课件38张PPT。数 词中考英语总复习数词--就是表示事物的数量和顺序的词,分为基数词和序数词两种。数词基数词序数词表示事物的数量表示事物的顺序一. 基数词0 zero 1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve 基数词20 twenty 30 thirty 40 forty 50 fifty 60 sixty 70 seventy 80 eighty 90 ninety (3)20-90的整十数词均以后缀-ty结尾。表示“几十几”时, 个位和十位之间需加连词符, 如: twenty-one, thirty-two, forty-three.万以上的数字读法特点6, 500, 431, 729hundredthousandmillionbillion注意每三个数为一个单位，按照百、 十、个向下读。6，500，431，729seven hundred and twenty-nine thousandmillionbillionsix billion,five hundred million,four hundred and thirty-one thousand,hundred基数词+hundred thousand million表示具体数字表示具体、准确的数目时, hundred, thousand, million等词后不能加-s,如: five hundred, six thousand, seven million 等。hundreds thousands millions+of表示概数当hundred, thousand等数词与of 连用, 表示不具体、不准确的数目时, 词尾须加-s。如: thousands of students, millions of trees.Thousands and thousands of people have visited the city.若表示某一个数是某些特指人或东西中的一部分, hundred等后面可跟of。two hundred of the students 这些学生其中的二百个比较: two hundred students 二百个学生one student, one of the studentsa few后常接 hundred; many后常接hundreds of; several后常接hundred或hundreds of。a few hundred men几百人 many hundreds of men几百人 二. 序数词序数词1 = one 1st = first 2 = two 2nd = second 3 = three 3rd = third 4 = four 4th = fourth 5 = five 5th = fifth 6 = six 6th = sixth 7 = seven 7th = seventh 8 = eight 8th = eighth 9 = nine 9th = ninth 10 = ten 10th = tenth11 = eleven 11th = eleventh 12 = twelve 12th = twelfth 13 = thirteen 13th = thirteenth 14 = fourteen 14th =fourteenth 15 = fifteen 15th = fifteenth 16 = sixteen 16th =sixteenth 17 = seventeen 17th = seventeenth 18 = eighteen 18th =eighteenth 19 = nineteen 19th =nineteenth 20 = twenty 20th = twentieth 21 = twenty-one 21st = twenty-first 22 = twenty-two 22nd = twenty-second序数词one two three four five six seven eight nine tenfirst second third fourth fifth sixth seventh eighth ninth tenth 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty eleventh twelfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentieth11th 12th13th14th15th16th17th18th19th20th基数词基数词序数词序数词基变序,有规律,词尾加上th。123,特殊记,词尾字母t,d,d。 8去t,9去e,f来把ve替。twenty-one twenty-two twenty-three thirty forty fifty sixty seventy eighty ninety hundredtwenty-first twenty-second twenty-third thirtieth fortieth fiftieth sixtieth seventieth eightieth ninetieth hundredth 21st 22nd 23rd 30th 40th 50th 60th 70th 80th 90th 100th 整十y 变i， th前有小e来基数词 序数词注: 序数词前通常要加定冠词 the。We’ll go over it a second time. We’ve tried it three times. Must we try it a fourth time?The Second World War broke out in 1939.注: 序数词前出现不定冠词a或an时,则表示“再———, “又———。(=anoth ... ...
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