1704949311
5,670 five thousand six hundred and seventy 46,000 forty-six thousand 920,000 nine hundred and twenty thousand 8,005,450 eight million, five thousand, four hundred and fifty 38,000,000 thirty-eight million 300,000,000 three hundred million 12,000,000,000 twelve billion 当基数词和复数名词连用时，后面动词一般也用复数形式：
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Twenty people were injured in the accident．在事故中有20个人受了伤。
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Over a hundred people were invited to the party．有一百多人被邀参加晚会。
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但在谈钱、时间、距离、重量等时，作为整体看待，后面的动词也可用单数形式：
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A thousand pounds is a lot of money．1000英镑是很多钱。
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Twenty years is a long time．20年是很长时间。
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90 miles an hour is much too fast．一个钟头开90英里太快了。
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The 2,000 miles has to be covered in three days．2000英里得在3天内走完。
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序数词（ordinal numbers）：
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序数词绝大多数都由相应的基数词加-th构成，如：
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11th eleventh
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24th twenty-fourth
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100th hundredth
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但有几个序数词比较特殊：
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第一 1st, first
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第二 2nd, second
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第三 3rd, third
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第23 23rd, twenty-third
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第31 31st, thirty-first
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第72 72nd, seventy-second
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有几个序数词在拼法上与基数词略有出入：
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第五 5th, fifth
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第八 8th, eighth /eitθ/
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第12 12th, twelfth
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20这类基数词要变y为i再加-eth：
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