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2、不含有be动词的句子，即含有一般动词的句子。
(1)第三人称单数及单数名词
He likes books.
She likes him.
The dog likes bones.
★变疑问句在句首加does, 动词变为原型
Does he like books?
Does she like him?
Does the dog like bones?
★变否定句在主语及动词之间加doesn't, 动词变为原型，原句中的动词不再有第三人称变化。
He doesn't like books.
She doesn't like him.
The dog doesn't like bones.
★肯定回答及否定回答：
Yes, he does. / No, he doesn't.
Yes, she does. / No, she doesn't
Yes, it does. / No, it doesn't.
注意：第三人称单数形式一般在动词后面加S，不要和名词复数混淆，变否定句或疑问句时名词复数没有任何变化。
(2)其他人称及复数名词
I want to have a bath.
We have some meat.
The students like smart teachers.
