动词过去式变化及ed的发音规则.ppt

动词过去式变化规则及ed的发音规则,动词过去式变化规则,一、规则变化1、一般情况下，动词词尾加-ed,如：workworked playplayed wantwanted askasked2、以不发音的-e结尾动词，动词词尾加-d,如：livelived movemoved tastetasted3、以“辅音字母+y”结尾的动词，把y改成i,加ed,如：studystudies trytried copycopied carrycarried4、重读闭音节动词，双写词尾辅音字母，再加ed,如：stopstopped,二、不规则变化is amwas arewere dodid have hashad gowent sitsat singsang drinkdrank givegave writewrote riderode drivedrove drawdrew growgrew knowknew getgot forgetforgot keepkept sleepslept cancould shallshould willwould过去式与动词原形一样：letlet mustmust putput readread,什么是清辅音和浊辅音？,1.辅音包括清辅音和浊辅音两大类。发音时声带不震动、送气的叫清辅音,pp、tt、kk、ff、th、ss、sh、cht、cts、trtr，再加上hh，合计12个。；2.发音时声带震动、不送气的叫浊辅音,bb、dd、gg、vv、the、zz、dsdz、drdrr/r/再加鼻音mm、nning边音ll半元音jj、ww合计16个。,动词过去式构成读音,动词过去式构成读音,动词过去式构成读音,动词过去式构成读音,