Itisgoodtoforget.
one thousand eight hundred[wʌn 'θaʊz(ə)nd eɪt 'hʌndrəd]英语中,基数词的读法是:1).1~12是独立的单词。即:one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve2).13~19,多数在末尾加-teen,但应注意13、15、18的拼写形式。例如:13→thirteen, 14→fourteen, 15→fifteen,16→sixteen,17→seventeen, 18→eighteen,19→nineteen3).从20~90整十位数,多数在词尾加-ty,但要注意20、30、40、50和80的拼法。例如: 20→twenty,30→thirty,40→forty,50→fifty,60→sixty,70→seventy,80→eighty,90→ninety4).21~99是由几十和几合起来构成,中间加连字符(-)。例如: 21→twenty-one, 32→thirty-two, 55→fifty-five, 74→seventy-four, 86→eighty-six, 99→ninety-nine5) 101~999等三位数中,十位数或个位数的前面加and。例如:101→a(one)hundred and one,230→two hundred and thirty,513→five hundred and thirteen, 678→six hundred and seventy-eight,999→nine hundred and ninety-nine6) 1,000以上的数,要用计数逗点,即从个位开始,每隔三位数加一逗点,第一个逗点处是thousand(千),第二逗点处是 million(百万), 第三个逗点处是 thousand million(英) 或billion(美)(十亿)。例如: 1,000→a (one) thousand,4,596→four thousand five hundred and ninety-six,10,000→ten thousand,18,261→eighteen thousand two hundred and sixty-one ,100,000→a (one)hundred thousand,766,132→seven hundred and sixty-six thousand one hundred and thirty-two1,000,000→a (one)million4,538,536→four million five hundred and thirty-eight thousand five hundred and thirty-six10,000,000→ten million100,000,000 a (one) hundred million十亿以上的数,英美说法不同。10,000,000,000英国a (one) thousand million美国a (one) billion10,000,000,000英国ten thousand million美国ten billion注意. 汉语中有百、千、万、亿等单位,而英语中有hundred(百), thousand(千), million(百万)等,但没有表示万和亿的专门单词,要用十进位的方法推算出来。例如: thousand 千 ,ten thousand 万,hundred thousand, 十万million ,百万 ten million千万,hundred million 亿(万万)
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