Unit 1-2单元 Grammar 语法知识点课件 2023-2024学年牛津译林版七年级英语下册

7B Unit 1 Grammar Cardinal numbers(基数词) and Ordinal numbers (序数词) Let’s read from 10 to 100. 10 11 12 ten eleven twelve 13 14 15 16 17 18 19 thirteen fourteen fifteen sixteen seventeen eighteen nineteen 20 30 40 50 60 70 80 90 twenty thirty forty fifty sixty seventy eighty ninety 100 one hundred 21 22 23 twenty-one twenty-two twenty-three Can you read the numbers? 715 422 554 218 901 nine hundred and one seven hundred and fifteen four hundred and twenty-two five hundred and fifty-four two hundred and eighteen large numbers 1,000 one thousand 10,000 ten thousand 100,000 one hundred thousand 1,000,000 one million 345698724 three hundred and forty-five million 345,698,724 six hundred and ninety-eight thousand seven hundred and twenty-four 从右到左,每三个数字为一个单位,用逗号隔开。 第一个逗号前是千,第二个逗号前是百万。十与个用连字符号,百与十有and. 如何读数字 ? 4,056 34,912 457,126 6,436,210 four thousand and fifty-six four hundred and fifty-seven thousand one hundred and twenty-six six million four hundred and thirty-six thousand two hundred and ten thirty-four thousand nine hundred and twelve How do we say it? 180 1,815 91,000 260,000 8,000,000 13,000,000 one hundred and eighty one thousand eight hundred and fifteen ninety-one thousand two hundred and sixty thousand eight million thirteen million numbers Cardinal numbers Ordinal numbers numbers Cardinal numbers Ordinal numbers 1 one 11 eleven eleventh 2 two 12 twelve 3 three 13 thirteen thirteenth 4 four fourth 14 fourteen fourteenth 5 five 15 fifteen fifteenth 6 six sixth 16 sixteen sixteenth 7 seven seventh 17 seventeen seventeenth 8 eight eighth 18 eighteen eighteenth 9 nine 19 nineteen nineteenth 10 ten tenth 20 twenty first second third fifth ninth twelfth twentieth numbers Cardinal numbers Ordinal numbers 21 twenty-one 22 twenty-two twenty-second 23 twenty-three twenty-third 30 thirty thirtieth 40 forty fortieth 50 fifty fiftieth 60 sixty sixtieth 70 seventy seventieth 80 eighty eightieth 90 ninety ninetieth 100 one hundred one hundredth twenty-first 1,2,3,特殊记, th从4