英語怎么表示分?jǐn)?shù),小數(shù),百分?jǐn)?shù)

1、英語怎么表示分?jǐn)?shù)，小數(shù)，百分?jǐn)?shù)？一、小數(shù)(decimal小數(shù)點讀作point,小數(shù)點左邊按整數(shù)的基數(shù)詞(one, two, three .讀,小數(shù)點右邊依次用個位數(shù)的基數(shù)詞讀出。整數(shù)部分為零時,小數(shù)點可以省略不讀。當(dāng)小數(shù)大于1時,小數(shù)后面的名詞用復(fù)數(shù),小數(shù)小于1時,小數(shù)后面的名詞用單數(shù)。1. 小于1的小數(shù)小數(shù)點左邊的零讀做naught(英或zero(美,也可不讀。小數(shù)點右邊的小數(shù)部分按個位基數(shù)詞依次讀出。在小數(shù)點后遇到零時,可讀做naught O zero,也可以讀做字母o的音,例如:數(shù)字表示法0.4naught O zero point four; point four0.128naught

2、 O zero point one two eight; point one two eight0.305naught O zero point three o five; point three zero five2. 大于1的小數(shù)小數(shù)點左邊的整數(shù)部分按整數(shù)讀法讀出。小數(shù)點右邊的小數(shù)部分按個位基數(shù)詞依次讀出。在小數(shù)點后遇到零時,可讀做naught O zero,也可以讀做字母o的音,例如:數(shù)字表示法5.02five point naught O zero two; five point o two8.004eight point naught naught O zero zero four;

3、 eight point o o four33.33thirty-three point three three3. 萬位和億位以上整數(shù)帶小數(shù)漢語里有萬位和億位以上整數(shù)帶小數(shù)的寫法和讀法。英語里沒有相應(yīng)的表示萬或億的單詞。譯成英語時,先將萬理解為十個千,將億理解為一百個百萬。然后將小數(shù)點左邊的整數(shù)部分和小數(shù)點右邊的小數(shù)部分做相應(yīng)的變化,例如:數(shù)字表示法8.3萬(83,000 eighty-three thousand723.64萬(7,236,400 seven mil-lion, two hundred and thirty-six thousand, four hundred17.03億(

4、1,703,000,000 one point seven o three billion; one billion, seven hundred and three million二、分?jǐn)?shù)(fraction英語中的分?jǐn)?shù)和漢語中的分?jǐn)?shù)表示法及讀法沒有很強(qiáng)的對應(yīng)性,需要認(rèn)真記憶。一般情況下,表示分?jǐn)?shù)時,分子要用基數(shù)詞,分母用序數(shù)詞(first, second, third .。如果分子大于1,分母必須用復(fù)數(shù)形式。1. 1/2或一半的表示方法,用one half或a half表示。例如:半英里one (a half mile或half one (a mile一個半小時an hour and a h

5、alf或one and a half hours (hour要用復(fù)數(shù)形式 2. 1/4的表示方法,用one (a quarter表示。如果分子大于1, quarter用復(fù)數(shù)形式。例如:1/4 one (a quarter 3/4three quarters3. 如果分子大于1,分母要用序數(shù)詞的復(fù)數(shù)形式。如果分?jǐn)?shù)大于1,要用整數(shù)部分+ and + 分?jǐn)?shù)表示,例如:1/3 one third或a third5/6 five sixths 8 3/5 eight and three fifths4. 比較復(fù)雜的分?jǐn)?shù)用over表示。分子(基數(shù)詞+ over + 分母(基數(shù)詞。注意這里分子、分母全用基數(shù)

6、詞表示。例如:51/80 fifty-one over eighty77/232 seventy-seven over two hundred and thirty-two5. 用分子(基數(shù)詞+ (out of + every + 分母(基數(shù)詞表示。這里分子、分母也全用基數(shù)詞表示。例如:1/7one of every seven5/9five out of every nine eg: An investigation showes that about two of every three students in this university are from China.一項調(diào)查表明這所

7、大學(xué)大約有三分之二的學(xué)生來自中國。6. 用分子(基數(shù)詞+ in + 分母(基數(shù)詞表示。這里分子、分母也全用基數(shù)詞表示。例如:1/3 one in three5/6 five in sixeg: Only about one in five books was written for children ranged from seven to ten years old.只有大約五分之一的書是為七到十歲的兒童寫的。7. 用表示減少意義的動詞或詞組+ 倍數(shù)表示減少了n-1/n。例如:eg: The time for the whole journey is shortened 3 times. 整

8、個行程的時間縮短了三分之二(或縮短到原來的三分之一。8. 當(dāng)分?jǐn)?shù)后面接名詞時,如果分?jǐn)?shù)表示的值大于1,名詞用復(fù)數(shù)；如果小于1,名詞用單數(shù)。3 3/5 kilograms 三又五分之三千克(讀作three and three fifths kilograms4/5 meter 五分之四米(讀作four fifths meter5/6 inch 六分之五英寸(讀作five sixths inch三、百分?jǐn)?shù)(per cent百分號讀作percent (per cent,無復(fù)數(shù)形式,數(shù)詞要用基數(shù)詞,應(yīng)用時常與by連用。例如:數(shù)字表示法6%six percent0.58%(naught point five eight percent200%two hundred percentThe output of petroleum went up by twenty percent.石油產(chǎn)量增長了20。The price of food was reduced by ten percent. 食品的價格下降了10。The loss of electricity has been reduced to less than thirty percent.電的損耗減少到30以下。注意:由分?jǐn)?shù)(或百分?jǐn)?shù)+ of + 名詞構(gòu)成的名詞詞組作主語時,其后的動詞形式依of詞組中的名詞類別而定