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。其中 twenty, thirty, forty, fifty, eighty 变化不规则。
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"一万,一亿"的词英语中没有,ten thousand 十千,十千(1000×10)=一万
30万可用 three hundred thousand来表示
three hundred thousand就是三百个一千
—Have you ever _______ Korea?
—Yes. I went there last month and I saw _______ people in the city Seoul.
A. been in, four thousand
B. went to, four thousand
C. been to, thousands of
D. gone to, thousands of
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