2020现在完成时语法讲解PPT
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2. I saw this film last week.
Now, I know this film because
I_h_a_v_e__s_e_e_n_i_t__b_e_f_o_r_e___.
3. I did my homework yesterday.
Now, I can give it to the teacher
because I__h_a_v_e__d_o_n_e__it_._
already:“I已h经av”e通a常lre用ad于y肯re定a句d 中th,is放b在oo句k中. 。 有时，也用在疑问句中表示惊讶。
Have you eaten up all the food already ?
Yet:
“仍然，还 ” 用在疑问句和否定句 中，放在句末。
I haven’t read this book yet . Have you had breakfast yet ?
ever never
“曾经”通常用于疑问句 和肯定句中,放在句中。 I have ever seen this film.
Have you ever been to the USA ?
Exercise
根据所给情况，用just,already或yet造句。
1.After lunch you go to see a friend at her house.She says‘Would you like something to eat?’ You say: No, thank you. __I_’v_e_ju_s_t_h_ad__lu_n_c_h._( have lunch )
for + 时间段 for 2 years/a long time
since+时间点 since 2 years ago
since 1998 since she came to the school)
一、用for和since填空。
__f_o_r__three hours __f_o_r___a week _s_in_c_e__three o’clock ___f_o_r __a long time
She began to work in 2005.
She still works here now.
She has worked
at this school for 7 years.
past now
I began to teach English at this school five years ago.
9. --How long have you been like this?
--Since__A____. A.last night B. two days
10.--How long has she worked here?
--She has worked here for_B____.
A. 1993 B. six years
强调过去发生的动作对现在产生的结 果或影响
1. My father bought many books for me yesterday .
Now , I have a lot to read because
m__y_f_a_t_h_e_r_h_a_s__b_o_u_g_h_t_m__a_n_y_b_o_o_k_s__fo_r_ me.
4. I’ve had a headache since__A_____. A. I got up this morning B. five hours
5. We’ve been here for__B____. A. one hour B. one o’clock
6. My parents have owned this house for__A____.
have (has) gone和have (has) been的区别
1.have (has) gone表示“已经去某地了” She has gone to Shanghai .(她可能已在去上海 的路上，或已到上海，总之现在不在这里。)
2.have (has) been表示“曾经去过某地” She has been to Shanghai three times.(她已经不 在上海，只说明她曾经去过。)
A. a long time B. many years ago
7. They’ve been in love since__A____.
A. last spring
B. three months
8. We have known each other since__B___.
A. one year
B. last year
非延续性动词不能与时间段连用：
go/come/begin/start/die/buy/borrow/sell/leave/arrive/ receive/become等词语是瞬间动词表示的动作是一时的， 不能延续，不能与for、since等表示一段时间的词连用， 也不能用于how long引导的疑问句中。 如不能说：He has borrowed the book for two months.(ⅹ) 但可以说：He has kept the book for 2 months. 或：It has been 2 months since he borrowed the book. 或：Two months has passed since he borrowed the book.
2. We went to the USA last Monday. Today is Monday . We h_a_v_e_s_t_a_y_ed_ (stay) in the USA since last Monday.
since and for
The woman has worked at this school for 2 years.( since two years ago)
“从来不” 用在否定句中,放在句 中。
Is he famous ?I have never heard of him .
just before
“刚刚 ”用在陈述句中, 放在句中。
I have just bought a novel。
“以前”用在完成时中， 放在句末。 Ｉhave never read this kind of books before.
5. 现在完成时还往往可以同包括现在时间在内 的时间状语连用,如now, just, today, this morning/week/month/year, up to these few days/weeks/months/years,, up to present, so far 等:
Peter has written six poems so far. Man has now learned to make use of natural materials. There has been too much rain in San Francisco this year. Up to these weeks, everything has been successful.
4. 现在完成时常常与表示频度的时间状语 连用,如often, sometimes, ever, never, twice, on several occasion等:
Have you ever been to Beijing？ I have never heard of Bunny. I have used this pen only three times. George has met that gentleman on several occasions.
用法2：
I have taught English at this school for five years.
过去发生的动作一直延续到现在。
1. I am a doctor. I began to work when I was 22.Now , I am 26. I ha_v_e__w_o_rk_e_dfor four years.
4.You are going to a restaurant this evening.
You phone to reserve(预定）a table. Later your friend says ‘Shall I phone to reserve a table? ’You say: No,___I_h_a_v_e__a_lr_e_ad_y__d_o_n_e it (do)
1.They’ve known each other since__A_____. A.1995 B. three years
2.I’ve been interested in Chinese for__B____. A. last year B. one year
3. She has been a doctor for__A____. A. two years B.twFra Baidu bibliotek years ago
3. 现在完成时往往同表示不确定的过去时 间状语连用,如already, yet, just, before, recently, still, lately等标志词
He has already got a chance to go abroad. I haven't seen much of him recently (lately). We have seen that film before. Have they found the missing child yet ？
3.You are eating in a restaurant this evening. The waiter thinks you have finished and starts to take your plate away.You say: Wait a moment !___I_h_a_v_e_n_’t_f_i_n_is_h_e_d_i_t_y_e_t_. _ ( not / finish )
the Present Perfect Tense
现在完成时
助动词have (has)+过去分词done
past
Yesterday , we cleaned the classroom.
用法1
now
Now , the classroom is clean because we have cleaned it.
2. 现在完成时可以用来表示发生在过 去某一时刻一直持续到现在的动作和 状态,常与表示持续的时间状语连用. 表示持续动作或状态的动词多是延续 性动词。
I haven’t seen her these days. Mary has been ill for three days. I have lived here since 1998.
1.现在完成时用来表示过去发生或已完成 的动作或状态对现在造成的影响或结果,也 就是说,动作或状态发生在过去但它的影响 现在还存在.
I have lost my wallet.(含义是:现在我没有钱花了.) Jane has just had breakfast.(含义是:简现在不饿 了.) Michael has been ill.(含义是:现在仍然很虚弱) He has returned from abroad. (含义是:现在已在 此地)
__f_o_r __two days
__s_in_c_e__1997
__si_n_ce__yesterday
__fo_r___two weeks
afternoon
___s_in_c_e _three years
__si_n_ce__I came here ago
__si_n_ce__last Sunday __s_in_c_e__ last month
2.Joe goes out. Five minutes later,the phone rings and the caller says ‘Can I speak to Joe?’ You say: I’m afraid h_e__h_a_s_j_u_st__g_o_ne__o_u_t_.( go out )
Now, I know this film because
I_h_a_v_e__s_e_e_n_i_t__b_e_f_o_r_e___.
3. I did my homework yesterday.
Now, I can give it to the teacher
because I__h_a_v_e__d_o_n_e__it_._
already:“I已h经av”e通a常lre用ad于y肯re定a句d 中th,is放b在oo句k中. 。 有时，也用在疑问句中表示惊讶。
Have you eaten up all the food already ?
Yet:
“仍然，还 ” 用在疑问句和否定句 中，放在句末。
I haven’t read this book yet . Have you had breakfast yet ?
ever never
“曾经”通常用于疑问句 和肯定句中,放在句中。 I have ever seen this film.
Have you ever been to the USA ?
Exercise
根据所给情况，用just,already或yet造句。
1.After lunch you go to see a friend at her house.She says‘Would you like something to eat?’ You say: No, thank you. __I_’v_e_ju_s_t_h_ad__lu_n_c_h._( have lunch )
for + 时间段 for 2 years/a long time
since+时间点 since 2 years ago
since 1998 since she came to the school)
一、用for和since填空。
__f_o_r__three hours __f_o_r___a week _s_in_c_e__three o’clock ___f_o_r __a long time
She began to work in 2005.
She still works here now.
She has worked
at this school for 7 years.
past now
I began to teach English at this school five years ago.
9. --How long have you been like this?
--Since__A____. A.last night B. two days
10.--How long has she worked here?
--She has worked here for_B____.
A. 1993 B. six years
强调过去发生的动作对现在产生的结 果或影响
1. My father bought many books for me yesterday .
Now , I have a lot to read because
m__y_f_a_t_h_e_r_h_a_s__b_o_u_g_h_t_m__a_n_y_b_o_o_k_s__fo_r_ me.
4. I’ve had a headache since__A_____. A. I got up this morning B. five hours
5. We’ve been here for__B____. A. one hour B. one o’clock
6. My parents have owned this house for__A____.
have (has) gone和have (has) been的区别
1.have (has) gone表示“已经去某地了” She has gone to Shanghai .(她可能已在去上海 的路上，或已到上海，总之现在不在这里。)
2.have (has) been表示“曾经去过某地” She has been to Shanghai three times.(她已经不 在上海，只说明她曾经去过。)
A. a long time B. many years ago
7. They’ve been in love since__A____.
A. last spring
B. three months
8. We have known each other since__B___.
A. one year
B. last year
非延续性动词不能与时间段连用：
go/come/begin/start/die/buy/borrow/sell/leave/arrive/ receive/become等词语是瞬间动词表示的动作是一时的， 不能延续，不能与for、since等表示一段时间的词连用， 也不能用于how long引导的疑问句中。 如不能说：He has borrowed the book for two months.(ⅹ) 但可以说：He has kept the book for 2 months. 或：It has been 2 months since he borrowed the book. 或：Two months has passed since he borrowed the book.
2. We went to the USA last Monday. Today is Monday . We h_a_v_e_s_t_a_y_ed_ (stay) in the USA since last Monday.
since and for
The woman has worked at this school for 2 years.( since two years ago)
“从来不” 用在否定句中,放在句 中。
Is he famous ?I have never heard of him .
just before
“刚刚 ”用在陈述句中, 放在句中。
I have just bought a novel。
“以前”用在完成时中， 放在句末。 Ｉhave never read this kind of books before.
5. 现在完成时还往往可以同包括现在时间在内 的时间状语连用,如now, just, today, this morning/week/month/year, up to these few days/weeks/months/years,, up to present, so far 等:
Peter has written six poems so far. Man has now learned to make use of natural materials. There has been too much rain in San Francisco this year. Up to these weeks, everything has been successful.
4. 现在完成时常常与表示频度的时间状语 连用,如often, sometimes, ever, never, twice, on several occasion等:
Have you ever been to Beijing？ I have never heard of Bunny. I have used this pen only three times. George has met that gentleman on several occasions.
用法2：
I have taught English at this school for five years.
过去发生的动作一直延续到现在。
1. I am a doctor. I began to work when I was 22.Now , I am 26. I ha_v_e__w_o_rk_e_dfor four years.
4.You are going to a restaurant this evening.
You phone to reserve(预定）a table. Later your friend says ‘Shall I phone to reserve a table? ’You say: No,___I_h_a_v_e__a_lr_e_ad_y__d_o_n_e it (do)
1.They’ve known each other since__A_____. A.1995 B. three years
2.I’ve been interested in Chinese for__B____. A. last year B. one year
3. She has been a doctor for__A____. A. two years B.twFra Baidu bibliotek years ago
3. 现在完成时往往同表示不确定的过去时 间状语连用,如already, yet, just, before, recently, still, lately等标志词
He has already got a chance to go abroad. I haven't seen much of him recently (lately). We have seen that film before. Have they found the missing child yet ？
3.You are eating in a restaurant this evening. The waiter thinks you have finished and starts to take your plate away.You say: Wait a moment !___I_h_a_v_e_n_’t_f_i_n_is_h_e_d_i_t_y_e_t_. _ ( not / finish )
the Present Perfect Tense
现在完成时
助动词have (has)+过去分词done
past
Yesterday , we cleaned the classroom.
用法1
now
Now , the classroom is clean because we have cleaned it.
2. 现在完成时可以用来表示发生在过 去某一时刻一直持续到现在的动作和 状态,常与表示持续的时间状语连用. 表示持续动作或状态的动词多是延续 性动词。
I haven’t seen her these days. Mary has been ill for three days. I have lived here since 1998.
1.现在完成时用来表示过去发生或已完成 的动作或状态对现在造成的影响或结果,也 就是说,动作或状态发生在过去但它的影响 现在还存在.
I have lost my wallet.(含义是:现在我没有钱花了.) Jane has just had breakfast.(含义是:简现在不饿 了.) Michael has been ill.(含义是:现在仍然很虚弱) He has returned from abroad. (含义是:现在已在 此地)
__f_o_r __two days
__s_in_c_e__1997
__si_n_ce__yesterday
__fo_r___two weeks
afternoon
___s_in_c_e _three years
__si_n_ce__I came here ago
__si_n_ce__last Sunday __s_in_c_e__ last month
2.Joe goes out. Five minutes later,the phone rings and the caller says ‘Can I speak to Joe?’ You say: I’m afraid h_e__h_a_s_j_u_st__g_o_ne__o_u_t_.( go out )