数词分基数词和序数词.基数词表示数目.序数词表示顺序.1. 基数词的用法 (1) 基数词在句中主要用作主语.宾语.定语.表语.同位语.例如: Thirty of them are Party members. --- How many would you like? --- Three .please. The nine boys are from Tianjin. Six plus four is ten. We four will go with you. (2) 表示一个具体数字时.hundred, thousand, million一律不用复数,在表示一个不确定数字时则用复数.例如: Our country has a population of 1,300 million people. There are three thousand students in our school. After the war, thousands of people became homeless. Maize is the most important food crop for millions of people in the world. They arrived in twos and threes. (3) 表示“--十 的数词的复数形式可用来表示人的岁数或年代.例如: He is in his early thirties. He died still in his forties. This took place in 1930s. (4) 表示时刻用基数词.例如: We get up at six. The workers begin work at eight. 表示“几点过几分 .用介词past,但须在半小时以内.例如: ten past ten, a quarter past nine, half past twelve 表示“几点差几分 用介词to, 但分数须在半小时以上.例如: twenty to nine, five to eight, a quarter to ten 表示“几点几分 还可直接用基数词.例如: seven fifteen, eleven thirty, nine twenty 查看更多

 

题目列表(包括答案和解析)

写出下列数字的基数词和序数词.

31 ________ ________

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写出下列数字的基数词和序数词.

15 ________ ________

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写出下列数字的基数词和序数词.

14 ________ ________

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小博士:仔细观察下面的基数词和对应的序数词的区别和变化,你会发现这种变化是有规律的,你能归纳出来吗?请根据规律填出所缺的基数词和序数词,并特别注意黑体字的词。

one

first

eleven

eleventh

twenty-one

twenty-first

two

second

twelve

twelfth

twenty-two

twenty-second

three

third

thirteen

thirteenth

twenty-three

twenty-third

four

fourth

fourteen

fourteenth

twenty-four

______

five

fifth

fifteen

______

twenty-five

twenty-fifth

six

sixth

sixteen

sixteenth

twenty-six

twenty-sixth

seven

______

seventeen

seventeenth

twenty-seven

twenty-seventh

eight

eighth

eighteen

eighteenth

twenty-eight

twenty-eighth

nine

ninth

nineteen

nineteenth

twenty-nine

twenty-ninth

ten

tenth

twenty

twentieth

thirty

thirtieth

thirty-one

thirty-first

fortieth

ninetieth

hundred

hundredth

 

forty

thousand

thousandth

 

ninety

million

millionth

 

我找到规律了!请看:

1  英语序数词1~19,除first,second,third等特殊形式外,其余的一般是在相应的基数词后加-th构成。

2  有几个序数词加-th时拼法不规则,要注意。如fifth,________ ________ ________。

3  十位整数的序数词的构成方法是先将其基数词的词尾“ty”中的“y”改为“i”,再加“-eth”。如________。

4  基数词“几十几”变成序数词时,只需将个位数变成序数词,十位数不变。如________。

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写出下列数字的基数词和序数词.

1.2.3.4.8.9.12.16.20.31.

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