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      新概念英語第一冊語法知識梳理:一般現(xiàn)在時

      時間:2016-09-07 11:42:54 娛樂資訊 我要投稿

      新概念英語第一冊語法知識梳理:一般現(xiàn)在時

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      今天我們所要講的就是第一種: 一般現(xiàn)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?yōu)樵?
      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?yōu)樵,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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