元音是發音時氣流不受阻礙、聲帶振動的音，如a、o；輔音是氣流通過口腔或喉部受到阻礙而形成的音，如b、s。二者共同構成語音的基本單位。

元音字母就五個A E I O U

a e i o u 是元音,其他都是輔音

元音和輔音 英語中音素分為元音音素和輔音音素兩大類。其中元音音素20個，輔音音素24個。 元音：發音時聲帶振動，呼出的氣流通過口腔時不受阻礙，這樣形成的語音稱作元音。元音發音響亮，口腔中氣流不受阻礙，是構成音節的主要音。英語中有20個元音。 輔音：不論聲帶振動與否，發聲時呼出的氣流通過口腔或鼻腔時受到一定阻礙，這樣的語音稱為輔音。輔音發音不響亮，口腔中氣流受到阻礙，不是構成音節的主要音。英語中有24個輔音。（有的書將[ts]、[dz]、[tr]、[dr] 也歸為輔音，即有28個輔音，共48個音素。） 1. 元音： 1) [I:] sea, he, see, piece, ceiling 2) [I] sit, build, miss, myth 3) [e] bed, desk, head, 4) [A] bad, land, bank, stamp 5) [B:] car, fast, class, plant, calm, aunt 6) [C] hot, want 7) [C:] door, more, sport, ball, warm, author, court, bought, caught 8) [U:] good, who, blue, soup, 9) [U] look, put, women, could 10) [Q] cup, come, blood, rough 11) [[:] girl, work, serve, nurse 12) [[] cadre, ago, forget, polite, dollar, doctor, famous, Saturday 13) [ei] cake, they, play, eight, great, 14) [ai] bike, die, neither, light, try, find, height, eye 15) [Ci] boy, oil 16) [[U] phone, cold, boat, soul, grow 17) [aU] house, town 18) [i[] dear, idea, deer, here, fierce, 19) [Z[] pear, care, there, fair 20) [u[] tour, poor 2. 輔音 1) [p] pen, 2) [b] bed, comb 3) [t] tell, 4) [d ] day, played, wanted 5) [k] cold, sky, quick, school, back, accept, box 6) [g] big, go, guess, language 7) [m] man 8) [n] nine, knife, autumn 9) [N] bank, uncle, English, sing, 10) [ l ] land, world 11) [r] read, write, 12) [f] five, cough, laugh 13) [v] voice, of 14) [W] think, 15) [T] this, bathe 16) [s] sit, miss, science, case, scarf 17) [z] zoo, close 18) [F] sure, she, social, nation 19) [V] pleasure 20) [h] hot, who, hour 21) [w] wall, what, answer 22) [j] yes 23) [tF] child, teach, catch 24) [dV] joke, bridge 25) [ts] boats 26) [dz] goods 27) [tr] tree 28) [dr] dream