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<例句>

There were millions of blooms.

有数以百万计的花。

<语法分析>

基数词在句子中作主语，此外还可作定语、表语、同位语以及宾语或介词宾语等。序数词在句中可作定语、表语、主语、宾语或介词宾语等，序数词还可用在某些短语中。分数词由基数词和序数词构成，基数词代表分子，序数词代表分母，除了分子为1的情况外，序数词都要用复数形式。分数词可以作主语、定语、状语、宾语或介词宾语等。

<触类旁通>

(1) The river is about eighty miles long.

这条河约有八十英里长。

语法分析：基数词在句子中作定语。

(2) I read five of his novels.

我看了五本他写的小说。

语法分析：基数词作宾语。

(3) Its population is nearly three million.

它的人口数量接近三百万。

语法分析：基数词作表语。

(4) She's getting married a third time.

她将第三次结婚。

语法分析：序数词和a连用，表示“再一个”、“又一个”等。

(5) I thought that performance third-rate.

我认为那场演出是三流的。

语法分析：序数词可用在许多短语中。

(6) Mother divided the cake into thirds.

妈妈把蛋糕分成三份。

语法分析：分数词作宾语或介词宾语。

<巩固练习>

(1) There are _____[million] of books in that library.

(2) Tens of ______[thousand] of mossbacks used to roam the prairie.

(3) They arrived in twos and _____[three].

(4) A _____[two] swan flew down. Then a third and a fourth.

(5) I bought a _____ hand car.

(6) She died in her _____[fifty].

<参考答案>

(1) millions (2) thousands (3) threes (4) second (5) second (6) fifties