英语教学中常会遇到一些零散的知识点,学生不容易记住,运用时常会出错。这在一定程度上会消弱学生学习英语的积极性。那么,如何使学生轻松理解和掌握这些内容呢?巧妙运用口诀常常会起到事半功倍的效果。一、基数词变成序数词的口诀基变序,有规律,一、二、三,特殊记;-th从四上起,八加-h,九去-e;-ve要用-f替,-y变成-ie;二十几,三十几,一百几,首词不变尾变序。序数词first,second,third与对应基数词没有规律可言,需要单独记忆。但从fourth开始,序数词都以-th结尾,eight只加-h,nine要去-e后再加-th变成eighth和ninth。five和twelve这两个词要变-ve为-f再加-th。Twenty和 English teaching often encounter some scattered knowledge points, students are not easy to remember, the use of often mistakes. To a certain extent, this will weaken students’ enthusiasm for learning English. So, how to make students easily understand and master these contents? Clever use of formulas will often play a multiplier effect. First, the base numerals into ordinal nouns base sequence order, regular, one, two, three, special note; -th from four onwards, eight plus-h, nine to-e; -ve to use-f for , -y becomes -ie; twenty, thirty, one hundred, the first word of the same tail sequence. The ordinal number first, second, third and the corresponding radix are not regular, need a separate memory. But starting from the fourth, the ordinal numbers end with -th, eight with -h, nine with -e and -th with eighth and ninth. Five and twelve words to change -ve-f plus-th. Twenty and