1.3/4 的英文怎么写
基数词+序数词
threequarter(s)
四分之三
two-thirds [ 'tu:'θə:dz ]
num. 三分之二
英语分数的表示法:)~~
一、用“基数词+序数词”表示
分数在英语中通常是借助于基数词和序数词来共同表达的。其中基数词表示分子,序数词表示分母。
如:
1.The centimeter is one-tenth of the decimeter or one-hundredth of the meter.厘米是分米的十分之一,或者说是米的百分之一。
2.However,the number of boys will bea third or less than the girls in the class.但是,班里男生的人数将比女生少三分之一或更少。
从以上例子可以看出:分子除用one外,也可用a;如果分子大于1,分母要用复数形式。但是,1/2不能说a(one)second,而要说a(one)half。例如:
3.The sum of one half,one third and one fourth of a certain number is 13.某数的1/2,1/3和1/4的和是13。
1/4和3/4可以说a(one)fourth和three fourths,但常用a quarter和three quarters表示。应该注意的是,分数修饰名词时,若该名词是不可数名词只能用单数;若是可数名词,用单数或复数均可。但是,若它们在句子中作主语,则谓语动词是用单数还是复数取决于名词,即与分数所修饰的名词保持一致。例如:
4.Only one-fifth of air consists of oxygen.氧气只占空气的1/5。
5.About two thirds of the students attendthe meeting.大约2/3的学生都参加了会议。
带分数也是常见的英语数词表达。所谓带分数,实际上是“整数+分数”,表达时分而述之,只是整数部分与分数部分要用连词 and连接。当带分数修饰名词时,该名词通常是复数,但若名词置于整数one或a之后,则用单数。“带分数+名词”作主语时,谓语动词根据临近原则要用复数。例如:
6.You should finish the work within one and a fourth hours.你应在1.25小时内完成工作。
7.The atom breaks up in a minute and a quarter.原子在1.25分钟内裂变。
二、用per cent等表示
表示百分之一可以说one(a)hundredth,但更常用one percent或per cent,即用百分数表示法来表达。例如:
8.Our bodies are 65percent water.我们人体含65%水分。
9.Seventy-five percent of the earth'ssur- face is covered by water.地球表面的75%被水覆盖着。
10.Eighty-five percent of the students in English department are girls.英语系85%的学生是女生。
2.1到30的序数词英文怎么写
首先搞清楚基数词和序数词,
基数词,表示数量,1,2,3,表示多少个
序数词,表示顺序,第1,第2,第3,表示第几个
1-30的序数词,前3个是特殊情况,需要单独记忆,从4开始往后,基本上都是在基数词的词根后面加th,但是词根变化较多,尤其结尾部分,要注意。
还有,所有序数词之前,都要加the。
1-10,first, second, third,fourth,fifth,sixth,seventh,eighth,ninth,tenth
11-20,eleventh,twelfth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth,twentieth
21-30,twenty first, twenty second,twenty third,twenty-fourth,twenty-fifth,twenth-sixth, twenty-seventh,twenty-eighth,twenty-ninth,thirtieth
3.序数词1~30的英文怎样写
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty 按顺序就是了 呵呵 ··。
4.19用英文怎么说
one 1 two 2 three 3 four 4 five 5 six 6 seven 7 eight 8 nine 9 ten 10 eleven 11 twelve 12 thirteen 13 fourteen 14 fifteen 15 sixteen 16 seventeen 17 eighteen 18 nineteen 19 twenty 20 twenty-one 21 twenty-two 22 twenty-three 23 twenty-four 24 twenty-five 25 twenty-six 26 twenty-seven 27 twenty-eight 28 twenty-nine 29 thirty 30 - -||终于打完了。
5.英语1到10序数词和基数词怎么写
词:回1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten
序数词:第答1 first 1st
第2 second 2nd
第3 third 3rd
第4 fourth 4th
第5 fifth 5th
第6 sixth 6th
第7 seventh 7th
第8 eighth 8th
第9 ninth 9th
第10 tenth 10th
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