1、巧记英语序数词基变序，有规律，词尾加上th；一二三，特殊记，词尾字母t,d,d(first,second,third);八减t(eighth), 九去e (ninth)，f来把ve替(five-fifth,twelve-twelfth);单词ty作结尾，ty变成tie(twenty-twentieth);若是碰到几十几，只变个位就可以(twenty-one-twenty-first).序数词表顺序，一般需用定冠词。基数词和序数词的练习题一、 写出下列词的序数词1. one 2.two 3. six 4.five 5.nine 6.twelve 7.eight 8.twenty-one 二、写出
2、下列单词的基数词1.third 2.fourth 3.tenth 4.twentieth 5.nineteenth 6.thirty-first _三、根据句子意思填空。1. Childrens Day（儿童节） is on the of June（六月）.2. There are months（月）in a year(年).3. Teachers Day(教师节) is on the of September（九月）.4. Three plus(加) six is .四、选择题( )1There are _ days in a year Athree hundred and sixty fi
3、ve Bthree hundred and sixty-five Cthree hundreds and sixty five Dthree hundreds and sixtyfive( )2My telephone number is _ Aeighty eight two forty four zero nine Beight eight two double four O nine Ceighty eight two forty-four zero nine Deight eight two four four zero nine( )3Is there any food for us
4、 _? Aten Btenth Cthe tenth Dthe ten( )4What day is today? _ AJune BTuesday CIt is hot DIts fine( )5Whats the date today? _ AIts Saturday BIts July CIts fine DIts July 15 ( )6What time do you get up every day? AIts seven oclock BSeven oclock time CAt seven DOn seven( )7. Fifty plus . A. fourty is nin
5、ety B. forty is ninety C. thirty is ninety D. fifty is ninety ( )8. December is and last month in a year. A.the twelveth B.twelve C.the twelfth D.twelft ( )9.Whats the date today?Its . A. nine B. Monday C. June 5 D.11:00 ( )10.This is her birthday, I think. A.twenty B.twentieth C.the twentieth D.the twentys ( )11.September is Teachers Day. A.the ten B.tenth C.the tenth D.the tens1
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