Unit 2 数词讲义- 2023-2024学年沪教牛津版英语八年级上册

数词的用法和巩固练习 一、基数词 1.表示数量的多少 one apple一个苹果 ten rabbits十只兔子 2.基数词写法和读法 1)1~12是独立单词,需逐个记忆 one two three four five six seven eight nine ten eleven twelve 2)13~19是个位数词的词干后加-teen构成。其中 thirteen，fifteen,eighteen，变化不规则 thirteen、 fourteen 、fifteen 、sixteen 、seventeen、 eighteen 、nineteen 3)20~90的整十数词词尾为-ty twenty、 thirty、 forty、 fifty、sixty、 seventy 、eighty、 ninety 4)21~99之间的非整十数字是在十位数词后面加上个位数词合成，中间加上“-” 如： twenty-one 21 ninety-five 95 5） 三位以上的数词，在百位和十位之间,一般要用连词and （hundred 百 thousand 千） 132 one hundred and thirty-two 1,340 one thousand three hundred and forty ★表示“万”、亿的词英语中没有:ten thousand 一万；one hundred million一亿 ★百、千等基数词在表示准确数目时不可用复数，如: two hundred(200), ten thousand (10,000) ★hundred,thousand+“s”,则表示约数。一般与“of”连接。 Hundreds of 数百的 thousands of 数千的 Hundreds of /2 hundred ★100以上的表达一定不能漏了and，120 one hundred and twenty 205 two hundred and five {Exercise} 一、根据实际情况用适当的数词填空 1.There are ______letters in English alphabet (字母表）. 2.There are ________days in a week. 3.There are _______hours in a day. 4.There are_______minutes in an hour. 5.Thursday is the _______day of a week. 6.There are ______days in January. 7.There are _____seasons in a year. 1、 单项选择 ( )1. I have sixteen books. You have twenty books. We have ________books.() A. twenty-eight B.forty-five C.thirty-six ( )2._____visitors came to take photos of Hongyadong during the vacation. A.Thousand B. Thousand of C.Thousands D. Thousands of ( )3. There are__people in my family. A. 8th B.eight C. third ( )4.Today is Jack's birthday.He is ____years old now. A.fourteenth B.fourteen C.the fourteenth D.the fourteen ( )5.Last week,five. ____students took part in the sports meeting in our school. A.hundred B.thousands C.hundreds of D. thousands of ( )6.There are ______people in the supermarket.It's so crowded. A.hundred B. hundreds C. hundred of D.hundreds of ( )7. There are ______days in a year. A. three hundreds sixty-five B.three hundred and sixty-five C. three hundr