英語(yǔ)簡(jiǎn)單數(shù)學(xué)運(yùn)算的表達(dá)

1、和sum差difference積product商quotient 減減 minus （介詞，作形容詞講時(shí)，是（介詞，作形容詞講時(shí)，是“負(fù)負(fù)的的”的意思，相當(dāng)?shù)囊馑?，相?dāng)negative） subtract（動(dòng)詞，常與（動(dòng)詞，常與from連用）減去；連用）減去；扣除扣除 12 minus 7 leaves 5. 十二減去七剩五。十二減去七剩五。 If you subtract 3 from 5, you get 2. The temperature was minus 20 degrees. 溫度是零下溫度是零下20度。度。 乘乘 multiply（動(dòng)詞）（動(dòng)詞） 3 multiplied by

2、 5 is 15. 三乘五等于十五。三乘五等于十五。 除除 divide（動(dòng)詞）（動(dòng)詞） 15 divided by 3 is 5. 3 除除15等于等于5。 Three will not divide into eleven. 三除不盡十一。三除不盡十一。 加減乘除的名詞形式如下加減乘除的名詞形式如下 1. addition 加法加法 2. subtraction減法減法 3 .multiplication乘法乘法 4 .division除法除法 2+3=5 Two plus three is (equals, is equal to) five. 5-3=2 Five minus thre

3、e is equal to two. 32=6 Three times two is six. Three by two are six. 93=3 Nine divided by three makes three. (1)年號(hào)的讀法：年號(hào)的讀法： 1979nineteen seventy-nine or nineteen hundred(and) seventy-nine; (2)電話號(hào)碼、貨幣的讀法：電話號(hào)碼、貨幣的讀法： 1023one o two three; 1227one double two(or two two)seven;. 25four dollars(and)twent

4、y-five(cents); (3)小數(shù)點(diǎn)的讀法：小數(shù)點(diǎn)的讀法： 13.91thirteen decimal(point)nineone; 0.23=nought demical two three; Numbers cardinal numbers (基數(shù)詞基數(shù)詞) ordinal numbers (序數(shù)詞序數(shù)詞)基數(shù)詞基數(shù)詞(cardinal numbers)的構(gòu)成及用法的構(gòu)成及用法:1. 112的基數(shù)詞是獨(dú)立單詞的基數(shù)詞是獨(dú)立單詞,無(wú)規(guī)律可循。無(wú)規(guī)律可循。 eleven twelve2. 1319的基數(shù)詞一般在的基數(shù)詞一般在39對(duì)應(yīng)的基數(shù)詞后加對(duì)應(yīng)的基數(shù)詞后加-teen構(gòu)成，注意：構(gòu)成，

5、注意： thirteen fifteen eighteen3. 2090八個(gè)整十位數(shù)以后綴八個(gè)整十位數(shù)以后綴-ty結(jié)尾。注意：結(jié)尾。注意： twenty (20) thirty (30) forty (40) eighty (80)4. “幾十幾幾十幾“的基數(shù)詞由十位數(shù)和個(gè)位數(shù)中間加的基數(shù)詞由十位數(shù)和個(gè)位數(shù)中間加 連字符連字符 “-”構(gòu)成：構(gòu)成： twenty-nine ninety-seven5. 百位數(shù)和十位數(shù)之間，在英國(guó)英語(yǔ)要用百位數(shù)和十位數(shù)之間，在英國(guó)英語(yǔ)要用 “and”連接，連接，在美國(guó)一般不用。在美國(guó)一般不用。 three hundred and five four hundred

6、 and forty-five 6. 英語(yǔ)中英語(yǔ)中“萬(wàn)萬(wàn)” 及以上的表示法：及以上的表示法： 53,461 fifty-three thousand, six hundred and forty-one30,045,310 thirty million and forty-five thousand, three hundred and ten3,333,333,333 7. hundred, thousand, million,billion前有確切數(shù)詞時(shí)，前有確切數(shù)詞時(shí)， 遵循遵循“兩個(gè)無(wú)兩個(gè)無(wú)”原則，即無(wú)原則，即無(wú) “s”，無(wú)，無(wú)“of”。 three hundred people ni

7、ne million books8. 但但hundred, thousand, million, billion前無(wú)確切數(shù)詞前無(wú)確切數(shù)詞時(shí)，則遵循時(shí)，則遵循“兩個(gè)有兩個(gè)有”原則，即有原則，即有 “s”和和“of”。 many thousands of trees millions of birdstens of thousands of soldiers three hundreds people three hundred of books9.基數(shù)詞常與名詞連用構(gòu)成復(fù)合定語(yǔ)，中間要用連字符，基數(shù)詞常與名詞連用構(gòu)成復(fù)合定語(yǔ)，中間要用連字符，而且只用名詞的單數(shù)形式而且只用名詞的單數(shù)形式 an 8

8、oo-hundred-word composition a five-week holiday a 20-meter-tall building10. 基數(shù)詞可以表示年代、時(shí)刻、住所、房間、教室、基數(shù)詞可以表示年代、時(shí)刻、住所、房間、教室、電話號(hào)碼等。電話號(hào)碼等。in 1980s (1980s) = in nineteen eightiesPage three Room 403 at seven thirty in 1991 (in nineteen ninety-one) in ones fifties(在某人多歲的時(shí)候）在某人多歲的時(shí)候）注意下列習(xí)慣表達(dá)方式：注意下列習(xí)慣表達(dá)方式： hal

9、f an hour half a kilotwo and a half kilos = two kilos and a halfone or two days = one day or two eighty meters long one thousand miles away five meters deep ( wide/ tall/ high/long) five meters in depth / width/ height/ length序數(shù)詞序數(shù)詞(ordinal numbers)的構(gòu)成及用法的構(gòu)成及用法:1.基數(shù)詞基數(shù)詞 one, two , three 的序數(shù)詞分別為的序數(shù)詞分

10、別為: first, second, third ( 1st 2nd 3rd)2. 從第四到第十九的序數(shù)詞在基數(shù)詞后加從第四到第十九的序數(shù)詞在基數(shù)詞后加 “-th”注意：注意：fifth eighth ninth twelfth3. 十位整數(shù)基數(shù)詞的序數(shù)詞需將詞尾的十位整數(shù)基數(shù)詞的序數(shù)詞需將詞尾的 “y”改為改為 “i”，再加再加“eth” 構(gòu)成構(gòu)成 twenty twentieth forty fortieth ninety ninetieth4. “幾十幾幾十幾”的數(shù)及位數(shù)以上基數(shù)詞的序數(shù)詞的數(shù)及位數(shù)以上基數(shù)詞的序數(shù)詞只將個(gè)位變成序數(shù)詞即可只將個(gè)位變成序數(shù)詞即可one hundredtho

11、ne thousandth four hundred and thirty-second5. 日期的表達(dá)一般用序數(shù)詞日期的表達(dá)一般用序數(shù)詞月日月日March 8(th) 讀作：讀作：March the eighth6.用于最高級(jí)前表示用于最高級(jí)前表示“第二、第三第二、第三“ the second most useful the third largest city7. second, third 等與等與 “ a “連用，表示連用，表示”又一，再又一，再一一”再一次再一次a second time8. 在在世紀(jì)：世紀(jì)：in the twenty-first century in the nin

12、eteenth century概數(shù)的表示法概數(shù)的表示法1. over/above/ more than + 數(shù)字?jǐn)?shù)字 或：或：數(shù)字?jǐn)?shù)字 odd (多以上）多以上） over / more than two years (兩年多）兩年多）above twenty pounds (磅以上）磅以上）thirty odd years (30多年）多年）= more than 30 years2. below/ under/ less than +數(shù)字?jǐn)?shù)字（不足不到（不足不到，以內(nèi)）以內(nèi)） below six days under two hours less than 60 miles3. about

13、/ nearly/ some/ toward(s)/ more or less + 數(shù)字?jǐn)?shù)字?jǐn)?shù)字?jǐn)?shù)字or so / more or less (大約近大約近，上下左右）上下左右）about 90 yards nearly one tenth some fifty feet nine kilos or so more or less 20 meters =20 meters more or less“每隔每隔”與與“每逢每逢”的表示法：的表示法：兩種結(jié)構(gòu)：兩種結(jié)構(gòu)： every +基數(shù)詞基數(shù)詞 復(fù)數(shù)名詞復(fù)數(shù)名詞 every + 序數(shù)詞單數(shù)名詞序數(shù)詞單數(shù)名詞 every four days eve

14、ry fourth day每四天（每隔三天）每四天（每隔三天）every three linesevery third line每三行（每隔二行）每三行（每隔二行）每隔一天：每隔一天：every other dayevery two daysevery second dayThe bus runs every five minutes.One in every twenty students is to be chosen as the representative.一些數(shù)學(xué)公式、小數(shù)和分?jǐn)?shù)的表示法：一些數(shù)學(xué)公式、小數(shù)和分?jǐn)?shù)的表示法：7X3=21 Seven times / multiplied by three is twenty-one.93=3 Nine div