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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,数词,中考考点,1,数词的构成。,2,数词的表达方式和用法。,语法互动,(,四,),数,词,1,基数词,的构成,(1)012,单独记。如:,zero,one,two,three,等。,(2)1319,的词尾都是,teen,。如:,fourteen,seventeen,等,但,13thirteen,,,15fifteen,,,18eighteen,需要特殊记。,(3)20,以上的整十的基数词均以,ty,结尾。如:,20twenty,,,30thirty,,,40forty,,,50fifty,,,80eighty,等。,(4)“,几十几,”,要加连字符号,“,-”,。如:,48forty-eight,97,ninety-seven,等。,语法互动,(,四,),数,词,考点一,数词的构成,(5)“,几百几十,”,或者,“,几百几十几,”,在,“,百,”,后加,and,。如:,156one hundred and fifty,six,509five hundred and nine,等。,(6),四位数或者四位数以上的基数词的拼写规律:用逗号从右往左每三位加一个逗号,第一个逗号读作,thousand(,千,),,第二个逗号读作,million(,百万,),,第三个逗号读作,billion(,十亿,),,,hundred,后莫忘,“,and”,。,3,610,three thousand six hundred and ten;,94,295,ninety-four thousand two hundred and ninety-five,;,语法互动,(,四,),数,词,2,序数词的构成,(1)“,第一,”,、,“,第二,”,、,“,第三,”,分别是,first,second,third,。,(2)“,第四,”,到,“,第十九,”,除了,fifth,eighth,ninth,twelfth,是特殊的拼写外,其余的都在相应基数词后面加,“,-,th,”,构成。如:,fourth,。,(3)20,以上的整十的序数词由相应的基数词变,y,为,i,,再加,“,-eth”,。如:,thirtythirtieth,;,fiftyfiftieth,。,(4),第一百,hundredth;,第一千,thousandth;,第一百万,millionth,。,(5)20,以上的非整十的基数词变序数词时,只变化个位数。如:,twenty-,onetwenty,-first;one hundred and,oneone,hundred and first,。,语法互动,(,四,),数,词,基数词变序数词的巧记口诀:,基变序,有规律,,一、二、三特殊记,,first,second,third,,,从四开始加,th,八去,t,,九去,e,,,五和十二变,ve,为,f,再加,-,th,,,整十变,y,为,ie,再加,-,th,若想表示几十几,只变个位就可以。,语法互动,(,四,),数,词,March 12,2014,2014,年,3,月,12,日,one third,三分之一,two thirds,三分之二,five(oclock,)5,点钟,five past seven 7,点,5,分,twenty to eight 7,点,40,分,Page 62/the sixty-second page,第六十二页,in the 1970s,在二十世纪七十年代,in his forties,在他四十多岁时,考点二,数词的表达方式,1,hundred,,,thousand,,,million,前有基数词修饰时,表示确数,其后不加,-s,,也不与,of,连用;但若用于表示,“,数百、数千、数百万,”,这样的泛指概念时,后面则加,-s,,并与,of,连用。,There are two hundred people in the meeting.,会上有,200,人。,Thousands of people go to the beach every year.,每年成千上万的人到海滨去。,语法互动,(,四,),数,词,考点三,数词的注意事项,Millions of people in the world are sending and receiving,e-mails every day.,每天,世界上有数百万人在收发邮件。,2,序数词的前边加不定冠词,a,,表示,“,再一、又一,”,。,Ill have to do it,a second time.,我得再做一次。,(,已经做过一次,),语法互动,(,四,),数,词,
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