小学英语中的基数词和序数词.doc

小学英语中的基数词和序数词 在小学四年级英语中接触到了基数词和序数词～下面是我对基数词和序 数词的一些总结和介绍～希望能对大家的学习产生帮助。 基数词 基数词的定义 表示数目的词是基数词。 基数词的构成 最基本的数词如下: 1 one, 2 two, 3 three, 4 four, 5 five, 6 six, 7 seven, 8 eight, 9 nine, 10 ten, 11 eleven, 12 twelve, 13 thirteen, 14 fourteen, 15 fifteen, 16 sixteen, 17 seventeen, 18 eighteen, 19 nineteen, 20 twenty, 30 thirty, 40 forty, 50 fifty, 60 sixty, 70 seventy, 80 eighty, 90 ninety, 100 a hundred, 1,000 a thousand, 1,000,000 a million, 1,000,000,000 a billion. 基数词 1-12 是独立单词，需逐个记忆。基数词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。基数词20—90是在十位数词后面加-ty 构成。基数词21—99是在十位数词后面加上个位数词合成,中间加上连字符“ – ” 。 例如: 21 twenty-one 95 ninety-five 基数词三位以上的数词, 在百位和十位之间,一般要用连词“and”。 例如: 132 one hundred and thirty-two. 1340 one thousand three hundred and forty 表示“万”的词英语中没有。如1万可用10千来表示:ten thousand。30万可用 three hundred thousand 来表示。 基数词的用法: 从句子成分上分析～基数词在句中可用作主语～宾语～表语等。 Four of them went to the factory. 他们四个人去了工厂。 (主语) I want two. 我要两个。(宾语) There are thirty classrooms in our school. 我们学校有三十个教室。 My classmate is eighteen. 我的同学十八岁。 knowledge, Zhuang Shaozhen said pro-democracy work, lecturing is in charge of the underground. In addition, singing revolutionary songs of the Taihang mountains and the Yan ' an ode. Underground activism attracted the attention of reactionary forces, one day, Dong Ling Yuanpei (head of the Youth League of the Wujiang), suddenly the field "inspection", then in establishing the Middle circuit Education Office Wujiang, anti-communist activities He is only three, and he can't dress himself. 他只有三岁，不会穿 衣服。 从事物内容上分析，基数词用在下列情况。 1) 编号的事物用基数词。 Today we are going to study Lesson Five. 今天我们要学习第五课。 Please open your books at page ten. 请打开书，翻到十页。 We live in Room 101. 我们住在101房间。 They study in No.28 Middle School. 他们在二十八中学校学习。 2) 表示“年，月，日”时用基数词。 The accident took place in 1982. 这次事故发生在一九八二年。 I was born in Oct.11,1956. 我出生在一九五六年，十月，十一日。 You could see many flowers in June. 六月份你可以看到好多花。 3) 表示“几点钟，几点过几分”用基数词。 It's three o'clock. 现在是三点钟。 It is