专题11 数词-备战2021年中考英语语法精华课件

数 词 1 2 数词 基数词 表示事物数量 序数词 表示数目的顺序或事物的位置 3 基数词 基本构成 hundred, thousand, billion... 的用法 4 1——9 11——19 整十 几十几 ———— 基本构成 one two three four five six seven eight nine eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen ten twenty thirty forty fifty sixty seventy eighty ninety twenty-two thirty-three forty-four fifty-five sixty-six seventy-seven eighty-eight ninety-nine 5 读 法 1. 在读三位数或三位数以上的基数词时，需要在十位数之前加and 304 1,563 2. 阿拉伯数字每三位数就要用一个逗号隔开，从后往前数,单位为：thousand, million, billion 100,000,000 three hundred and four one thousand, five hundred and sixty-three a hundred million 35,845 thirty-five thousand, eight hundred and forty-five 6 hundred, thousand, million, billion 1. 与具体数词one, two...或several, some, any等连用时，用单数形式 five hundred people, two hundred books, many million trees 2. 与of连用时，要用复数形式，但前面不能再加数词 hundreds of people, millions of birds 1.Yesterday ____ people came to the town to watch the car race. A. hundreds B. hundred C. hundreds of D. hundred of 2. _____ volunteers will be needed for Project Hope in our city. A. Thousands B. Thousand of C. Three thousand D. Three thousands 7 序数词 基本构成 基本用法 8 第一 ~ 第十 第十一 ~ 第二十 第二十一 ~ 第三十 第整十 ~ 第整百 ———— ———— ———— 基本构成 first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentieth twenty-first twenty-second twenty-third twenty-fourth twenty-fifth twenty-sixth twenty-seventh twenty-eighth twenty-ninth thirtieth fortieth fiftieth sixtieth seventieth eightieth ninetieth hundredth 9 基本用法 1. 在使用序数词时，前面序加the; 如果序数词前有不定冠词，表示“再一”，“又一” We' ll read it a second time. We' ve tried it three times. Must we try it a fourth time? 我们将再读一遍。 我们已经试过三次了，还必须再试一次（四次）吗？ 2. 表示顺序 the first lesson — Lesson 1 (One) the fifth page — Page 5 (Five) the twenty-first room — Room 21(Twenty-o