新概念英语第一册语法:一般现在时

 来源:沪江英语    要点:新概念英语  
编辑点评: 英语中的时态一共有八种,它们是:一般现在时、现在进行时、一般过去时、现在完成时、一般将来时、过去进行时、过去完成时、过去将来时。今天我们所要讲的就是第一种: 一般现在时——表示一般性,经常性的动作或一般性事实。


学习英语的敲门砖(First Things First),讲练基本语音、语调(包括所有音标、连读、同化)及英语中的基本语法、词法、句法及句型结构知识。在学习时应跟着老师进行大量的语音语调练习、培养良好的发音习惯,为之后进一步学习英语打下良好基础。

英语中的时态一共有八种,它们是:一般现在时、现在进行时、一般过去时、现在完成时、一般将来时、过去进行时、过去完成时、过去将来时。

  今天我们所要讲的就是第一种: 一般现在时——表示一般性,经常性的动作或一般性事实。

  1、含有be动词的句子

  He is a teacher.

  The girl is very beautiful.

  Tim and Jack are students.

  ★变疑问句将be动词移到句首

  Is he a teacher?

  Is the girl very beautiful?

  Are Tim and Jack students?

  ★变否定句在be动词后面加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.

  ★变疑问句在句首加do

  Do you want to have a bath?

  Do we have any meat?

  Do the students like smart teachers?

  ★变否定句在主语和动词之间加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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