2016年小升初英语:语法知识汇总

编辑:

2015-11-17

五 数词:基数词,序数词一、基数词

(1)1-20

one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen,

sixteen,seventeen,eighteen,nineteen,twenty

(2)21-99 先说“几十”,再说“几”,中间加连字符。

23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→

eighty-nine,91→ninety-one

(3)101—999先说“几百”,再加and,再加末两位数或末位数;

586→five hundred and eighty-six,803→eight hundred and three

(4)l,000以上,先从右往左数,每三位数加一个“,”,第一个“,”前为thousand.第二个“,”前为million,第三个“

,”前为billion

1,001→one thousand and one

18,423→eighteen thousand,four hundred and twenty-three

6,260,309→six million two hundred and sixty thousand three hundred and nine

750,000,000,000→seven hundred and fifty billion

二、序数词

(1)一般在基数词后加th

eg.four→fourth,thirteen→thirteenth

(2)不规则变化

one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve—twelfth

(3)以y结尾的十位整数,变y为ie再加th

twenty→twentieth, forty→fortieth, ninety→ninetieth

(4)从二十一后的“几十几”直至“几百几十几”或“几千几百几十几”只将个位的基数词变为序数词。

twenty-first,two hundred and forty-fifth

基数词转为序数词的口诀:

基变序,有规律,词尾加上-th.

一,二,三,特殊记,词尾字母t,d,d.

八去t,九去e, ve要用f替。

ty将y变成i,th前面有个e.

若是碰到几十几,前用基来后用序。

免责声明

威廉希尔app (51edu.com)在建设过程中引用了互联网上的一些信息资源并对有明确来源的信息注明了出处,版权归原作者及原网站所有,如果您对本站信息资源版权的归属问题存有异议,请您致信qinquan#51edu.com(将#换成@),我们会立即做出答复并及时解决。如果您认为本站有侵犯您权益的行为,请通知我们,我们一定根据实际情况及时处理。