動詞第三人稱單數(shù)變化規(guī)則如下

1、高三英語復習動詞第三人稱單數(shù)變化規(guī)則例如： works gets says reads1) 一般情況下，動詞后面直接加-S.wash-washes2) 以ch,sh,s,x 或0結(jié)尾的動詞,在后面加-es。 例如：go-goesteach-,teachebrush-brushes ,catch-catches ,do-does ,fix -fixes3）以輔音字母+ y結(jié)尾的動詞，把y變?yōu)閕再加-es.例如：study-studiestry-triescry-criescarry-carries ,fly-flies現(xiàn)在分詞變化規(guī)則1. 直接 + ing( 例: sleep+ing sleep

2、ing)2. 去 e+ing( 例: bite-e+ing biting)3重讀閉音節(jié)，且末尾只有1個輔音字母，雙寫輔音字母+ing(例：sit+t+ingsitti ng),tie-tying4.特殊變化：die-dying,lie-lying 3、現(xiàn)在分詞的變化規(guī)則：ing(1) 一般情況下，直接在動詞后加-work - worki ngslee p slee pingstudy study ing(2) 動詞以不發(fā)音的一e結(jié)尾，要去一e加一ingtake tak ingmake maki ngdance dancing(3) 重讀閉音節(jié)的動詞，要雙寫詞尾字母，再加ingcut cutt

3、ingput pu tt ingbeg inbeg inning(4) 以一ie結(jié)尾的動詞，把變成y再加一 inglie lyi ngtie tyi ng die dying比較級最咼級important difficultmore imp orta ntmore difficultmost imp orta ntmost difficultin teresti ngusefulmore in terest ingmore usefulmost in terest ingmost usefulI.學會下列形容詞的比較級和最高級: 原級比較級最咼級1. talltallertalleststro

4、 ng oldstro ngerolderstron gestoldest2. largefinelargerfinerlargestfin est形容詞的比較級和最高級變化形式規(guī)則如下構(gòu)成法原級比較級最高級一般單音節(jié)詞末尾加er和eststro ngstron gerstro ngest單音節(jié)詞如果以e結(jié)尾，只加 r和ststra ngestra ngerstra ngest閉音節(jié)單音節(jié)詞如末尾只有一個輔音字sad big hotsadder bigger hottersaddest biggest hottest母，須先雙寫這個輔音字母，再加er和 est 少數(shù)以 y, er（或 ure）

5、,ow, ble結(jié)尾的雙音節(jié)詞，末尾加 er和 est（以/結(jié)尾的詞，女口y前是輔音字母，把y變成，再加 er和 est，以 e結(jié)尾的詞仍加r 和 st）an gry clever n arrow noblean grier cleverer n arrower n obleran grest cleverest n arrowest n oblest其他雙音節(jié)和多音節(jié)詞都在前面加單詞more 和 mostdiffere ntmore differe ntmost differe ntb.其他詞都在前面加more, most構(gòu)成比較級及最高級: 原級latelaterlatest3. bigb

6、iggerbiggesthothotterhottestthinthinnerthi nn est4. easyeasiereasiestbusybusierbusiesthappyhapp ierhapp iest5. valuablemore valuablemost valuabledan gerousmore dan gerousmost dan gerouscomfortablemore comfortable most comfortable1.有幾個形容詞有特殊的比較級和最高級形式:原級比較級最咼級goodwell betterbestbadill worseworstmanym

7、uch moremostlittlelessleastfar fartherfurther farthestfurthestold olderelder oldesteldestle結(jié)尾的詞,er,原級比較級最咼級n arrown arrowern arrowestclevercleverercleverestsim piesim piersimp lestcom moncom monercom monest3.也有少數(shù)單音節(jié)詞可以加more和most的辦法構(gòu)成比較級和最高級:原級比較級最咼級P leasedmore pl easedmost p leasedtiredmore tiredmo

8、st tiredgladmore gladmost glad2.雙音節(jié)詞除了以“輔音+ y”結(jié)尾的詞外，還有以ow, 和個別其他雙音節(jié)詞，可以用加詞尾的辦法構(gòu)成比較級和最高級:名詞的復數(shù)形式構(gòu)成方法例詞以 S、 x、 sh、在詞尾加-s1.ch結(jié)尾的名詞后加-es2.如詞尾是e,只 如詞尾為 -f或-fe , 則一般變?yōu)?ves 以輔音+y結(jié)尾的名詞，變y為i再加-es以元音+y結(jié)尾的名詞，加-s以輔音+0結(jié)尾的名詞，加-es以元音+0結(jié)尾的名詞，加-s以-th結(jié)尾的名詞，加-s英語里有一些名詞的復數(shù)形式不是以詞尾-s或-es構(gòu)成,構(gòu)成方法例詞變內(nèi)部元音foot u feeti:man men

9、 e mouse au mice ai woma n wome n e 詞尾加-enox oxe n（公牛）child ai childre n i 形式不變（通形名詞-單、復數(shù)同形）deerdeer fish fishsheepsheep集合名詞（只有復數(shù)，沒有單數(shù)。）trouserspeople（人，人民）glasses（眼鏡）名詞做定語1.apple tree apple1.只在后面名詞加復數(shù)trees2.man, woman隨之后面的名詞2.man doctor me而變化，后單其單，后復其復。doctors3.sport作定語永遠用作復數(shù)。3.sp ortsshopsp orts s

10、hoes表示國籍的名詞Chin ese -Chin ese（中日不變，英法變，其余詞后加 s）JapaneseJapaneseEn glishma n En glishme nFren chman Fren chme nAmerica nAmerica ns其它名詞復數(shù)的規(guī)則變化1）以y結(jié)尾的專有名詞，或元音字母+y結(jié)尾的名詞變復數(shù)時，直接加s變復數(shù): 如:two Marys the Henrysmonkey-mon keys holiday-holidays比較： 層樓：storey -storeys story-stories2）以o結(jié)尾的名詞，變復數(shù)時：a. 力卩 s，如： photo-

11、photos piano-pianosradio-radios zoo-zoos；b.c.力卩 es，如：potato-potatoes tomato-tomatoes 均可，如：zero-zeros / zeroes3）以f或fe結(jié)尾的名詞變復數(shù)時：a.力卩 s，如： belief-beliefs roof-roofs safe-safes gulf-gulfs ；b. 去 f,fe力卩 ves，如：half-halveskni fe-k ni ves leaf-leaves wolf-wolves wife-wives life-lives thief-thievesc. 均可,如:han

12、dkerchief:han dkerchiefs / han dkerchieves動詞變名詞1.在詞尾加er,r ,雙寫加er或or:A. play _ player, sing _ singer, wait _ waiter , find _ finder, thrill _ thriller，hunt-hunterB. write _ writer, drive _ driver, come _ comer, explore _ explorer dance _ dancerC. run _ runner, win _ winner, rob _ robber, traval _ tra

13、vallerD. visit _ visitor, invent _ inventor,act-actor,advise-advisor2. 在詞尾加 ing:build _ building, draw _ drawing, end _ ending, begin _ beginning, swim _ swimming ， skate _ skating, feel _ feeling, say _ saying, mean _ meaning, cross _ crossing ， surf _ surfing, paint _ painting 3. 在詞尾加 ion 或去 e 加 i

14、on:A. decide _ decision, describe _ description, produce _ production, celebrate _ celebration,pronounce _ pronunciation, decoratedecorationgraduate _ graduation,frustrate - frustration,pollute _ pollution contribute _ contribution, congratulate _ congratulation, educate _ education ， organize _ orgnization,donate _ donation, appreciate _ appreciation ，operate _ operation, invite _ invitation B. discuss _ discussion, invent _ invention, attract _ attraction impress _ impression,inject _ injection,instruct _ instruction 4.其它：_ death, succeed _ success, weigh _