Unit 3 Spring Begins from MarchPeriod 2JanuaryFebruaryMarchMayJanuary is the first month of the year
February is the second month of the year
March is the third month of the year
April is the fourth month of the year
May is the fifth month of the year
August is the eighth month of the year
September is the ninth month of the year
序数词（第一，第二…）December is the twelfth month of the year
one – first – 1sttwo – second – 2ndthree – third – 3rdfour – fourth – 4thfive – fifth – 5thsix – sixth – 6thseven – seventh – 7th…twenty-one – twenty-first – 21sttwenty-two – twenty-second – 22ndtwenty-three – twenty-third – 23ndtwenty-four – twenty-fourth – 24thtwenty-five – twenty-fifth – 25th…基数词 序数词基数词 序数词基变序，有规律，词尾都加“ th” ； 一二三，特殊记， 词尾字母“ t d d” ；八减 t,9 减 e ；f 要把 ve 换；ty 把 y 变成 i, 记住 th 前有个 e;要是遇到几十几， 只变个位就
