译林版七年级下册重点语法归纳（Unit 1-Unit 8）

译林版七年级下册 Unit 1-4 重点语法归纳 Unit 1 Home 一、基数词 基数词是用来表示“数量多少”的词，如 one, two, ten 等。 1. 基数词的构成规则 范围 规则 例词 0-12 各自独立，无规律 zero, one, two, three, ..., eleven, twelve 13-19 以 -teen 结尾 thirteen, fourteen, ..., nineteen (注意 thirteen, fifteen, eighteen 的拼写) 20-90 (整十) 以 -ty 结尾 twenty, thirty, forty, fifty, ..., ninety (注意 forty, fifty, eighty 的拼写) 21-99 (非整十) 十位数与个位数之间加连字符 "-" twenty-one, fifty-five, ninety-nine 100及以上 百位数和后两位数之间用 and 连接 456: four hundred and fifty-six 1,005: one thousand and five 【注意】 hundred, thousand, million, billion 等词前有具体数字修饰时，不加s，即：number + hundred/thousand。例如：three hundred students (三百名学生)。 当表示不确定的数量“成百上千”时，要用复数形式并与 of 连用：hundreds of, thousands of。例如：thousands of people (成千上万的人)。 读大数字时，从右向左，每三位加一个逗号。第一个逗号读 thousand，第二个逗号读 million。 二、序数词 序数词是用来表示“顺序”的词，如 first, second, tenth 等。 1. 序数词的变化规则 口诀记忆：基变序，有规律，词尾加上-th；一、二、三，特殊记，词尾字母t, d, d；八去t，九去e，ve要用f替；ty将y变成i，th前面有个e；若是遇到几十几，只变个位就可以。 类别 基数词 -> 序数词 例词 特殊变化 one -> first, two -> second, three -> third 1st, 2nd, 3rd -th 结尾 four -> fourth, six -> sixth 4th, 6th, 7th, 10th 特殊拼写 eight -> eighth, nine -> ninth, five -> fifth, twelve -> twelfth 5th, 8th, 9th, 12th 整十变化 -ty 结尾变为 -tie + th twenty -> twentieth, fifty -> fiftieth 几十几 只变个位 twenty-one -> twenty-first 2. 序数词的用法 表示编号、楼层、年级等：on the second floor (在二楼), Grade Seven 或 the seventh grade。 表示日期：May 4th (五月四日)。 序数词前通常要加定冠词 the。例如：She is the first to arrive. 【易错点】 nine 的序数词是 ninth (去e加th)。 twelve 的序数词是 twelfth (ve变f加th)。 twenty 的序数词是 twentieth (y变ie加th)。 Unit 1 过关斩将 一、单项选择 (5题) There are _____ days in a year. A. three hundred and sixty five B. three hundred and sixty-five C. three hundreds and sixty five D. three hundreds and sixty-five My brother lives on the _____ floor. He is a _____ student. A. twelve; Grade Seven B. twelfth; Grade Seventh C. twelfth; Grade Seven D. twelve; Grade Seventh September is the _____ month of a year. A. nineth B. ninth C. nine D. nineteenth _____ visitors come to the Summer Palace every year. A. Thousand of B. Two thousands C. Thousands of D. Two thousands of —How old is your sister —She is _____. Today is her _____ birthday. A. eight; eighth B. eighth; eight C. eight; eight D. eighth; eighth 二、用所给词的适当形式填空 (4题) December is the _____ (twelve) month of the year. Please turn to page _____ (twenty-two). Let's look at the picture. Our school is very big. There are about two _____ (thousand) students in it. Sunday is the _____ (one) day of a week. 三、短文填空 (9道小题) My name is Kitty. I live in a nice flat in Beijing. My flat is on the 1. _____ (nine) floor. There are 2. _____ ... ...