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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,（,1,）从,110,one,，,two,，,three,，,four,，,five,，,six,，,seven,，,eight,，,nine,，,ten,（,2,）从,1119 eleven,，,twelve,，,thirteen,，,fourteen,，,fifteen,，,sixteen,，,seventeen,，,eighteen,，,nineteen,基数词 ： 表示数目的词称为基数词。,其形式如下：,这里除,eleven,，,twelve,，,thirteen,，,fifteen,，,eighteen,为特殊形式外，,fourteen,，,sixteen,，,seventeen,，,nineteen,都是由其个位数形式后添加后缀,-teen,构成。,（,3,）从,2099,整数几十中除,twenty,，,thirty, forty,，,fifty,，,eighty,为特殊形式外，,sixty,，,seventy,，,ninety,都是其个位数形式后添加后缀,-ty,构成。表示,几十几,时，在几十和个位基数词形式之间添加连字符“,-”,21 twenty-one 76 seventy-six,序数词,是指表示顺序的数词。,口诀,基变序，有规律，词尾加上,-th,。,一，二，三，特殊记，词尾字母,t,，,d,，,d,。,八去,t,，九除,e,，,ve,要用,f,替，,ty,将,y,变成,i,，,th,前面有个,e,。,若是碰到几十几，前用基来后用序。,整十基数变序数，先把,ty,变成,tie,，要是遇上,2,位数，十位基数，个位序，,th,最后加上去！,Read and choose,There are _ books in our classroom.,A. twenty-one,B. twentieth-one,C. twentieth-first,D. twenty- first,There are _ students in our school.,A. thirty-four,B. thirty-fourth,C. thirtieth-four,D. thirtieth- fourth,My cousins birthday in on the _ of October.,A. three B. first C. the second,What date is it today? Its _of April.,A. twelfth B. the 12th C. 12th,March the _ is Womens Day.,A. eighth,B. ninth,C. tenth,D. eight,December the _ is Christmas.,A. twenty-five B. twenty-fifth,C. twentieth-five D. twenty-five,May is _ of a year.,A. the fifth months,B. the fifth month,C. the five months,D. the five month,. -How many English books are there on the table?,-There is only _English book on it.,A. a,B. an,C. one,D. the,. Sunday is the _ day of the week.,A. a B. one C. once D. first,There are _days in a week.,A. the seven,B. seventh,C. the seventh,D. seven,根据句子意思填空,。,1. Childrens Day is on the _ of June.,2. There are _ months,（月）,in a year(,年,).,3. Teachers Day is on the _ of September.,4. Three plus(,加,) six is _.,
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