Unit 1 Grammar课件 2022-2023学年牛津译林版七年级英语下册

Grammar Unit 1 Dream homes Can you find any numbers in your lives? 100 yuan NO.23 player No.28 Shangwuneihuan Road Bus No.1 Lead-in Part A Cardinal numbers Presentation Task 1: How to read cardinal numbers. (1) 0至12样各异,一个一个单独记。 (2) 后加teen变十几,后加ty变整十。 (3) 21~99的非整十两位数,十位与个位之间用连字符“-”。 e.g. 21 twenty-one 32 thirty-two 88 eighty-eight 99 ninety-nine (4) 101~999的三位数,百位数和后面的数之间用连词and,百后用单数形式。 e.g. 101 one hundred and one 225 two hundred and twenty-five 999 nine hundred and ninety-nine How do we say the following numbers? 6 623, 138, 947 thousand million and and and (5) 1000以上的数,从后面向前数,每三位中间点逗号,第一个逗号读thousand,第二个逗号读million。每三个数字为一组,每组内后两位如果有数字,数字前用and。 Task 2: How to use cardinal numbers. (1) 表示名词量的多少 e.g. There are thirty-three desks in the room. (2) 表示年龄、价格、时间、年代等 e.g. She is fifteen years old. in the 1960s (3) 表示各种车牌、门牌和电话号码等 e.g. Room 205 (4) 表示各种数量或数的加减 e.g. Five and three is eight. (5) hundred, thousand, million的用法 前面有数词,则不用其复数,如two hundred, five thousand等。表示上百、上千、上百万时,用hundreds of, thousands of, millions of来表示。 e.g. There are three hundred students in our school. Every year, hundreds of people visit this park. Task 3: Simon is collecting some information about different countries. Help him read the numbers correctly. one hundred and eighty one thousand eight hundred and fifteen ninety-one thousand two hundred and sixty thousand eight million thirteen million Part B Ordinal numbers Wednesday is the fourth day of a week. Women’s Day is on the eighth of March. Its birthday is on the fifth of June. The flat is on the seventh floor. The fourth student comes from America. Task 1: How to spell ordinal numbers. (1) 一般的序数词的构成是在基数词词尾加上th,但是first、second、third是特殊的,另外注意ninth。 (2) 以ve结尾的基数词,ve要变为f,再加th。 e.g. five→fifth twelve→twelfth (3) 以ty结尾的基数词,y要变为ie,再加th。 e.g. twenty→twentieth thirty→thirtieth (4) 十位或者百位的基数词,只将其个位上的基数词变为序数词。 e.g. twenty-five→twenty-fifth one hundred and sixty-one→one hundred and sixty-first (5) 序数词也可以用缩写形式。 e.g. first→1st second→2nd third→3rd fourth→4th twe