2022小學英語語法：一般現在時

　　英語中的時態一共有八種，它們是：一般現在時、現在進行時、一般過去時、現在完成時、一般將來時、過去進行時、過去完成時、過去將來時。

　　今天我們所要講的就是第一種： 一般現在時——表示一般性，經常性的動作或一般性事實。

　　1、含有be動詞的句子

　　He is a teacher.

　　The girl is very beautiful.

　　Tim and Jack are students.

　　★變疑問句將be動詞移到句首

　　Is he a teacher?

　　Is the girl very beautiful?

　　Are Tim and Jack students?

　　★變否定句在be動詞后面加not

　　He is not a teacher.

　　The girl is not very beautiful.

　　Tim and Jack are not students.

　　★肯定回答及否定回答

　　Yes, he is. / No, he is not.

　　Yes, she is. / No, she is not.

　　Yes, they are. / No, they are not.

　　2、不含有be動詞的句子，即含有一般動詞的句子。

　　(1)第三人稱單數及單數名詞

　　He likes books.

　　She likes him.

　　The dog likes bones.

　　★變疑問句在句首加does, 動詞變為原型

　　Does he like books?

　　Does she like him?

　　Does the dog like bones?

　　★變否定句在主語及動詞之間加doesn't, 動詞變為原型，原句中的動詞不再有第三人稱變化。

　　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：第三人稱單數形式一般在動詞后面加S，不要和名詞復數混淆，變否定句或疑問句時名詞復數沒有任何變化。

　　(2)其他人稱及復數名詞

　　I want to have a bath.

　　We have some meat.

　　The students like smart teachers.

　　★變疑問句在句首加do

　　Do you want to have a bath?

　　Do we have any meat?

　　Do the students like smart teachers?

　　★變否定句在主語和動詞之間加don't.

　　You don't want to have a bath.

　　We don't have any meat.

　　The students don't like smart teachers.

　　★肯定回答及否定回答

　　Yes, I do. / No, I don't.

　　Yes, we do. /  No, we don't

　　Yes, they do. / No, they don't.

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