小学英语五年级知识点汇总
逊克县-竞选班干部
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.
Afterbefore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, heshe was. No, heshe
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.