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1、英语动词过去式的变化&发音规则规则动词的过去式由“动词原形+-ed”构成,具体变化有: 1. 直接在词尾加-ed。如: want—wanted, work—worked, need—needed, clean—cleaned 2. 以不发音的e结尾的在词尾加-d。如:like—liked, live—lived, use—used, move—moved 3. 以一个元音字母加一个辅音字母结尾的重读闭音节动词,先双写结尾的辅音字母,再加-ed。如:stop—stopped, trip—tripped 4. 以辅音字母加y结尾的动词,
2、先把y变成i,再加-ed。如:study—studied, carry—carried, hurry—hurried, marry—married 不规则动词的过去式大体上归纳有以下六条(仅限参考):1. 以t结尾的词,过去式与原形相同。如:put—put, let—let, cut—cut, beat—beat 2. 以d结尾的词,把d变成t。如:build—built, lend—lent, send—sent, spend—spent 3. 以n结尾的词,在词后加t。如:mean—meant, burn—burnt, lear
3、n—learnt 4. 以ow / aw结尾的词,把ow / aw变成ew。如:blow—blew, draw—drew, know—knew, grow—grew 5. 含有双写字母的词,将双写改为单写,在词尾加t。如:keep—kept, sleep—slept, feel—felt, smell—smelt 6. 含有元音字母o / i的词,将o / i变成a。如:sing—sang, give—gave, sit—sat, drink—drank规则动词词尾加-ed有三种读音: 1. 在清辅音后读作[t]。如:asked,
4、helped, watched, stopped 2. 在浊辅音和元音后读作[d]。如:enjoyed, studied, moved, called 3. 在t / d后读作[id]。如:wanted, needed Do的用途作用一:定义do do作实义动词时,有do,does,did,done,doing五种形式,还有及物、不及物之分。如: 1.vt."做;研究;整理;完成"。如: ①Theoldmandoesanhourofsporteveryday. ②Shedidherhomeworkathomelastnigh
5、t. ③MotherwasdoingthecookingwhenIreachedhome. ④Haveyoudonetheexercisesyet? 2.vi."行动;工作;进展;足够"。如: ①KatedoesverywellinherChinese. ②Howdoyoudo? ③Welldone!④Thatwilldo.作用二:助动do do作助动词时,只有do,does,did三种形式,无词义,限用于含行为动词的一般现在时和一般过去时两种时态的否定句和疑问句中。如: ①Theydon'thaveanyticke
6、tsfortonight'sconcert. ②Katestayedathomelastnight,didn'tshe? ③Howmanybooksdoesthelibraryhave?④Shedoesn'tdothewashingintheevening.作用三:替代do 为避免动词的重复,使语言简练,常以do,does,did替代前文所用的行为动词。如: ①Tomrunsmuchfasterthanyoudo. ②-Lucy,canyougetsomemoretea,please? -Sure.I'lldoitri
7、ghtaway. ②-Whobrokethecup? -Mimidid. ③-Ilikebananas. -Sodoeshe.作用四:语气do 为突出感情色彩,do常用于祈使句、强调句和倒装句中,以加强语气。如: ①Dobecareful. ②Don'ttellalie. ③Hedidcome. ④-Youoftengotothepark. -Sowedo.名词变复数规则小结!名词复数的规则变化其它名词复数的规则变化1) 以y结尾的专有名词,或元音字母+y 结尾的名词变复数时,直接加s变复数:如:twoMa
8、rys;theHenrys; monkey---monkeys;holiday---holidays;比较: storey---storeys;story---stories;2) 以o 结尾的名词,变复数时:a. 加s,如: pho