变掉;还有……,在什么情况下怎么加?(解释详细,易懂,记忆性强)
一般情况下,直接在动词词尾+s ,例如:get→gets; take→takes
以s, sh, ch, x,结尾的动词,在词尾+ es,例如: teach→ teaches; fix→fixes; go→goes
以辅音字母加o结尾的单词,在词尾+ es,例如:go-goes ,do-does
以辅音字母+ y 结尾的动词,变y 为i,再+ es,如:study→ studies; try→tries
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,was。
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.
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?
情态动词没有人称变化,因此以下的情态动词三单不变
can-can
may-may
must-must
need-need
will-will
shall-shall
dare-dare
ought-ought
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,结尾的动词,在词尾+ es,例如: teach→ teaches; fix→fixes; go→goes
3.以辅音字母加o结尾的单词,在词尾+ es,例如:go-goes ,do-does
4.以辅音字母+ y 结尾的动词,变y 为i,再+ es,如:study→ studies; try→tries
5. 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,was。
6.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.
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.情态动词没有人称变化,因此以下的情态动词三单不变can-canmay-maymust-mustneed-needwill-willshall-shalldare-dareought-ought