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1、数词1.什么是数词？数词分为基数词和序数词。表示数量的数词叫基数词；表示顺序的数词叫序数词。2.数词的分类表示数量或顺序的词叫做数词基数词onetwothreefourfivesixseveneightninetenonetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentythirtyfortyfiftysixtyseventyeightyninetyhundredtwenty-onetwenty
2、-twotwenty-threetwenty-fourtwenty-fivetwenty-sixtwenty-seventwenty-eighttwenty-nine十几:teen几十:ty几十几：基数词记忆口诀：基数词，表数量，一至十二单独记，十三、十四至十九，teen结尾莫忘记，二十、三十至九十，ty结尾整十数，若是遇到几十几，连上个位就可以。挑战1请默写1--12的基数词Let’sreview102030405060708090100tenthirtyfortyseventysixtyOnehundredfiftyninetytwentyeighty请快
3、速说出下列数字：1320301540701880905012345671234567one---firsttwo---secondthree---thirdfour---fourthfive---fifthsix---sixthseven---seventheight---eighthnine---ninthten----tenth序数词eleven---eleventhtwelve----twelfthonetwothreefirst(1st)second(2nd)third(3rd)eighteightthninethnineeighthninthfive
4、fifthtwelvetwelfth挑战2请默写1--12的序数词fiftiethtwentythirtyfortyfiftytwentieththirtiethfortiethsixtyseventyeightyninetysixtiethseventietheightiethninetieth几十，y变ie,再加thtwenty-onethirty-twoforty-threefifty-foursixty-fiveseventy-sixeighty-sevenninety-eighttwenty-firstthirty-secondforty-third
5、fifty-fourthsixty-fifthseventy-sixtheighty-seventhninety-eighth若是遇到几十几，只变个位就可以first1stsecond2ndthird3rdfourth4thfifth5thsixth6thseventh7theighth8thninth9thtenth10theleventh11thtwelfth12ththirteenth13thfourteenth14thfifteenth15thsixteenth16thseventeenth17theighteenth18thnineteenth19t
6、htwentieth20thtwenty-first(21st)twenty-second(22nd)twenty-third(23rd)twenty-fourth(24th)twenty-fifth(25th)twenty-sixth(26th)twenty-seventh(27th)twenty-eighth(28th)twenty-ninth(29th)thirtieth(30th)thirty-first(31st)缩写：1st2nd3rd4th序数词，很容易，前面用the表顺序，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
7、加h,九减e，f来把ve替，ty须变tie。若是遇到几十几，变化个位就可以。序数词记忆口诀：基数词:one,two,three,…hundred.序数词：first,second,third,fourth,fifth,…ninth,…twelfth,thirteenth,…nineteenth,twentieth,twenty-first，…thirtieth…hundredth.请把以下数词中的序数词找出来！fortyeightyfifteentwelvefivefirstthirdeightiethninthsecondfifteenthhundredth
8、eleventhtwenty-firs
