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名词变复数s的发音规则一般情况下1.在清辅音后，如books[buks]2.在浊辅音和元音后发[z]，如pigs[pigz],trees[tri:z]3.在t,d后与前面的[t],[d]连起来一起读[ts]，[dz],如cats[kæts]，beds[bedz]清辅音共11个：[p][t][k][f][s][θ][ʃ][ts][tr][tʃ][h]浊辅音共17个：[b][d][g][v][z][ð][ʒ][dz][dr][dʒ][l][m][n][ŋ][j][w][r]4.以辅音字母s,sh,ch,x结尾的名词，在词尾加-es,发[iz]，所以在[s],[z],[ʃ],[ʒ],[dʒ],[tʃ]后发[iz]如buses[bʌsiz],blouses['blauziz],boxes[bɔksiz],dishes[diʃiz],bridges[bridʒiz],watches[wɔtʃiz]读出s的读音。规则动词过去式加ed后的发音规则1.在清辅音后面[t]，如：helped[helpt],passed[pɑ:st]2.在浊辅音和元音后面[d]，如：borrowed['bɔrəud]，moved[mu:vd]3.在[t]、[d]音后面[id]，如：wanted['wɔntid]，started[stɑ:tid]，needed[ni:did]，counted[kaʊntid]daystieshandspeachesboxesleaf-leavesthief-thieveskeysknife-knivescupsdressesdishesfaxesbandsblouseshero-heroespotato-potatoesbookshatssuitsdogsbagsbusesclassesshelf-shelveszoo-zoosphoto-photostobacco-tobaccosfisheswife-wiveskilo-kiloshousewife-housewivesfactory-factorieswatchesboy-boystoysbaby-babiesdayspiano-pianosarmy-armiesstory-storiesradio-radiostomato-tomatoes