初中英语现在完成时课件复习过程

3. Have you finished it yet
?
3,用for和since填空。
__fo_r____a week __fo_r____a long time __si_n_ce___1997
__fo_r___two weeks __s_in_c_e__three years ago _si_n_ce____ last month
现在完成时 句型
肯定句
肯定句式是“have（has）＋过去分词 注意：该句式中的have或has是助动词，has用于第三
人称单数，其它人称一律用have。
I have(缩写为I’ve) eaten my lunch. She has（不缩写） eaten her lunch.
否定句
现在完成时的否定形式： have not (haven’t) +过去分词 has not (hasn’t) +过去分词
already常用于肯定句中或句末； yet常用于一般疑问句或否定句末。
e.g. 1.Tom has already finished his work. 2.Tom hasn’t finished his work yet.
2) 表示过去某个动作(延续性动词)， 持续到现在, 甚至还会继续下去 的动作或状态，常与包括现在在 内的一段时间的状语连用。
I have seen the film twice. I saw the film last week.
He has lived here since 1993.
He lived here in 1993.
四、现在完成时练习
1, 写出下列动词的过去式和过去分词
1.play played played
三、现在完成时的基本用法
1.短暂性动词和延续性动词(前面为短暂性动词)
leave= be away from begin= be on
die =be dead
borrow= keep
buy=have
marry =be married
这本书露西已经借了一个月了。
Lucy has kept the book for a month.
现在完成时
庐江盛桥中学 袁兴发 2018. 6
一、谓语动词的构成： have/ has +动词过去分词
过去分词的构成
1.直接加-ed。如：play-played
2.以辅音字母加y结尾的，变y为i加ed。 如：carry-carried
3.以字母e结尾的直接加d 。如：name-named 4.重读闭音节且末尾只有一个辅音字母， 双写这个辅音字母再加-ed。如：stopstopped 5.不规则变化。如：eat- eaten, see-seen
Have you known Sandy for a long time? Yes, I have./ No, I haven’t.
Has she eaten breakfast yet？ Yes, she has./ No, she hasn’t.
二、现在完成时表示的意义及标志性词 1、表示过去发生的或已经完成的动作, 但对现
2. carry carried carried
3. name named named 4. stop stopped stopped 5. go went gone
2、用already和yet的填空
1.Tom has already finished his work.
2.Tom hasn’t finished his work yet .
在造成的影响或结果。
Have you had your breakfast yet? I have read the book twice already.
常和already, yet, never, just, before, ever, recently等标志性副词连用。
already和yet的区别
you have studied English for 6 years.
Tom has lived in Beijing since 2008.
for+一段时间 since+过去时间点 Since+一段时间+ago Since+从句（从句用一般过去时）
谓语只可用延续性动词. I’ve lived here for 8 years. I’ve lived here since 2008. I’ve lived here since 8 years ago. I’ve lived here since I was born.
I have not (haven’t) seen the film. She has not (hasn’t) seen the film.
疑问句
一般疑问句式是把助动词have或has提到主语之 前。 （回答用“Yes，．．．have （has）．／“No，．．．haven’t （hasn’t）．” ）
He has been to Xi’an twice.
他Hale Waihona Puke 经去过西安两次。（已经回来了）You can’t find him. He has gone to Xi’an.
你找不到他。他去西安了。（还没回来）
3、现在完成时与一般过去时的区别
现在完成时属于现在时态的范围，不能和表示过 去的时间状语连用，如yesterday,last night,three weeks ago,in1990等.而一般过去时只表示过去的动 作或状态，和现在没有关系。
他爷爷已经去世五年了。 His grandpa has been dead for five years.
2、have gone to 与have been to的区别：
have gone to：“去了某地”，表示某人在路上，
或者在目的地；已不在原地。
have been to：“曾去过某地” ， 说话时人已不在某地了，已经回来。
4,用have been to, have gone to填空。
1.We have been to Yangzhou already. 2.My sister has gone to the shop. She will be