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小学英语五年级知识点汇总-c7娱乐电子游戏官网

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  五年级是小学学习的攻坚期,其中英语的语法也到了开始有点复杂的时期,同学们需要认真学习才能提高英语成绩。下面小编给大家分享小学英语五年级知识点汇总,希望对大家有所帮助。

  小学英语五年级知识点汇总

  在过去的时间里,两个动作中,发生在前的那个动作要用过去完成时。

  结构:had 过去分词

  after she had finished her homework, she went shopping.

  they had sold the car before i asked the price.

  the train had left before i arrived at the station.

  after/before引导的时间状语从句放在句首要在句子后面加逗号,如果放在主句后则不用加。

  1. 变疑问句将助动词移到句首. had she finished her homework?

  2. 变否定句在助动词后面加not. she hadn’t finished her homework.

  3. 肯定回答及否定回答. yes, she had. no, she hadn’t.

  4. 特殊疑问句: what had she done?

  构成:主语 助动词have, has 过去分词

  用法: 1) 表示过去发生的和现在有某种联系的动作,常和just, usually, already, since等时间副词连用

  i have just had lunch. (饱了,不用再吃了)

  he has had a cup of tea.(不渴了,不用再喝)

  they have already had their holiday. (不能再度假了)

  the boy has already read the book. (已经知道书的内容了,不用再看了)

  2) 询问别人是否做过某事一般用现在完成时:

  have you finished your homework?

  have you been to beijing?

  have he seen the film?

  3) 表示开始于过去并持续到现在的动作

  i have lived in beijing for twenty years.

  i have worked for this school for 1 year.

  4) 表示一种经历,经验:去过…地方,做过…事情,经历过…事情

  i have never had a bath.

  i have never seen a film.

  i have never been to cinema.

  i have ever been to paris.

  have been to表示去过,have gone to 表示去了

  i have been to london.(人已经回来)

  he has gone to london.(人还在那里)

  5) 表示一种结果, 一般不和时间副词联用

  i have lost my pen.

  i have hurt myself.

  he has become a teacher.

  she has broken my heart.

  句型变化:★变疑问句将助动词移到句首,变否定句在助动词后面加not.

  have you lost your pen? i have not lost my pen.

  ★肯定回答及否定回答

  yes, i have. no, i have not.

  ★特殊疑问句:

  what have you done?

  what has he done?

  一般过去时与现在完成时的区别:凡是有明确的表示过去的时间状语的句子为过去时。

  注意:有些动词表示的动作有一个终点,不能再延续,因此不能和表示一段时间状语连用.

  错:i’ve left beijing for 3 days.

  对:i left beijing 3 days ago. i have been away from being for 3 days.

  表示过去发生的动作或事件, 常和表示过去的时间状语连用,如yesterday, last night, the day before yesterday, 3 days ago,

  含有be动词的句子, 将动词变为过去式,am, is的过去式为was,are的过去式为were.如:i was at the butcher’s.

  you were a student a year ago.

  the teacher was very beautiful ten years ago.

  ★变疑问句将be动词移动到句首

  were you at the butcher’s?

  were you a student a year ago?

  was the teacher very beautiful ten years ago?

  ★变否定句在be动词后面加not

  i was not at the butcher’s.

  you were not a student a year ago.

  the teacher was not very beautiful ten years ago.

  ★肯定回答否定回答

  yes, i was. no, i was not.

  yes, you were. no, you were not.

  yes, he/she was. no, he/she was not.

  ★特殊疑问句:

  what did you do? (必背)

  不含有be动词的句子,将动词变为过去式

  i finished my homework yesterday.

  the boy went to a restaurant.

  the sawyers lived at king street a year ago.

  ★变疑问句在句首加did, 动词变为原型

  did you finish your homework yesterday?

  did the boy go to a restaurant?

  did the sawyers live at king street a year ago?

  ★变否定句在主语和动词之间加did not

  i did not finish my homework yesterday.

  the boy did not go to a restaurant.

  the sawyers did not live at king street a year ago.

  ★肯定回答及否定回答

  yes, i did. no, i didn’t.

  yes, he did. no, he didn’t.

  yes, they did. no, they did not.

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