基数词记忆技巧序数词记忆口诀年份快速读法

基数词与序数词

主讲：董宇

基数词与序数词

（七年级下，P57 是基数词，P118是序数词））

six ----six teen ----six ty

seven ----seven teen ----seven ty eight ----eigh teen ----eigh ty nine ----nine teen ----nine ty 6~9 后直接加–teen ,

直接加-ty

基数词

66大顺

one ----eleven

two ----twelve ----twen ty three ----thir teen ----thir ty four ----four teen ----for ty five ----fif teen ----fif ty

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LV 名牌包

one ----e l e v e n

tw o ----tw elve ----tw enty

three ----thir teen ----thir ty four ----four teen ----for ty

five ----fif teen----fif ty

20:twenty 30：thirty 21: twenty –one 31: thirty-one 22: twenty –two 32:thirty-two 23 :twenty –three33:thirty-three 24:twenty –four 34:thirty-four 25:twenty –five 35…..

26:twenty –six 36……

27:twenty –seven 37……

28:twenty –eight 38…..

29:twenty –nine 39…….

40: forty 50:fifty 41:forty–one 55:….. 42:….. 57:…..

60:sixty 70:seventy 80:eighty 69:….. 73:……. 82:……. 64:….. 78:……. 85:……

90:ninety 96: 99:

100: one hundred

101: one hundred and one

104: one hundred and four

156: one hundred and fifty –six

204: two hundred and four

810: eight hundred and ten

107____ 145______

240_____ 721______

基数词变序数词

先记一下变序数词口诀

一、二、三，特殊记，th要从四加起；

八去t, 九去e ;

ve要用f替，ty变成tie , 再把th加上去。

如果遇到几十几，只变个位就可以。

one—first eleven--eleven th

two–second twel ve--twel fth three—third thirteen-thirteen th four—four th fourteen-fourteen th

fi ve–fi fth fifteen-fifteen th six—six th sixteen-sixteen th seven–seven th seventeen-seventeen th eight–eigh th eighteen-eighteen th nine–nin th nineteen-nineteen th ten–ten th一、二、三，特殊记，th要从四加起；

八去t, 九去e ;

ve要用f替，ty变成tie , 再把th加上去。

如果遇到几十几，只变个位就可以。

twen ty -twen tie th thirty –thir tie th forty —for tie th sixty —six tie th

seventy —seven tie th eighty –eigh tie th ninety –nine tie th

one hundred –one hundred th

一、二、三，特殊记，th 要从四加起；

八去t, 九去e ;

ve 要用f 替，ty 变成tie , 再把th 加上去。

如果遇到几十几，只变个位就可以。

twenty-one twenty-first twenty-two twenty-second twenty-three twenty-third twenty-four twenty-fourth twenty-five twenty-fifth twenty –six twenty-sixth twenty-seven twenty-seventh twenty-eight twenty-eighth twenty-nine twenty –ninth

一、二、三，特殊记，

th 要从四加起；八去t, 九去e ;ve 要用f 替，ty 变成tie , 再把th 加上去。

如果遇到几十几，只变个位就可以。

first—1st thirteenth –13th second –2nd fourth–14th

third--3rd fifteenth—15th fourth--4th sixteenth—16th

fifth–5th seventh –17th

sixth–6th eighteenth—18th seventh –7th nineteenth—19th eighth –8th twenty–20ty

ninth–9th twenty-first --21st tenth–10th twenty-second --22nd eleventh –11th twenty-third --23rd twelfth --12th twenty-four --24th

twenty-fifth —25th eightieth—80th twenty-sixth –26th ninetieth—90th twenty-seventh 27th one hundredth—100th twenty-eighth 28th

twenty-ninth 29th

thirtieth 30th

fortieth 40th

fiftieth 50th

sixtieth 60th seventieth 70th

补全P57

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