一般现在时的肯定句中,主语为第三人称单数的动词变化主要体现在词尾的变化上:
1、一般情况下,直接在动词词尾+s ,例如: get→gets; take→takes.
2、以s, sh, ch, x, o 结尾的动词,在词尾+ es,例如: teach→ teaches; fix→fixes; go→goes.
3、以辅音字母+ y 结尾的动词,变y 为i,再+ es,如:study→ studies; try→tries.
4、动词 have ,遇到主语是第三人称单数时,要用 has; 动词 be 的第三人称单数形式是is.
5、含有动词第三人称单数形式的句子变否定句时,要用 doesn't + 动词原形,如:He goes to school at six in the morning. (变否定句)→ He doesn't go to school at six in the morning.
6、对含有动词第三人称单数形式的句子提问时,要用助动词 does,如:She goes home at five every day. (对划线部分提问)→ When / What time does she go home every day.
7、对含有动词第三人称单数形式的句子提问时,要用助动词 does,如:She goes home at five every day. (对划线部分提问)→ When / What time does she go home every day.
8、综上所述,只要洞悉了英语动词第三人称单数形式的变化规则,在一般现在时的句子中,都能从容应对,客随主“变”了。