动词单三变化规则:
1、一般情况下,直接在动词词尾+s。
2、以s,x,sh,ch,o结尾的'动词,在词尾+ es。
3、以辅音字母+ y 结尾的动词,先把y变为i,再加es。
4、不规则动词(特殊情况)。
变否定句时遵循的规则:
1、含有动词第三人称单数形式的句子变否定句时,要在动词前面加上doesn’t 或does not,动词的第三人称单数形式要还原成原形:格式为doesn’t/does
not+ 动词原形,如:
He goes to school at six in the morning. (变否定句) 就变换为:
He doesn't go to school at six in the morning.
2、变一般疑问句:把含有动词第三人称单数形式的变成一般疑问句时,要借用助动
词does,如:
She goes home at five every day.(变疑问句)就变换为:
Does she go home at five every day? -- Yes,she does./No,she doesn’t.