小学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，同学们需要好好学习才能提升英语成绩。下面我们给大伙推荐小学习英语小学五年级要点大全，期望对大伙有所帮。
小学习英语小学五年级要点大全
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最重要在句子后面加逗号，假如放在主句后则不需要加。
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 hadnt finished her homework.
3. 一定回答及否定回答. Yes, she had. No, she hadnt.
4. 特殊疑问句： What had she done?
构成：主语+助动词have, has+过去分词
使用方法： 1) 表示过去发生的和目前有某种联系的动作，常和just, usually, already, since等时间副词连用
I have just had lunch.
He has had a cup of tea.
They have already had their holiday.
The boy has already read the book.
2) 询问其他人是不是做过某事通常用目前完成时：
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目前的动作
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.
He has gone to London.
5) 表示一种结果， 通常不和时间副词联用
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.
★一定回答及否定回答
Yes, I have. No, I have not.
★特殊疑问句：
What have you done?
What has he done?
通常过去时与目前完成时有什么区别：但凡有明确的表示过去的时间状语的句子为过去时。
注意：有的动词表示的动作有一个终点，不可以再延续，因此不可以和表示一段时间状语连用.
错：Ive 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 butchers.
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 butchers?
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 butchers.
You were not a student a year ago.
The teacher was not very beautiful ten years ago.
★一定回答否定回答
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?
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.
★一定回答及否定回答
Yes, I did. No, I didnt.
Yes, he did. No, he didnt.
Yes, they did. No, they did not.
