中考英语数词复习PPT课件.pptx

Revision数词数词29序数词的构成基变序,有规律,一、二、三，特殊记，面目全非要注意，加th从4起，八少“t”，九去“e”，“ve”要用“f”替，(five,twelve)见“y”变成“i”和“e”，词尾加上“th”，(twenty,thirty,……ninety)若是遇到几十几，只变个位就可以。序数词缩写记清楚,数字后跟两字母。基数词的用法2、“基数词+名词”的合成形容词作定语，中间有连字符“－”,当中的名词用单数。a3–year–oldgirlaseven-dayholiday(1)序数词作定语，一般要与定冠词the或物主代词连用；Johnlivesonthesecondfloor．SheismyfirstEnglishteacher.(2)序数词前有时加a/an，表示数量上“再一”“又一”MayIaskhimathirdtime？Theyhadasecondchildin19881/4onefourtha(one)quarter3/4threefourthsthreequarters2/3twothirds1/2oneseconda(one)half半年halfayear半小时halfanhour注意：分数做主语时，谓语动词和后面的名词保持一致Onesecondofmilkwasdrunkjustnow.TwothirdsofthestudentscomefromthevillageTheSimplePresentTense一般现在时态一般现在时:结构:1.主语+be动词（am/is/are)2.主语+行为动词（do/does)标志语：usually、often、never、sometimes、onceaweek、twiceamonth、everyyearThankyou!