双写末尾的辅音字母,再加er/st;4.以“辅音字母+y”结尾,先把y变i,再加er/st5.部分双音节词和多音节词,在单词前面加more或mostimportant moreimportant mostimport