十.情态动词 can(能,会),may(可以,可能,也许),must(必须,一定,应该)haveto(必须,不得不) 1.肯定句结构:主语+can/may/must+动词原形+其它,例如: I must go now. 2.否定句结构:在can/may/must后加not,例如: You mustn’t talk a loud in the library. 3.一般疑问句结构:把can/may/must提在主语前,例如: Must you go now?(Yes,Imust.No,Ineedn’t.) May I open the window?(Yes,you may.No,you needn’t.) 十一.had better用法 had better+动词原形表示“最好做……”,变否定句时在had better后加not。例如: You had better catch a bus. You’d better not catch a bus.(Youhad=You’d) 十二.特殊疑问句的变换 对划线部分提问时,将划线部分去掉,剩下部分变一般疑问句语序。(对主语提问例外)例如: My name is Lily. What’s your name? The river is 500 kilometres.Hong long is the river?。 相关推荐: 初二英语重点语法内容汇总 (责任编辑:admin) |