基数词3.doc

复数形式 有时两个复数形式的基数词连用可写为： hundreds of thousands of , tens of hundreds of 等等。They went to the theatre in twos and threes． 他们三三两两地来到了剧院。 （7）．表示人的不确切岁数或年代，用几十的复数形式表示。 He became a professor in his thirties． 他三十多岁时成为了教授。 She died of lung cancer in forties． 她四十来岁时死于肺癌。 It was in the 1960s． 那是在二十世纪六十年代。 基数词在句中可作主语、宾语、定语、表语、同位语。基数词主要表示事物或人物的个数。 The two happily opened the box． 两个人高兴地打开了盒子。（作主语） I need three altogether． 我总共需要三个。（作宾语） Four students are playing volleyball outside． 四个学生在外面打排球。（作定语） We are sixteen． 我们是16个人。（作表语） They three tried to finish the task before sunset． 他们三个人尽力想在日落前完成任务。（作同位语） 0 nought;zero;O 1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve 13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen 20 twenty 21 twenty-one 22 twenty-two 23 twenty-three 30 thirty 40 forty 50 fifty 60 sixty 70 seventy 80 eighty 90 ninety 100 one hundred 101 one hundred and one 156 one hundred and fifty-six 192 one hundred and ninety-two 200 two hundred 300 three hundred 400 four hundred 500 five hundred 600 six hundred 700 seven hundred 800 eight hundred 900 nine hundred 1,000 one thousand 1,001 one thousand and one 1,300 thirteen hundred;one thousand and three hundred 2,000 two thousand 2,034 two thousand and thirty-four 6,502 six thousand five hundred and two 38,000 thirty-eight thousand 45,672 forty-five thousand six hundred and seventy-two 500,000 five hundred thousand 1,000,000 one million 3,123,400 three million,one hundred and twenty-three thousand four hundred 8,000,000 eight million 47,000,000 forty-seven million 900,000,000 nine hundred million 1,000,000,000 a milliard,one milliard(美作:a billion,one billion) 1,050,000,000 one billion and fifty million 10,000,000,000 ten billion 200,000,000,000 two hundred billion 1,000,000,000,000 a billion,one billion(美作:a trillion,one trillion) 6,000,000,000,000 six million milliond (9). 表示分数时分子用基数词，分母用序数词： 1/3 one-third（三分之一） , 3/4 three-fourths（四分之三） , 3/37 thre