en, een, twenty, thirty, forty, fifty, sixty, seventy, eighty, y, hundred, twenty-one, forty-two, 序数词: first, second, third, fifth, eighth, ninth, twelfth, twentieth, thirtieth, twenty-first, thirty-second, forty-third 介词: at, in,on, under, near, behind, before, after, from, to, with ,of, for, about, around 动词: do, play, run, swim, sing, dance, paint, draw, brush, eat, learn, work, write, spell; meet , help, thank, excuse, afford, get,let, know, join, start , please, have, survey; wish ,want, think , speak, tell ,find; see, watch, look, listen, sound, like, love; lost, found, come, go, buy, sell, take, bring , ask, answer; is( am, are), can, may, need 其他词: plant, dog, friend, rock, star, dollar, address, word, letter, e-mail, life, anybody, yourself, dear, each, every, kind, list, example,