初中英语-过去完成时讲解ppt (共16张PPT)

The Past Perfect Tense 过去完成时
3. 常用的几种方式: 用介词by, before 等构成的时间短语.
We had learnt 20 English songs by the end of last month.
用连词when, before, after或者短语by the time 引导的时间状语从句.
already gone home.
THANK YOU
9.I h_a_d_n’_t_u_n_de_r_st_oo_d_____ the problem when class was over. (not understand)
口语练习
1.a.I got up. My brother was in the shower already. b.By the time I got up,my brother _h_a_d__g_o_t_t_e_n__ in the shower already.
The plane had taken off when I reached the airport. By the time I got up , my brother had left home.
1. 否定形式：had + not + 过去分词 (had not照样可缩写hadn't)。 2.一般疑问形式：had提到句首，
4. One of the men didn’t move, because he _h_a_d__b_r_o_k_e_n (break) his legs.
5.By yesterday evening he _ha_d__w_ri_t_te_n_______ that important letter.(write)
过去完成时
The Past Perfect Tense 过去完成时
1.过去完成时的构成
助动词 had (用于各种人称和数) + 过去分词 When I got to school, the bell had rung.
2. 过去完成时的用法: 主要是表示在过去某个时间,或是动 作之前已经发生或完成的动作.也就 是过去的过去.
By the end of……
2006
2011
learn 4000 English words
By the end of 2006, I had learned 4000 new words.
1. We h_a_d__le_a_r_n_e_d__(learn) two thousands words by the time I went to Middle School.
2.a.I ran outside to the bus stop. The bus was gone. b. By the time I ran outside to the bus stop, the bus had already gone.
3.a.I got home. I realized that my homework was still at school. b. When I got home,I realized that I had left my homework at school.
the policeman get to the shop
By the time the policeman got to the shop, Tom had run away.
Speaking--freely : By the time… or
When…
the concert be over Liu Mei wake up
回答用 Yes, 主语 + had.或 No, 主语 + hadn't.
—Had he told you to go there earlier yesterday? 他昨天告诉过你早点儿到那儿吗？ —Yes, he had. / No, he hadn't. 是的，他告诉了/不，他没有。
3.疑问词＋had ＋主语＋过去分词＋…？ 4. 被动语态形式：had + been + 过去分词。 如： When I got there, the windows had been broken.
4.a.I woke up. My clock stopped two hours ago.
b. By the time I woke up, my clock had stopped
for two hours.
5.a.I got to the cinema at 8. The film started at
常用动词的过去式和过去分词
rted
play
played
played
leave say go be take get
left said went was/wer etook got
left said gone been taken gotten
break speak drive see eat give know grow
2. I ___h_a_d_k_n_o_w__n (know) him when I was a student. 3. When we __a_rr_i_v_e_d(arrive) at the station, they _h_a_d__w_a_it_e_d_(wait) for more than twenty minutes.
6.I thought Ih_a_d_m_e_t __ the man before.(meet)
7.By six o’clock they _ha_d__w_o_rk_e_d____ for ten hours.(work)
8.I went to Nick’s house,but he _h_a_d__g_on_e_____ out.(go)
broke spoke drove saw ate gave knew grew
broken spoken driven seen eaten
given known grown
By the time I got outside, the bus had already left.
Tom run away
7:30.
b. By the time I got to the cinema, the film had
already started.
6.a.I got to the party.Jim went home an hour ago.
b. When I got to the party, Jim had
By the time Liu Mei woke up, the concert had been over.
Li Ming grow up his grandma come from America
By the time his grandma came from America, Li Ming had grown up.