初中现在完成时讲解PPT课件
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• have gone to表示某人已离开了原地，去了 另外某地，说话时，人已不在原地。后者表 示某人曾
• have been to去过某地，说话时人已不在某 地了。
• He has been to Xi‘an twice.
他曾经去过西安两次。（已经回来了）
• You can’t find him. He has gone to Xian.
• I have read the book twice already.
• 在 以 上 两 种 用 法 中 常 跟 already, not…yet, never, just, before, ever, recently等时间继续下去的状语。
• 3) 表示过去已经开始, 持续到现在, 也许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。
eat-eaten
SUCCESS
THANK YOU
2019/7/26
把下列句子Fra Baidu bibliotek为一般疑问句
1. I’ve already had dinner. Have you already had dinner?
2. He has just finished his homework. Has he just finished his homework?
肯定句
I have eaten my lunch. She has eaten her lunch. He has eaten his lunch. They have eaten their lunch.
否定句
I have not (haven’t) seen the film. She has not (hasn’t) seen the film. 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
3. Mum’s cooked the dinner. Has mum cooked the dinner?
4. Susan’s learned English at school. Has Susan learned English at school?
分清与一般过去时的用法
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，和现在不发生关系。
现在完成时
•现在完成时:
• have/ has +过去分词
• 1) 表示到现在为止已经完成或刚刚完 成的动作。
• Now we have planted all the trees. • He has just come back.
• 2) 表示过去发生的动作, 但强调结果或 对现在的影响。
• Have you had your supper?
I haven’t eaten supper.
eat-eaten
He hasn’t changed his idea.
changed
My mother hasn’t come back home.
changecome-come
把下列句子改为否定句
1. I’ve already had dinner.
Mum h_a__s_n_’__ t __c_o_o__k_e_dthe dinner.
4. Susan’s learned English at school.
Susanha_s_n__’__t_l_ear_n_e__d____ English at school.
疑问句
Have you eaten your breakfast? 现在完成时的一般疑问句形式
你找不到他。他去西安了。（没回来）
动词填空：
Have/has 提前+过去分词
Have you known Sandy for a long time?
Yes, I have/ No, I haven’t.
know-
known
Has she eaten anything since 9:00 a.m. Yes, she has/ No, she hasn’t.
eg--- I have seen the film.
eg--- I saw the film last week.
eg--- He has lived here since 1993.
eg---- He lived here in 1993.
• Notes:
• 1) have gone to 与have been to
hIav__e_n_’___t_had ________ dyientner ________.
2. He has just finished his homework.
Heh_a_s_n__’__t_fin_i_s_h_e__d__ his homeworyket________
3. Mum’s cooked the dinner.
现在完成时 Present perfect 句型
1.肯定句 现在完成时的肯定句式是“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。 2.疑问句
现在完成时的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）．” ） 3.否定句：现在完成时的否定句式是“haven't（hasn't） ＋过去分词”。
• He has studied English for 6 years.
• Mary has been busy since she came back from Hangzhou..
过去分词的构成
1.直接加-ed。如：play-played 2.以字母e结尾的直接加d 。如：namenamed 3.以辅音字母加y结尾的，变y为i加ed。如： carry-carried 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
• have been to去过某地，说话时人已不在某 地了。
• He has been to Xi‘an twice.
他曾经去过西安两次。（已经回来了）
• You can’t find him. He has gone to Xian.
• I have read the book twice already.
• 在 以 上 两 种 用 法 中 常 跟 already, not…yet, never, just, before, ever, recently等时间继续下去的状语。
• 3) 表示过去已经开始, 持续到现在, 也许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。
eat-eaten
SUCCESS
THANK YOU
2019/7/26
把下列句子Fra Baidu bibliotek为一般疑问句
1. I’ve already had dinner. Have you already had dinner?
2. He has just finished his homework. Has he just finished his homework?
肯定句
I have eaten my lunch. She has eaten her lunch. He has eaten his lunch. They have eaten their lunch.
否定句
I have not (haven’t) seen the film. She has not (hasn’t) seen the film. 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
3. Mum’s cooked the dinner. Has mum cooked the dinner?
4. Susan’s learned English at school. Has Susan learned English at school?
分清与一般过去时的用法
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，和现在不发生关系。
现在完成时
•现在完成时:
• have/ has +过去分词
• 1) 表示到现在为止已经完成或刚刚完 成的动作。
• Now we have planted all the trees. • He has just come back.
• 2) 表示过去发生的动作, 但强调结果或 对现在的影响。
• Have you had your supper?
I haven’t eaten supper.
eat-eaten
He hasn’t changed his idea.
changed
My mother hasn’t come back home.
changecome-come
把下列句子改为否定句
1. I’ve already had dinner.
Mum h_a__s_n_’__ t __c_o_o__k_e_dthe dinner.
4. Susan’s learned English at school.
Susanha_s_n__’__t_l_ear_n_e__d____ English at school.
疑问句
Have you eaten your breakfast? 现在完成时的一般疑问句形式
你找不到他。他去西安了。（没回来）
动词填空：
Have/has 提前+过去分词
Have you known Sandy for a long time?
Yes, I have/ No, I haven’t.
know-
known
Has she eaten anything since 9:00 a.m. Yes, she has/ No, she hasn’t.
eg--- I have seen the film.
eg--- I saw the film last week.
eg--- He has lived here since 1993.
eg---- He lived here in 1993.
• Notes:
• 1) have gone to 与have been to
hIav__e_n_’___t_had ________ dyientner ________.
2. He has just finished his homework.
Heh_a_s_n__’__t_fin_i_s_h_e__d__ his homeworyket________
3. Mum’s cooked the dinner.
现在完成时 Present perfect 句型
1.肯定句 现在完成时的肯定句式是“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。 2.疑问句
现在完成时的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）．” ） 3.否定句：现在完成时的否定句式是“haven't（hasn't） ＋过去分词”。
• He has studied English for 6 years.
• Mary has been busy since she came back from Hangzhou..
过去分词的构成
1.直接加-ed。如：play-played 2.以字母e结尾的直接加d 。如：namenamed 3.以辅音字母加y结尾的，变y为i加ed。如： carry-carried 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