英語中基數(shù)詞、序數(shù)詞、分?jǐn)?shù)、小數(shù)和百分?jǐn)?shù)的讀法

1、語法英語中基數(shù)詞、序數(shù)詞、分?jǐn)?shù)、小數(shù)和百分?jǐn)?shù)的寫法,讀法1.基數(shù)詞的讀法：基數(shù)詞的讀法：A. 23 89 B.223 416 809 twenty-three eighty-ninetwo hundred and twenty-threefour hundred and sixteeneight hundred and nine How to say? 百 千 萬 十萬 百萬 千萬 億 十億hundredthousand ten thousand one hundred thousandmillion ten million one thousand millionbillionC. 1000

2、以上的數(shù)從后向前數(shù)，每三位數(shù)加一以上的數(shù)從后向前數(shù)，每三位數(shù)加一“,”（千分位）；第一個(gè)（千分位）；第一個(gè)“,”號(hào)前為號(hào)前為thousand; 第二個(gè)第二個(gè)“,”號(hào)前為號(hào)前為million; 第三個(gè)第三個(gè)“,”號(hào)前為號(hào)前為billion。如：。如：1,001 4,000 9,743 174,301750,000,000 one thousand and onefour thousandnine thousand, seven hundred and forty-threea (one) hundred and seventy-four thousand, three hundred and o

3、neseven hundred and fifty million2.序數(shù)詞的讀法序數(shù)詞的讀法序數(shù)詞一般以與之相應(yīng)的基數(shù)詞加詞序數(shù)詞一般以與之相應(yīng)的基數(shù)詞加詞尾尾-th構(gòu)成，如：構(gòu)成，如：tenth（第十），但下（第十），但下面這些基數(shù)詞在變序數(shù)詞時(shí)，面這些基數(shù)詞在變序數(shù)詞時(shí)， 有特別有特別的地方。如：的地方。如：A. one two three five eight nine twelvefirstsecondthirdfiftheighthninthtwelfthB. 以以-ty結(jié)尾的詞，要先變結(jié)尾的詞，要先變-y為為-i，再加，再加-eth。如：如：twenty fortyC. 以以on

4、e, two, three, five, nine收尾的多位序數(shù)收尾的多位序數(shù)詞，要照第一條方法變。如：詞，要照第一條方法變。如：twenty-one twenty-two thirty-five ninety-ninea hundred and fifty-three twentiethfortiethtwenty-firsttwenty-secondthirty-fifthninety-nintha hundred and fifty-third基數(shù)詞（分子）序數(shù)詞（分母），基數(shù)詞（分子）序數(shù)詞（分母），分子大于，分母用復(fù)數(shù)如：分子大于，分母用復(fù)數(shù)如： 2/3 7/9 5/12 one-f

5、ourthtwo-thirdsseven-ninthsfive-twelfthstwo and three-fifthsthirty and seven-eighths3.分?jǐn)?shù)詞的讀法分?jǐn)?shù)詞的讀法2353078一些特殊的表達(dá)法一些特殊的表達(dá)法 a / one halfa / one quarterthree quarters小數(shù)的讀法小數(shù)的讀法7.8 0.4 0.03 0.125 14.397 seven point eight（zero） point four（zero） point zero three(zero) point one two fivefourteen point thre

6、e nine seven5) 百分?jǐn)?shù)的讀法百分?jǐn)?shù)的讀法27% 45% 86% twenty-seven percent forty-five percent eighty-six percentPractice Read the following numbers. 2/55/89/103/8two-fifths five-eighthsnine-tenthsthree-eighths 0.50.81.23796,000 point five point eight one point two threeseven hundred, ninety-six thousandFind the mi

7、stakes52,470,383- fifty-two million, four hundred and seventy, three hundred and eighty-three 100,000,000- hundred million365,528,462- three hundred and sixty-five million, five hundred and twenty-eight thousand, four hundred and sixty-two1,000,000,000- one thousand/ one billion52,470,383- fifty-two

8、 million, four hundred and seventy thousand, three hundred and eighty-three100,000,000- one hundred millionNow lets say:2/5 5/8 9/10 3/8 5/6 1/2 1/4 3/4practiceCount theseWhat is of 6,000,000?How much is 35,246,000 plus 12, 800,000?What is 25% of 200,000,000?How much is 260,408,396 plus 5,284,700?Wh

9、at is of 1,000,500,000?What is 10% of 800,000,000?3,000,00048,046,00050,000,000265,693,096750,375,00080,000,000 exercise 9 on P 93Answers:B B C BWork in pairWe writeWe say400,0002,000,0005,100,00048,000,50050,567,489123,456,789 four hundred thousand two million five million one hundred thousand forty-eight million, five hundred fifty million, five hundred and sixty-s