英语中基数序数分数小数读法.doc

分数 表示分数时，分子要用基数词，分母用序数词如果分子大于 1，分母必须用复数形式： 1／3→a（one）third 2／3→two thirds 1／4→a（one）quarter（或 fourth） 3／7→three sevenths 1／2→应读作 a（one）half ＊比较复杂的分数如：24／789，多读作 twenty four over seven hundred and eighty nine 小数 六又二分之一 six and a half 八又 2/3 eight and two thirds表示小数时，小数点前面的基数词和前面讲的基数词的读法相同；小数点后的数字则必须一一读出：0．0089→（zero ／naught）point zero zero eight nine 1．36 →one point three six 百分数 百分数由 percent 表示，百分号％读作 percent，应用时常与 by 连用 0．68 ％→zero point six eight percent 6％→ six percent 369％ →three hundred and sixty nine percent The output of steel went up by 20 percent．钢产量增长 20％。

The price of cotton was reduced by 20 percent．棉花的价格下降了 20％ The loss of water has been reduced to less than 30 percent．水的损耗减少到 30％以下英语中基数词,序数词,分数,小数和百分数的读法百分数的读法1.基数词的读法:A. 先说"几十", 再说 "几",中间用连字符 .如:23— twenty-three 89— eighty-nine B. 先说"几百", 再加 and, 再加末两位数(或末位数).如:223—two hundred and twenty-three416—four hundred and sixteen809—eight hundred and nineC. 1000 以上的数先从后向前数 ,每三位数加一","( 千分位);第一个"," 号前为 thousand; 第二个"," 号前为 million; 第三个 ","号前为 billion.如:1,001—one thousand and one4,000—four thousand9,743—nine thousand, seven hundred and forty-three174,301—a (one) hundred and seventy-four thousand, three hundred and one750,000,000— C. 1000 以上的数先从后向前数 ,每三位数加一","( 千分位);第一个"," 号前为 thousand; 第二个"," 号前为 million; 第三个 ","号前为 billion.如:1,001—one thousand and one4,000—four thousand9,743—nine thousand, seven hundred and forty-three174,301—a (one) hundred and seventy-four thousand, three hundred and one750,000,000— seven hundred and fifty million2.序数词的读法序数词一般以与之相应的基数词加词尾-th 构成,如:tenth(第十),但下面这些基数词在变序数词时, 有特别的地方.如:A. one — first two — secondthree— third five— fiftheight — eighth nine— ninthtwelve — twelfthB. 以-ty 结尾的词,要先变-y 为-i,再加-eth.如:twenty— twentieth forty—fortieth C. 以 one, two, three, five, nine 收尾的多位数词 ,要照第一条方法变 .如:twenty-one —twenty-firsttwenty-two — twenty-secondthirty-five — thirty-fifthninety-nine—ninetya hundred and fifty-three —a hundred and fifty-third。