小學(xué)英語數(shù)詞及專項(xiàng)訓(xùn)練(已修改)
2025-04-16 00:32 本頁面
【正文】 小學(xué)英語數(shù)詞及專項(xiàng)訓(xùn)練一、數(shù)詞的分類：基數(shù)詞和序數(shù)詞?；鶖?shù)用于表示數(shù)量多少，而基數(shù)詞用于表示次序，常在日期中出現(xiàn)。區(qū)別：基數(shù)詞前面沒有“the”；序數(shù)詞前一定要有“the”。超過二十以上的兩位數(shù)需要在個(gè)位和十位之間加上“”。如：21 twentyone用基數(shù)詞來修飾可數(shù)名詞時(shí)，一定別忘了它的復(fù)數(shù)形式。如：十八個(gè)男孩 eighteen boys用基數(shù)詞修飾不可數(shù)名詞時(shí)，如是復(fù)數(shù)，變它的量詞為復(fù)數(shù)。如：兩碗米飯 two bowls of rice序數(shù)詞一般加“th”，特殊的有：first, second, third, fifth, eighth, ninth, twelfth；二十及二十以外的整十：twentieth, thirtieth, fortieth… “第幾十幾”：前面整十不變，后面“幾”改為序數(shù)詞。如：88 eightyeighth巧記基數(shù)詞和序數(shù)詞：1,2,3,特殊記,加th從4起。 8少t,9去e,逢5逢12ve變f。20~90,y要變ie。若是幾十幾,前基后序別倒位.二、數(shù)詞的表示方法：基數(shù)詞序數(shù)詞對照表1onefirst 1th2twosecond2nd3threethird3rd4fourfourth4th5fivefifth5th6sixsixth6th7sevenseventh7th8eighteighth8th9nineninth9th10tententh10th11eleven eleventh 11th12twelvetwelfth12th13thirteenthirteenth13th14fourteenfourteenth14th15fifteenfifteenth15th16sixteensixteenth16th17seventeenseventeenth17th18eighteeneighteenth18th19nineteennineteenth19th20twentytwentieth20th21twentyone twentyfirst 21st22twentytwotwentysecond22nd23twentythreetwentythird23rd24twentyfourtwentyfourth24th25twentyfivetwentyfifth25th26twentysixtwentysixth26th27twentyseventwentyseventh27th28twentyeighttwentyeighth28th29twentyninetwentyninth29th30thirtythirtieth30th40fortyfortieth40th50fiftyfiftieth50th60sixtysixtieth60th70seventyseventieth70th80eightyeightieth80th90
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