内容正文:
Unit 1 Ancient Greece
Grammar :
The present perfect tense
现在完成时
现在完成时
现在完成时的用法
现在完成时标志词
现在完成时的结构
动词变过去分词规则
现在完成时的句型转换
1
5
3
4
2
现在完成时
I ate a burger at seven.
I have eaten three burgers.
Karry studied in Chongqing in 2020.
Karry has studied in Chongqing for 3 years.
Present Perfect Tense
表示过去发生或已完成的动作对现在造成的影响和结果。
表示动作从过去已经开始,持续到现在的动作或状态。
定义:
考点一
现在完成时的用法
考点01:现在完成时的用法
I have had a phone.
用法一:表示过去发生或已经完成的某一动作对
现在造成的影响或结果。
She has already shopped.
现在完成时标志词
考点二
考点02:现在完成时的时标
already, yet,
She has already gone to Beijing. 她已经去北京了。
---Has he found his watch yet?
---No,not yet.
---他已经找到他的手表了吗?
---不,还没有。
The woman hasn't found her dog yet.
那位妇女还没有找到她的狗。
already “已经”,用于肯定句中,
yet “已经”,用于疑问句
“还”用于否定句
We have just ate breakfast.
我们刚吃过早饭。
I haven't ever spoken to her.
我未曾和她说过话。
I have never travelled by plane before.
我之前从来没有坐过飞机旅行。
考点02:现在完成时的时标
just, never, ever.
just“刚刚”
never “从来没有”
ever“曾经”
考点02:一般过去时的时标
so far (到目前为止),
up to now (到目前为止)
for(长达一段时间), since (自从).
once(一次), twice(两次),
five times.(五次)等次数
考点02:一般过去时的时标
in the past, during the past, in the last.
in the past+段时间 表示:在过去的一段时间里,
in the last +段时间: 在最后的一段时间里,
during the past+段时间 表示:在过去的一段时间期间。
I have seen little of her in the past few weeks.
最近几周我很少见到她。
During the past years, many forests have been cut down.
在过去的几年时间里, 许多森林被砍伐了。
Great changes have taken place in the last few years.
在最后的几年时间了,发生了巨大的变化。
考点三
现在完成时的结构
考点03:现在完成时的结构
I have already
seen the movie.
She has already played many films.
考点03:现在完成时的结构
Deng Ziqi has
learned music.
考点03:现在完成时的结构
考点03:现在完成时的结构
I have seen the movie.
She has played many films.
Deng Ziqi has learned music.
肯定句:主语+have/has+动词过去分词+其他。
have/has 为助动词
考点四
动词变过去分词规则
变
双
只
直
考点04:动词过去分词规则变化
考点04:动词过去式不规则变化
1. AAA型 原形、过去式和过去分词三者都相同。
即学即练
1 pick ______ 2 think ______
3 put ______ 4 have ______
5 buy ______ 6 study ______
7 teach ______ 8 stop ______
9 get ______ read ______
10
picked
thought
put
had
bough