基数词变序数词VIP免费

1stfirst2ndsecond3rdthird4thfourth5thfifth6thsixth7thseventh8theighth9thninth10thtenth11theleventh12thtwelfth13ththirteenth14thfourteenth15thfifteenth16thsixteenth17thseventeenth18theighteenth19thnineteenth20thtwentieth21sttwenty-first22ndtwenty-second23rdtwenty-third24thtwenty-fourth25thtwenty-fifth26thtwenty-sixth27thtwenty-seventh28thtwenty-eighth29thtwenty-ninth30ththirtieth31stthirty-firstLearnthesenumbersandfindouttherules:下一页上一页基数词变序数词基数词变序数词表示顺序的数词叫序数词。基数词变序数词的规则是：（1）大部分数词在词尾加th：如:fourth（第四）thirteenth（第十三）hundredth（第一百）（2）表示整十的基数词，变y为ie，再加eth;如：twentieth第二十eightieth第八十（3）特殊的序数词有:第一first,第二second，第三third，第五fifth,第八eighth,第九ninth，第十二twelfth下一页上一页(4)要把一个“几十几”，“几百几”的基数词变成序数词，只需把个位数变成序数词。如:32---thirty-second256---twohundredandfifty-sixth(5)在表示编号的东西时，可以用基数词表示，也可用序数词表示如:thefirstlesson=LessonOnethesixthgrade=GradeSix下一页上一页1stfirst2ndsecond3rdthird5thfifth8theighth12thtwelfth基变序有规律，结尾字母是th;一、二、三，特殊记，结尾字母是t,d,d；八去t,九去e;f要把ve替。ty将y变成i,th前面有个e；几十几，也好记，只变个位就可以。9thninth下一页上一页ThefirstmonthoftheyearissecondthirdfourthfifthsixtheleventhseventheighthninthtenthtwelfthFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberJanuary.下一页上一页写出下列日期的英文表达法1.3月12日2.8月8日3.1月5日4.7月20日5.12月1日6.9月9日7.4月3日8.11月2日9.2月14日10.5月30日11.6月23日12.10月21日March12thAugust8thJanuary5thJuly20thDecember1stSeptember9thApril3thNovember2ndFebruary14thMay30thJune23rdOctober21st下一页上一页Readthedates:Writing(写法）Reading（读法）January1stMarch8thAugust2ndSeptember10thJuly3rdFebruary12thOctober20thDecember25thJanuary(the)firstMarch(the)eighthAugust(the)secondSeptember(the)tenthJuly(the)thirdFebruary(the)twelfth下一页October(the)twentiethDecember(the)twenty-fifth上一页4.序数词常用作名词的定语，但当名词前面已有物主代词等限定词时，则不能再用the。如：Thesecondboylikesplayingbaseball.序数词的用法：1.序数词前一般要加定冠词the。如：Thefirstboyismybrother.2.表示编号时，常把基数词放在名词后面来表示顺序，相当于“the+序数词+名词”。如：lessonfive=thefifthlesson3.表示分数时，基数词作分子，序数词作分母，当分子大于1时，分母要用复数。如：1/4onefourth;2/5twofifths上一页下一页SchoolEventsSchoolEvents上一页下一页anopendayofschool上一页下一页anartfestivalabasketballgame上一页下一页anEnglishpartyamusicfestival上一页下一页party晚会，聚会Birthdayparty生日晚会Christmasparty圣诞晚会上一页下一页speechcontest演讲比赛EnglishcontestChinesecontest上一页下一页schooltrip学校组织的观光、郊游上一页下一页aheadmasteraschoolcalendarschoolevents上一页下一页A:DoyouhaveaSchoolday?B:Yes,wedo.A:Whenisit?B:It’s…….A:Doyouhaveanartfestival?B:No,wedon’t.上一页下一页Joe:Sally.Canyouhelpmefillinmycalendar?Sally:Sure,Joe.Joe:Whenisyourbirthdayparty?Sally:MybirthdaypartyisOctober5th.Joe:OK,andwhenisthebasketballgame?Sally:Thebasketballgame?Oh,it’sOctober2nd.Joe:Good.And,um,howabouttheschooltrip?Sally:TheschooltripisSeptember26thand27th.Joe:Andwhenisthespeechcontest?Sally:Oh,that’sFriday,September29th.Joe:Great.上一页下一页Homework: