2的序数词用英语怎么写( 二 ) _序数词

4. 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
5. 英语序数词怎么写 1 first
2 second
3 third
4 fourth
5 fifth
6 sixth
7 seventh
8 eighth
9 ninth
10 tenth
11 eleventh
12 twelfth
13 thirteenth
14 fourteenth
15 fifteenth
16 sixteenth
17 seventeenth
18 eighteenth
19 nineteenth
20 twentieth
30 thirtieth
40 fortieth
50 fiftieth
60 sixtieth
70 seventieth
80 eightieth
90 ninetieth
6. 一到二十的序数词用英语怎么写 first
second
third
fourth
fifth
sixth
seventh
eighth
ninth
tenth
eleventh
twelfth
thirteenth
fourteenth
fifteenth
sixteenth
seventeenth
eighteenth
nineteenth
twentieth
7. 1~90的英文序数词怎么写 1到20为：
first、second、third、fourth、fifth、sixth、seventh、eighth、ninth、tenth、eleventh、twelfth、thirteenth、fourteenth、fifteenth、sixteenth、seventeenth、eighteenth、nineteenth、twentieth
21到40为：
twenty-first、twenty-second、twenty-third、twenty-fourth、twenty-fifth、twenty-sixth、twenty-seventh、twenty-eighth、twenty-ninth、thirtieth、thirty-first、thirty-second
thirty-third、thirty-fourth、thirty-fifth、thirty-sixth、thirty-seventh、thirty-eighth、thirty-ninth、fortieth
41到60为：
forty-first、forty-second、forty-third、forty-fourth、forty-fifth、forty-sixth、forty-seventh、forty-eighth、forty-ninth、fiftieth、fifty-first、fifty-second、fifty-third、fifty-fourth、fifty-fifth、fifty-sixth、fifty-seventh、fifty-eighth、fifty-ninth、sixtieth
61到80为：
sixty-first、sixty-second、sixty-third、sixty-fourth、sixty-fifth、sixty-sixth、sixty-seventh、sixty-eighth、sixty-ninth、seventieth、seventy-first、seventy-second、seventy-third
seventy-fourth、seventy-fifth、seventy-sixth、seventy-seventh、seventy-eighth、seventy-ninth、eightieth
81到99为：
eighty-first、eighty-second、eighty-third、eighty-fourth、eighty-fifth、eighty-sixth、eighty-seventh、eighty-eighth、eighty-ninth、ninetieth、ninety-first、ninety-second
ninety-third、ninety-fourth、ninety-fifth、ninety-sixth、ninety-seventh、ninety-eighth、ninety-ninth
扩展资料
在英语中，使用序数词时前面要加定冠词 the，但是，在下面的情况下则不加 the:
1.当序数词前有形容词性物主代词或名词所有格修饰时，序数词前不用 the 。
例句：Mother was my first teacher in my life.妈妈是我生命中的第一个老师。
2.当表达分数时，序数词前不用 the 。
例句：One fifth of the students here are from the country. 这儿1/5的学生来自农村。
序数词变化规则口诀：
1.基变序，有规律，词尾加上-th.
2.一，二，三，特殊记，词尾字母t,d,d.
3.八去t，九除e,ve要用f替，ty将y变成i,th前面有个e.
4.若是碰到几十几，前用基来后用序.
5.整十基数变序数，先把ty变成tie.
6.要是遇上2位数，十位基数，个位序，th最后加上去.