初中英语知识归纳总结:数词第六课时 数 词一、基数词基数词表示数量onetwothreefourfivesixseveneightnineten eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteen twentythirtyfortyfiftysixtyseventyeightyninety twenty-onethirty-eightfifty-three a hundreda thousanda milliona billion注意:表示具体数目的hundren, thousand, million等均不用复数,百位数和十位数之间通常加连词and;十位数与个位数之间要加连字符。二、序数词firstsecondthirdfourthfifthsixthseventheighthninthtenth eleventhtwelfththirteenthfourteenthfifteenthsixteenthseventeentheighteenthnineteenth twentieththirtiethfortiethfiftiethsixtiethseventietheightiethninetiethhundredth twenty-firstninety-ninty a hundred and fifty-third序数词的缩写形式:由阿拉伯数字后加上序数词的最后两个字母。first---1st second --- 2nd tenth --- 10th三、时间和年月日表示法1、时间均用基数词表示:1)顺读法,先说“点钟”,再说“分钟”,如: 2:15 two fifteen 6:20 six twenty2)逆读法30分钟以内:“分钟数+ past +钟点数”,如: 3:20 --- twenty past three 2:10 --- ten past two半小时用 half,15分钟用 a quarter : 2:15 --- a quarter past two 3:30 --- half past three30分钟以外要用:“分钟数+ to + 下一个钟点”,如: 4:35 --- twenty-five to five 2:55 --- five to three2)年月日表示法 年份读法;月日读法;年月日一起读法。四、分数的表示法当分数中表示分子的数只含个位数时一般采用“分子(用基数词)+分母(用序数词)”表示。(分子大于1时,分母序数词用复数)如:one-third; two-thirds; three twenty-seconds五、数词与名词的搭配1)数词与名词连用时,它们的次序是“名词+基数词” Lesson 15; Room 1506 或者用“the + 序数词 + 名词” The Fifteenth Lesson the third floor2)数词与小时的搭配 two hours and a half three hours half an hour