Unit+1+基數(shù)詞序數(shù)詞語(yǔ)法講義 魯教版初中英語(yǔ)六年級(jí)下冊(cè)

基數(shù)詞&序數(shù)詞內(nèi)容簡(jiǎn)介:1.基、序數(shù)詞的定義及常用用法2.?？蓟?、序數(shù)詞表3.基數(shù)詞變序數(shù)詞記憶口訣4.習(xí)題基數(shù)詞定義:基數(shù)詞表示人或物的數(shù)量。用法:①表示人或物的數(shù)量:百位數(shù)和十位數(shù)之間或者百位數(shù)和個(gè)位數(shù)之間加and，十位數(shù)和個(gè)位數(shù)之間要用連字符“-”。twobooks兩本書(shū) twenty-oneapples二十一個(gè)蘋(píng)果threehundredandforty-fivestudents三百四十五個(gè)學(xué)生②基數(shù)詞表示順序、編號(hào)時(shí)，由“單數(shù)名詞+基數(shù)詞”構(gòu)成，此時(shí)名詞和基數(shù)詞的第一個(gè)字母通常大寫(xiě)。NO.1middleschool第一中學(xué) Class7,Grade6六年級(jí)七班 Room203203房間③構(gòu)成復(fù)合形容詞:復(fù)合形容詞的構(gòu)成成分之間要用連字符“-”，并且名詞要用單數(shù)形式。atwelve-year-oldboy一個(gè)十二歲的男孩④hundred(百)，thousand(千)，million(百萬(wàn))，billion(十億)的用法:在表示精確數(shù)量時(shí)，hundred，thousand等不用復(fù)數(shù)形式;當(dāng)與“of+復(fù)數(shù)名詞”連用時(shí)，表示模糊概念，這時(shí)hundred，thousand等要用復(fù)數(shù)形式。twohundred200 hundredsof...數(shù)以百計(jì)的序數(shù)詞定義:序數(shù)詞表示人或事物的次序，翻譯成“第......”，通常要與定冠詞the連用。用法:①表示事物的先后順序：常與定冠詞the連用，“the+序數(shù)詞”，后面接單數(shù)名詞。但當(dāng)序數(shù)詞前面有名詞所有格、物主代詞或指示代詞修飾時(shí)，前面不能加the。Septemberistheninthmonthofayear.九月是一年中的第九個(gè)月。Today'sfirstclassisEnglish.今天的第一節(jié)課是英語(yǔ)。②表達(dá)日期:在表達(dá)“某月某日”時(shí)，“日”要用序數(shù)詞。HisbirthdayisonMarch5th.他的生日是三月五日。?？蓟鶖?shù)詞和序數(shù)詞表:數(shù)字1-12數(shù)字基數(shù)詞序數(shù)詞簡(jiǎn)寫(xiě)數(shù)字基數(shù)詞序數(shù)詞簡(jiǎn)寫(xiě)1onefirst1st7sevenseventh7th2twosecond2nd8eighteighth8th3threethird3rd9nineninth9th4fourfourth4th10tententh10th5fivefifth5th11eleveneleventh11th6sixsixth6th12twelvetwelfth12th數(shù)字13-19數(shù)字基數(shù)詞序數(shù)詞簡(jiǎn)寫(xiě)數(shù)字基數(shù)詞序數(shù)詞簡(jiǎn)寫(xiě)13thirteenthirteenth13th17seventeenseventeenth17th14fourteenfourteenth14th18eighteeneighteenth18th15fifteenfifteenth15th19nineteennineteenth19th16sixteensixteenth16th數(shù)字(幾十幾)——以21-29為例數(shù)字基數(shù)詞序數(shù)詞簡(jiǎn)寫(xiě)數(shù)字基數(shù)詞序數(shù)詞簡(jiǎn)寫(xiě)21twenty-onetwenty-first21st26twenty-sixtwenty-sixth26th22twenty-twotwenty-second22nd27twenty-seventwenty-seventh27th23twenty-threetwenty-third23rd28twenty-eighttwenty-eighth28th24twenty-fourtwenty-fourth24th29twenty-ninetwenty-ninth29th25twenty-fivetwenty-fifth25th數(shù)字(整十)數(shù)字基數(shù)詞序數(shù)詞√or×數(shù)字基數(shù)詞序數(shù)詞√or×20twentytwentieth20th70seventyseventieth70th30thirtythirtieth30th80eightyeightieth80th40fortyfortieth40th90ninetyninetieth90th50fiftyfiftieth50th100hundredhundredth100th60sixtysixtieth60th注:在寫(xiě)序數(shù)詞時(shí)，我們有時(shí)會(huì)用到縮寫(xiě)形式。一般習(xí)慣于用數(shù)字加上這個(gè)序數(shù)詞的最后兩個(gè)字母構(gòu)成?；鶖?shù)詞變序數(shù)詞記憶口訣:基變序，有規(guī)律；一二三，特殊記。(first,second,third)結(jié)尾各是t,d,d,th要從四加起。八去t，九去e，ty變?yōu)閠iefive,twelve兩兄弟，要以f代ve。若是遇到幾十幾，只變個(gè)位就可以。習(xí)題:一、寫(xiě)出下列單詞的序數(shù)詞one_______ 2.two_______ 3.three_______ 4.five_______eight_______ 6.nine_______ 7.eleven_______ 8.twelve_______twenty_______ 10.thirty_______ 11.forty_______ 12.twenty-one_______用所給單詞適當(dāng)形式填空—What'sthe______(five)monthoftheyear？—It'sMay.Mondayisthe______(two)dayoftheweek.3.Nextweekishis______(twenty)birthday.4.Thisishis______(two)dictionary.5.Teacher'sDayisonSeptember______(ten).6.Ithinkthe______(five)lessonisreallydifficult.7.The______letterin“HAPPY”isA.8.Tomisfourteenyearsoldandt